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Class Information
Number: 172
Name: Earth working >
Description: GENERAL STATEMENT OF CLASS SUBJECT MATTER










Class Number Class Name No. of Patents
172/315

Actuator on trailing implement, controlled from propelling vehicle

20
172/316

Servo-motor on implement

18
172/321

Actuator on vehicle for moving wheeled implement

10
172/317

Actuator on vehicle for relatively moving parts of trailing implement

2
172/318

Actuator on vehicle moves implement ground support vertically relative to implement frame

8
172/319

Interconnected means for moving hitch

4
172/320

Disk gang angling

1
172/204

Alternating for right or left hand operation (other than scraper)

6
172/224

Axially rotatable implement

8
172/225

With actuator

29
172/226

Gearing

2
172/227

Chain or cable

0
172/205

Draft revoluble on transverse axis

1
172/209

Interrelated tool lift and shift

1
172/211

Lift by ground support manipulation

1
172/210

Mast type hitch

0
172/212

Interrelated tool shift and ground support manipulation

7
172/206

Interrelated tool shift and lateral movement of draft member

2
172/208

Draft member latch control

0
172/207

Draft member reversed

0
172/232

Oblique axis in longitudinal vertical plane

0
172/228

Parallel separate tools

2
172/230

Independently operable

3
172/231

Power derived from ground wheel

0
172/229

Interconnected for simultaneous raising and lowering

1
172/218

Shiftable moldboard

4
172/219

Tool shifted for opposite throw

29
172/223

Moldboard type shiftable about longitudinal axis

1
172/221

Plural tools shifted about individual vertical axes

6
172/222

With translational movement of axes

1
172/220

Reversible disk with reversible cleaner

1
172/213

Tools oriented for movement in opposite directions

1
172/216

Pivoted about spaced transverse axes, or translated

1
172/215

Tilting beam

1
172/214

Wheeled frame with reversible draft member

2
172/217

With movable deflector

1
172/2

Automatic power control

249
172/4

Constant depth type

114
172/7

Draft responsive

176
172/12

Overload lift type

21
172/10

Sensitivity adjustment

21
172/8

Variable rate responsive

11
172/11

With excess draft release

2
172/9

With manual actuator to select type of condition sensed

60
172/4.5

Land leveller type

282
172/3

Motive power control

85
172/5

Obstruction sensing type (includes plant sensing)

47
172/6

Electrical

54
172/383

Axis of rotation of wheel lockable or angularly adjustable

12
172/385

Adjustable stop

5
172/386

Lockable against free swinging

23
172/384

With actuator for tilting in a vertical plane

1
172/438

Combined

30
172/34

Complete apparatus adapted for use upside down

2
172/245

Convertible; or changeable by disassembly or assembly

13
172/250

Changeable by disassembly or assembly

16
172/253

Tool added or substracted

63
172/251

Tool changeable to diverse tool

2
172/252

Tool plus added part forms diverse tool

6
172/254

Tool rearranged on support structure

17
172/249

Plural simultaneously usable tools to single tool

4
172/247

To device classifiable in another class

41
172/248

To different type of hitch

61
172/246

To land vehicle with body

7
172/133

Diverse tools

12
172/152

At least four alternately diverse laterally spaced tools (a, b, a, b)

3
172/154

All rolling

2
172/153

Alternate rolling and non-rolling

3
172/144

Colter, jointer and plow

1
172/184

Diverse rolling

25
172/187

Differing in size

10
172/186

Plane and dished disks

4
172/185

Spaced on same axis of rotation

7
172/193

First tool with spaced trailing sweep

7
172/194

Sweep adjustable

9
172/167

Fixed point or share with rotary moldboard

5
172/165

Including colter

6
172/166

Rolling colter

59
172/189

Including fabric or flexible tool

6
172/192

Including horizontal knife or cutter

10
172/161

Including implement alternating for right or left hand operation

4
172/162

Reversal of implement adjusts diverse tool

5
172/143

Including intermittently rolling tool

4
172/170

Including smooth levelling roller

15
172/171

Spaced from moldboard side of plow

3
172/172

With diverse rolling tool

7
172/173

With teeth

12
172/142

Including spring formed tool or standard

35
172/169

Including tool rotatable about vertical axis

12
172/190

Including vertical, longitudinally oriented disc or blade (e.g., as stabilizer)

11
172/191

Plural

10
172/141

Interconnected adjustment of horizontal angle of rolling and position of diverse tool

3
172/163

Jointer and plow

2
172/164

Rolling jointer

1
172/155

Laterally spaced like tools with intermediate diverse tool (a, b, a)

8
172/158

All rolling

7
172/160

Including spike tooth

2
172/157

Spaced non-rolling with intermediate rolling

6
172/159

Spaced right and left hand tools with intermediate symmetrical tool

3
172/156

Spaced rolling with intermediate nonrolling

30
172/201

Laterally spaced

6
172/202

Spaced from moldboard side of plow

7
172/203

Connected to moldboard or handle

3
172/135

One implement surrounds another

4
172/134

One located in path of implement wheel

14
172/174

Rolling and non-rolling

8
172/175

Following same path

23
172/176

Furrowing or ridging implement followed by furrow or ridge roller

29
172/178

Including disk gang

35
172/179

Non-rolling tool group with laterally co-extensive rolling tool

16
172/180

Rolling precedes non-rolling (same path)

