Chair height limit stop

Details Chair height limit stop Chair height limit stop

1977-02-07

1978-05-02

Parsons, Jr., Marion

Supports

Stand

Standard type

F16M 1124

Patent

active

040870715

ABSTRACT:
Limit stop means for limiting vertical height adjustment of a swivel chair support comprising a spindle, a fixture on one end of the spindle for connection to a chair seat, the upper end of the spindle threaded and having a load supporting adjustment nut thereon, and a keyway along the threaded portion of the spindle terminating below the nut at a position spaced from the lower end of the spindle, the limit stop means comprising a resiliently deformable split ring washer having a key extending inwardly therefrom adapted by deformation for assembly with said chair support over the spindle to a position between said nut and the lower end of the keyway with said key in said keyway and separate retainer means for restraining said washer against deformation.

REFERENCES:
patent: 585435 (1897-06-01), Gilson
patent: 1217268 (1917-02-01), Bolens
patent: 1501180 (1924-07-01), Peters et al.
patent: 1711018 (1929-04-01), Ellis et al.
patent: 1779204 (1930-10-01), Andersen
patent: 2897022 (1959-07-01), Marola
patent: 3062253 (1962-11-01), Millheiser
patent: 3214204 (1965-10-01), Carter
patent: 3289726 (1966-12-01), Sauter
patent: 3391893 (1968-07-01), Doerner
patent: 3606234 (1971-09-01), Prescott

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