Patent US4273113A successfully refreshed from Google Patents.
US4273113A
Expired / Lapsed
US
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Foot exerciser
Assignee: World Medical Marketing Corp
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Filing: 1980-01-14
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Granted: 1981-06-16
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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
2026-11-09 10:48
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; A61H2209/00; A63B2208/00; A63B2208/02; A63B2208/0242; A63B2208/0252; A63B2220/00; A63B2220/17
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
83 words
A foot exercising device, comprising: a pair of pedals; motor means for reciprocating said foot pedals; and control circuit means for controlling the operation of said motor means, said control circuit means sequentially placing said motor means in a passive and an active mode of operation, said control circuit means switching said motor means from said passive mode to said active mode after it has detected that said pedals have been reciprocated m times during said passive mode, m being a positive integer.
Claim 2
Dependent Claim
83 words
A foot exercising device, comprising: a pair of pedals; motor means for reciprocating said foot pedals; and control circuit means for controlling the operation of said motor means, said control circuit means sequentially placing said motor means in a passive and an active mode of operation, said control circuit means switching said motor means from said passive mode to said active mode after it has detected that said pedals have been reciprocated m times during said passive mode, m being a positive integer.
Claim 3
Dependent Claim
44 words
The foot exercising device of claim 1, wherein said control circuit means switches said motor means from said active to said passive mode after it has detected that said pedals have been reciprocated n times during said active mode, n being a positive integer.
Claim 4
Dependent Claim
17 words
the foot exercising device of claim 2, further including means for varying said integers m and n.
Claim 5
Dependent Claim
128 words
The foot exercising device of claim 2, wherein said control circuit means comprises: means for generating a single count pulse each time said pedals complete one reciprocation; passive counter means for counting said count pulses during said passive mode of operation and for generating an end of passive mode signal when said passive mode counter means has counted m count pulses; active mode counter means for counting said count pulses during said active mode of operation and for generating an end of active mode signal when said active mode counter has counted n count pulses; and means responsive to said end of passive mode and end of active mode signals for enabling said motor means during said passive mode and disabling said motor means during said active mode.
Claim 6
Dependent Claim
15 words
The foot exercising device of claim 1, further including means for varying said integer m.
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) | 1984-06-15 | 1984-12-15 | 1985-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-06-15 | 1988-12-15 | 1989-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-06-15 | 1992-12-15 | 1993-06-16 | $7700.00 | Window Closed / Lapsed |