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US3559986A
Expired / Lapsed
US
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Rollably mounted dollies for leg exercises
Assignee: Individual
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Filing: 1968-06-06
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Granted: 1971-02-02
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Expires: 1988-06-06
Abstract
Abstract A pair of dollies supported for rolling movement along one or two guideways permits a person to stand with a foot on each dolly and laterally separate the dollies in exercising the leg muscles. Each dolly carries a tread portion pivotally movable to positions disposed at an angle to the direction of separation of the dollies. A method of exercising the leg muscles while in a standing position with a foot on each dolly includes the steps of laterally spreading the two feet apart to permit the torso to settle toward the ground followed by laterally drawing the feet together to raise the weight of the lowered torso toward its initial position.
Inventors
- 👤 Harry C Ehrmantraut
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:12
CPC Classifications
A; A63; A63B; A63B23/00; A63B23/035; A63B23/03516; A63B23/03533; A63B23/04; A63B23/0405; A63B23/0417; A63B23/0482; A63B23/0488; A63B22/00; A63B22/0025; A63B2022/0038; A63B22/0046; A63B22/14; A63B22/20; A63B22/201; A63B22/203
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
A leg-exercising apparatus comprising a pair of rollably supported dollies, each dollies adapted to receive one foot of a person standing thereon, guide means cooperating with said dollies for guiding the dollies, a tread supported on each of said dollies, said treads being pivotally mounted on the upper surfaces of the dollies, ribs and a tube along two parallel edges of each tread, the tubes of each tread slidably engaging the upper surface of the respective dollies, and stop means on the upper surface of each dolly to limit the pivotable movement of the tread.
Claim 2
Dependent Claim
95 words
A leg-exercising apparatus comprising a pair of rollably supported dollies, each dollies adapted to receive one foot of a person standing thereon, guide means cooperating with said dollies for guiding the dollies, a tread supported on each of said dollies, said treads being pivotally mounted on the upper surfaces of the dollies, ribs and a tube along two parallel edges of each tread, the tubes of each tread slidably engaging the upper surface of the respective dollies, and stop means on the upper surface of each dolly to limit the pivotable movement of the tread.
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) | 1974-02-01 | 1974-08-03 | 1975-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-01 | 1978-08-03 | 1979-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-01 | 1982-08-03 | 1983-02-02 | $7700.00 | Window Closed / Lapsed |