Lifting apparatus for a seating structure

Details Lifting apparatus for a seating structure Lifting apparatus for a seating structure

1986-11-06

1988-11-22

McCall, James T.

Chairs and seats

Movable bottom

Tiltable

297DIG10, 297347, A47C 102

Patent

active

047861070

ABSTRACT:
An apparatus for elevating and lowering a freestanding seating structure, such as a house chair, recliner, or sofa. The apparatus is comprised of a base, an elevator assembly, a power assembly connected between the base and the elevator assembly, and a control assembly. The elevator assembly releasably receives, supports, elevates and lowers the seating structure. The power assembly provides power and supportingly moves the elevator assembly. The control assembly controls the power assembly and the position of the elevator assembly relative to the base. The invention also includes riser arms which are pivotally connected between the base and the elevator assembly for structurally supporting and stabilizing the elevator assembly.

REFERENCES:
patent: 2821242 (1958-01-01), Manegold
patent: 2940769 (1960-06-01), Taylor
patent: 3006594 (1961-10-01), Gruendler
patent: 3123400 (1964-03-01), Paulson
patent: 3138402 (1964-06-01), Heyl, Jr. et al.
patent: 3472488 (1969-10-01), Naughton
patent: 3596982 (1971-08-01), Grams
patent: 3765720 (1979-10-01), Sakai
patent: 3865347 (1975-02-01), Pase
patent: 4083599 (1978-04-01), Gaffney
patent: 4448382 (1984-05-01), Melone
patent: 4541134 (1985-09-01), Black et al.

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