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Class Information
Number: 277
Name: Seal for a joint or juncture >
Description: This is the generic class for a sealing means or a process of using a seal to act at a joint or juncture of adjacent parts to oppose passage of a fluid. The sealing means or process: (1) closes a space formed between or (2) deflects the fluid away from the joint or juncture by using the fluid, another fluid, or an article.










Class Number Class Name No. of Patents
277/914

Backup seal for failure of primary seal

57
277/922

Bonding or joining for manufacture of seal

118
277/923

Shrink-fitting for the assembly of seal

12
277/921

Closure or weather strip seal

219
277/924

Deformation, material removal, or molding for manufacture of seal

176
277/910

O-ring seal

430
277/907

Passageway in rod or shaft

56
277/300

Process of dynamic sealing

34
277/301

Close proximity seal (e.g., contactless, fluent, etc.)

28
277/305

Floating ring or bushing

10
277/304

Formed by pressurized sealing fluid introduced to form barrier

27
277/303

Labyrinth

64
277/302

Magnetic

23
277/308

Contained or compressed by gland member in packing box

27
277/311

Flexible ring

27
277/309

Peripheral radially sealing flexible projection (e.g., lip, piston cup seal, etc.)

64
277/310

Piston ring for internal combustion engine

5
277/306

Relatively rotatable radially extending sealing face member (e.g., face, mechanical, etc.)

56
277/307

Formed by flexible projection

16
277/312

Process of static sealing

114
277/313

Between parts of internal combustion engine

42
277/316

Forming in place (i.e., in situ)

122
277/314

Pipe, conduit, or cable

173
277/315

Using flexible sleeve, boot, or diaphragm

30
277/590

Seal between fixed parts or static contact against relatively movable parts

111
277/591

Contact seal between parts of internal combustion engine

280
277/600

Covering member or eyelet for opening

56
277/601

Covering fire ring or sealing formation

84
277/593

Having compression limiting feature

235
277/599

Having flow restrictor

18
277/598

Having installation, removal, assembly, disassembly, or repair feature

217
277/597

Heat dissipating, cooling, or insulating feature

39
277/592

Particular coating or layer of sealing material

244
277/594

Particular dimensions or configuration of sealing bead or formation

176
277/596

Elastomeric

120
277/595

Metallic

280
277/602

Contact seal for a pipe, conduit, or cable

128
277/604

Allows rolling or folding

55
277/606

And wall

298
277/616

Having associated mounting or retaining feature

374
277/619

Axially related backing ring

78
277/624

And seal secure together

25
277/620

Clamping gland

38
277/621

Particular axially acting feature

38
277/622

Threaded gland

51
277/623

Particular gland shape

18
277/618

Axially related or embedded coil spring

22
277/617

Molded or cast into the pipe, conduit, or cable

64
277/625

Particular and located on the pipe, conduit, or cable

117
277/615

Having axially spaced projections

157
277/605

Hollow, fluid-filled, or inflatable

123
277/608

Inserted between end-to-end pipe, conduit, or cable joint

235
277/614

Each end has recess for the seal

118
277/611

Extrusion preventing (i.e., antiextrusion) or compression limiting feature

62
277/609

Having installation, removal, assembly, disassembly, or repair feature

196
277/612

Having plural projections

81
277/613

Hose coupling

15
277/610

Spirally wound structure

41
277/627

Particular seal material or construction

367
277/626

Particular seal shape

519
277/603

Plural interfitting seal members for installation on the individual joined pipes, conduits, or cables

97
277/607

Sleeve type

168
277/628

Contact seal for other than internal combustion engine, or pipe, conduit, or cable

