Patent US4325565A successfully refreshed from Google Patents.
US4325565A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cambering vehicle
Assignee: Motors Liquidation Co
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Filing: 1980-03-03
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Granted: 1982-04-20
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Expires: 2000-03-03
Abstract
Abstract A three-wheeled cambering vehicle having a platform for supporting the vehicle operator and having a pair of laterally spaced rear wheels mounted thereon. The vehicle has a centralized tubular frame with a front leg member that supports a steerable front fork and wheel assembly and a rearward seat for the vehicle operator. A lower leg of the frame is supported for turning movement with respect to a longitudinal roll axis by the platform which permits the frame and front fork and wheel assembly to be cambered by the vehicle operator as the platform remains in a predetermined plane with respect to the support surface.
Inventors
- 👤 Frank J. Winchell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:45
CPC Classifications
B; B62; B62K; B62K5/00; B62K5/02; B62K5/027; B62K11/00; B62K11/12; B62K5/10
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
231 words
A cambering vehicle for transporting a vehicle operator along a support surface, said vehicle comprising a centralized main frame having an upwardly extending forward frame member and a lower tubular frame member extending along the longitudinal axis of the vehicle rearwardly from the lower end of said forward frame member to the rear of said vehicle, steerable front wheel means supported by said forward frame member for contacting said support surface, manual steering means operatively connected to said steerable front wheel means, a seat for a vehicle operator attached to said lower frame member, a one-piece support platform extending to the rear of said vehicle from said forward frame member and laterally across said lower frame member for receiving the feet of the vehicle operator, bearing means operatively connecting said lower frame member to said platform for supporting said frame on said platform for free cambering movement about a longitudinal roll axis coplanar with the longitudinal axis of said platform, transverse axle means rotatably supporting the central frame secured to said platform, rear wheel means underlying said seat means and supported on opposite outboard ends of said axle means for contacting said support surface to support said platform in fixed angular relationship with respect to said support surface while allowing the operator when seated to impart balancing moments through his feet while cambering said central frame and said front wheel means.
Claim 2
Dependent Claim
231 words
A cambering vehicle for transporting a vehicle operator along a support surface, said vehicle comprising a centralized main frame having an upwardly extending forward frame member and a lower tubular frame member extending along the longitudinal axis of the vehicle rearwardly from the lower end of said forward frame member to the rear of said vehicle, steerable front wheel means supported by said forward frame member for contacting said support surface, manual steering means operatively connected to said steerable front wheel means, a seat for a vehicle operator attached to said lower frame member, a one-piece support platform extending to the rear of said vehicle from said forward frame member and laterally across said lower frame member for receiving the feet of the vehicle operator, bearing means operatively connecting said lower frame member to said platform for supporting said frame on said platform for free cambering movement about a longitudinal roll axis coplanar with the longitudinal axis of said platform, transverse axle means rotatably supporting the central frame secured to said platform, rear wheel means underlying said seat means and supported on opposite outboard ends of said axle means for contacting said support surface to support said platform in fixed angular relationship with respect to said support surface while allowing the operator when seated to impart balancing moments through his feet while cambering said central frame and said front wheel means.
Claim 3
Dependent Claim
229 words
A cambering vehicle for transporting a vehicle operator along a support surface, said vehicle comprising a central tubular frame having an upwardly extending forward frame member and a lower frame member extending along the longitudinal axis of the vehicle rearwardly from the lower end of said forward frame member to the end of said vehicle, steerable front wheel means supported by said forward frame member for contacting said support surface, manual steering means operatively connected to said steerable front wheel means, a shell-like support platform having a centralized longitudinal axis extending to the rear of said vehicle from said forward frame member and laterally across said lower frame member for receiving the feet of the vehicle operator, bearing means pivotally connecting said lower frame member to said platform for supporting said frame on said platform for substantially unrestrained clockwise and counterclockwise pivotal movement about a longitudinal roll axis coplanar with the longitudinal axis of said vehicle, transverse rear axle means secured to said platform, rear wheel means supported on opposite outboard ends of said axle means for contacting said support surface to support said platform in fixed angular relationship with respect to said support surface while allowing said operator to stand in a natural upright manner on said platform and straddle said longitudinal roll axis to impart balancing moments while simultaneously cambering said frame and said front wheel means.
