Electrically conductive chair support with sliding bushing

Details Electrically conductive chair support with sliding bushing Electrically conductive chair support with sliding bushing

1989-03-27

1990-10-16

Pellinen, A. D.

Electricity: electrical systems and devices

Discharging or preventing accumulation of electric charge

Specific conduction means or dissipator

361212, 297217, 297345, 384 9, 384277, 439 13, 439620, H05F 300, H01R 3900, A47C 100

Patent

active

049640151

ABSTRACT:
A chair for conducting the electrostatic charge of an occupant to the floor on which the chair rests, with the chair seat carried on a support unit which permits rotation of the seat and adjustment of the height of the seat above the floor. The support unit includes an outer sleeve and an inner sleeve moving vertically relative to the outer sleeve, and an electrical resistor connected between the inner and outer sleeves and in sliding contact with at least one of the sleeves, typically by means of a spring finger strip mounted in a groove of a bushing or collar.

REFERENCES:
patent: 3271723 (1966-09-01), Willing
patent: 4444445 (1984-04-01), Davies et al.
patent: 4513347 (1985-04-01), Wilcox et al.
patent: 4625257 (1986-11-01), Lissner
patent: 4747011 (1988-05-01), Lissner

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