Patent US2538662A successfully refreshed from Google Patents.
US4287885A
Expired / Lapsed
US
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Knee brace with resilient pad surrounding patella
Assignee: SURGICAL APPLIANCE INDUSTRIES Inc
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Filing: 1979-12-06
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Granted: 1981-09-08
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Expires: 1999-12-06
Abstract
Abstract A knee brace including an elastic sleeve stretchable circumferentially, a flexible sheet non-stretchable in a circumferential direction secured to the interior of the sleeve configured and dimensioned to surround a substantial portion of the user's patella, and a resilient pad stretchable at least circumferentially secured to the flexible inelastic sheet. By reason of the inelastic characteristics of the flexible sheet to which the resilient elastic pads are mounted, the pads are not circumferentially displaced or dislocated from their normal position proximate the periphery of the patella when the knee is bent and the elastic sleeve stretches circumferentially. Thus, patella support and protection is maintained regardless of the extent of knee flexure.
Inventors
- 👤 Leslie T. Applegate
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:48
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/06; A61F13/061
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
157 words
An improved knee brace comprising: a generally cylindrical sleeve formed of elastic material stretchable in a circumferential direction and dimensioned to cover the leg area at the knee joint, said sleeve having a central front patella section located to be proximate a wearer's patella when said sleeve is positioned about the wearer's knee, a flexible sheet of material substantially inelastic in a circumferential direction fixedly secured to the interior of said sleeve, said sheet configured and dimensioned to surround a substantial portion of said patella section of said sleeve, and a plurality of physically separate resilient pads secured to the interior surface of said sheet at spaced locations in a generally circular pattern to surround a substantial portion of said patella section of said sleeve, said pads being restrained by said sheet against circumferential movement relative to said patella section as said sleeve stretches under forces exerted thereon by the knee of a wearer thereof when bent.
Claim 2
Dependent Claim
157 words
An improved knee brace comprising: a generally cylindrical sleeve formed of elastic material stretchable in a circumferential direction and dimensioned to cover the leg area at the knee joint, said sleeve having a central front patella section located to be proximate a wearer's patella when said sleeve is positioned about the wearer's knee, a flexible sheet of material substantially inelastic in a circumferential direction fixedly secured to the interior of said sleeve, said sheet configured and dimensioned to surround a substantial portion of said patella section of said sleeve, and a plurality of physically separate resilient pads secured to the interior surface of said sheet at spaced locations in a generally circular pattern to surround a substantial portion of said patella section of said sleeve, said pads being restrained by said sheet against circumferential movement relative to said patella section as said sleeve stretches under forces exerted thereon by the knee of a wearer thereof when bent.
Claim 3
Dependent Claim
39 words
The improved knee brace of claim 1 wherein said flexible sheet is substantially inelastic in a longitudinal direction to restrain said pads against longitudinal movement relative to said patella section of said sleeve when the wearer's knee is bent.
Claim 4
Dependent Claim
17 words
The improved knee brace of claim 2 wherein said sleeve is substantially inelastic in a longitudinal direction.
Claim 5
Dependent Claim
17 words
The improved knee brace of claim 1 wherein said sleeve is substantially inelastic in a longitudinal direction.
Claim 6
Dependent Claim
36 words
The improved knee brace of claim 1 wherein said sheet is fabricated of Velcro fastening material and said pads have cooperating Velcro fastening means for securing said pads to said Velcro sheet at selectively variable positions.
Claim 7
Dependent Claim
171 words
An improved knee brace comprising: a generally cylindrical sleeve formed of elastic material stretchable in a circumferential direction and dimensioned to cover the leg area at the knee joint, said sleeve having a central front patella section located to be proximate a wearer's patella when said sleeve is positioned about the wearer's knee, a flexible sheet of material substantially inelastic in a circumferential direction fixedly secured to the interior of said sleeve, said sheet configured and dimensioned to completely surround said patella section of said sleeve, and a resilient pad secured to the interior surface of said sheet, said pad configured and dimensioned to surround a substantial portion of said patella section of said sleeve, said pad being stretchable in a circumferential direction to at least approximately substantially the same extent as said sleeve, said pad being restrained by said sheet against circumferential movement relative to said patella section of said sleeve as said sleeve stretches under forces exerted thereon by the knee of a wearer thereof when it is bent.