30
172/181

Concave furrowing disk with trailing tool

10
172/177

Rolling tool has circumferentially spaced blades, tines or the like

41
172/182

Laterally spaced

13
172/183

With scissors or shearing action between adjacent faces

0
172/168

Rotating tool with fixed moldboard

1
172/188

Runner attached

10
172/195

Second implement follows path of first

14
172/199

Including drag, scraper or levelling blade

36
172/200

Proceeded by implement of different type

39
172/196

Including subsoiler

67
172/198

Including teeth

36
172/197

Teeth and scraper, leveller or drag

45
172/145

Three or more diverse implements following same path (a, b, c, or a, b, a,)

36
172/146

Four or more

34
172/147

Alternately diverse (a, b, a, b)

5
172/149

Including rolling tool

32
172/151

Diverse rolling

24
172/150

Smooth levelling roller

10
172/148

Longitudinally spaced like implements with intermediate diverse implement (a, b, a)

7
172/136

Tools usable alternately only

14
172/140

With independent means for vertical movement

28
172/138

With interconnected vertical adjustment

9
172/139

Plow and colter

6
172/137

With means to vary spacing of tools upon turning

0
172/239

Draft, pitch or ground level responsive depth control

38
172/23

Driven from or guided by stationary object, or anchored

10
172/24

Around tree or stake

3
172/26.5

Dragline scraper

3
172/26.6

Scraper part rearranged upon reverse movement

1
172/26

Guided by surface track or previously formed shoulder

64
172/25

Rotatable about vertical axis

70
172/612

Fabric or flexible tool

41
172/236

Ground engageable draft responsive lever

2
172/237

Roll over type implement

4
172/507

Ground support movable horizontally

5
172/238

Ground support moved vertically relative to frame by draft means

2
172/329

Guided by walking attendant; supported, propelled, or held in position by attendant

8
172/351

Guided or propelled by walking attendant and with ground support or draft means

7
172/361

Handle connected to tool or runner

2
172/364

Handle mounted tool adjusting, latching or locking mechanism

5
172/367

Multiple handles connected to multiple longitudinal tool carrying beams

0
172/363

Plural handles associated with relatively adjustable tools

1
172/368

Plural handles connected to opposite sides of longitudinal beam

1
172/369

With brace member

1
172/365

Tool and handle relatively adjustable

3
172/366

Vertically

1
172/362

Tool standard connected to handle

1
172/353

With body harness or engaging means

2
172/352

With stepper propulsion means

2
172/360

With wheel substitute (e.g., runner, etc.)

5
172/354

With wheel

15
172/355

Alternately usable tools rocked about wheel axis

3
172/357

Handle forward of tool

1
172/356

Plural longitudinally spaced wheels

3
172/359

Tool and handle relatively vertically adjustable

4
172/358

Tool forward of wheel

6
172/371

Hand tool

113
172/372

Adjustable

41
172/373

Plural tools relatively adjustable

12
172/374

At least one tool immovably secured to handle

7
172/375

Alternately usable diverse tools or parts

80
172/377

Channel type

19
172/376

Loop type

14
172/381

Non-planar earth working portion

45
172/378

Plural prongs, teeth or serrations

155
172/380

Made from sheet material

35
172/379

Plural rows

13
172/331

Hitch guided relative to supporting frame

0
172/349

Rolling tool

16
172/350

Handle swingably mounted on axis of tool

10
172/332

Tool manipulated with respect to mounting frame

2
172/333

Arched wheel frame (i.e., straddle row, etc.)

0
172/337

Combined implement lift and wheel adjustment

0
172/342

Cross connected drag bars

0
172/343

Foot operated

2
172/340

Multiple plant row type

0
172/334

Seat counterbalanced beam

0
172/338

Tongueless, animal draft

0
172/339

With balancing means

0
172/341

With added intermediate tool

1
172/335

With spring biasing means

1
172/336

Spring biased upwardly during operation

0
172/344

With support bracket for transport

0
172/345

Manipulated about longitudinal axis

1
172/346

Plural tools independently or oppositely manipulable

0
172/347

Spring biased

0
172/348

Vertically manipulated

2
172/370

With attendant attaching means

21
172/330

With seat for moving hitch

0
172/260.5

Having tool overload shift controlled by a fluid pressure device

49
172/21

Lawn aerator or perforator, or plug remover

183
172/22

Earth removing

168
172/13

Lawn edger

57
172/18

Impact or grapple

5
172/15

Rolling or driven cutter

94
172/16

With fixed cutter or furrower

3
172/14

With or convertible to non-earth working implement

30
172/17

With wheel or roller

58
172/439

Mast type hitch (e.g., three point hitch, etc.)

