Patent US4521012A successfully refreshed from Google Patents.
US4521012A
Expired / Lapsed
US
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Variable resistance exercise apparatus and improved method of exercising
Assignee: Individual
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Filing: 1983-01-31
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Granted: 1985-06-04
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Expires: 2003-01-31
Abstract
Abstract A variable resistance exercise apparatus is disclosed specifically adapted to provide an improved method or aerobic and anaerobic exercising of the upper extremities and upper body portion of a user. The apparatus is characterized by the use of a hand crank assembly adjustably positioned at a vertical height above a support platform to cause a user to reach and twist during exercise upon the apparatus. The length of the hand crank assembly may be adjusted to accommodate differing extremity lengths of the particular user and the exercise resistance load applied to the hand crank may be varied to accommodate both professional athletic training as well as residential fitness programs.
Inventors
- 👤 Theodore E. Cosby
- 👤 Patrick J. Cunningham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:04
CPC Classifications
A; A63; A63B; A63B22/00; A63B22/06; A63B22/0605; A63B22/0002; A63B22/0005; A63B2022/0611; A63B2022/0623; A63B2022/0635; A63B2022/0647; A63B21/00; A63B21/22; A63B21/225; A63B2208/00; A63B2208/02; A63B2208/0204
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
242 words
An improved exercise apparatus comprising: a platform adapted to be positioned upon a support surface; a column extending from said platform in a generally vertical orientation, said column comprising a pair of struts extending from said platform; a shaft mounted between said struts; a yoke having a first end pivotally connected to said shaft and a second end extending away from said shaft; a hand crank mounted to said second end of said yoke such that pivoting said yoke upon said shaft provides means for adjusting the distance between said hand crank and said platform to cause a full extension of one of the upper extremities of a user standing on said platform and grasping said hand crank, thereby causing the user's body to rotate about the hips and waist, causing the user's torso to stretch and twist during cycling motion of said hand crank to exercise the muscles of the user's waist, abdomen, chest, back, and shoulders; means for retaining said hand crank at a selected distance from said platform; and a drive train connected to said hand crank, said drive train including: a first gear and a second gear mounted to said shaft; drive means for transmitting force between said hand crank and said first gear; a third gear drivingly connected to said second gear; and means for applying force to said third gear to provide a selected resistance through said drive train to cycling motion of said hand crank.
Claim 2
Dependent Claim
242 words
An improved exercise apparatus comprising: a platform adapted to be positioned upon a support surface; a column extending from said platform in a generally vertical orientation, said column comprising a pair of struts extending from said platform; a shaft mounted between said struts; a yoke having a first end pivotally connected to said shaft and a second end extending away from said shaft; a hand crank mounted to said second end of said yoke such that pivoting said yoke upon said shaft provides means for adjusting the distance between said hand crank and said platform to cause a full extension of one of the upper extremities of a user standing on said platform and grasping said hand crank, thereby causing the user's body to rotate about the hips and waist, causing the user's torso to stretch and twist during cycling motion of said hand crank to exercise the muscles of the user's waist, abdomen, chest, back, and shoulders; means for retaining said hand crank at a selected distance from said platform; and a drive train connected to said hand crank, said drive train including: a first gear and a second gear mounted to said shaft; drive means for transmitting force between said hand crank and said first gear; a third gear drivingly connected to said second gear; and means for applying force to said third gear to provide a selected resistance through said drive train to cycling motion of said hand crank.
Claim 3
Dependent Claim
28 words
The exercise apparatus of claim 1 further comprising means for varying the magnitude of the exercise force applied in opposition to the manual rotation of said hand crank.
Claim 4
Dependent Claim
18 words
The exercise apparatus of claim 2 further comprising means for adjusting the axial length of said hand crank.
Claim 5
Dependent Claim
21 words
The exercise apparatus of claim 2 wherein said exercise force applying means comprises a hydraulic pump communicating with said hand crank.
Claim 6
Dependent Claim
27 words
The exercise apparatus of claim 4 wherein said exercise force varying means comprises a pressure regulator adapted to govern the hydraulic pressure applied to said hydraulic pump.
Claim 7
Dependent Claim
18 words
The exercise apparatus of claim 5 further comprising means for indicating the rotation speed of said hand crank.
Claim 8
Dependent Claim
14 words
The exercise apparatus of claim 6 further comprising a timer carried by said column.
Claim 9
Dependent Claim
206 words
An improved method of exercising the upper extremities and upper body of a user, comprising the steps of: positioning a platform upon a support surface; extending a column comprising a pair of struts extending from said platform in a generally vertical orientation; mounting a shaft between said struts; pivotally connecting a first end of a yoke to said shaft such that a second end of said yoke extends away from said shaft; mounting a hand crank to said second end of said yoke for manual rotation in a cycling motion; adjusting the distance of said hand crank from said platform by means of rotating said yoke about said shaft to position said hand crank at a location sufficient to cause a user standing on said base and grasping said hand crank to stretch one of the user's upper extremities to its fullest extent; retaining said hand crank at a selected distance from the platform; connecting first drive means between said hand crank and said shaft; connecting a second drive means between said shaft and a hydraulic pump; and adjusting said hydraulic pump to control the resistance that the second drive means provides to rotation of said shaft by said hand crank through the first drive means.
Claim 10
Dependent Claim
206 words
An improved method of exercising the upper extremities and upper body of a user, comprising the steps of: positioning a platform upon a support surface; extending a column comprising a pair of struts extending from said platform in a generally vertical orientation; mounting a shaft between said struts; pivotally connecting a first end of a yoke to said shaft such that a second end of said yoke extends away from said shaft; mounting a hand crank to said second end of said yoke for manual rotation in a cycling motion; adjusting the distance of said hand crank from said platform by means of rotating said yoke about said shaft to position said hand crank at a location sufficient to cause a user standing on said base and grasping said hand crank to stretch one of the user's upper extremities to its fullest extent; retaining said hand crank at a selected distance from the platform; connecting first drive means between said hand crank and said shaft; connecting a second drive means between said shaft and a hydraulic pump; and adjusting said hydraulic pump to control the resistance that the second drive means provides to rotation of said shaft by said hand crank through the first drive means.
Claim 11
Dependent Claim
24 words
The method of claim 8 further comprising the step of: applying a rotational force in opposition to the manual rotation of said hand crank.
Claim 12
Dependent Claim
28 words
The method of claim 9 further comprising the step of: varying the magnitude of said applied rotational force in opposition to the manual rotation of said hand crank.
Claim 13
Dependent Claim
17 words
The method of claim 10 further comprising the steps of varying the length of said hand crank.
References Cited (Backward Citations)
CA730035A
Cited
US1820372A
Cited
US2020992A
Cited
FR1070769A
Cited
US2783044A
Cited
US3309084A
Cited
GB1153143A
Cited
US3494616A
Cited
US3572699A
Cited
US3731921A
Cited
US4060241A
Cited
US4222376A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-06-03 | 1988-12-03 | 1989-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-06-03 | 1992-12-03 | 1993-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-06-03 | 1996-12-03 | 1997-06-04 | $7700.00 | Window Closed / Lapsed |