Chairs and seats – Movable bottom – Tiltable
Patent
1975-07-31
1976-04-06
Zugel, Francis K.
Chairs and seats
Movable bottom
Tiltable
297349, 297423, A61G 1500
Patent
active
039485595
ABSTRACT:
A chair of the type particularly adapted for use by dentists, ophthalmologists and the like but also useful for other purposes in which a back is pivoted relative to a seat and a leg rests extends outward from the seat. The seat with the back pivotally connected thereto is adapted to be moved about a vertical axis from a position in which the front to back axis of the seat is disposed in alignment with the longitudinal axis of the leg rest which projects laterally outward from one side of the base and a position in which said axis of the seat is transverse to said longitudinal axis of the leg rest in order to facilitate the seating of a person in the chair while the seat is in the latter position and then rotating the seat 90.degree. to permit the person to dispose his legs upon the leg rest which preferably is stationary relative to the base of the chair.
The seat also is pivoted at its rear end and mechanism actuated by the pivoting of the back between a substantially upright position and a rearwardly extending inclined position causes the front edge of the seat to be elevated above the rear edge and thus, effects a sloping condition of the seat upon the base of the chair to contribute to the comfort of an occupant, especially when in the supine position upon the chair with the back extending substantially rearwardly from the rear edge of the seat.
REFERENCES:
patent: 3245220 (1966-04-01), Wenger
patent: 3486789 (1969-12-01), Taylor
patent: 3661421 (1972-05-01), Johnson
patent: 3774965 (1973-11-01), Brandt
Hain Larry A.
Webb Ronald C.
Dentsply Research & Development Corporation
Zugel Francis K.
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