208
172/440

Angled gangs liftable as a unit

3
172/441

Tandem gangs

3
172/442

With actuator for angling groups relatively

1
172/444

Hitch quadrilateral modified during lift

11
172/445.1

Including blade, scraper, or smoother

65
172/445.2

Angularly adjustable about vertical axis

13
172/446

Laterally adjustable tool

33
172/447

Rockable about vertical axis

12
172/443

Struts on trailer or between implement parts

48
172/450

Sway limiting means or swayable tool

73
172/449

Tool movable relative to mast while earth working

39
172/448

With auxiliary vertical adjustment

40
172/445

With means operated by vertical hitch movement

15
172/451

With tool frame or bar extending beyond sides of vehicle

31
172/776

Miscellaneous (e.g., frames, etc.)

170
172/810

Mounting for pushed tool at end of motor vehicle

48
172/833

Tool prepares wheel path for passage of wheel

14
172/811

Transversely mounted blade (e.g., bulldozer, etc.)

80
172/818

Blade angle adjustable in a horizontal plane

27
172/823

And tilt of blade adjustable

9
172/819

Power-operated adjusting means

15
172/822

And tilt of blade adjustable

11
172/820

Blade angled about fixed, central, generally vertical axis

15
172/821

And tilt of blade adjustable in a generally vertical plane

49
172/816

Blade mounting includes resilient connection

37
172/815

Contiguous, relatively adjustable blades; or blade having relatively adjustable earth-engaging parts

73
172/813

Fluid line specifically arranged, or shield for system component

13
172/824

Having adjustable tilt of angularly fixed blade

22
172/825

About a pivot axis fixed to mounting

18
172/826

Including adjustable length device between mounting means and upper corner portion of blade

33
172/814

Having means controlling drive for interconnected vehicles

6
172/827

Having means to prevent lateral movement of mounting or blade

14
172/817

Removable attachment for general purpose vehicle

105
172/832

With blade-carried ground support

14
172/828

With power means for raising and lowering blade

13
172/829

Including elongated flexible element (e.g., cable) connecting power means to tool or mounting means

10
172/830

Power means is fluid servomotor

12
172/831

Plural servomotors

25
172/812

With valve or pump for hydraulic control system

43
172/834

With tool-carried ground support

11
172/382

Multiple level tools

11
172/261

Overload shifting

23
172/263

Actuator released

8
172/264

Against spring return device

39
172/265

Swinging about fixed pivot axis

43
172/266

Including toggle linkage

21
172/267

Toggle adjustable

17
172/268

Toggle links at acute angle

3
172/262

Alternate tool brought into operation upon shift

3
172/271

Frangible lock (e.g., shear pin, etc.)

38
172/270

Friction lock

0
172/269

Resilient latch

13
172/900

Plant thinners

3
172/613

Plural relatively movable tools

4
172/659

Adjustable about spaced horizontal axes

1
172/660

Concurrent adjustment

1
172/641

Beam spreader of the pivoted yoke type

0
172/642

Pair of tools cooperate to move earth to or from plant row

2
172/634

Parallel, pivotally adjusted tool bars

6
172/639

Specific mounting for pivoted tool bar

11
172/635

With actuator

7
172/638

Gear

0
172/637

Plural actuators, independently pivoted tool bars

6
172/636

Tools also adjustable about vertical or longitudinal axes

3
172/619

Plural tool groups relatively vertically movable because of operation

9
172/632

Group movable about oblique horizontal axis

2
172/633

Group pivotal about intermediate transverse axis

7
172/623

Groups abreast and in tandem

0
172/631

Groups movable about common longitudinal axis

2
172/630

Groups pivoted to opposite sides of longitudinal draft member

5
172/620

Parallel transverse tooth bars

7
172/621

Spring biased bars

9
172/622

With actuator to vary inclination of teeth

9
172/624

Plural groups movably connected to forward transverse draft bar

13
172/627

Groups also connected to one another

2
172/626

Sectional draft bar

5
172/625

With alternate draft means (spaced 90 degrees)

24
172/624.5

With parallelogram-type linkage

65
172/628

Similar groups arranged to form a triangular shape

0
172/629

Three or more laterally spaced groups

8
172/657

Relatively movable because of operation

43
172/658

With interconnecting means to prevent independent lateral movement

2
172/643

Spring formed tool or standard

33
172/640

Tool group pivotally adjustable about horizontal axis

11
172/662

Tool movable to non-use position

69
172/614

Tool pivots on pivoted member when member moves

2
172/615

Tools connected to parallel pivoted bars

9
172/616

Bars pivoted about vertical axis

2
172/617

Also pivoted about horizontal axis

2
172/618

Tools assume different angularity for opposite draft

6
172/644

Tools longitudinally adjustable to and from transverse alignment

0
172/645

Tools relatively adjustable horizontally without causing vertical displacement

7
172/648

Collapsible lazy tong group

1
172/646

Laterally adjustable tools, independently free to move vertically

7
172/654

Main central beam, tools laterally adjustable relative thereto

4
172/655

Tool adjustable vertically and laterally

4
172/649

Tool groups relatively horizontally adjustable

3
172/650

Also vertically adjustable

3
172/651

Group pivoted about vertical axis

2
172/652

V-shaped

1
172/653

Nested

0
172/656

Tool laterally adjustable

13
172/647

Tools simultaneously adjustable about their individual, spaced vertical axes

19
172/661

Vertically translatable tool

18
172/310

Plural wheeled implements

46
172/312

Implement draft connection forwardly of rear of self-propelled vehicle

0
172/314

Implements in echelon (e.g., gang plows, etc.)

