Subclasses list- 1 STEPPER TYPE
Patents: 12 Patent Applications: 1 - 2 Cam positioned
Patents: 2 Patent Applications: 0 - 3 Having plural link connector elements
Patents: 8 Patent Applications: 0 - 4 Feet attached to rim
Patents: 8 Patent Applications: 1 - 5 Spring biased
Patents: 6 Patent Applications: 0 - 6 RIGID PORTABLE TRACK
Patents: 8 Patent Applications: 0 - 7 Circular
Patents: 12 Patent Applications: 0 - 8 WITH RAIL ENGAGING MEANS
Patents: 0 Patent Applications: 0 - 9 WITH BRAKE
Patents: 8 Patent Applications: 2 - 100 WITH MEANS TO REMOVE OR EXCLUDE FOREIGN MATTER (E.G., SEAL, SCRAPER)
Patents: 55 Patent Applications: 4 - 101 With means between track links or shoes
Patents: 9 Patent Applications: 0 - 102 With peripheral seal between bushing and track link
Patents: 13 Patent Applications: 2 - 103 With end seal between bushing and track link
Patents: 74 Patent Applications: 4 - 104 And at connector pin
Patents: 37 Patent Applications: 4 - 105 With seal between connector pin and bushing
Patents: 13 Patent Applications: 3 - 106 With seal between connector pin and track link
Patents: 25 Patent Applications: 2 - 107 With deflector plate, track guide means, or scraper
Patents: 47 Patent Applications: 9 - 108 With deflector or guard mounted to track body
Patents: 13 Patent Applications: 0 - 109 With deflector plate mounted to lateral side of track
Patents: 20 Patent Applications: 1 - 110 With scraper mounted to scrape track or wheel
Patents: 32 Patent Applications: 2 - 111 With self-cleaning tread or track unit
Patents: 21 Patent Applications: 0 - 112 Including self-cleaning endless belt
Patents: 8 Patent Applications: 0 - 113 Having openings through side or base of shoe or link
Patents: 6 Patent Applications: 0 - 114 With particular shoe, lug, grouser structure, or material
Patents: 9 Patent Applications: 0 - 115 With self-cleaning sprocket or drive wheel
Patents: 34 Patent Applications: 3 - 116 TRACK GUIDE OR ALIGNMENT MECHANISM
Patents: 32 Patent Applications: 9 - 117 WITH LUBRICATION
Patents: 22 Patent Applications: 2 - 118 Including passage in connector pin
Patents: 19 Patent Applications: 2 - 119 Including passage in or for roller structure
Patents: 15 Patent Applications: 3 - 15 COMBINED OR CONVERTIBLE
Patents: 23 Patent Applications: 4 - 120 WITH FRAME CARRIED ENDLESS TRACK
Patents: 32 Patent Applications: 13 - 121 With roller antifriction means
Patents: 9 Patent Applications: 0 - 122 Track carried
Patents: 9 Patent Applications: 2 - 123 Rollers engage toothed wheel or frame
Patents: 5 Patent Applications: 0 - 19 SINGLE WHEEL TYPE
Patents: 35 Patent Applications: 0 - 20 WHEEL ON TOP OF UPPER TRACK RUN
Patents: 8 Patent Applications: 0 - 124 WITH TRACK SUPPORT INTERMEDIATE OF END WHEELS
Patents: 32 Patent Applications: 14 - 125 Including end wheel support for movement to maintain track tension
Patents: 44 Patent Applications: 8 - 126 Intermediate support includes wheel contacting upper and lower track runs
Patents: 11 Patent Applications: 3 - 127 Including elongated slide or frame support
Patents: 53 Patent Applications: 5 - 128 Combined with at least one intermediate roller
Patents: 14 Patent Applications: 2 - 129 With roller support contacting lower track run
Patents: 23 Patent Applications: 7 - 130 With frame-mounted rollers
Patents: 26 Patent Applications: 9 - 131 Adjustable or movable frame
Patents: 17 Patent Applications: 1 - 132 With roller support mounted for movement individually or in pairs
Patents: 32 Patent Applications: 5 - 133 Including individual roller mounted for movement at end of arm
Patents: 10 Patent Applications: 2 - 134 Including walking beam or pivoting arm
Patents: 12 Patent Applications: 3 - 135 With high drive arrangement
Patents: 28 Patent Applications: 5 - 136 Specific roller structure, per se
Patents: 70 Patent Applications: 15 - 137 Including structure to engage track (e.g., wear surface, cushion)
