US4294236A
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: 1981-10-13
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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
2026-10-28 09:19
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; A61H2209/00; A63B2208/00; A63B2208/02; A63B2208/0242; A63B2208/0252; A63B2220/00; A63B2220/17
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
108 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; control means for controlling the operation of said motor means as a function of the blood flow through said patient as detected by said blood flow detector means, said control means causing the said motor means to vary the reciprocation frequency of said pedals as a function of said blood flow signal; and display means responsive to said blood flow signal for providing a visual indication of said blood flow.
Claim 2
Dependent Claim
108 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; control means for controlling the operation of said motor means as a function of the blood flow through said patient as detected by said blood flow detector means, said control means causing the said motor means to vary the reciprocation frequency of said pedals as a function of said blood flow signal; and display means responsive to said blood flow signal for providing a visual indication of said blood flow.
Claim 3
Dependent Claim
28 words
The foot exercising device of claim 1, further including alarm means for generating an alarm signal when said blood flow through said patient falls below a predetermined value.
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) | 1984-10-12 | 1985-04-13 | 1985-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-10-12 | 1989-04-13 | 1989-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-10-12 | 1993-04-13 | 1993-10-13 | $7700.00 | Window Closed / Lapsed |