US4613130A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resilient therapeutic device with timer and indicator
Assignee: Individual
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Filing: 1985-07-15
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Granted: 1986-09-23
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Expires: 2005-07-15
Abstract
Abstract An exercise device for use in dystrophy therapy employs a compression spring which provides an adjustable resistance force. Manual application of a push-type force to a handle actuates a cumulative timer circuit for recording the elapsed time at which an exerted force exceeds a pre-established threshold force. The exercise device may also be converted to a pull mode wherein a pull force exerted between a plate and a handle connecting the exercise device actuates a cumulative timer circuit. The threshold force is adjustable by changing the axial position of the compression spring seat.
Inventors
- 👤 Harold K. Watson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:50
CPC Classifications
A; A63; A63B; A63B24/00; A63B21/00; A63B21/02; A63B21/05; A63B2220/00; A63B2220/17
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
273 words
An exercise device for use in dystrophy therapy comprising: a platform having a base adapted to be placed on a horizontal surface and a cover vertically displaceable relative to the base and forming in cooperationg with said base a housing with said cover defining a generally horizonally extending upper surface; handle means mounted in fixed relationship to said cover and extending generally vertically therefrom to upwardly terminate in an application surface to facilitate application of a downward force through a hand forced against said application surface, said application surface having an area which is substantially less than the area of the upper surface of said cover; compression spring means enclosed in said formed housing and said handle means and having opposing biasing ends to provide a variable resistance force to a force of compression exerted between said opposing ends, one said end being seated against a first seat mounted in pre-established relationship with said base, the other said end being seated against a second seat mounted in pre-established relationship with said handle means; one said seat being a variably positionable seat to adjustably vary the resistance force of said compression spring means; adjustment means to selectively pre-set the position of said adjustable seat; timer means to record cumulative elapsed time and present a visual display thereof at said cover upper surface; and switch means enclosed in said formed housing to activate said timer means when a compressive force applied at said application surface and exerted between said handle means and base exceeds said pre-set resistance force and to deactivate said timer means when said compressive force does not exceed said pre-set resistance force.
Claim 2
Dependent Claim
273 words
An exercise device for use in dystrophy therapy comprising: a platform having a base adapted to be placed on a horizontal surface and a cover vertically displaceable relative to the base and forming in cooperationg with said base a housing with said cover defining a generally horizonally extending upper surface; handle means mounted in fixed relationship to said cover and extending generally vertically therefrom to upwardly terminate in an application surface to facilitate application of a downward force through a hand forced against said application surface, said application surface having an area which is substantially less than the area of the upper surface of said cover; compression spring means enclosed in said formed housing and said handle means and having opposing biasing ends to provide a variable resistance force to a force of compression exerted between said opposing ends, one said end being seated against a first seat mounted in pre-established relationship with said base, the other said end being seated against a second seat mounted in pre-established relationship with said handle means; one said seat being a variably positionable seat to adjustably vary the resistance force of said compression spring means; adjustment means to selectively pre-set the position of said adjustable seat; timer means to record cumulative elapsed time and present a visual display thereof at said cover upper surface; and switch means enclosed in said formed housing to activate said timer means when a compressive force applied at said application surface and exerted between said handle means and base exceeds said pre-set resistance force and to deactivate said timer means when said compressive force does not exceed said pre-set resistance force.
Claim 3
Dependent Claim
32 words
The exercise device of claim 1 wherein said compression spring means comprises a coil spring having a compression force which varies in accordance with the degree of axial compression of said spring.
Claim 4
Dependent Claim
33 words
The exercise device of claim 1 wherein said spring adjustment means further comprises an adjustment screw which threadably engages said positionable spring seat to axially displace said seat upon rotation of said screw.
Claim 5
Dependent Claim
29 words
The exercise device of claim 1 further comprising a shaft axially responsive to the position of said spring seat to indicate the pre-set resistance force of said compression spring.
Claim 6
Dependent Claim
28 words
The exercise device of claim 1 further comprising indicator light means to visually indicate when a compression force applied to said handle means exceeds the pre-set resistance force.
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) | 1989-09-22 | 1990-03-24 | 1990-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-09-22 | 1994-03-24 | 1994-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-09-22 | 1998-03-24 | 1998-09-23 | $7700.00 | Window Closed / Lapsed |