Chairs and seats – Straddle seat
Patent
1977-05-23
1978-08-29
McCall, James T.
Chairs and seats
Straddle seat
297330, A47C 102
Patent
active
041099583
ABSTRACT:
A medical treatment chair, e.g. a dental chair, having a seat portion, a back portion, and manually operable switches mounted on the back portion for electrically controlling the operation of parts of the chair, or medium equipment to be used on a patient on the chair. Mounting locations are provided on the back portion in which respective sets of switches are received. Each switch comprises an actuating element which is pivotable between end switching positions and a neutral position intermediate the end positions, and each actuating element has a convex surface which projects outwardly of the adjacent surface of the chair which surrounds a mounting location in which a set of switches is received. This provides for easy manual manipulation of the switches.
REFERENCES:
patent: 3225156 (1965-12-01), Sahbacker
patent: 3254163 (1966-05-01), Wanlass
patent: 3483337 (1969-12-01), Johnstone et al.
patent: 3578379 (1971-05-01), Taylor
patent: 3866973 (1975-02-01), Heubeck
patent: 3984146 (1976-10-01), Krestel
Kaltenbach & Voigt GmbH & Co.
McCall James T.
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