Chair for dental patients

Details Chair for dental patients Chair for dental patients

1978-06-02

1981-06-16

Zugel, Francis K.

Chairs and seats

Movable bottom

Tiltable

297421, A61G 1500

Patent

active

RE0306487

ABSTRACT:
A chair for dental patients has a lower portion and an upper portion including a swingable back and a seat movable when the back is swung. The seat is connected at its rear end by a hinge with the lower end of the back. The invention is particularly characterized in that the seat is mounted upon the lower portion so as to be movable in the longitudinal direction of the chair, while the back is guided over a rigid guide which is connected with the lower portion and the back. Means are provided in the part of the seat free from the hinge between it and the lower portion which are operable when the back is swung to tip the seat about a horizontal axis toward the back.

REFERENCES:
patent: 454912 (1891-06-01), Lockstaedt
patent: 2016133 (1935-10-01), Chandler
patent: 2479175 (1949-08-01), McArthur
patent: 2497395 (1950-02-01), Cramer
patent: 2629425 (1953-02-01), James
patent: 2633181 (1953-03-01), Bell
patent: 2677412 (1954-05-01), Thomas
patent: 2746523 (1956-05-01), de la Cuesta
patent: 3138805 (1964-06-01), Piazza
patent: 3381997 (1968-05-01), Fritz et al.
patent: 3427072 (1969-02-01), Hale
patent: 3578379 (1971-05-01), Taylor et al.
patent: 3719391 (1973-03-01), Neri

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