US4258485A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pedal plow
Assignee: Individual
•
Filing: 1979-08-14
•
Granted: 1981-03-31
•
Expires: 1999-08-14
Abstract
Abstract A pedal driven plow having a frame, front and rear wheeled axles and a plow blade pivotally mounted to the front of the frame. A pair of longitudinally extended, pivotally mounted pedals have tongues on their underside which alternately engage gears on the rear axle to propel the plow when the pedals are alternately raised and depressed by a walking motion. Support bars are provided along the frame sides. An alternate embodiment utilizes a chain drive.
Inventors
- 👤 M. Shamel Gof
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:57
CPC Classifications
B; B62; B62M; B62M1/00; B62M1/24; E; E01; E01H; E01H5/00; E01H5/04; E01H5/06
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
174 words
A manually propelled pedal driven plow comprising: a rectangular frame; a front axle and a rear axle mounted laterally across said frame towards its front and rear edges; a pair of wheels mounted on each of said axles for rolling movement of said plow; a plow blade pivotally mounted to a bar secured to the front end of said frame; a pair of longitudinally extending spaced apart pedals pivotally mounted on said frame; a depressed lateral bar to limit the downward movement of the forward ends of said pedals; each of said pedals having a strap to secure the position of feet on said pedals; gear means mounted on a rear axle of said frame to engage said pedals; said pedals and gears means being engaged such that downward force exerted on said pedals result in driving said gear means, resulting in rotation of said axle and movement of the wheels mounted on said axle; alternate raising and depression of said pedals resulting in continuous rotation of said axle to propel said pedal plow.
Claim 2
Dependent Claim
174 words
A manually propelled pedal driven plow comprising: a rectangular frame; a front axle and a rear axle mounted laterally across said frame towards its front and rear edges; a pair of wheels mounted on each of said axles for rolling movement of said plow; a plow blade pivotally mounted to a bar secured to the front end of said frame; a pair of longitudinally extending spaced apart pedals pivotally mounted on said frame; a depressed lateral bar to limit the downward movement of the forward ends of said pedals; each of said pedals having a strap to secure the position of feet on said pedals; gear means mounted on a rear axle of said frame to engage said pedals; said pedals and gears means being engaged such that downward force exerted on said pedals result in driving said gear means, resulting in rotation of said axle and movement of the wheels mounted on said axle; alternate raising and depression of said pedals resulting in continuous rotation of said axle to propel said pedal plow.
Claim 3
Dependent Claim
82 words
The pedal plow of claim 1 wherein said gear means comprises: a pair of teethed gears mounted on said rear axle such that each gear is positioned beneath one of said pedals; said pedals extending rearward and over said gears; each of said pedals having spring-loaded tongues positioned beneath said pedals such that said tongues engage the teeth of said gears; the alternate depression and raising of said pedals resulting in arcuate movement of said gears causing continuous rotation of said axle.
Claim 4
Dependent Claim
97 words
The pedal plow of claim 1 further comprising: a second rear axle, spaced forward of said first rear axle; a first sprocket gear having sprocket teeth centrally positioned on said second rear axle between said pedals; said first sprocket gear having laterally extending teeth on each of its sides to engage said pedals; said gear means including: a second sprocket gear mounted on said first rear axle; a chain connecting said sprocket gears; the alternate depression and raising of said pedals resulting in continuous rotation of said sprocket gears thus resulting in propulsion of said pedal plow.
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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) | 1984-03-30 | 1984-09-29 | 1985-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-03-30 | 1988-09-29 | 1989-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-03-30 | 1992-09-29 | 1993-03-31 | $7700.00 | Window Closed / Lapsed |