Patent US3917261A successfully refreshed from Google Patents.
US3917261A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Foot exercising device
Assignee: Individual
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Filing: 1974-08-05
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Granted: 1975-11-04
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Expires: 1994-08-05
Abstract
Abstract A foot exercising device having a pair of foot holders pivotably secured within a housing. The pedals are positively driven to undergo reciprocating motion 180* out of phase to impose motion on an individual''s feet. A powering motor drives the foot holders by means of rigid actuating links which are driven by eccentric connection to the motor. A clutch is interposed between the motor and the foot holders which may be operated in different active and passive exercise modes.
Inventors
- 👤 Samuel N Small
- 👤 Bernard Friedman
- 👤 Victor B Kavits
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:13
CPC Classifications
A; A61; A61H; A61H1/00; A61H1/02; A61H1/0237; A61H1/0266; A63; A63B; A63B23/00; A63B23/035; A63B23/04; A63B23/08; A61H2201/00; A61H2201/01; A61H2201/0173; A61H2201/018
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
269 words
An improved foot exercise device comprising a pair of foot pedal structures operatively mounted for pivotal movement 180* out of phase with each other about a front pivot axis oriented transversely of the plane of pivotal movement of said foot pedal structures, a first shaft journalled for rotation along a second motion axis disposed rearwardly and substantially parallel to said front pivot axis, a powering motor and a cranking mechanism disposed at opposite ends of said first shaft, a second shaft disposed along a third motion axis above and substantially parallel to said second motion axis and operatively connected to be actuated in oscillating movement by said cranking mechanism of said first shaft, link means connected between said second shaft and said foot pedal structures for transmitting oscillating movement of said second shaft so as to cause 180* out of phase pivotal movement in said foot pedal structures, said link means including two cooperating first links which are each connected to extend radially of said first pivot axis in 180* out of phase relationship, and two second links which are each connected from said second shaft to each of said first links, a counting switch means mounted in counting relation adjacent one end of said second shaft to record each oscillating traverse of said second shaft, and a movement-opposing device mounted adjacent the opposite end of said second shaft to selectively resist oscillating movement thereof, whereby said motor operates said exercise device during a passive phase and at other intervals the patient operates said device using an effort dictated by said selected resistance to movement of said second shaft.
Claim 2
Dependent Claim
269 words
An improved foot exercise device comprising a pair of foot pedal structures operatively mounted for pivotal movement 180* out of phase with each other about a front pivot axis oriented transversely of the plane of pivotal movement of said foot pedal structures, a first shaft journalled for rotation along a second motion axis disposed rearwardly and substantially parallel to said front pivot axis, a powering motor and a cranking mechanism disposed at opposite ends of said first shaft, a second shaft disposed along a third motion axis above and substantially parallel to said second motion axis and operatively connected to be actuated in oscillating movement by said cranking mechanism of said first shaft, link means connected between said second shaft and said foot pedal structures for transmitting oscillating movement of said second shaft so as to cause 180* out of phase pivotal movement in said foot pedal structures, said link means including two cooperating first links which are each connected to extend radially of said first pivot axis in 180* out of phase relationship, and two second links which are each connected from said second shaft to each of said first links, a counting switch means mounted in counting relation adjacent one end of said second shaft to record each oscillating traverse of said second shaft, and a movement-opposing device mounted adjacent the opposite end of said second shaft to selectively resist oscillating movement thereof, whereby said motor operates said exercise device during a passive phase and at other intervals the patient operates said device using an effort dictated by said selected resistance to movement of said second shaft.
Claim 3
Dependent Claim
18 words
An improved foot exercise device as claimed in claim 1 wherein said movement-opposing device is a magnetic clutch.
Claim 4
Dependent Claim
61 words
An improved foot exercise device as claimed in claim 1 wherein said counting switch means includes a switch contact arm mounted to extend radially of said second shaft so as to partake of the oscillating traverses of said second shaft, and at leAst one switch contact mounted so as to be contacted during said oscillating traverses of said switch contact arm.
Claim 5
Dependent Claim
269 words
An improved foot exercise device comprising a pair of foot pedal structures operatively mounted for pivotal movement 180* out of phase with each other about a front pivot axis oriented transversely of the plane of pivotal movement of said foot pedal structures, a first shaft journalled for rotation along a second motion axis disposed rearwardly and substantially parallel to said front pivot axis, a powering motor and a cranking mechanism disposed at opposite ends of said first shaft, a second shaft disposed along a third motion axis above and substantially parallel to said second motion axis and operatively connected to be actuated in oscillating movement by said cranking mechanism of said first shaft, a counting switch means mounted in counting relation adjacent one end of said second shaft to record each oscillating traverse of said second shaft, a magnetic clutch mounted adjacent the opposite end of said second shaft to selectively resist oscillating movement thereof, and at a central intermediate location on said second shaft between said magnetic clutch and said counting switch means a pair of first links connected to extend radially of said first pivot axis in 180* out of phase relationship, and a cooperating pair of second links connected from said second shaft to each of said first links for transmitting oscillating movement of said second shaft so as to cause 180* out of phase pivotal movement in said foot pedal structures, whereby said motor operates said exercise device during a passive phase and at other intervals the patient operates said device using an effort dictated by said selected resistance to movement of said second shaft.
Claim 6
Dependent Claim
269 words
An improved foot exercise device comprising a pair of foot pedal structures operatively mounted for pivotal movement 180* out of phase with each other about a front pivot axis oriented transversely of the plane of pivotal movement of said foot pedal structures, a first shaft journalled for rotation along a second motion axis disposed rearwardly and substantially parallel to said front pivot axis, a powering motor and a cranking mechanism disposed at opposite ends of said first shaft, a second shaft disposed along a third motion axis above and substantially parallel to said second motion axis and operatively connected to be actuated in oscillating movement by said cranking mechanism of said first shaft, a counting switch means mounted in counting relation adjacent one end of said second shaft to record each oscillating traverse of said second shaft, a magnetic clutch mounted adjacent the opposite end of said second shaft to selectively resist oscillating movement thereof, and at a central intermediate location on said second shaft between said magnetic clutch and said counting switch means a pair of first links connected to extend radially of said first pivot axis in 180* out of phase relationship, and a cooperating pair of second links connected from said second shaft to each of said first links for transmitting oscillating movement of said second shaft so as to cause 180* out of phase pivotal movement in said foot pedal structures, whereby said motor operates said exercise device during a passive phase and at other intervals the patient operates said device using an effort dictated by said selected resistance to movement of said second shaft.
References Cited (Backward Citations)
US2777439A
Cited
US3526220A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-11-03 | 1979-05-05 | 1979-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-03 | 1983-05-05 | 1983-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-03 | 1987-05-05 | 1987-11-04 | $7700.00 | Window Closed / Lapsed |