207
277/634

Flexible sleeve, boot, or diaphragm

241
277/635

Dome-, cup-, or bell-shaped, or for ball joint

133
277/636

Tubular or frustoconical shape having corrugated wall portion

287
277/630

Having installation, removal, assembly, disassembly, or repair feature

321
277/637

Having particular associated mounting or retaining feature

510
277/640

Anchoring feature extending through seal

96
277/639

Compression limiting feature

48
277/638

Extrusion preventing (i.e., antiextrusion) structure

57
277/641

Groove structure on the seal or part

297
277/642

Channel-shaped

128
277/643

Single seat formed by plural recesses

86
277/629

Magnetic

30
277/644

Particular cross-sectional seal profile

550
277/647

C-, u-, or v-shaped

225
277/645

Hollow or filled chamber

184
277/646

Inflatable

137
277/648

Plural projections along sealing surface

143
277/649

Plural projections along opposite sealing surfaces

103
277/650

Particular sealing material or construction

503
277/652

Distinct sheath or covering

181
277/653

Metal

66
277/651

Embedded reinforcement

177
277/654

Plural layers

208
277/632

Segmented periphery

41
277/633

Spirally wound structure

25
277/631

Split including end joining structure

42
277/345

Seal between relatively movable parts (i.e., dynamic seal)

256
277/355

Brush seal

343
277/433

Centrifugal force affects change in displacement, shape, or contact

49
277/500

Circumferential contact seal for other than piston

301
277/503

Accommodates gyratory or oscillatory motion

40
277/506

Arcuate bearing surface

9
277/507

Partially spherical

41
277/508

Axially spring biased

6
277/509

Coaxial spring

6
277/504

Flexible connection between seal and another part

43
277/505

Oscillates perpendicularly to axis of motion

29
277/501

And magnetic bias

9
277/510

Contained or compressed by gland member in packing box

70
277/542

Consisting of loose-fill type packing

4
277/512

Fluid introducer or director

56
277/517

Between packing boxes

9
277/514

Drain, pressure relief, or vent

29
277/513

External device or system

26
277/515

Passage through axial facing surface

7
277/516

Spacer between seals (e.g., lantern ring, etc.)

62
277/511

Having installation, removal, assembly, disassembly, or repair feature

93
277/529

Having particular cross-sectional seal profile

63
277/530

C-, m-, u-, v-, x-, or z-shaped

112
277/531

Wedging surface

24
277/532

Made of elastomer or plastic

24
277/533

Segmented

7
277/528

Helically coiled packing

12
277/520

Particular gland feature

67
277/526

Externally threaded

17
277/524

Eye or t-type bolt

6
277/525

Internally threaded

5
277/521

Segmented

7
277/522

Spring bias

35
277/523

Disposed about external bolt or stud

32
277/534

Particular seal material or construction

28
277/535

Composite

18
277/538

Distinct sheath or covering

23
277/536

Fibrous component

26
277/537

Braided, woven, or twisted

45
277/540

Elastomer or plastic

71
277/539

Graphite

63
277/541

Metal

18
277/518

Plural distinct packing boxes

29
277/519

Segmented packing boxes

6
277/527

Wear sleeve

14
277/585

Elongated sleeve or bushing

71
277/584

Extrusion preventing (i.e., antiextrusion) structure

151
277/502

For valve stem in internal combustion engine

64
277/578

Having circumferentially adjustable biasing element

24
277/579

Having floating ring or bushing (i.e., circumferentially contacting)

41
277/583

Inflatable seal or seal biased by inflatable member

52
277/582

Made of elastomer or plastic

42
277/580

Radially translatable in groove

34
277/581

And biased

37
277/549

Peripheral radially sealing flexible projection (e.g., lip seal, etc.)

308
277/553

Bias feature other than nominal garter spring

118
277/557

Axially extending helical or spiral spring

10
277/554

Embedded spring

30
277/556

Material other than metal

55
277/558

Particular fluid pressure responsive bias

89
277/555

Radially extending finger spring

27
277/560

Dimensional aspect of the flexible projection (e.g., angle, length, radius, thickness, etc.)

221
277/551

Having installation, removal, assembly, disassembly, or repair feature

308
277/552

Having pressure relief or venting feature

119
277/559

Hydrodynamic sealing feature

213
277/561

Intermediate flexible bending portion

58
277/569

Lining or insert

84
277/570

Made entirely of fluorocarbon material

96
277/550

Made of metal or is a scraper

79
277/572

Particular mounting, frame, casing, or reinforcement feature

302
277/573

Peripheral mounting static seal

78
277/574

Protrusion or bead cross-sectional profile

91
277/576

Secured by clamping

41
277/577

By distinct members

81
277/575

Secured by molding or bonding

105
277/562

Plural peripheral radially sealing flexible projections

277
277/564

Having insert between the flexible projections

31
277/563

Having interposed fluid receiver or director

115
277/565

On radial facing side of single seal

272
277/566

Both radial sides of the single seal (e.g., x-shaped, y-shaped, etc.)