24
172/313

Laterally spaced with separate draft tongues

19
172/311

Outrigged implement adjustable inwardly

371
172/1

Processes

117
172/256

Propulsion unit guided by walking attendant or part of articulated vehicle

16
172/258

Endless track or single driven wheel

5
172/257

Riding attendant

7
172/260

With actuator for moving earth working element vertically

6
172/259

With vertically adjustable wheel

9
172/518

Rolling, rotating or orbitally moving tool

30
172/527

Axis substantially longitudinal

2
172/522

Axis substantially vertical

7
172/523

With vertically extending teeth

4
172/526

Plural tools

17
172/524

Positioning means engaging circumference

2
172/525

With weight

1
172/533

Clutch between shaft and rotating element

1
172/537

Corrugated surface rollers

15
172/535

Detachable rim for disk

5
172/604

Detailed disk structure per se

74
172/567

Disk gang and single disk on diverse axes

6
172/568

Disk gang with movable or removable section

6
172/599

Disk gang

21
172/601

Disks rotatable relative to axle

5
172/600

Supported for tilting and horizontal angling adjustment

10
172/603

Disk horizontally angularly changeable

20
172/569

Disks pivoted on vertical axes with interconnected means for moving them indentically

9
172/538

Paired press rims (e.g., planter press wheels, etc.)

36
172/574

Plural disks with individual mount or axis

55
172/575

Touching disks

16
172/576

With interconnected means for adjusting a plurality of disks

4
172/579

Plural groups of disks

15
172/581

Groups changeable to different types of arrangements

10
172/584

Horizontally angularly adjustable group

11
172/595

Double tandem groups

9
172/587

Groups laterally spaced and unaligned

7
172/585

Groups of unequal length

4
172/588

Hitch longitudinally movable on tongue and groups abreast

4
172/586

More than two laterally positioned groups

3
172/596

Tandem groups

3
172/597

Toggle joint between groups

2
172/598

Thrust means directly between group axles

0
172/589

Turning connection offset from draft connection

0
172/590

Latch responsive to tractor motion

0
172/591

With manual actuator

1
172/592

Concentric controls

0
172/594

Double tandem groups

2
172/593

Separate handles for independent gang adjustment

0
172/580

Power operated actuator

4
172/583

Vertically adjustable group

19
172/582

With independent lateral adjustment

6
172/577

Reversible group

2
172/557

Rim with spokes

4
172/532

Screw or spiral

21
172/602

Single disk freely swayable

8
172/539

Smooth roller with groove, rim or disk

4
172/540

Tool has circumferentially spaced teeth, tines, blades or the like

116
172/545

Blades or teeth change position relative to each other or rotating support during rotation

15
172/546

With means for causing movement

1
172/554

Drum with axially spaced teeth or blades

78
172/555

Integral disk

34
172/552

Laterally extending bar or blade with skeleton support (e.g., lawn mower type, etc.)

30
172/553

Toothed bar or blade

5
172/551

Rolling tool spring biased into ground contact

47
172/544

Spring moving or mounting means for tooth or blade

6
172/543

Spring tooth or blade

9
172/550

Tooth or blade adjustable on carrier

5
172/556

Tooth or blade axially clamped to hub face (e.g., hoe wheel type, etc.)

38
172/542

Tooth or blade on endless carrier

1
172/548

Tooth or blade units on single axle

50
172/549

Tooth or blade units angularly adjustable on axle

9
172/547

With cleaning means

21
172/541

With means for preventing ground engagement of teeth or blades

1
172/520

Tools on different axes in mutual driving relationship

16
172/534

Wheel or roller with peripherally spaced plant saving means

1
172/536

Wheel, roller or gauge and axially adjacent tool on same axis

26
172/558

With disk cleaning means

33
172/560

Cleaner for pair of converging disks

9
172/561

Cleaners for opposite sides of disk

4
172/563

Cleaners with common operator

2
172/564

Mounted on rock shaft

0
172/565

Operating means moves parallel to disk gang axis

2
172/562

Plural cleaners for single disk

2
172/559

Rotatably mounted cleaning means

16
172/566

Spring biased toward disk

22
172/528

With means for stopping or retarding rotation

1
172/529

Positive stop

2
172/530

Wheel or motor controlled

3
172/521

With power take-off from tool or wheel

1
172/570

With spring means other than for detent

9
172/572

Spring acts to move tool vertically

55
172/573

Plural tools, individually spring urged

30
172/571

Spring is for tool group horizontal angling

0
172/578

With wheel (not on motor vehicle)

7
172/531

Wobble discs

4
172/519

Yieldable material rim (e.g., rubber, etc.)

