Device for controlling headrest of treatment equipment

Details Device for controlling headrest of treatment equipment Device for controlling headrest of treatment equipment

1984-11-21

1987-03-03

Dorner, Kenneth J.

Chairs and seats

Headrest

248409, 297410, A47C 110, A61G 1500

Patent

active

046471081

ABSTRACT:
A device for controlling a headrest of a treatment equipment to be used for dental and medical treatment. The device comprises an arcuate support shaft connected to said headrest with the center of radius of curvature of the shaft positioned above said backrest, a guide sheath provided inside the top of said backrest, said sheath having an arcuate guide groove slidably receiving said support shaft, a lock mechanism for locking said support shaft in a suitable position in said guide groove, and lock releasing mechanism for unlocking said support shaft.

REFERENCES:
patent: 1937254 (1933-11-01), Stoll
patent: 2016132 (1935-10-01), Bergslien
patent: 2171653 (1939-09-01), Heitmann
patent: 2740467 (1956-04-01), Page
patent: 3608965 (1971-09-01), Cziptschirsch et al.
patent: 4082354 (1978-04-01), Renner et al.
patent: 4256341 (1981-03-01), Goldner et al.

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