Patent US3647241A successfully refreshed from Google Patents.
US3647241A
Expired / Lapsed
US
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Rider-propelled vehicle
Assignee: Individual
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Filing: 1969-12-23
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Granted: 1972-03-07
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Expires: 1989-12-23
Abstract
Abstract A rider-propelled vehicle has a footboard on which the rider may shift his weight in the propelling action and is provided at its front with a support and a handle-equipped steering shaft mounted in the support and with a fork receiving a front wheel. The rear portion of the board is slotted longitudinally to receive a rear wheel which is provided with an eccentric bearing. A shaft extending through the bearing is carried by support arms pivotally mounted upon the footboard, and a brace extends about the wheel and moves with the support arms.
Inventors
- 👤 Phillip H Huyssen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:23
CPC Classifications
B; B62; B62M; B62M1/00; B62K; B62K3/00; B62K3/002
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
145 words
In a rider-propelled vehicle, a footboard upon which the rider may stand and shift his weight forwardly and rearwardly in the propelling operation, a front support, a handle-equipped steering shaft mounted on said support and provided with a fork, a front wheel mounted in said fork, said footboard being provided at its rear with a longitudinal slot for receiving a rear wheel, support arms pivotally mounted upon said footboard at opposite sides of said slot, an axle mounted upon the tops of said support arms for swinging movement with the tops of said support arms relative to said footboard, a rear wheel within said longitudinal slot and provided with an offcenter bearing receiving said axle for the support of said wheel whereby said wheel rotates upon said Axle as the axle moves longitudinally with the swinging of said support arms during travel of said vehicle.
Claim 2
Dependent Claim
145 words
In a rider-propelled vehicle, a footboard upon which the rider may stand and shift his weight forwardly and rearwardly in the propelling operation, a front support, a handle-equipped steering shaft mounted on said support and provided with a fork, a front wheel mounted in said fork, said footboard being provided at its rear with a longitudinal slot for receiving a rear wheel, support arms pivotally mounted upon said footboard at opposite sides of said slot, an axle mounted upon the tops of said support arms for swinging movement with the tops of said support arms relative to said footboard, a rear wheel within said longitudinal slot and provided with an offcenter bearing receiving said axle for the support of said wheel whereby said wheel rotates upon said Axle as the axle moves longitudinally with the swinging of said support arms during travel of said vehicle.
Claim 3
Dependent Claim
29 words
The structure of claim 7 in which a bracket is rigidly mounted on each side of the slotted footboard and said support arms are pivotally mounted upon said bracket.
Claim 4
Dependent Claim
28 words
The structure of claim 1 in which a brace is fixed to said support arms and extends about said rear wheel for swinging movement with said support arms.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-03-07 | 1975-09-06 | 1976-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-07 | 1979-09-06 | 1980-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-07 | 1983-09-06 | 1984-03-07 | $7700.00 | Window Closed / Lapsed |