US4691697A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Knee support
Assignee: Arveda LLC
•
Filing: 1985-04-05
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Granted: 1987-09-08
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Expires: 2005-04-05
Abstract
Abstract A prophylactic knee support(s) including a planar impact bar attached to upper and lower mounting bars. The upper and lower mounting bars are fastened to portions of the leg above and below the knee of the user by wraps encircling the appropriate leg portions. Shock absorbers and pressure plates are associated with the impact and mounting bars so as to absorb and dissipate forces resulting from blows directed on the impact bar. The absorption and dissipation diminishes the effect of the blow on the knee including the possibility of undesirable lateral shifting and/or twisting of the knee in response to said blow.
Inventors
- 👤 Stephen C. Arensdorf
- 👤 Lawrence T. Stromgren
- 👤 Noel Goudreau
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:02
CPC Classifications
A; A61; A61F; A61F5/00; A61F5/01; A61F5/0102; A61F5/0123; A61F2005/0132; A61F2005/0137; A61F2005/0165; Y; Y10; Y10S; Y10S2/00; Y10S2/908; Y10S2/91
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
262 words
A knee support for attachment to a leg of the user to protect the knee, said support comprising: a rigid impact bar having upper and lower ends; an upper mounting bar adapted to lie adjacent said leg above the knee; a lower mounting bar adapted to lie adjacent said leg below the knee; means pivotally connecting said upper end of the impact bar to said upper mounting bar, and pivotally connecting said lower end of the impact bar to said lower mounting upper pressure plate means on said upper mounting bar adapted to be secured to the user's leg above the knee; lower pressure plate means on said lower mounting bar adapted to be secured to the user's leg below the knee, whereby said impact bar may be positioned in laterally spaced, spanning relationship to the knee; shock-absorbing, anti-friction means between said upper and lower ends of the impact bar and the respective upper and lower mounting bars, comprising upper and lower bushing members interposed between said ends of the impact bar and the respective mounting bars at said pivotal connections; a ridge on said upper bushing member projecting therefrom and engageable with a front edge of said impact bar and said upper mounting bar upon movement thereof to a position selected to prevent further movement and hyperextension of the knee; and a ridge on said lower bushing member projecting therefrom and engageable with said front edge of the impact bar and said lower mounting bar upon movement thereof to a position selected to prevent further movement and hyperextension of the knee.
Claim 2
Dependent Claim
262 words
A knee support for attachment to a leg of the user to protect the knee, said support comprising: a rigid impact bar having upper and lower ends; an upper mounting bar adapted to lie adjacent said leg above the knee; a lower mounting bar adapted to lie adjacent said leg below the knee; means pivotally connecting said upper end of the impact bar to said upper mounting bar, and pivotally connecting said lower end of the impact bar to said lower mounting upper pressure plate means on said upper mounting bar adapted to be secured to the user's leg above the knee; lower pressure plate means on said lower mounting bar adapted to be secured to the user's leg below the knee, whereby said impact bar may be positioned in laterally spaced, spanning relationship to the knee; shock-absorbing, anti-friction means between said upper and lower ends of the impact bar and the respective upper and lower mounting bars, comprising upper and lower bushing members interposed between said ends of the impact bar and the respective mounting bars at said pivotal connections; a ridge on said upper bushing member projecting therefrom and engageable with a front edge of said impact bar and said upper mounting bar upon movement thereof to a position selected to prevent further movement and hyperextension of the knee; and a ridge on said lower bushing member projecting therefrom and engageable with said front edge of the impact bar and said lower mounting bar upon movement thereof to a position selected to prevent further movement and hyperextension of the knee.
Claim 3
Dependent Claim
34 words
The knee support as claimed in claim 1, wherein each of said bushing members has a flat, disk-like configuration, each of said ridges being rigid with a front edge of the associated bushing member.
Claim 4
Dependent Claim
42 words
The knee support as claimed in claim 2, wherein each of said ridges includes first and second ridge members projecting from opposed faces of the associated bushing member at its front edge engagement with said impact bar and the corresponding mounting bar.
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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) | 1990-09-07 | 1991-03-09 | 1991-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-09-07 | 1995-03-09 | 1995-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-09-07 | 1999-03-09 | 1999-09-08 | $7700.00 | Window Closed / Lapsed |