74
277/568

Including an excluder or wiper

70
277/567

Radially facing u or v cross-sectional profile

34
277/571

Wear sleeve

115
277/589

Radially backed by resilient or elastomeric member

147
277/587

Seated in groove having oblique wall

51
277/586

Seated in groove having stepped walls

24
277/543

Segmented ring

59
277/544

Having pressure balancing or radial bias reduction feature

18
277/546

Particular segment end structure

23
277/547

Interfitting projection and recess

20
277/548

Plural complementary interfitting rings

13
277/545

Radial biasing spring element other than nominal garter spring

38
277/409

Close proximity seal (e.g., contactless, fluent, etc.)

103
277/431

Formed by pressurized sealing fluid introduced to form barrier

184
277/432

External device or system

85
277/411

Gap or clearance

202
277/422

Floating ring or bushing

111
277/412

Labyrinth

307
277/414

Formed by cellular pockets (e.g., honeycomb, etc.)

53
277/417

Formed by multiple washers

26
277/418

Formed by plural grooves or projections on opposing surfaces

66
277/419

Interfitting or overlapping

122
277/420

And axially oriented

84
277/413

Having adjustable member

81
277/421

Having installation, removal, assembly, disassembly, or repair feature

103
277/415

Having wear resistant, abradable, or ablative member

94
277/416

Segmented

76
277/423

Impeller (e.g., slinger, etc.)

117
277/425

And static sealing means affected by rotational movement

23
277/426

Actuated by counterweight

2
277/429

Fluid collector or receiver

49
277/427

Forms centrifugal liquid barrier

30
277/428

Having cup or chamber inside the impeller or another rotating member

13
277/430

Helical groove or thread on axially extending surface

89
277/424

Rib or groove on radial extending surface

63
277/410

Magnetic

192
277/346

Diverse and distinct dynamic seals

60
277/353

And circumferential peripheral radially sealing flexible projection (e.g., lip seal, etc.)

173
277/347

Close proximity seal (e.g., contactless, fluent, etc.)

92
277/350

And circumferential contact seal

65
277/351

Peripheral radially sealing flexible projection (e.g., lip seal, etc.)

103
277/348

And relatively rotatable radially extending contacting sealing members (e.g., face, mechanical, etc.)

103
277/349

And circumferential peripheral radially sealing flexible projection (e.g., lip seal, etc.)

61
277/352

Relatively rotatable radially extending contacting sealing members (e.g., face, mechanical, etc.)

55
277/356

For journal box (e.g., railway car journal, etc.)

5
277/357

For rotary piston

58
277/354

Helically threaded part

28
277/434

Piston ring or piston ring expander or seat therefor

141
277/447

Floating piston ring

23
277/448

Material other than metal

25
277/435

Having installation, removal assembly, disassembly, or repair feature

54
277/467

Particular piston ring expander

70
277/470

Adjustable loading feature

10
277/472

Annular expander nested in annular groove of the piston ring

25
277/474

And contacting surfaces therebetween are complementary

10
277/475

Having more than one pair of such surfaces

9
277/473

Between piston rings

9
277/476

Inclined or beveled groove contacting expander having dissimilar contour

8
277/486

Bias feature adjoining opposed ends of split or segmented piston ring

6
277/469

Bias limiting feature

6
277/482

Circumferentially spaced separately seated radially acting bias feature

6
277/483

Disposed in socket or about pin

5
277/488

For axially adjacent piston rings

20
277/484

Radially extending tongue formed from expander

6
277/487

Segmented

6
277/468

Separate and other than metal

48
277/477

Slotted or undulating circular band including inclined or axially facing seat for the piston ring

