Structure of wheelchair that is convertible into push-cot

Details Structure of wheelchair that is convertible into push-cot Structure of wheelchair that is convertible into push-cot

2011-04-05

2011-04-05

Shriver, III, J. Allen (Department: 3618)

Land vehicles

Wheeled

Occupant propelled type

C280S657000

Reexamination Certificate

active

07918473

ABSTRACT:
A wheelchair is constructed to be convertible into a push-cot. The wheelchair includes a main chassis and front and rear chassis that are removably received in the main chassis and are extendable in frontward and rearward directions. A reclining back frame is rotatably mounted to the rear side of the main chassis and is in driving coupling with the rear chassis so that when the rear chassis is extended, the reclining back frame is moved from a substantially upright position to a horizontal position to convert the wheelchair to a push-cot.

REFERENCES:
patent: 3719390 (1973-03-01), Haney
patent: 4773494 (1988-09-01), Anderson
patent: 4813693 (1989-03-01), Lockard et al.
patent: 4989890 (1991-02-01), Lockard et al.
patent: 5294141 (1994-03-01), Mentessi et al.
patent: 5419571 (1995-05-01), Vaughan
patent: 7384058 (2008-06-01), Munsey et al.
patent: 7500689 (2009-03-01), Pasternak et al.
patent: 2003/0189317 (2003-10-01), Chen et al.

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