Elevator chair

Details Elevator chair Elevator chair

1990-10-15

1992-03-10

Aschenbrenner, Peter A.

Chairs and seats

Movable bottom

Tiltable

297330, 297DIG10, A47C 102

Patent

active

050945084

ABSTRACT:
An elevator chair for assisting entry and exit including a vertically telescopic back frame raised and lowered by a motor driven vertical threaded screw and tube assembly. The back frame raises and lowers a rear portion of a seat and movement of the front of the seat is controlled by forward links that are positioned to raise the forward portion of the seat as the chair lifts.

REFERENCES:
patent: 3851917 (1974-12-01), Horstmann et al.
patent: 3925833 (1975-12-01), Hunter
patent: 4031576 (1977-06-01), Epstein
patent: 4249774 (1981-02-01), Andreasson
patent: 4545616 (1985-10-01), Booth
patent: 4616874 (1986-10-01), Dietsch et al.

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