Tent – canopy – umbrella – or cane – Canes – sticks – crutches – and walking aids
Patent
1998-07-23
1999-05-18
Friedman, Carl D.
Tent, canopy, umbrella, or cane
Canes, sticks, crutches, and walking aids
135 66, 135 67, 297 5, 297 6, 297 7, 482 68, 482 66, A61H3/00
Patent
active
059041684
ABSTRACT:
A walker having an expandable seat adapted to accommodate users of varying body sizes to enter the walker and get in and out of the seat. The walker comprises a front cross bar having two tubular ends, and two side frames rotatably connected to each of the tubular ends of the front cross bar, so that the side frames can be rotated inward and outward with respect to the front cross bar. A telescopic upper crossbar is mounted between the side frames at the upper horizontal tubing for limiting the angular movement of the side frames when a desired position has been selected. The expandable seat includes a tubular rear end, to which a pair of seat support rods are slidably mounted. A bracket is rotatably attached to each of the sliding rods for engaging the side braces of the side frame when the seat is folded down in the horizontal position. The seat support rods can be moved in and out of the tubular rear end of the seat so that the brackets at the end thereof can be engaged with the side braces, as the distance between the rear legs is adjusted.
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patent: 3442276 (1969-05-01), Edwards et al.
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patent: 4643211 (1987-02-01), Morris et al.
patent: 4826240 (1989-05-01), Karpiuk
patent: 4946058 (1990-08-01), Stamm
patent: 5273063 (1993-12-01), Farr et al.
patent: 5785070 (1998-07-01), Block et al.
A Phi Dieu Tran
Friedman Carl D.
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