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US3799158A Expired / Lapsed US ⏱️ 0.0 years remaining

Knee brace

Assignee: Individual
•
Filing: 1971-10-06
•
Granted: 1974-03-26
•
Expires: 1991-10-06
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Abstract

Abstract A knee brace having perforated upper and lower members coated with a soft plastic material and adapted to take the form of and to be secured to the leg of a user above and below the knee. A semi-ball joint attaches the upper and lower members and provides free pivotal rotation while restricting lateral rotation. Reinforcing ribs are formed on the upper and lower members to provide rigidity along a line parallel to the leg.

Inventors

  • 👤 H Gardner

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-22 22:02
CPC Classifications
A; A61; A61F; A61F5/00; A61F5/01; A61F5/0102; A61F5/0123; A61F5/0125; Y; Y10; Y10S; Y10S128/00; Y10S128/14

Claims Analysis

Total Claims: 3
Claim 1
Independent Claim 235 words
A knee brace comprising upper and lower members adapted to snugly fit on a side of a person''s leg above and below the knee, respectively, each of said members having laterally extending portions at opposite sides thereof, said members and their laterally extending portions being curved so as to generally define a semicircle in cross section, whereby when said brace is worn, said lateral portions extend across the front and rear of the wearer''s leg above and below the knee, said members being constructed of a malleable metallic material so as to be readily deformable to be shaped to the leg of the wearer, a soft plastic coating covering said metallic material, a plurality of perforations in each of said members of sufficient size to permit the wearer''s skin to protrude therethrough and at the same time to enhance the deformability of said members, and means pivotally interconnecting said members to each other, said pivotal means comprising semispherical-shaped overlapping portions on said upper and lower members, a semi-spherical washer formed of a self-lubricating material positioned between said overlapping portions, said overlapping portions and said washer having aligned, centrally located openings, a semi-spherical member overlying the outermost semi-spherical portion and having a centrally positioned threaded stud extending inwardly through said openings, and a threaded semi-spherical inner member formed of self-lubricating material threadedly engaging said stud to maintain said overlapping portions and said washer in assembled relation.
Claim 2
Dependent Claim 235 words
A knee brace comprising upper and lower members adapted to snugly fit on a side of a person''s leg above and below the knee, respectively, each of said members having laterally extending portions at opposite sides thereof, said members and their laterally extending portions being curved so as to generally define a semicircle in cross section, whereby when said brace is worn, said lateral portions extend across the front and rear of the wearer''s leg above and below the knee, said members being constructed of a malleable metallic material so as to be readily deformable to be shaped to the leg of the wearer, a soft plastic coating covering said metallic material, a plurality of perforations in each of said members of sufficient size to permit the wearer''s skin to protrude therethrough and at the same time to enhance the deformability of said members, and means pivotally interconnecting said members to each other, said pivotal means comprising semispherical-shaped overlapping portions on said upper and lower members, a semi-spherical washer formed of a self-lubricating material positioned between said overlapping portions, said overlapping portions and said washer having aligned, centrally located openings, a semi-spherical member overlying the outermost semi-spherical portion and having a centrally positioned threaded stud extending inwardly through said openings, and a threaded semi-spherical inner member formed of self-lubricating material threadedly engaging said stud to maintain said overlapping portions and said washer in assembled relation.
Claim 3
Dependent Claim 33 words
The knee brace of claim 1 further characterized in that each of said members has an imperforate ribbed portion extending from top to bottom thereof at substantially the central portion of said members.

References Cited (Backward Citations)

US412213A Cited
US621366A Cited
US859962A Cited
US1336695A Cited
US1964694A Cited
US2532955A Cited
FR1286288A Cited
US3350719A Cited
US3528412A Cited
US3575166A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-03-25 1977-09-24 1978-03-26 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-03-25 1981-09-24 1982-03-26 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-03-25 1985-09-24 1986-03-26 $7700.00 Window Closed / Lapsed

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