US4276887A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Foot exerciser
Assignee: World Medical Marketing Corp
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Filing: 1980-01-14
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Granted: 1981-07-07
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Expires: 2000-01-14
Abstract
Abstract A foot exercising device is disclosed. The foot exercising device includes a pair of foot pedals and a motor for reciprocating the foot pedals. A slip clutch is connected between the foot pedals and the motor to enable the foot pedals to be reciprocated independently of the motor. In the preferred embodiment, a control circuit controls the operation of the motor as a function of the number of reciprocations of the foot pedals and/or as a function of the blood flow through the patient using the foot exercising device.
Inventors
- 👤 Steven R. Hofstein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:48
CPC Classifications
A; A63; A63B; A63B21/00; A63B21/00178; A61; A61B; A61B5/00; A61B5/22; A61B5/221; A61B5/222; A61H; A61H1/00; A61H1/02; A61H1/0237; A61H1/0266; A63B21/00181; A63B23/00; A63B23/035; A63B23/04; A63B23/08; A63B23/085; A61H2201/00; A61H2201/01; A61H2201/0173; A61H2201/0184; A61H2201/50; A61H2201/5023; A61H2201/5043; A61H2209/00; A63B2208/00; A63B2208/02; A63B2208/0242; A63B2208/0252; A63B2220/00; A63B2220/17
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
63 words
A foot exercising device, comprising: a pair of foot pedals; motor means for reciprocating said foot pedals; blood flow detector means for detecting the flow of blood through a leg of a patient using said foot exercising device; and control means connected to said blood flow detector means for controlling the operation of said motor means as a function of said blood flow.
Claim 2
Dependent Claim
63 words
A foot exercising device, comprising: a pair of foot pedals; motor means for reciprocating said foot pedals; blood flow detector means for detecting the flow of blood through a leg of a patient using said foot exercising device; and control means connected to said blood flow detector means for controlling the operation of said motor means as a function of said blood flow.
Claim 3
Dependent Claim
30 words
The foot exercising device of claim 1, wherein said control means causes said motor means to vary the reciprocation frequency of said pedals as a function of said blood flow.
Claim 4
Dependent Claim
24 words
The foot exercising device of claim 1, wherein said control means enables said motor means whenever said blood flow falls below a predetermined value.
References Cited (Backward Citations)
US3395698A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-07-06 | 1985-01-05 | 1985-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-07-06 | 1989-01-05 | 1989-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-07-06 | 1993-01-05 | 1993-07-07 | $7700.00 | Window Closed / Lapsed |