22
172/781

Scraper between front and rear ground supports of vehicle

38
172/789

Actuator for bodily shifting scraper subframe draft connection

18
172/798

Actuator for tilting wheel relative to vehicle frame

2
172/790

Counterbalance means for scraper adjustment

0
172/786

Plural scrapers

9
172/787

Spaced and in same path

14
172/788

Push frame for scrapers

10
172/795

Specific actuator between frame and scraper

34
172/797

For adjustment about longitudinal axis

19
172/796

For adjustment about vertical axis

28
172/799

Specific means for horizontally angling wheel relative to vehicle frame

5
172/794

Spring biased into ground contact

5
172/791

Three or more independently operable scraper actuators

13
172/792

Scraper adjustable about vertical axis of annular support

6
172/793

Actuator for laterally shifting support

16
172/784

With diverse tool or portion

25
172/785

Non-scraping tool precedes and spaced from scraper

10
172/782

With laterally offset inclined shoulder forming tool

11
172/783

With scraper attached ground support

5
172/780

Scraper between widely spaced front and rear ground supports

20
172/779

Scraper position automatically controlled by linkage for levelling

11
172/777

Scraper supports narrow depending tool

34
172/778

Tool supporting clamp means engage upper and lower edges

4
172/293

Series of like elements sequentially operated by power cycle

1
172/294

Sequentially operated servo-motors

3
172/296

Shaft with spirally arranged projections

0
172/295

Tool forward of rear of motor vehicle

0
172/605

Shiftable hitch moves tool relative to frame

20
172/19

Sod cutter

88
172/20

With means for vertical transverse cutting while moving

49
172/292

Specific propelling means

27
172/297

Tool forward of rear of motor vehicle

15
172/306

Connected to front axle

6
172/307

Parallelogram type lift

9
172/309

Pivoted on horizontal diagonal axis

0
172/299

Power actuator with cut-out or lock-out means

1
172/303

Power actuator with manual adjusting or supplemental manual actuating means

0
172/304

Tools independently actuatable

5
172/298

With ground support

7
172/305

With means for moving tool laterally

10
172/308

With push bar

4
172/300

With rearwardly mounted tool

2
172/301

Tools actuated by independent power units

0
172/302

Front and rear independent

2
172/681

Tool, standard or connection

18
172/734

Adjustable

10
172/739

Adjustable about horizontal transverse axis

30
172/740

Tool adjustably connected to standard

14
172/741

Laterally adjustable

17
172/743

Adjustable about a longitudinal axis

7
172/742

Adjustable about a vertical axis

24
172/736

Relatively adjustable earth engaging parts

17
172/737

Element adjusted for wear compensation

7
172/738

Relatively adjustable tool and runner

3
172/735

To present different working portion

7
172/744

Vertically adjustable

39
172/684.5

Frame-supported blade, scraper, or smoother drawn by vehicle

124
172/749

Having separable parts interconnected without detachable fastening means

16
172/751

Captive fastener or wedge tightened or engaged after assembly

32
172/750

Self-engaging snap fastener

16
172/753

Interlocked or interfitted parts

91
172/683

Latched in earth working position

14
172/721

Non-rectangular, symmetrical type

21
172/733

Constant height and v-shape

10
172/722

Earth breaking part and separately attached wings

18
172/723

Draw cut point

8
172/724

Wings integral

28
172/726

Having separable parts jointed at centerline

6
172/731

Lateral extent decreases upwardly

7
172/732

Triangular blade

10
172/730

Winged

67
172/727

With attached runner or depth gauge

1
172/729

Adjustable

1
172/728

With additional blades attached to runner

1
172/725

With separable vertical cutter on centerline

7
172/748

Pivoted tool

27
172/714

Plural earth engaging parts relatively movable because of operation

4
172/716

Movable moldboard for inverting furrow slice

2
172/717

Belt

0
172/718

Roller

3
172/715

Rotary landslide

0
172/685

Plural tools

7
172/689

Closed geometrically shaped frame

4
172/694

Laterally spaced tools

5
172/695

Tools in echelon (3 or more)

4
172/697

Tools in transverse alignment

6
172/696

Tools on opposite side of longitudinal beam

4
172/687

Longitudinally spaced rows

3
172/688

Staggered

10
172/691

Mounted on transverse or oblique tool bar

8
172/692

Angularly adjustable bar

3
172/693

Oblique bar

4
172/686

Right and left hand type

12
172/690

V-shaped frame

8
172/772

Removable tool portion (e.g., replaceable cutting or wearing element for tool)

62
172/772.5

Portion is cutting edge

49
172/702

Reversible part

7
172/703

Earth engaging means

8
172/704

Portion of earth engaging assembly

13
172/701

Ridgers

34
172/754

Share and furrow slice inverting moldboard

6
172/758

Furrow slice cutter or breaker

1
172/757

Furrow slice retainer

1
172/755

Heating or lubricating

3
172/761

Serrated, toothed or notched point or share

0
172/756

Skeleton

0
172/760

Specific moldboard shape

6
172/759

With additional element juxtaposed to moldboard

2
172/747

Specific material

71
172/763

Specific standard and beam connection

66
172/773

Specific standard

23
172/775

Braced

4
172/774

With lateral offset

5
172/762

Specific tool and standard connection

75
172/765

Specific tool shape

18
172/770

Angularly related tool surfaces

34
172/768

Draw cut type

4
172/769

Separable parts

13
172/766

Tool with parallel fingers or blades

20
172/771

With curved surface

33
172/705

Spring biased or formed tool or tool part

79
172/709

Laterally biased

12
172/711

Leaf or torsion spring

28
172/710

Pivoted tool biased beyond pivot

25
172/706

Plural earth engaging parts relatively movable during operation

5
172/707

Spring formed tool or standard

27
172/708

With separate or rigid earth working portion

23
172/699

Subsoilers

130
172/700

With separate vertically spaced earth working portion attached to same standard

22
172/720

Subsurface blade (e.g., weeder, etc.)

