Adjustable standard for swivel chair

Details Adjustable standard for swivel chair Adjustable standard for swivel chair

1976-08-16

1977-05-31

Foss, J. Franklin

Supports

Stand

Standard type

108147, F16M 1100, F16M 1300

Patent

active

040265099

ABSTRACT:
A supporting spindle for a chair is disclosed which can be shifted from a mode in which the height of the seat is adjusted by rotating the seat while the seat is occupied to a mode in which the seat can be rotated in either direction without effecting any change in vertical position when the seat is occupied. The change in mode is effected by the release of a lock when the spindle is downwardly telescoped against the bias of a spring by the weight of the seat's occupant.

REFERENCES:
patent: 2702075 (1955-02-01), Richards
patent: 3164357 (1965-01-01), Hage et al.
patent: 3386697 (1968-06-01), Helms
patent: 3391893 (1968-07-01), Doerner
patent: 3599924 (1971-08-01), Schmidgall
patent: 3727871 (1973-04-01), Harper
patent: 3778014 (1973-12-01), Driscoll et al.
patent: 3799485 (1974-03-01), Wolters
patent: 3799486 (1974-03-01), Mohr et al.
patent: 3870270 (1975-03-01), Holtz
patent: 3870271 (1975-03-01), Bowman

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