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363-131 121-55A 14-.5
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Class Number: 305
Class Title: WHEEL SUBSTITUTES FOR LAND VEHICLES
Subclass Subclass
Number Title
1 STEPPER TYPE
2 .Cam positioned
3 .Having plural link connector elements
4 .Feet attached to rim
5 ..Spring biased
6 RIGID PORTABLE TRACK
7 .Circular
8 WITH RAIL ENGAGING MEANS
9 WITH BRAKE
10 WITH HYDRAULIC ADJUSTING MEANS
11 WITH MEANS TO EXCLUDE OR REMOVE FOREIGN MATTER
12 .Deflector plate or scraper
13 .Self-cleaning tread unit structure
14 WITH LUBRICATING MEANS
15 COMBINED OR CONVERTIBLE
16 FRAME CARRIED TRACK
17 .With roller antifriction means
18 ..Track carried
19 SINGLE WHEEL TYPE
20 WHEEL ON TOP OF UPPER TRACK RUN
21 END WHEELS WITH INTERMEDIATE SUPPORT
22 .Support connected to end wheel for movement therewith to
maintain track tension
23 .Intermediate support comprises wheel contacting upper and lower
track runs
24 .Intermediate support engages lower track run
25 ..With intermediate upper track run support means
26 ..Support comprises endless roller chain
27 ..Support comprises vertically movable wheels
28 ..Support comprises plural wheels
29 RELATIVELY MOVABLE END WHEELS
30 .Vertically adjustable
31 .Longitudinally outwardly biased
32 .Longitudinally adjustable
33 WITH INTERPOSED FRICTION DRIVE BELT
34 INFLATABLE MEANS
35 R NON-METALLIC TYPE TRACK OR TREAD
36 .With metal sleeve for connector pin
37 .With connecting means for reinforcing elements
38 .With metallic embedded reinforcement
35 EB .Non-metallic ground engaging means includes endless belt
39 TRACKS OR TREADS
40 .Cable connected treads
41 .Resilient connection between treads
42 ..Torsion bushing
43 ..Resilient compressible hinge
44 .Steerable
45 .Adjustable connection between treads
46 .With resiliently biased ground engaging portion
47 .With sag prevention means
48 ..Projecting truss type
49 ...Truss interconnectedd
50 .Track treads interconnected without separate fastening means
51 .With street plate
52 .With roller means
53 .One piece track tread
54 .With detachable grouser
55 ..Interconnected without separate fastening means
56 .With means for interfitting with support
57 ..Sprocket and track engagement
58 R .Separate transverse pin connector between treads
59 ..Non-cylindrical or hollow connector pin
58 PC ..Pin connectors
60 MISCELLANEOUS
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