25
172/712

Tool assumes different position for opposite draft

6
172/682

Tool flexed to change contour

2
172/701.1

Tool is transversely elongated blade (e.g., bulldozer)

46
172/701.2

Having removable corner bit

14
172/701.3

Having removable cutting edge

59
172/684

Tool pivots on member when member moves

2
172/698

Tool with laterally spaced standards

15
172/713

Tooth

86
172/745

Welded

23
172/719

With add-on cutting or wearing element applied directly over, or onto, the original cutting element

82
172/746

With portion extended beyond landslide

0
172/752

With separable vertical planar longitudinal cutter (e.g., colter, etc.)

6
172/764

With separate runner, gauge, shoe or landslide

10
172/799.5

Towed scraper with ground support wheels

51
172/255

Turn lifts tool off or lowers tool into ground

5
172/452

With actuator adapted to lift tool for transport on wheeled frame or broadly claimed implement

53
172/453

Actuator electrically powered

9
172/503

Actuator slidably connected to tool

2
172/454

Angled gangs lifted as a unit

8
172/455

Tandem gangs

5
172/456

Central group liftable vertically, side groups movable inwardly

168
172/495

Foot operated actuator

1
172/496

With combined or optional hand actuation

0
172/463

Lift actuator moves with tool or forms removable unit therewith

9
172/501

Lost motion connection between actuator and tool

41
172/502

Flexible connector

14
172/494

Overcenter or toggle holding means

6
172/459

Pivotable about longitudinal axis (e.g., lateral levelling, etc.)

45
172/460

Tool independently vertically adjustable at transversely spaced points

9
172/472

Plural tools simultaneously raised, individually lowered

0
172/468

Plural tools, independently actuatable

9
172/469

By single selectively connectable actuator

4
172/471

Three or more independent actuators

4
172/470

With separate actuator for concurrent lift or with interlock

5
172/462

Plural tools, individually spring biased down, lifted as unit

22
172/485

Power actuator with manual adjusting or supplemental manual actuating means

4
172/487

Constant height depth adjustment

1
172/486

Manual actuation coextensive with power

0
172/490

Rotary drum actuator

2
172/504

Screw actuator

11
172/491

Servo-motor actuator

10
172/464

Servo-motor forces tool down

36
172/465

Servo-motor with follow-up control (e.g., motion responsive position control, etc.)

3
172/488

Single lift actuator for plural relatively movable tools

12
172/489

Tools relatively moved during lift

3
172/506

Spring assisted or spring actuator

6
172/478

Tool and lift actuator on opposite sides of transverse pivot axis

13
172/505

Tool connected to frame by bail

0
172/473

Tool differentially or sequentially lifted at longitudinally spaced points

2
172/466

Tool held raised for relieving load on servo-motor

37
172/479

Tool lifted forward of transverse pivot axis

3
172/461

Tool lifted with respect to stationary or relatively movable cleaner

0
172/474

Tool rocked about independently vertically adjustable transverse axis

13
172/475

Plural longitudinally spaced actuators

0
172/497

Tool spring biased during operation

7
172/498

Biased to neutral position

3
172/499

Spring means alternately biases tool in opposite directions

1
172/500

Tool spring pressed downwardly

25
172/482

Tool swings about rock shaft axis

21
172/480

Tool swung about freely shiftable or delayed pivot

0
172/483

Translatable tool

19
172/484

By parallel links

59
172/458

Vertical movement interrelated with another

12
172/476

With lateral adjustment

7
172/477

Tool adjustable about vertical axis

10
172/457

With means to restrain lateral sway when raised

22
172/492

With power take-off for actuator

1
172/493

Position controlled power disengagement

1
172/481

With separate latch

25
172/467

With shiftable hitch causing vertical movement

9
172/322

With actuator for rocking tool about wheel axis

11
172/323

Unstable wheeled frame moved by actuator

2
172/324

With actuator on trailing ground supported frame for moving draft means laterally or vertically