Claim 8
Dependent Claim
171 words
An improved knee brace comprising: a generally cylindrical sleeve formed of elastic material stretchable in a circumferential direction and dimensioned to cover the leg area at the knee joint, said sleeve having a central front patella section located to be proximate a wearer's patella when said sleeve is positioned about the wearer's knee, a flexible sheet of material substantially inelastic in a circumferential direction fixedly secured to the interior of said sleeve, said sheet configured and dimensioned to completely surround said patella section of said sleeve, and a resilient pad secured to the interior surface of said sheet, said pad configured and dimensioned to surround a substantial portion of said patella section of said sleeve, said pad being stretchable in a circumferential direction to at least approximately substantially the same extent as said sleeve, said pad being restrained by said sheet against circumferential movement relative to said patella section of said sleeve as said sleeve stretches under forces exerted thereon by the knee of a wearer thereof when it is bent.
Claim 9
Dependent Claim
81 words
The improved knee brace of claim 6 wherein said sleeve is stretchable in a longitudinal direction, said sheet is inelastic in a longitudinal direction, and said pad is stretchable in a longitudinal direction to at least approximately substantially the same extent as said sleeve, said pad being restrained by said sheet against longitudinal movement relative to said patella section of said sleeve as said sleeve stretches under forces exerted thereon by the knee of a wearer thereof when it is bent.
Claim 10
Dependent Claim
36 words
The improved knee brace of claim 6 wherein said sheet is fabricated of Velcro fastening material and said pad has cooperating Velcro fastening means for securing said pad to said Velcro sheet at selectively variable positions.
Claim 11
Dependent Claim
149 words
An improved knee brace comprising: a generally cylindrical sleeve formed of elastic material stretchable in a circumferential direction anddimensioned to cover the leg area at the knee joint, said sleeve having a central front patella section located to be proximate a wearer's patella when said sleeve is positioned about the wearer's knee, a flexible sheet of material substantially inelastic in a circumferential direction fixedly secured to the interior of said sleeve, said sheet configured and dimensioned to completely surround said patella section of said sleeve, and pad means secured to the interior surface of said sheet surrounding a substantial portion of said patella section of said sleeve, said pad means being restrained by said sheet against circumferential movement relative to said patella section of said sleeve as said sleeve stretches under forces exerted thereon by the knee of a wearer thereof when it is bent from a straightened position.
Claim 12
Dependent Claim
149 words
An improved knee brace comprising: a generally cylindrical sleeve formed of elastic material stretchable in a circumferential direction anddimensioned to cover the leg area at the knee joint, said sleeve having a central front patella section located to be proximate a wearer's patella when said sleeve is positioned about the wearer's knee, a flexible sheet of material substantially inelastic in a circumferential direction fixedly secured to the interior of said sleeve, said sheet configured and dimensioned to completely surround said patella section of said sleeve, and pad means secured to the interior surface of said sheet surrounding a substantial portion of said patella section of said sleeve, said pad means being restrained by said sheet against circumferential movement relative to said patella section of said sleeve as said sleeve stretches under forces exerted thereon by the knee of a wearer thereof when it is bent from a straightened position.
Claim 13
Dependent Claim
38 words
The improved knee brace of claim 9 wherein said sheet is fabricated of Velcro fastening material and said pad means have cooperating Velcro fastening means for securing said pad means to said Velcro sheet at selectively variable positions.
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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) | 1984-09-07 | 1985-03-09 | 1985-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-09-07 | 1989-03-09 | 1989-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-09-07 | 1993-03-09 | 1993-09-08 | $7700.00 | Window Closed / Lapsed |