Patent US4037854A successfully refreshed from Google Patents.
US4037854A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flywheel aided bicycle
Assignee: Individual
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Filing: 1975-10-15
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Granted: 1977-07-26
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Expires: 1995-10-15
Abstract
Abstract A bicycle includes a flywheel mounted coaxially and rotatably with respect to a pedal-carrying shaft. The flywheel is drivingly coupled to the rear tractive wheel via a pair of friction wheels mounted in gear train fashion to provide a ratio of at least 1,000 revolutions of the flywheel per revolution of the tractive wheel. One of the intermediate wheels serves as a slip clutch for selective engagement with the tractive wheel. This clutch wheel has its axle mounted in an elongated slot. A bendable arcuate control lever positions the axle along the slot.
Inventors
- 👤 Eugene Large
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:01
CPC Classifications
B; B62; B62M; B62M1/00; B62M1/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
204 words
A pedal propelled vehicle comprising a frame in which are journalled a tractive wheel and a pedal carrying shaft, first transmission means drivingly coupling said pedal carrying shaft to said tractive wheel, flywheel means mounted coaxial and rotatable with respect to said shaft, second transmission means carried by said frame for drivingly interconnecting said tractive wheel to said flywheel, said second transmission means including a slip clutch means, an elongated slot means in said frame directed radially from said tractive wheel, said slip clutch means comprising a clutch wheel forming a part of said second transmission means which is carried rotatably on an axle passing through said slot means, said clutch wheel being dimensioned to engage the circumference of said tractive wheel when said axle is positioned at a particular location along said slot means, an elongated lever pivotally mounted at one end to said frame; said lever being rotatably secured to said axle at an intermediate position along the length of said lever for selectively positioning said axle along said slot means, spring means acting between said lever and said frame for urging said clutch wheel out of engagement with said tractive wheel; and a handgrip on the other end of said lever.
Claim 2
Dependent Claim
204 words
A pedal propelled vehicle comprising a frame in which are journalled a tractive wheel and a pedal carrying shaft, first transmission means drivingly coupling said pedal carrying shaft to said tractive wheel, flywheel means mounted coaxial and rotatable with respect to said shaft, second transmission means carried by said frame for drivingly interconnecting said tractive wheel to said flywheel, said second transmission means including a slip clutch means, an elongated slot means in said frame directed radially from said tractive wheel, said slip clutch means comprising a clutch wheel forming a part of said second transmission means which is carried rotatably on an axle passing through said slot means, said clutch wheel being dimensioned to engage the circumference of said tractive wheel when said axle is positioned at a particular location along said slot means, an elongated lever pivotally mounted at one end to said frame; said lever being rotatably secured to said axle at an intermediate position along the length of said lever for selectively positioning said axle along said slot means, spring means acting between said lever and said frame for urging said clutch wheel out of engagement with said tractive wheel; and a handgrip on the other end of said lever.
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) | 1980-07-25 | 1981-01-24 | 1981-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-07-25 | 1985-01-24 | 1985-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-07-25 | 1989-01-24 | 1989-07-26 | $7700.00 | Window Closed / Lapsed |