Patent US3711099A successfully refreshed from Google Patents.
Patent US4722356A successfully refreshed from Google Patents.
US4722356A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Knee pad attachment for invalid walker
Assignee: Individual
•
Filing: 1986-09-08
•
Granted: 1988-02-02
•
Expires: 2006-09-08
Abstract
Abstract An attachment for an invalid walker that provides an adjustable padded support for the user's knee. The attachment has easily adapted hook elements for ready attachment to and detachment from conventional walkers. Provision is made for both vertical and angular position selectivity, and the support for the pad enables reversal of the pad supporting post so as to increase the versatility of the attachment.
Inventors
- 👤 Carol C. Rehder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:58
CPC Classifications
A; A61; A61H; A61H3/00; A61H2003/005
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
123 words
A knee pad attachment for use with an invalid walker of the type including a pair of front legs, a pair of rear legs and a horizontal cross bar spanning and interconnecting the front legs and spaced above the ground level on which the walker is used, the improvement residing in an adjustable knee-bearing attachment comprising bracket means having vertically spaced upper and lower attaching means for engaging vertically spaced apart portions of the front legs, a support fixed to the bracket means and providing a bearing on a vertical axis, a post vertically slidably received in the bearing, a knee pad carried by the post, and means cooperative between the post and support for selectively fixing the elevated position of the post.
Claim 2
Dependent Claim
123 words
A knee pad attachment for use with an invalid walker of the type including a pair of front legs, a pair of rear legs and a horizontal cross bar spanning and interconnecting the front legs and spaced above the ground level on which the walker is used, the improvement residing in an adjustable knee-bearing attachment comprising bracket means having vertically spaced upper and lower attaching means for engaging vertically spaced apart portions of the front legs, a support fixed to the bracket means and providing a bearing on a vertical axis, a post vertically slidably received in the bearing, a knee pad carried by the post, and means cooperative between the post and support for selectively fixing the elevated position of the post.
Claim 3
Dependent Claim
40 words
The improvement according to claim 1, in which the post is also angularly adjustable about the axis of the bearing means and the means cooperative between the post and support also serves to fix the post in selected angular positions.
Claim 4
Dependent Claim
32 words
The improvement according to claim 1, including a horizontal arm rigid with one end of the post and projecting rearwardly from the post and the knee pad is mounted on the arm.
Claim 5
Dependent Claim
55 words
The improvement according to claim 3, in which the post is selectively invertable in the bearing to dispose the arm in either an upper position or a lower position, and the pad is selectively invertable on the arm so as to dispose the upper surface of the pad upwardly in either position of the post.
Claim 6
Dependent Claim
32 words
The improvement according to claim 4, in which the arm is of non-circular section and the pad has sleeve of like section slidably fitting the arm for enabling inversion of the pad.
Claim 7
Dependent Claim
45 words
The improvement according to claim 1, in which the upper attachment means includes hook-like elements for engaging and hooking around the front legs from the front and the lower attachment means includes hook-like elements for engaging and hooking around the front legs from the rear.
Claim 8
Dependent Claim
16 words
The improvement according to claim 6, in which the bracket means further engages the horizontal bar.
Claim 9
Dependent Claim
55 words
The improvement according to claim 1, in which the bracket comprises a pair of laterally spaced apart, upright members, the upper and lower attaching means comprise, respectively, upper and lower cross members rigidly cross-connecting the upright members and the post support means spans and interconnects the upright members intermediate the upper and lower cross members.
Claim 10
Dependent Claim
57 words
The improvement according to claim 8, in which the upper attaching means comprises elements respectively at opposite ends of the upper cross member and respectively engaging the front legs of the walker, and the lower attaching means comprises elements respectively at opposite ends of the lower cross member and respectively engaging the front legs of the walker.
Claim 11
Dependent Claim
31 words
The improvement according to claim 9, in which the upper elements hook around the front legs from the front and the lower elements hook around the front legs from the rear.
Claim 12
Dependent Claim
40 words
The improvement according to claim 1, in which the support means is open at its upper and lower ends and the post is reversible end for end for selective insertion into the upper or lower end of the support means.
References Cited (Backward Citations)
US78472A
Cited
GB189606220A
Cited
US2258920A
Cited
US2391284A
Cited
FR1033585A
Cited
US2897013A
Cited
US3046072A
Cited
FR1368924A
Cited
US3392801A
Cited
US3461884A
Cited
US3596668A
Cited
US4004393A
Cited
US4381791A
Cited
US4449750A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-02-01 | 1991-08-03 | 1992-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-02-01 | 1995-08-03 | 1996-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-02-01 | 1999-08-03 | 2000-02-02 | $7700.00 | Window Closed / Lapsed |