US5046726A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Exerciser
Assignee: Verimark Close Corp
•
Filing: 1990-02-14
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Granted: 1991-09-10
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Expires: 2010-02-14
Abstract
Abstract An exerciser comprises a tube, a spring in the tube, a plunger reciprocable in the tube, handles on the plunger and transverse supports extending from the bottom of the tube for comfortably resting against the thighs or in the lap of a user. Stomach muscles are exercised by grasping the handles with the transverse supports on the thighs and applying a pumping action to the plunger.
Inventors
- 👤 Willem J. Van Straaten
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:14
CPC Classifications
A; A63; A63B; A63B21/00; A63B21/02; A63B21/05; A63B21/40; A63B21/4041; A63B21/4045; A63B23/00; A63B23/035; A63B23/03516; A63B23/03525; A63B23/12
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
247 words
An exercising device comprising: a strut comprising first and second telescoping members, the first member having a first end and a second end, said second member arranged telescopically with the first member, the second member being of tubular form with an open first end and a closed second end, the first end of the first member being axially slidable within the second member and being capable of withdrawal through the first end of the second member, the first and second members including first and second transverse elements, respectively, the first transverse element extending transversely across the second end of the first member, the second transverse element extending transversely across the second end of the second member, one of the first and second elements defining handles at opposite ends thereof, and the other of the first and second elements having padded ends for resting comfortably against the thighs or lap of a user, a compression spring removably located in the second member between the first end of the first member and the second end of the second member, whereby axial movement of the first member into the second member compresses the spring; and an elastic cord interconnecting the first and second members for yieldably biasing the first and second members together in their telescopic relationship, the elastic cord being elastically stretchable sufficiently to permit the first end of the first member to be removed from the first end of the second member to permit replacement of the spring.
Claim 2
Dependent Claim
247 words
An exercising device comprising: a strut comprising first and second telescoping members, the first member having a first end and a second end, said second member arranged telescopically with the first member, the second member being of tubular form with an open first end and a closed second end, the first end of the first member being axially slidable within the second member and being capable of withdrawal through the first end of the second member, the first and second members including first and second transverse elements, respectively, the first transverse element extending transversely across the second end of the first member, the second transverse element extending transversely across the second end of the second member, one of the first and second elements defining handles at opposite ends thereof, and the other of the first and second elements having padded ends for resting comfortably against the thighs or lap of a user, a compression spring removably located in the second member between the first end of the first member and the second end of the second member, whereby axial movement of the first member into the second member compresses the spring; and an elastic cord interconnecting the first and second members for yieldably biasing the first and second members together in their telescopic relationship, the elastic cord being elastically stretchable sufficiently to permit the first end of the first member to be removed from the first end of the second member to permit replacement of the spring.
Claim 3
Dependent Claim
23 words
An exercising device according to claim 1, wherein the elastic cord has opposite ends attached to the first and second transverse elements, respectively.
Claim 4
Dependent Claim
22 words
An exercising device according to claim 1, wherein the elastic band is situated to the outside of the first and second members.
Claim 5
Dependent Claim
38 words
An exercising device according to claim 1 including an additional spring having a different spring characteristic than the first-named spring and which is interchangeable with the first-named spring when the first member is removed from the second member.
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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) | 1994-09-09 | 1995-03-11 | 1995-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-09-09 | 1999-03-11 | 1999-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-09-09 | 2003-03-11 | 2003-09-10 | $7700.00 | Window Closed / Lapsed |