US4915374A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recumbent exercise cycle with articulated pedals
Assignee: MEDMETRIC Corp A CORP OF CA
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Filing: 1989-02-02
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Granted: 1990-04-10
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Expires: 2009-02-02
Abstract
Abstract A recumbent exercise cycle comprises a pair of pedals and a seat which are each individually adjustable relative to a crankshaft that is rotatably mounted on the frame of the exercise cycle. In combination, each pedal is connected by an extension arm to a point on a crank arm for movement of the pedal along a circular path about the point on the crank arm, and the crank arm is connected to the crankshaft for movement of the point along a circular path about the crankshaft.
Inventors
- 👤 K. Richard Watkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:10
CPC Classifications
A; A63; A63B; A63B22/00; A63B22/06; A63B22/0605; B; B62; B62M; B62M3/00; B62M3/02; A63B2022/0611; A63B2022/0617; A63B2022/0623; A63B2022/0635; A63B2022/0652; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2164; Y10T74/2167; Y10T74/2168; Y10T74/217
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
144 words
A recumbent exercise cycle which comprises: a frame; a rotatable crankshaft mounted on said frame, said crankshaft having a first end and a second end; a first crank arm and a second crank arm, each fixedly attached to said respective first and second ends of said crankshaft; a first pedal and a second pedal; a first offset shaft and a second offset shaft oriented substantially parallel to said crankshaft and respectively coupled thereto by said first and second crank arms for the rotation of said offset shafts about said crankshaft; a first extension arm and a second extension arm extending from said first and second offset shafts, respectively, and attached to said first and second pedals, respectively, for rotation of said pedals about said offset shafts; and means associated with said shafts to selectively position said offset shafts at points along said crank arms.
Claim 2
Dependent Claim
144 words
A recumbent exercise cycle which comprises: a frame; a rotatable crankshaft mounted on said frame, said crankshaft having a first end and a second end; a first crank arm and a second crank arm, each fixedly attached to said respective first and second ends of said crankshaft; a first pedal and a second pedal; a first offset shaft and a second offset shaft oriented substantially parallel to said crankshaft and respectively coupled thereto by said first and second crank arms for the rotation of said offset shafts about said crankshaft; a first extension arm and a second extension arm extending from said first and second offset shafts, respectively, and attached to said first and second pedals, respectively, for rotation of said pedals about said offset shafts; and means associated with said shafts to selectively position said offset shafts at points along said crank arms.
Claim 3
Dependent Claim
40 words
A recumbent exercise cycle as recited in claim 1 further comprising a seat support adjustably mounted on said frame to position said seat support relative to said crankshaft within a plane substantially perpendicular to the longitudinal axis of said crankshaft.
Claim 4
Dependent Claim
29 words
A recumbent exercise cycle as recited in claim 1 further comprising means associated with each of said pedals to selectively position said pedal at points along said extension arm.
Claim 5
Dependent Claim
19 words
A recumbent exercise cycle as recited in claim 1 wherein said pedals are rotatably attached to said extension arms.
Claim 6
Dependent Claim
20 words
A recumbent exercise cycle as recited in claim 1 wherein said crank arms are oriented substantially perpendicular to said crankshaft.
Claim 7
Dependent Claim
113 words
A recumbent exercise cycle which comprises: a frame; a rotatable crankshaft mounted on said frame, said crankshaft having a first end and a second end; a first pedal and a second pedal; a first crank arm and a second crank arm each fixedly attached to said respective first and second ends of said crankshaft substantially perpendicular thereto; and a first extension arm and a second extension arm, each having an offset shaft with means for joining to said respective crank arms at selected points thereon, and said pedals being attached to said respective extension arm for movement of said pedals in a circular path about the selected point on said respective crank arms.
Claim 8
Dependent Claim
113 words
A recumbent exercise cycle which comprises: a frame; a rotatable crankshaft mounted on said frame, said crankshaft having a first end and a second end; a first pedal and a second pedal; a first crank arm and a second crank arm each fixedly attached to said respective first and second ends of said crankshaft substantially perpendicular thereto; and a first extension arm and a second extension arm, each having an offset shaft with means for joining to said respective crank arms at selected points thereon, and said pedals being attached to said respective extension arm for movement of said pedals in a circular path about the selected point on said respective crank arms.
Claim 9
Dependent Claim
40 words
A recumbent exercise cycle as recited in claim 6 further comprising a seat support adjustably mounted on said frame to position said seat support relative to said crankshaft within a plane substantially perpendicular to the longitudinal axis of said crankshaft.
Claim 10
Dependent Claim
19 words
A recumbent exercise cycle as recited in claim 7 wherein said pedals are rotatably attached to said extension arms.
Claim 11
Dependent Claim
113 words
An exercise apparatus for rehabilitation of the lower body which comprises: a frame; a crankshaft mounted on said frame; a first pedal and a second pedal; a first offset shaft and a second offset shaft, said first and second offset shafts being oriented substantially parallel to said crankshaft; a first crank arm and a second crank arm for coupling said offset shafts to respective first and second ends of said crankshaft; a first extension arm and a second extension arm for respectively moving said first and second pedals in circular paths around said first and second offset shafts; and an adjustable connecting means for selectively positioning said offset shafts along said crank arms.
Claim 12
Dependent Claim
113 words
An exercise apparatus for rehabilitation of the lower body which comprises: a frame; a crankshaft mounted on said frame; a first pedal and a second pedal; a first offset shaft and a second offset shaft, said first and second offset shafts being oriented substantially parallel to said crankshaft; a first crank arm and a second crank arm for coupling said offset shafts to respective first and second ends of said crankshaft; a first extension arm and a second extension arm for respectively moving said first and second pedals in circular paths around said first and second offset shafts; and an adjustable connecting means for selectively positioning said offset shafts along said crank arms.
Claim 13
Dependent Claim
23 words
An exercise apparatus as recited in claim 9 further comprising an adjustable connecting means for selectively positioning said pedal along said extension arm.
Claim 14
Dependent Claim
39 words
An exercise apparatus as recited in claim 9 further comprising a seat support adjustably mounted on said frame to position said seat support relative to said crankshaft within a plane substantially perpendicular to the longitudinal axis of said crankshaft.
Claim 15
Dependent Claim
18 words
An exercise apparatus as recited in claim 9 wherein said pedals are rotatably attached to said extension arms.
Claim 16
Dependent Claim
21 words
An exercise apparatus as recited in claim 9 wherein each of said crank arms is oriented substantially perpendicular to said crankshaft.
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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) | 1993-04-09 | 1993-10-09 | 1994-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-04-09 | 1997-10-09 | 1998-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-04-09 | 2001-10-09 | 2002-04-10 | $7700.00 | Window Closed / Lapsed |