Rear suspension for wheelchair

Land vehicles – Wheeled – Occupant propelled type

Reexamination Certificate

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Details

C280S250100, C280S283000, C297SDIG010

Reexamination Certificate

active

07032917

ABSTRACT:
A shock absorbing suspension for the large rear wheels of a wheelchair is disclosed. A fork element is hinged at one end to a clamping member which attaches to a horizontal frame member of the wheelchair. A cylindrical solid polymer shock absorber cushions the movement of the fork element toward the clamping member. The free end of the fork element includes an axleway for the axle of a large wheelchair wheel. The movement of the fork element relative to the clamping member is limited by abutting surfaces on the fork element and the clamping member.

REFERENCES:
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patent: 4078817 (1978-03-01), Ferguson et al.
patent: 4455031 (1984-06-01), Hosaka
patent: 4861056 (1989-08-01), Duffy et al.
patent: 5727802 (1998-03-01), Garven et al.
patent: 5851019 (1998-12-01), Gill et al.
patent: 6131679 (2000-10-01), Pulver et al.
patent: 6161856 (2000-12-01), Peterson
patent: 6425597 (2002-07-01), Peterson

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