US4214748A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spring-biased exercise apparatus
Assignee: BLACKMON ENTERPRISES Inc
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Filing: 1978-08-07
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Granted: 1980-07-29
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Expires: 1998-08-07
Abstract
Abstract The exercise apparatus has a base. A generally U-shaped upright member has the base thereof pivotally connected to the base of the exerciser. An essentially U-shaped bolt is attached at the outer end portions of its arms to the U-shaped upright member. A spring or springs acting in tension is attached to the bolt and to the base of the exerciser.
Inventors
- 👤 Charles V. Blackmon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:28
CPC Classifications
A; A63; A63B; A63B21/00; A63B21/02; A63B21/04; A63B23/00; A63B23/035; A63B23/12; A63B23/129
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
168 words
An exercise device comprising a base; a generally U-shaped member having arms and a base pivotally connected to the base of the device; a U-shaped bolt means having spaced arms fixedly attached directly to the base of the U-shaped member; a plane including the spaced arms of the U-shaped bolt member forming an angle of less than 90° with a plane passing through the arms of the U-shaped member; spring bias means attached to the bight portion of the U-shaped bolt member and to the base of the device so that when said U-shaped member pivots away from said spring bias means and against the tension of the spring bias means, tension is put on said U-shaped member without having the spring bias means stretch over at least one of the arms of said U-shaped member and creating a safety hazard; the arms of said U-shaped bolt member being offset from the arms of the U-shaped member along the longitudinal axis of the base of the U-shaped member.
Claim 2
Dependent Claim
168 words
An exercise device comprising a base; a generally U-shaped member having arms and a base pivotally connected to the base of the device; a U-shaped bolt means having spaced arms fixedly attached directly to the base of the U-shaped member; a plane including the spaced arms of the U-shaped bolt member forming an angle of less than 90° with a plane passing through the arms of the U-shaped member; spring bias means attached to the bight portion of the U-shaped bolt member and to the base of the device so that when said U-shaped member pivots away from said spring bias means and against the tension of the spring bias means, tension is put on said U-shaped member without having the spring bias means stretch over at least one of the arms of said U-shaped member and creating a safety hazard; the arms of said U-shaped bolt member being offset from the arms of the U-shaped member along the longitudinal axis of the base of the U-shaped member.
Claim 3
Dependent Claim
25 words
The device of claim 1 additionally including at least one guide member attached to said base of the device wherein said U-shaped member pivotally lodges.
Claim 4
Dependent Claim
33 words
The device of claim 2 having two guide members connected to said base of the device essentially in a parallel relationship, the base of said U-shaped member pivotally lodges in each guide member.
Claim 5
Dependent Claim
48 words
The devide of claim 3 additionally including a spring means connection rod which connects with the two guide members on the U-shaped bolt member side of said U-shaped member when the last mentioned member is substantially vertical, said spring bias means connects with said spring means connection rod.
Claim 6
Dependent Claim
16 words
The device of claim 4 wherein said spring bias means comprises a plurality of coil springs.
Claim 7
Dependent Claim
13 words
The device of claim 5 wherein said guide members are angle iron members.
Claim 8
Dependent Claim
13 words
The device of claim 6 wherein said device including said base is portable.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-07-29 | 1984-01-28 | 1984-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-07-29 | 1988-01-28 | 1988-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-07-29 | 1992-01-28 | 1992-07-29 | $7700.00 | Window Closed / Lapsed |