10
277/478

Axially spaced axially facing seats

9
277/480

Circular band having axially displaced undulations

10
277/479

Circular band having radially displaced undulations

19
277/481

U-shaped circular band radially directed either inwardly or outwardly throughout its circumference

12
277/471

Thermal expansion feature

6
277/485

Undulating periphery providing axially extending face against inner perimeter of the piston ring

7
277/449

Particular piston seat

39
277/455

Arcuate wall

10
277/456

Coating, treatment, or wall insert

21
277/457

Having passageway for fluid return, pressure relief, or venting

28
277/450

Helical form

2
277/452

Oblique wall

30
277/453

More than one oblique wall

32
277/454

Having parallel walls

3
277/451

Stepped walls

34
277/466

Piston ring displays twisting or torsion

26
277/436

Piston ring having peripheral radially sealing flexible projection (e.g., piston cup, etc.)

108
277/438

Having c, u, or v cross-sectional profile

37
277/439

Axially facing cup

48
277/437

Having particular mounting, retaining, or supporting feature

84
277/458

Piston ring having single piece noncircular or multiturn (e.g., helical, spiral, oblong, elliptical, polygonal, etc.) shape

9
277/459

Piston ring including exposed port, slot, pocket, groove, channel, recess, or bevel

27
277/460

Circumferential groove, channel, recess, or bevel

45
277/461

Axially spaced

11
277/462

Ports

7
277/463

Ports

16
277/464

Circumferentially spaced ports

12
277/465

Circumferentially spaced slots, pockets, grooves, channels, recesses, or bevels

26
277/440

Piston ring surface of dissimilar material or hardness

37
277/441

Insert

19
277/442

Surface coating, plating, or impregnation

63
277/444

Chromium

49
277/443

Nitrided

49
277/445

Rotation limiting feature (i.e., antirotation)

14
277/446

Between rings

20
277/489

Sectional piston ring structure

16
277/491

C, l, t, u, v, or z cross-sectional profile

13
277/492

Three or more sections

3
277/490

Eccentric or variable thickness component ring

11
277/493

Segmented piston ring

17
277/494

Separate bridging piece for gap in piston ring

5
277/495

Secured to end

1
277/496

Split single piece piston ring having opposed asymmetrical mirrored ends

26
277/497

Arcuate or beveled mating surfaces

14
277/498

Split single piece piston ring having other than opposed asymmetrical mirrored ends

11
277/499

Arcuate or beveled mating surfaces

17
277/358

Relatively rotatable radially extending sealing face member (e.g., face, mechanical, etc.)

110
277/398

Eccentric, gyratory, or oscillatory motion

86
277/370

Installation, removal, assembly, disassembly, or repair feature

196
277/371

Unitized seal assembly (e.g., cartridge, etc.)

89
277/372

Having rotation prevention (i.e., antirotation) feature for the sealing face member

64
277/373

Lug or rib

38
277/375

Mounted in housing or casing

70
277/376

Snap fit into groove

13
277/374

Retains opposed sealing face members

57
277/408

Introduction, circulation, or removal of fluid

293
277/404

Made of particular material

76
277/405

Ceramic

47
277/407

Elastomeric or plastic

140
277/406

Metal

51
277/361

Multiple sealing faces (e.g., double seals, etc.)

122
277/364

Concentric and radially spaced

60
277/362

Floating intermediate sealing face member

51
277/363

Including an outwardly axial biasing member

12
277/368

Housing mounted sealing face members biased axially away from each other

34
277/369

Housing mounted sealing face members biased axially towards each other

74
277/366

Shaft mounted sealing face members biased axially away from each other

55
277/367

Shaft mounted sealing face members biased axially towards each other

47
277/365

Three or more

50
277/377

Particular axial biasing feature

100
277/387

Fluid pressure

132
277/389

And bellows or diaphragm

40
277/388

Creates counter pressure

48
277/378

Magnetic

19
277/379

Particular spring feature

94
277/385

Arrangement or location

42
277/386

Radially biasing member creates axial bias

15
277/383

Imbedded in another material

18
277/380

Made of elastomeric material

73
277/381

Frustoconical shape

28
277/382

O-ring shape

64
277/384

Washerlike shape

69
277/399

Particular sealing face member configuration

334
277/403

Angled or tapered sealing face

77
277/402

Flexible projection (e.g., lip seal, etc.)

