Chairs and seats – Bottom or back – Framework
Patent
1991-10-01
1993-01-26
Aschenbrenner, Peter A.
Chairs and seats
Bottom or back
Framework
297460, 2972841, 29728411, A47C 702
Patent
active
051817640
ABSTRACT:
A pressure and fatigue reducing seat provided as part of a full chair, or alternatively as part of a portable seat apparatus, and adapted to support a user's body so as to eliminate undesirable pressure to parts of the user's body including the spine. The seat portion cooperates with a back support portion to normally and comfortably maintain an erect sitting posture. The seat portion includes a pair of spaced-apart members for supporting the user's buttocks, and an elongated member for supporting the back of the user's thighs. The back support portion includes a pair of lower support members which contact the user's back at spaced-apart points in the posterior pelvic area, and may also include a pair of upper support members which contact the user's back at spaced apart points in the thoracic area. The portable seat apparatus may be placed on any existing chair or seat, and may be conveniently transported and stored.
REFERENCES:
patent: 135973 (1873-02-01), Doremus
patent: 1527754 (1925-02-01), Simon
patent: 4399572 (1983-08-01), Johansson
patent: 4911502 (1990-03-01), Gorman
patent: 5018790 (1991-05-01), Jay
patent: 5024485 (1991-06-01), Berg et al.
patent: 5052755 (1991-10-01), Wiener
Aschenbrenner Peter A.
Burt Pamela S.
Carrier Joseph P.
Weiner Irving M.
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