Claim 4
Dependent Claim
229 words
A cambering vehicle for transporting a vehicle operator along a support surface, said vehicle comprising a central tubular frame having an upwardly extending forward frame member and a lower frame member extending along the longitudinal axis of the vehicle rearwardly from the lower end of said forward frame member to the end of said vehicle, steerable front wheel means supported by said forward frame member for contacting said support surface, manual steering means operatively connected to said steerable front wheel means, a shell-like support platform having a centralized longitudinal axis extending to the rear of said vehicle from said forward frame member and laterally across said lower frame member for receiving the feet of the vehicle operator, bearing means pivotally connecting said lower frame member to said platform for supporting said frame on said platform for substantially unrestrained clockwise and counterclockwise pivotal movement about a longitudinal roll axis coplanar with the longitudinal axis of said vehicle, transverse rear axle means secured to said platform, rear wheel means supported on opposite outboard ends of said axle means for contacting said support surface to support said platform in fixed angular relationship with respect to said support surface while allowing said operator to stand in a natural upright manner on said platform and straddle said longitudinal roll axis to impart balancing moments while simultaneously cambering said frame and said front wheel means.
Claim 5
Dependent Claim
243 words
A cambering vehicle for transporting a vehicle operator along a support surface, said vehicle comprising a centralized main cambering frame having an upwardly extending forward frame member and a tubular lower frame member extending along the longitudinal axis of said vehicle and rearwardly from the lower end of said forward frame member, a seat for the vehicle operator, an upright for said seat extending upwardly from the trailing end portion of said lower frame member for cambering movement therewith, steerable front wheel means supported by said forward frame member for contacting said support surface, manual steering means operatively connected to said steerable front wheel means, an operator support platform extending rearwardly from said forward frame member to said upright and extending laterally across said lower frame member for receiving the feet of the vehicle operator, bearing means operatively connecting said lower frame member to said platform for supporting said cambering frame on said platform for unrestrained cambering moments about a longitudinal roll axis coplanar with the longitudinal axis of said vehicle, transverse rear axle means secured to said platform, rear wheel means supported on opposite outboard ends of said axle means for contacting said support surface to support said platform in a predetermined angular relationship with respect to said support surface while allowing said operator to sit on said seat and straddle the longitudinal roll axis to impart balancing moments while cambering said seat with said main frame and said front wheel means.
Claim 6
Dependent Claim
243 words
A cambering vehicle for transporting a vehicle operator along a support surface, said vehicle comprising a centralized main cambering frame having an upwardly extending forward frame member and a tubular lower frame member extending along the longitudinal axis of said vehicle and rearwardly from the lower end of said forward frame member, a seat for the vehicle operator, an upright for said seat extending upwardly from the trailing end portion of said lower frame member for cambering movement therewith, steerable front wheel means supported by said forward frame member for contacting said support surface, manual steering means operatively connected to said steerable front wheel means, an operator support platform extending rearwardly from said forward frame member to said upright and extending laterally across said lower frame member for receiving the feet of the vehicle operator, bearing means operatively connecting said lower frame member to said platform for supporting said cambering frame on said platform for unrestrained cambering moments about a longitudinal roll axis coplanar with the longitudinal axis of said vehicle, transverse rear axle means secured to said platform, rear wheel means supported on opposite outboard ends of said axle means for contacting said support surface to support said platform in a predetermined angular relationship with respect to said support surface while allowing said operator to sit on said seat and straddle the longitudinal roll axis to impart balancing moments while cambering said seat with said main frame and said front wheel means.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-04-19 | 1985-10-19 | 1986-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-04-19 | 1989-10-19 | 1990-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-04-19 | 1993-10-19 | 1994-04-20 | $7700.00 | Window Closed / Lapsed |