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Class Information
Number: 305
Name: Wheel substitutes for land vehicles >
Description: This class relates to apparatus intended to be substituted for the wheel or runner of a land vehicle. The apparatus of this class bears the same general relationship to a land vehicle as a wheel or runner and serves generally the same function but is so contructed that it can be called neither a wheel nor a runner. The apparatus of the class, however, may include wheels or runners as subcombination portions thereof.










Class Number Class Name No. of Patents
305/15

Combined or convertible

22
305/157

Endless belt having nonmetallic track or tread

35
305/165

Track formed of endless flexible belt

105
305/181

Grouser connects plural adjacent belts

26
305/182

Including discrete connector to connect opposite belt ends

6
305/166

Including plural layers of different materials

26
305/178

With integral grouser

80
305/179

With reinforcement in or at grouser formation

29
305/167

With metallic embedded reinforcement

68
305/168

Including clip for snowmobile track

26
305/177

Including core bar reinforcement

35
305/169

Including means for sprocket tooth engagement (e.g.,lug aperture)

29
305/170

Reinforcement is endless

38
305/171

Including core bar reinforcement

34
305/173

Including sprocket wheel or roller guide lug or projection

21
305/174

Plural lugs or projections

19
305/175

Including additional reinforcement for sprocket wheel

4
305/172

With overlapping core bar sections

7
305/176

Portion of resilient belt overlaps core bar (e.g., roller engagement surface)

9
305/180

With removable lug or grouser

82
305/158

Track formed of flexible sections

13
305/159

Track formed of rigid nonmetallic links

10
305/164

Including metal sleeve for connector pin

7
305/160

Lug, shoe, or grouser structure, per se

31
305/161

With mounting means

9
305/162

Including threaded fastening means

16
305/163

With noncylindrical or hollow connector pin

6
305/183

With connecting means for reinforcement elements

5
305/184

With friction drive structure

16
305/34

Inflatable means

24
305/900

Master link

0
305/60

Miscellaneous

44
305/6

Rigid portable track

9
305/7

Circular

12
305/19

Single wheel type

31
305/1

Stepper type

11
305/2

Cam positioned

1
305/4

Feet attached to rim

8
305/5

Spring biased

6
305/3

Having plural link connector elements

5
305/116

Track guide or alignment mechanism

30
305/185

Tracks or treads

38
305/45

Adjustable connection between treads

4
305/40

Cable connected treads

21
305/186

Having master link

26
305/53

One piece track tread

21
305/41

Resilient connection between treads

12
305/43

Resilient compressible hinge

10
305/42

Torsion bushing

13
305/202

Separate transverse connector pin between treads

73
305/204

Including additional locking member for retaining link connectors (e.g., pin connectors)

33
305/59

Including noncylindrical or hollow connector pin

24
305/203

Including nonmetallic part or component

18
305/44

Steerable

16
305/50

Track treads interconnected without separate fastening means

5
305/187

With detachable grouser for endless chain track

35
305/191

Grouser structure, per se

36
305/192

Specific material (e.g., hardness, welding, method of manufacture)

24
305/188

Including additional locking means to elminate stress concentration

17
305/189

Including nonmetallic part or component

49
305/190

Reversible

6
305/193

With guide means for interfitting with sprocket wheel or roller

54
305/195

Sprocket and track engagement

79
305/199

Sprocket wheel structure, per se

99
305/196

Track formed of rigid links

22
305/197

Having nonmetallic part or component (e.g., at area of engagement)

29
305/198

Link or shoe structure, per se

28
305/200

Track formed of rigid links

12
305/201

Link or shoe structure, per se

44
305/194

Track wheel wear protection (e.g., track element protection)

27
305/46

With resiliently biased ground engaging portion

31
305/52

With roller means

14
305/47

With sag prevention means

11
305/48

Projecting truss type

2
305/49

Truss interconnected

2
305/51

With street plate

37
305/20

Wheel on top of upper track run

7
305/9

With brake

5
305/120

With frame carried endless track

39
305/121

With roller antifriction means

10
305/123

Rollers engage toothed wheel or frame

5
305/122

Track carried

9
305/33

With interposed friction drive belt

6
305/117

With lubrication

22
305/118

Including passage in connector pin

19
305/119

Including passage in or for roller structure

17
305/143

With means for tensioning track by moving at least one endwheel

39
305/151

Biased by spring only

5
305/152

Longitudinally outwardly biased by coil spring only

16
305/144

Condition responsive (e.g., inclination, speed, operator command)

30
305/145

Having hydraulic adjusting means

54
305/148

Including gas recoil

11
305/146

Including spring device (e.g., coil spring)

23
305/147

Coil spring housed within hydraulic cylinder

9
305/149

With vent or relief valve

17
305/153

Longitudinally adjustable

26
305/154

Including threaded tension adjuster

25
305/156

Tensioner contained within idler wheel

7
305/150

Vertically movable endwheel

8
305/155

With intermediate support member (e.g., linkage)

16
305/100

With means to remove or exclude foreign matter (e.g., seal, scraper)

57
305/107

With deflector plate, track guide means, or scraper

46
305/108

With deflector or guard mounted to track body

9
305/109

With deflector plate mounted to lateral side of track

17
305/110

With scraper mounted to scrape track or wheel

31
305/103

With end seal between bushing and track link

70
305/104

And at connector pin

42
305/101

With means between track links or shoes

9
305/102

With peripheral seal between bushing and track link

11
305/105

With seal between connector pin and bushing

14
305/106

With seal between connector pin and track link

28
305/115

With self-cleaning sprocket or drive wheel

32
305/111

With self-cleaning tread or track unit

21
305/113

Having openings through side or base of shoe or link

5
305/112

Including self-cleaning endless belt

2
305/114

With particular shoe, lug, grouser structure, or material

9
305/8

With rail engaging means

0
305/124

With track support intermediate of end wheels

37
305/127

Including elongated slide or frame support

57
305/128

Combined with at least one intermediate roller

20
305/125

Including end wheel support for movement to maintain track tension

43
305/126

Intermediate support includes wheel contacting upper and lower track runs

12
305/129

With roller support contacting lower track run

27
305/136

Specific roller structure, per se

66
305/137

Including structure to engage track (e.g., wear surface, cushion)

62
305/140

With endless roller chain support

0
305/130

With frame-mounted rollers

30
305/131

Adjustable or movable frame

25
305/135

With high drive arrangement

31
305/139

With intermediate upper track run support

29
305/142

With plural wheel support

18
305/138

With roller mounting means

51
305/132

With roller support mounted for movement individually or in pairs

39
305/133

Including individual roller mounted for movement at end of arm

12
305/134

Including walking beam or pivoting arm

17
305/141

With vertically movable wheel support

13
 
 
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