13
172/325

Tool rigidly connected to tongue

6
172/326

Vertically

8
172/327

With vertically adjustable ground support

13
172/328

Interconnected means for adjusting draft means and ground support

41
172/663

With actuator

14
172/666

For adjustment about longitudinal axis

10
172/667

For lateral adjustment

22
172/664

For relatively movable earth engaging parts

6
172/665

Tool and runner

4
172/668

For vertical adjustment with respect to wheeled frame

20
172/606

With cleaner

13
172/607

Cleaner surrounds tooth

1
172/608

Clearing roller

5
172/609

For plural tools

4
172/610

Scraper

36
172/677

With draft detail

102
172/679

Adjustable

37
172/680

Vertical

36
172/678

Spring biased hitch

20
172/35

With drive means for tool or cleaner

7
172/41

Attendant supported tool

84
172/91

Blade movable with respect to cyclically driven carrier

26
172/96

Blade flexible or with yieldable mount on carrier

36
172/92

With means for moving blade

6
172/94

Blade oscillating arcuately or swivelly with respect to rotary carrier

7
172/95

By cam or crank

22
172/93

Rectilinearly reciprocating blade

14
172/100

Blade on endless driven belt or chain

9
172/46

Coaxial tools oppositely rotated

3
172/97

Compound motion for tool (e.g., reciprocating and oscillating, reciprocating and rotating)

22
172/105

Driven from rolling or driven ground wheel

7
172/106

Belt or chain drive

9
172/82

Driven tool selectively shiftable along line of travel

3
172/83

Tool drive interrupted by shifting tool

0
172/45

Flails

35
172/42

Guided by walking attendant

152
172/43

With ground support vertically adjustable relative to frame

44
172/76

Implement with ground support for depth control

7
172/79

Tool driven from prime mover on vehicle

12
172/78

Vertically adjustable ground support

43
172/77

Vertically biased implement

2
172/75

Interconnected tool lift and drive control

14
172/61

Intermittent drive for tool

3
172/62

With spring return

3
172/90

Irregular or off-center ground-engaging wheel or support

6
172/48

Plural driven tools

15
172/49

Contiguous cooperating or intermeshing rotary ground engaging tools

21
172/49.5

Rotating about vertical axes

136
172/50

Diverse tools

7
172/51

All rotary

7
172/52

Parallel axes

21
172/54

Oscillating tool

8
172/53

Rectilinearly reciprocating tool

8
172/57

Laterally spaced tools

10
172/58

Longitudinal axes

6
172/60

Transverse axes

33
172/59

Vertical axes

69
172/55

Plural groups of disks

8
172/56

Staggered tools

9
172/54.5

Tool reciprocates or oscillates within a generally horizontal plane

25
172/84

Simultaneously reciprocating and oscillating blade having elongated shank

8
172/89

Means for varying contour of path of blade

4
172/85

Transverse chopping type

0
172/87

Means for varying contour of path of blade

1
172/86

With plural cranks or cams driving each blade

1
172/88

With plural cranks or cams driving each blade

4
172/114

Specific propelling means

12
172/116

Tool propels implement

21
172/115

Tool steers implement

2
172/44

Subsurface shaft or bar (e.g., rod weeder)

20
172/36

Subsurface shears or nippers

3
172/125

Tool drive details

143
172/118

Tool driven about axis transverse to draft line

23
172/120

Disk or planar cutter (e.g., saw, etc.)

24
172/122

Drum with teeth or blades

46
172/121

Laterally extending bar or blade with skeleton support (e.g., lawn mower type, etc.)

10
172/123

Rotary driven tool

136
172/119

Screw or spiral rib, blade or tooth row

29
172/124

Tool driven about diagonal axis

13
172/110

Tool driven about generally vertical axis (e.g., oscillating choppers, etc.)

11
172/111

Rotary driven tool

66
172/107

Tool driven about horizontal, longitudinal axis

7
172/108

Rotary driven tool

17
172/109

Adjustable tooth or blade

2
172/117

Tool freely or yieldably mounted on chassis

39
172/101

Tool guided for rectilinear reciprocation

21
172/102

Tool moves in horizontal, transverse path

23
172/98

Tool mounted for lateral shifting

19
172/99

About generally vertical axis

8
172/37

Tool rotated by attendant

3
172/40

Vibrating tool

138
172/39

With cleaner or comminutor spaced from ground surface

13
172/112

With deflector or shield for thrown material

83
172/113

Laterally directed outlet flow

5
172/63

With non-driven tool (e.g., plow, harrow, drag, scraper, knife or roll, etc.)

30
172/66

Cooperating driven cleaner or comminutor and contiguous tool

9
172/67

Driven comminutor at outlet of earth guide

6
172/70

Fore-and-aft non-driven tool

28
172/65

Interdigitating non-driven and driven tools

4
172/64

Non-driven furrow opener and driven dam former

2
172/71

Non-driven tool follows path of driven tool

32
172/72

Leveling drag or furrow shaper

27
172/68

Rolling tool

85
172/69

With tool drive from rolling tool

12
172/73

Staggered driven and non-driven tool (e.g., cotton chopper, etc.)

5
172/38

With obstruction feeling device for moving or releasing implement

10
172/103

With overload relief or clutch in drive train (e.g., overload release, etc.)

24
172/104

Unidirectional clutch in drive from ground wheel

0
172/81

With plant deflector or protector

12
172/74

With power take-off from tool drive to adjust tool

9
172/47

With specific relationship of mast-type hitch (i.e., three-point hitch) to implement

66
172/80

With wheel substitute (e.g., runner, etc.)