377
277/401

Fluid passage to the sealing face

99
277/400

Hydrodynamic feature

183
277/390

Particular secondary mounting seal or driving connection

184
277/396

Axially compressed packing

28
277/391

Flexible sleeve, boot, or diaphragm

118
277/392

Between sealing face member and shaft or part relating to shaft

69
277/393

Particular connecting feature to sealing face member

39
277/397

Frictionally engaged or interfitting projection and recess

97
277/394

Peripheral radially sealing flexible projection (e.g., lip seal, etc.)

59
277/395

U- or v-shaped cross-sectional profile

28
277/359

Temperature responsive feature

26
277/360

Accommodates or prevents thermal distortion

23
277/918

Seal combined with filter or fluid separator

100
277/317

Seal combined with indicator, sampler, or inspection feature

92
277/320

Fluid leakage

99
277/318

Fluid pressure

46
277/319

Fluid temperature

18
277/321

Wear, proper seating, or presence

59
277/911

Seal combined with nominal motion transmitting device

22
277/912

Spline connection

31
277/929

Seal feature where change in operation or condition induces additional leakage control

47
277/906

Seal for article of indefinite length (e.g., strip, sheet, etc.)

79
277/913

Seal for fluid pressure below atmospheric (e.g., vacuum, etc.)

96
277/903

Seal for rotating kiln or drum

62
277/902

Seal for sterling engine

40
277/908

Seal for use in rotating and reciprocating arrangement

28
277/322

Seal for well apparatus

120
277/335

Axially facing packing cup

24
277/336

For below ground apparatus

171
277/337

Longitudinally actuated packer

37
277/338

Packing sleeve

29
277/339

Expanded by wedging member

40
277/340

Particular wall structure

32
277/341

Reinforcing feature

20
277/342

Plural stacked rings

57
277/324

For overpressure control device (e.g., seal for a blowout preventer, etc.)

33
277/327

Axially compressed ring

33
277/326

Rotatable

31
277/325

Segmented radially actuated (e.g., ram type, etc.)

72
277/331

Inflatable packer

34
277/333

And inflating medium control

46
277/332

Deforms radially inward

11
277/334

Particular wall structure

52
277/323

Installation, removal, assembly, disassembly, or repair feature

33
277/328

Longitudinally actuated packer for above ground apparatus

49
277/329

Contained or compressed by gland member in packing box

54
277/330

For line or cable

19
277/343

Seal (e.g., wiper, oil saver, stripper, etc.) accommodates irregular size of inner part

39
277/344

Segmented radially actuated packer (e.g., oil saver, gas saver, etc.) for above ground apparatus

4
277/915

Seal including compression set feature

12
277/919

Seal including electrical feature

96
277/920

Seal including electromagnetic shielding feature

115
277/927

Seal including fluid pressure differential feature

87
277/926

Seal including fluid pressure equalizing or balancing feature

75
277/917

Seal including frangible feature

64
277/930

Seal including heating or cooling feature

208
277/928

Seal including pressure relief or vent feature

163
277/931

Seal including temperature responsive feature

94
277/932

Bi-metallic

8
277/933

Chemical reaction or physical change of state

52
277/916

Seal including vibration dampening feature

79
277/935

Seal made of a particular material

35
277/943

Ceramic or glass

50
277/936

Composite

112
277/938

Carbon or graphite particle or filament

82
277/937

Glass particles or filament

52
277/939

Containing metal

41
277/940

Alloy

55
277/941

Aluminum or copper

45
277/942

Silver or gold

16
277/944

Elastomer or plastic

211
277/945

Containing fluorine

45
277/946

Ptfe "teflon"

141
277/934

Seal swells when wet

32
277/909

Similar sealing structures for mounting on piston and about rod

23
277/925

Snap fit feature for mounting or assembly of seal

51
277/905

T-shaped or i-shaped ring member including seal on a side

20
277/904

Viscous seal

41
 
 
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