Patents: 62 Patent Applications: 5 - 138 With roller mounting means
Patents: 48 Patent Applications: 2 - 139 With intermediate upper track run support
Patents: 27 Patent Applications: 3 - 140 With endless roller chain support
Patents: 1 Patent Applications: 0 - 141 With vertically movable wheel support
Patents: 6 Patent Applications: 2 - 142 With plural wheel support
Patents: 12 Patent Applications: 6 - 143 WITH MEANS FOR TENSIONING TRACK BY MOVING AT LEAST ONE ENDWHEEL
Patents: 33 Patent Applications: 7 - 144 Condition responsive (e.g., inclination, speed, operator command)
Patents: 33 Patent Applications: 1 - 145 Having hydraulic adjusting means
Patents: 57 Patent Applications: 9 - 146 Including spring device (e.g., coil spring)
Patents: 26 Patent Applications: 3 - 147 Coil spring housed within hydraulic cylinder
Patents: 10 Patent Applications: 1 - 148 Including gas recoil
Patents: 13 Patent Applications: 3 - 149 With vent or relief valve
Patents: 14 Patent Applications: 1 - 150 Vertically movable endwheel
Patents: 7 Patent Applications: 0 - 151 Biased by spring only
Patents: 6 Patent Applications: 1 - 152 Longitudinally outwardly biased by coil spring only
Patents: 16 Patent Applications: 0 - 153 Longitudinally adjustable
Patents: 26 Patent Applications: 3 - 154 Including threaded tension adjuster
Patents: 25 Patent Applications: 0 - 155 With intermediate support member (e.g., linkage)
Patents: 15 Patent Applications: 2 - 156 Tensioner contained within idler wheel
Patents: 6 Patent Applications: 0 - 33 WITH INTERPOSED FRICTION DRIVE BELT
Patents: 6 Patent Applications: 0 - 34 INFLATABLE MEANS
Patents: 24 Patent Applications: 0 - 157 ENDLESS BELT HAVING NONMETALLIC TRACK OR TREAD
Patents: 38 Patent Applications: 7 - 158 Track formed of flexible sections
Patents: 13 Patent Applications: 4 - 159 Track formed of rigid nonmetallic links
Patents: 13 Patent Applications: 1 - 160 Lug, shoe, or grouser structure, per se
Patents: 34 Patent Applications: 2 - 161 With mounting means
Patents: 10 Patent Applications: 2 - 162 Including threaded fastening means
Patents: 15 Patent Applications: 2 - 163 With noncylindrical or hollow connector pin
Patents: 5 Patent Applications: 0 - 164 Including metal sleeve for connector pin
Patents: 7 Patent Applications: 0 - 165 Track formed of endless flexible belt
Patents: 95 Patent Applications: 33 - 166 Including plural layers of different materials
Patents: 31 Patent Applications: 4 - 167 With metallic embedded reinforcement
Patents: 61 Patent Applications: 6 - 168 Including clip for snowmobile track
Patents: 32 Patent Applications: 1 - 169 Including means for sprocket tooth engagement (e.g.,lug aperture)
Patents: 28 Patent Applications: 7 - 170 Reinforcement is endless
Patents: 37 Patent Applications: 5 - 171 Including core bar reinforcement
Patents: 32 Patent Applications: 5 - 172 With overlapping core bar sections
Patents: 8 Patent Applications: 0 - 173 Including sprocket wheel or roller guide lug or projection
Patents: 23 Patent Applications: 2 - 174 Plural lugs or projections
Patents: 18 Patent Applications: 1 - 175 Including additional reinforcement for sprocket wheel
Patents: 3 Patent Applications: 1 - 176 Portion of resilient belt overlaps core bar (e.g., roller engagement surface)
Patents: 6 Patent Applications: 1 - 177 Including core bar reinforcement
Patents: 29 Patent Applications: 11 - 178 With integral grouser
Patents: 81 Patent Applications: 16 - 179 With reinforcement in or at grouser formation
Patents: 29 Patent Applications: 3 - 180 With removable lug or grouser
Patents: 89 Patent Applications: 8 - 181 Grouser connects plural adjacent belts
Patents: 29 Patent Applications: 0 - 182 Including discrete connector to connect opposite belt ends
Patents: 7 Patent Applications: 0 - 183 With connecting means for reinforcement elements
Patents: 5 Patent Applications: 0 - 184 With friction drive structure
