US Patent Class 305
WHEEL SUBSTITUTES FOR LAND VEHICLES



Electronic
File
Wrappers

Electronic
Patent
Documents

Paper
Patent
Documents

Current as of: June, 1999
Click for Main Headings
Click DF for Definitions
Click for All Classes

Internet Version by PATENTEC © 1999       Terms of Use



Products
and
Services

  DF  CLASS NOTES
1  DF  STEPPER TYPE
2  DF  .~ Cam positioned
3  DF  .~ Having plural link connector elements
4  DF  .~ Feet attached to rim
5  DF  .~.~ Spring biased
6  DF  RIGID PORTABLE TRACK
7  DF  .~ Circular
8  DF  WITH RAIL ENGAGING MEANS
9  DF  WITH BRAKE
100  DF  WITH MEANS TO REMOVE OR EXCLUDE FOREIGN MATTER (E.G., SEAL, SCRAPER)
101  DF  .~ With means between track links or shoes
102  DF  .~ With peripheral seal between bushing and track link
103  DF  .~ With end seal between bushing and track link
104  DF  .~.~ And at connector pin
105  DF  .~ With seal between connector pin and bushing
106  DF  .~ With seal between connector pin and track link
107  DF  .~ With deflector plate, track guide means, or scraper
108  DF  .~.~ With deflector or guard mounted to track body
109  DF  .~.~ With deflector plate mounted to lateral side of track
110  DF  .~.~ With scraper mounted to scrape track or wheel
111  DF  .~ With self-cleaning tread or track unit
112  DF  .~.~ Including self-cleaning endless belt
113  DF  .~.~ Having openings through side or base of shoe or link
114  DF  .~.~ With particular shoe, lug, grouser structure, or material
115  DF  .~ With self-cleaning sprocket or drive wheel
116  DF  TRACK GUIDE OR ALIGNMENT MECHANISM
117  DF  WITH LUBRICATION
118  DF  .~ Including passage in connector pin
119  DF  .~ Including passage in or for roller structure
15  DF  COMBINED OR CONVERTIBLE
120  DF  WITH FRAME CARRIED ENDLESS TRACK
121  DF  .~ With roller antifriction means
122  DF  .~.~ Track carried
123  DF  .~.~ Rollers engage toothed wheel or frame
19  DF  SINGLE WHEEL TYPE
20  DF  WHEEL ON TOP OF UPPER TRACK RUN
124  DF  WITH TRACK SUPPORT INTERMEDIATE OF END WHEELS
125  DF  .~ Including end wheel support for movement to maintain track tension
126  DF  .~ Intermediate support includes wheel contacting upper and lower track runs
127  DF  .~ Including elongated slide or frame support
128  DF  .~.~ Combined with at least one intermediate roller
129  DF  .~ With roller support contacting lower track run
130  DF  .~.~ With frame-mounted rollers
131  DF  .~.~.~ Adjustable or movable frame
132  DF  .~.~ With roller support mounted for movement individually or in pairs
133  DF  .~.~.~ Including individual roller mounted for movement at end of arm
134  DF  .~.~.~ Including walking beam or pivoting arm
135  DF  .~.~ With high drive arrangement
136  DF  .~.~ Specific roller structure, per se
137  DF  .~.~.~ Including structure to engage track (e.g., wear surface, cushion)
138  DF  .~.~ With roller mounting means
139  DF  .~.~ With intermediate upper track run support
140  DF  .~.~ With endless roller chain support
141  DF  .~.~ With vertically movable wheel support
142  DF  .~.~ With plural wheel support
143  DF  WITH MEANS FOR TENSIONING TRACK BY MOVING AT LEAST ONE ENDWHEEL
144  DF  .~ Condition responsive (e.g., inclination, speed, operator command)
145  DF  .~ Having hydraulic adjusting means
146  DF  .~.~ Including spring device (e.g., coil spring)
147  DF  .~.~.~ Coil spring housed within hydraulic cylinder
148  DF  .~.~ Including gas recoil
149  DF  .~.~ With vent or relief valve
150  DF  .~ Vertically movable endwheel
151  DF  .~ Biased by spring only
152  DF  .~.~ Longitudinally outwardly biased by coil spring only
153  DF  .~ Longitudinally adjustable
