Patent US4606542A successfully refreshed from Google Patents.
US4606542A
Expired / Lapsed
US
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Limb muscle exercising
Assignee: Individual
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Filing: 1984-10-30
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Granted: 1986-08-19
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Expires: 2004-10-30
Abstract
Abstract A limb exerciser, such as for a leg, includes a brace hinged at the middle with upper padded members for snugly engaging the upper portion of a limb and lower padded members for snugly engaging the lower portion of a limb. Elastic hook-and-loop fasteners surround the members and the limb to firmly secure the members to the limb. A U-shaped portion extends above the center of the hinge and carries fulcrum assemblies on each leg of the U over which a resilient member rides. The ends of the resilient member are attached to upper studs at the far ends of the upper and lower assemblies. A second pair of resilient members may be connected between lower studs at the far end of each support assembly.
Inventors
- 👤 David Segal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:41
CPC Classifications
A; A63; A63B; A63B21/00; A63B21/02; A63B21/055; A61; A61F; A61F5/00; A61F5/01; A61F5/0102; A61F5/0123; A61F5/0125; A63B21/40; A63B21/4001; A63B21/4011; A63B21/4017; A63B21/4023; A63B21/4025; A63B23/00; A63B23/035; A63B23/04; A63B23/0494; A61F2005/0132; A61F2005/0179; A63B21/00058; A63B21/00061; A63B21/023; A63B21/04; A63B21/0407; A63B21/0421; A63B21/0552; A63B21/0555; A63B21/0557; A63B2208/00; A63B2208/02; A63B2208/0204; A63B2208/0228
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
148 words
Limb exerising apparatus comprising, upper means for snugly engaging the upper portion of a limb, lower means for snugly engaging the lower portion of a limb seprated from the limb upper portion by a joint pivotable about a joint axis, means for hingeably attaching said upper means to said lower means about a hinge axis substantially coinciding with said joint axis, and resilient elastomeric means in tension connected between said upper means and said lower means for exerting a torque about the axis of said means for hingeably attaching against which limb muscles may work when the upper portion of a limb is secured to said upper means and the lower portion of said limb is secured to said lower means and said limb is extended and contracted about said joint and for allowing movement against said tension between said upper and lower portions while exercising said limb.
Claim 2
Dependent Claim
148 words
Limb exerising apparatus comprising, upper means for snugly engaging the upper portion of a limb, lower means for snugly engaging the lower portion of a limb seprated from the limb upper portion by a joint pivotable about a joint axis, means for hingeably attaching said upper means to said lower means about a hinge axis substantially coinciding with said joint axis, and resilient elastomeric means in tension connected between said upper means and said lower means for exerting a torque about the axis of said means for hingeably attaching against which limb muscles may work when the upper portion of a limb is secured to said upper means and the lower portion of said limb is secured to said lower means and said limb is extended and contracted about said joint and for allowing movement against said tension between said upper and lower portions while exercising said limb.
Claim 3
Dependent Claim
45 words
Limb exercising apparatus in accordance with claim 1 and further comprising, fulcrum means above said hinge axis for receiving an elastic member comprising said resilient means, said elastic member being connected between said upper means and said lower means and extended over said fulcrum means.
Claim 4
Dependent Claim
29 words
Limb exercising apparatus in accordance with claim 2 wherein said upper means and said lower means have studs means to which the ends of said resilient member are attached.
Claim 5
Dependent Claim
42 words
Limb exercising apparatus in accordance with claim 3 wherein said stud means comprise upper and lower stud means, said lower stud means being for receiving a resilient member comprising said resilient means so that extending said limb stretches the latter resilient member.
Claim 6
Dependent Claim
99 words
Limb exercising apparatus in accordance with claim 1 wherein said upper and lower limb portions form an acute angle with vertex on said joint axis when said limb is contracted embracing the inside of said joint and further comprising, fulcrum means outside said acute angle for receiving an elastic member comprising said resilient means for providing a tensile force tending to move said limb to the extended position while allowing said limb to move toward the contracted position while exercising said limb by moving said limb portions about said joint axis in a sector embraced by said acute angle.
Claim 7
Dependent Claim
27 words
Limb exercising apparatus in accordance with claim 5 wherein said fulcrum means comprises a member of adjustable width for accommodating limbs within a substantial range of widths.
References Cited (Backward Citations)
DE295632C
Cited
US3976057A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-08-18 | 1990-02-17 | 1990-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-08-18 | 1994-02-17 | 1994-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-08-18 | 1998-02-17 | 1998-08-19 | $7700.00 | Window Closed / Lapsed |