Patent US5039122A successfully refreshed from Google Patents.
US5039122A
Expired / Lapsed
US
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Bicycle auxiliary power unit
Assignee: Individual
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Filing: 1990-07-03
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Granted: 1991-08-13
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Expires: 2010-07-03
Abstract
Abstract A bicycle auxiliary power unit is provided wherein hand powered levers provide a mechanical means for transposing the natural power strokes of the rider to the mechanism propelling the vehicle. The auxiliary power unit provides a means for permitting a street bicycle to be utilized for exercising the upper and lower extremities.
Inventors
- 👤 Arthur Deutch
- 👤 Humberto Miralles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:17
CPC Classifications
B; B62; B62M; B62M1/00; B62M1/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
153 words
An auxiliary power unit for a bicycle that includes a frame, front wheel and rear wheel and handlebars, foot pedal means for driving the rear wheel, said auxiliary power unit comprising support members connected to said handlebars, brackets secured to said support members, said auxiliary power unit further including a horizontally disposed axle, brace assemblies providing a support for said last named axle, a sleeve mounted on said last named axle, drive and driven cogs secured to said sleeve, the front wheel of the bicycle including an axle having a cog thereon, endless chains connecting said driven cog to the cogs on the front wheel axle, push pull levers having handgrips secured to the upper ends thereof, a straight chain section arranged within each lever and having its ends secured to said lever, said straight chain section being arranged in engagement with said drive cog, and said drive cog functioning as a ratchet.
Claim 2
Dependent Claim
153 words
An auxiliary power unit for a bicycle that includes a frame, front wheel and rear wheel and handlebars, foot pedal means for driving the rear wheel, said auxiliary power unit comprising support members connected to said handlebars, brackets secured to said support members, said auxiliary power unit further including a horizontally disposed axle, brace assemblies providing a support for said last named axle, a sleeve mounted on said last named axle, drive and driven cogs secured to said sleeve, the front wheel of the bicycle including an axle having a cog thereon, endless chains connecting said driven cog to the cogs on the front wheel axle, push pull levers having handgrips secured to the upper ends thereof, a straight chain section arranged within each lever and having its ends secured to said lever, said straight chain section being arranged in engagement with said drive cog, and said drive cog functioning as a ratchet.
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) | 1994-08-12 | 1995-02-11 | 1995-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-08-12 | 1999-02-11 | 1999-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-08-12 | 2003-02-11 | 2003-08-13 | $7700.00 | Window Closed / Lapsed |