Patent US3746113A successfully refreshed from Google Patents.
US3746113A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Motorcycle
Assignee: Individual
•
Filing: 1971-07-06
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Granted: 1973-07-17
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Expires: 1991-07-06
Abstract
Abstract A lightweight motorcycle particularly useful for rough terrain cross-country travel by sportsmen and the like. The vehicle features a hinged two-section spring frame and low pressure balloon tires on cantilevered axles. Both wheels of the vehicle are powered from a centrally located engine. A pair of springloaded adjustable foot rests on the front frame section are also useful in braking and steering on rough ground and can form a stand for the vehicle at rest.
Inventors
- 👤 H Tidwell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:16
CPC Classifications
B; B62; B62M; B62M23/00; B60; B60T; B60T1/00; B60T1/12; B60T1/14; B62H; B62H1/00; B62H1/06; B62H1/10; B62H1/14; B62J; B62J25/00; B62J25/06; B62K; B62K11/00; B62K11/02; B62K11/04; B62K21/00; B62L; B62L1/00; B62L1/005; B62L3/00; B62L3/04; B62M9/00; B62M9/02
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
170 words
A motorcycle comprising front and rear frame sections which are articulated on a generally vertical axis near the middle of the motorcycle, each frame section including a lower resilient wheel suspension bar, front and rear wheels for the motorcycle including axle members, means for attaching the axle members to said resilient wheel suspension bars with the axle members supported at one end only in cantilevered relation with respect to said bars, an engine on one of said frame sections, driving connecting means between the engine and said front and rear wheels, said resilient wheel suspension bars of the front and rear frame sections being offset in opposite lateral directions and said axle members being cantilevered from said bars in opposite directions, said bars serving as torsion springs for the front and rear wheels of the motorcycle and also resisting forces on the wheels in a vertical direction, and said wheel suspension bars each having integral transverse axis spring coils formed therein to resiliently resist said forces in a vertical direction.
Claim 2
Dependent Claim
170 words
A motorcycle comprising front and rear frame sections which are articulated on a generally vertical axis near the middle of the motorcycle, each frame section including a lower resilient wheel suspension bar, front and rear wheels for the motorcycle including axle members, means for attaching the axle members to said resilient wheel suspension bars with the axle members supported at one end only in cantilevered relation with respect to said bars, an engine on one of said frame sections, driving connecting means between the engine and said front and rear wheels, said resilient wheel suspension bars of the front and rear frame sections being offset in opposite lateral directions and said axle members being cantilevered from said bars in opposite directions, said bars serving as torsion springs for the front and rear wheels of the motorcycle and also resisting forces on the wheels in a vertical direction, and said wheel suspension bars each having integral transverse axis spring coils formed therein to resiliently resist said forces in a vertical direction.
Claim 3
Dependent Claim
35 words
The structure defined by claim 1, and a pair of vertically adjustable and lockable foot rest members and being engageable with the ground during operation of the motorcycle to facilitate maneuvering it on rough terrain.
Claim 4
Dependent Claim
35 words
The structure of claim 1, and said spring coils of the forward suspension bar disposed rearwardly of the front wheel and said spring coils of the rear suspension bar disposed forwardly of the rear wheel.
Claim 5
Dependent Claim
35 words
The structure of claim 3, and means forming a flexible connection between the forward and rear extremities of said forward and rear suspension bars and substantially rigid parts of said front and rear frame sections.
References Cited (Backward Citations)
US432124A
Cited
DE79225C
Cited
US647789A
Cited
US841624A
Cited
DE570420C
Cited
FR1149611A
Cited
US3045772A
Cited
US3521904A
Cited
US3642083A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-16 | 1977-01-15 | 1977-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-16 | 1981-01-15 | 1981-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-16 | 1985-01-15 | 1985-07-17 | $7700.00 | Window Closed / Lapsed |