Patents: 18 Patent Applications: 0 - 185 TRACKS OR TREADS
Patents: 40 Patent Applications: 13 - 40 Cable connected treads
Patents: 21 Patent Applications: 1 - 41 Resilient connection between treads
Patents: 10 Patent Applications: 2 - 42 Torsion bushing
Patents: 16 Patent Applications: 0 - 43 Resilient compressible hinge
Patents: 12 Patent Applications: 1 - 44 Steerable
Patents: 13 Patent Applications: 1 - 45 Adjustable connection between treads
Patents: 5 Patent Applications: 0 - 46 With resiliently biased ground engaging portion
Patents: 32 Patent Applications: 7 - 47 With sag prevention means
Patents: 10 Patent Applications: 1 - 48 Projecting truss type
Patents: 2 Patent Applications: 0 - 49 Truss interconnected
Patents: 2 Patent Applications: 0 - 50 Track treads interconnected without separate fastening means
Patents: 5 Patent Applications: 1 - 51 With street plate
Patents: 37 Patent Applications: 2 - 52 With roller means
Patents: 12 Patent Applications: 0 - 53 One piece track tread
Patents: 26 Patent Applications: 2 - 186 Having master link
Patents: 25 Patent Applications: 4 - 187 With detachable grouser for endless chain track
Patents: 35 Patent Applications: 2 - 188 Including additional locking means to elminate stress concentration
Patents: 16 Patent Applications: 0 - 189 Including nonmetallic part or component
Patents: 45 Patent Applications: 1 - 190 Reversible
Patents: 5 Patent Applications: 0 - 191 Grouser structure, per se
Patents: 35 Patent Applications: 11 - 192 Specific material (e.g., hardness, welding, method of manufacture)
Patents: 22 Patent Applications: 0 - 193 With guide means for interfitting with sprocket wheel or roller
Patents: 53 Patent Applications: 8 - 194 Track wheel wear protection (e.g., track element protection)
Patents: 25 Patent Applications: 9 - 195 Sprocket and track engagement
Patents: 73 Patent Applications: 9 - 196 Track formed of rigid links
Patents: 21 Patent Applications: 3 - 197 Having nonmetallic part or component (e.g., at area of engagement)
Patents: 32 Patent Applications: 0 - 198 Link or shoe structure, per se
Patents: 22 Patent Applications: 6 - 199 Sprocket wheel structure, per se
Patents: 97 Patent Applications: 10 - 200 Track formed of rigid links
Patents: 12 Patent Applications: 2 - 201 Link or shoe structure, per se
Patents: 36 Patent Applications: 6 - 202 Separate transverse connector pin between treads
Patents: 75 Patent Applications: 16 - 203 Including nonmetallic part or component
Patents: 14 Patent Applications: 4 - 204 Including additional locking member for retaining link connectors (e.g., pin connectors)
Patents: 39 Patent Applications: 0 - 59 Including noncylindrical or hollow connector pin
Patents: 24 Patent Applications: 0 - 60 MISCELLANEOUS
Patents: 42 Patent Applications: 1 - 900 MASTER LINK
Patents: 0 Patent Applications: 0
| DefinitionThis 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. Apparatus of the class is characterized by the provision of means which facilitate the movement of the vehicle over rough terrain or increases the traction of the vehicle with respect to the ground. Devices characteristic of the class are usually known as "Steppers" or "Endless Track Apparatus". (1) Note. The scope of this class is limited to wheel substitutes, per se, and subcombination portions thereof and does not include the combination of land vehicles with wheel substitutes, except where the claimed combination includes only a nominal recitation of the land vehicle. For land vehicles provided with wheel substitutes see the appropriate vehicle classes as indicated in the Search Notes below. Wherever a drawing is associated with a definition, it is merely used to illustrate the basic concept encompassed by the definition of that subclass and should not be construed as limiting the scope of the subject matter covered by that subclass. |
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