154  DF  .~.~ Including threaded tension adjuster
155  DF  .~ With intermediate support member (e.g., linkage)
156  DF  .~ Tensioner contained within idler wheel
33  DF  WITH INTERPOSED FRICTION DRIVE BELT
34  DF  INFLATABLE MEANS
157  DF  ENDLESS BELT HAVING NONMETALLIC TRACK OR TREAD
158  DF  .~ Track formed of flexible sections
159  DF  .~ Track formed of rigid nonmetallic links
160  DF  .~.~ Lug, shoe, or grouser structure, per se
161  DF  .~.~.~ With mounting means
162  DF  .~.~.~.~ Including threaded fastening means
163  DF  .~.~ With noncylindrical or hollow connector pin
164  DF  .~.~ Including metal sleeve for connector pin
165  DF  .~ Track formed of endless flexible belt
166  DF  .~.~ Including plural layers of different materials
167  DF  .~.~ With metallic embedded reinforcement
168  DF  .~.~.~ Including clip for snowmobile track
169  DF  .~.~.~ Including means for sprocket tooth engagement (e.g.,lug aperture)
170  DF  .~.~.~ Reinforcement is endless
171  DF  .~.~.~.~ Including core bar reinforcement
172  DF  .~.~.~.~.~ With overlapping core bar sections
173  DF  .~.~.~.~.~ Including sprocket wheel or roller guide lug or projection
174  DF  .~.~.~.~.~.~ Plural lugs or projections
175  DF  .~.~.~.~.~.~.~ Including additional reinforcement for sprocket wheel
176  DF  .~.~.~.~ Portion of resilient belt overlaps core bar (e.g., roller engagement surface)
177  DF  .~.~.~ Including core bar reinforcement
178  DF  .~.~ With integral grouser
179  DF  .~.~.~ With reinforcement in or at grouser formation
180  DF  .~.~ With removable lug or grouser
181  DF  .~.~ Grouser connects plural adjacent belts
182  DF  .~.~ Including discrete connector to connect opposite belt ends
183  DF  .~ With connecting means for reinforcement elements
184  DF  .~ With friction drive structure
185  DF  TRACKS OR TREADS
40  DF  .~ Cable connected treads
41  DF  .~ Resilient connection between treads
42  DF  .~.~ Torsion bushing
43  DF  .~.~ Resilient compressible hinge
44  DF  .~ Steerable
45  DF  .~ Adjustable connection between treads
46  DF  .~ With resiliently biased ground engaging portion
47  DF  .~ With sag prevention means
48  DF  .~.~ Projecting truss type
49  DF  .~.~.~ Truss interconnected
50  DF  .~ Track treads interconnected without separate fastening means
51  DF  .~ With street plate
52  DF  .~ With roller means
53  DF  .~ One piece track tread
186  DF  .~ Having master link
187  DF  .~ With detachable grouser for endless chain track
188  DF  .~.~ Including additional locking means to elminate stress concentration
189  DF  .~.~ Including nonmetallic part or component
190  DF  .~.~ Reversible
191  DF  .~.~ Grouser structure, per se
192  DF  .~.~.~ Specific material (e.g., hardness, welding, method of manufacture)
193  DF  .~ With guide means for interfitting with sprocket wheel or roller
194  DF  .~.~ Track wheel wear protection (e.g., track element protection)
195  DF  .~.~ Sprocket and track engagement
196  DF  .~.~.~ Track formed of rigid links
197  DF  .~.~.~.~ Having nonmetallic part or component (e.g., at area of engagement)
198  DF  .~.~.~.~ Link or shoe structure, per se
199  DF  .~.~.~ Sprocket wheel structure, per se
200  DF  .~.~ Track formed of rigid links
201  DF  .~.~.~ Link or shoe structure, per se
202  DF  .~ Separate transverse connector pin between treads
203  DF  .~.~ Including nonmetallic part or component
204  DF  .~.~ Including additional locking member for retaining link connectors (e.g., pin connectors)
59  DF  .~.~ Including noncylindrical or hollow connector pin
60  DF  MISCELLANEOUS
******************************
CROSS-REFERENCE ART COLLECTION
******************************
900  DF  MASTER LINK