12
172/126

With earth marker

63
172/129

Ground wheel operated marker control

0
172/128

Marker adjusted upon raising implement

4
172/127

Marker shiftable on turning

6
172/132

Marker swingable about longitudinal axis to both sides

5
172/130

Multiple interconnected markers

10
172/131

Markers on laterally shiftable member

3
172/240

With ground support engageable with ground for transport only

35
172/241

Apparatus inverted to engage ground support with ground

0
172/242

Implement tiltable on longitudinal axis

0
172/244

Tool and ground support moved together relative to frame

7
172/243

Tool changeable to or replaced by ground support

2
172/395

With ground support vertically adjustable relative to frame

42
172/400

Actuator and interconnected means for adjusting wheels on different axles

17
172/405

One wheel translates another swings

0
172/401

Three or more adjustable wheels on different axles interconnected

14
172/402

With power take-off from self-adjusted wheel

0
172/406

With additional actuator changing relative position of wheels

2
172/403

With power take-off from wheel

0
172/404

Wheel adjusted by own power

0
172/422

Crank axle with angularly spaced wheel carrying arms

1
172/414

Flexible or lost motion connection to actuator

18
172/421

Plural ground supports vertically adjustable relative to each other and the frame

30
172/407

Power operated adjustment

16
172/413

Servo-motor adjusting means

82
172/408

Wheel actuates its crank axle mount

0
172/410

Intermittently rotatable member swingable with crank

0
172/411

"constant height" depth adjustment

3
172/412

Swingable arm engageable with wheel

0
172/409

Wheel lockable to crank axle arm

0
172/397

Tool land ground support moved together relative to frame

13
172/398

Linkage to tool

14
172/415

Translating motion

6
172/416

One ground support translates and another swings

1
172/417

Parallel links

28
172/418

With actuator

5
172/420

Rack and pinion or ratchet type

3
172/419

Screw jack type

2
172/396

Vertically adjustable or selectively lockable hitch

10
172/423

With actuator

17
172/425

Gearing

3
172/428

Rack and pinion or ratchet type

0
172/427

Screw jack type

13
172/426

Worm gear

0
172/429

Manually operated lever rigid with crank axle

3
172/424

Spring assisted

8
172/399

With power take-off from plural wheels

0
172/508

With guard, shield or plant diverter

27
172/509

Fender for deflected earth

26
172/512

Inverted u-shape

5
172/513

Laterally spaced fenders for inwardly thrown earth

4
172/511

Perforated or screening type

1
172/510

Rotary

14
172/517

Plant deflector

12
172/514

Weed turner or trash holddown

1
172/515

Spring biased or spring formed

2
172/516

Plural cooperating elements

0
172/430

With indicating or sighting means

81
172/27

With means for cutting or shredding plants without soil disturbance

4
172/28

Driven

10
172/29

With means for shifting surface material without soil disturbance

17
172/31

Combined with rolling or vertically acting transverse cutter

1
172/30

Driven shifting means

6
172/272

With means to facilitate mounting of implement on motor vehicle

254
172/274

Implement has ground support

69
172/275

Self-coupling by horizontal movement

58
172/273

Tool forward of rear of motor vehicle

98
172/233

With obstruction feeler for moving or releasing implement to avoid obstruction (includes dam former)

7
172/234

Relatively movable

1
172/235

Latch releasing

1
172/33

With power driven moldboard, conveyer or handler

42
172/431

With seat or attendant's station

10
172/436

Mounted on transverse member connecting plural implements

1
172/434

Movable to non-use position

3
172/435

Operator changes position or seat adjustable

9
172/432

Plural

1
172/433

Riding attachment

10
172/32

With separating after earth working

22
172/437

With tool sharpener

0
172/611

With weight

50
172/278

With wheel steering or actuator for horizontally angling wheel axis

11
172/279

Implement part interconnected with motor vehicle steering means

5
172/280

Implement wheel steered

4
172/281

Transverse tool bar laterally shiftable

0
172/286

Wheel on non-propelled device

3
172/288

Plural interconnected relatively movable wheels

5
172/289

Transversely aligned stub shafts

2
172/290

Swinging axle

1
172/291

Wheel behind tool

5
172/287

Wheel interconnected with tool

5
172/282

Wheel on trailing implement responds to turning movement

10
172/283

Interconnected with adjustable tool

13
172/285

Rear wheel turned or controlled

9
172/284

With additional angular adjustment of wheel

3
172/387

With wheel substitute (e.g., runner, etc.)

14
172/394

Disk type tool

5
172/392

Plural runner supported implements relatively movable during operation

8
172/393

Spaced parallel runners with tool mounted therebetween

22
172/391

Spike tooth implement

2
172/389

Spring tooth implement

2
172/390

Parallel pivoted tooth bars

0
172/388

With wheel

2
172/669

With wheel; or supported on wheel frame or broadly claimed implement

16
172/670

All wheels on one side of tool

0
172/673

Laterally adjustable tool

6
172/671

Mounted on single longitudinal beam in tool path

3
172/672

Wheel secured to tool

4
172/676

Tool follows wheel path

21
172/675

Vertically adjustable tool

20
172/674

With bracket to hold tool off ground

10
 
 
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