US5040787A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Auxiliary magnetic weights
Assignee: Individual
•
Filing: 1990-01-29
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Granted: 1991-08-20
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Expires: 2010-01-29
Abstract
Abstract An auxiliary weight system comprising a plurality of auxiliary weights of intermediate values. The auxiliary weights have magnets for releasably attaching the auxiliary weights to substantially any desired exercising device to permit variation of the weights employed by such device in substantially any desired manner.
Inventors
- 👤 Eric M. Brotman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:56
CPC Classifications
A; A63; A63B; A63B21/00; A63B21/06; A63B21/072; A63B21/0728; A63B21/00058; A63B21/00065; A63B2209/00; A63B2209/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
In combination with free weight exercise apparatus of the type including a plurality of generally disk-shaped weighted members of fixed weight values, each said weighted member presenting a generally vertical surface during use, said vertical surface having a portion subject to magnetic attraction, a plurality of incremental weights wherein each said incremental weight includes a magnet and a surface formed for engagement with said generally vertical surface, wherein the incremental weight of said plurality have a series of weight values beginning with a fraction of the smallest of said fixed weight value, and wherein each said magnet has a magnetic strength sufficient to maintain the respective incremental weight in engagement with said generally vertical surface during the movement encountered during use of said free weight exercise apparatus.
Claim 2
Dependent Claim
127 words
In combination with free weight exercise apparatus of the type including a plurality of generally disk-shaped weighted members of fixed weight values, each said weighted member presenting a generally vertical surface during use, said vertical surface having a portion subject to magnetic attraction, a plurality of incremental weights wherein each said incremental weight includes a magnet and a surface formed for engagement with said generally vertical surface, wherein the incremental weight of said plurality have a series of weight values beginning with a fraction of the smallest of said fixed weight value, and wherein each said magnet has a magnetic strength sufficient to maintain the respective incremental weight in engagement with said generally vertical surface during the movement encountered during use of said free weight exercise apparatus.
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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) | 1994-08-19 | 1995-02-18 | 1995-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-08-19 | 1999-02-18 | 1999-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-08-19 | 2003-02-18 | 2003-08-20 | $7700.00 | Window Closed / Lapsed |