Chair having a base configuration enabling selective enabling st

Details Chair having a base configuration enabling selective enabling st Chair having a base configuration enabling selective enabling st

1987-03-12

1988-08-09

Zugel, Francis K.

Chairs and seats

Movable bottom

Tiltable

297DIG4, 297130, A47C 1500

Patent

active

047623659

ABSTRACT:
A chair comprising a seat (12,19) having an upstanding backrest (11,20) and a depending leg structure (13,14), with the leg structure terminating in front and rear friction-producing formations (17,18) normally engaged with the ground in a stable disposition for the chair, and the chair additionally having a roller assembly (22,23) in a configuration which extends rearwardly of and across the chair, and which is elevated from the ground with a front-to-rear upward inclination in the normal disposition, whereby the chair can adopt a stable mobile disposition by rearward tilting to engage the roller elements with the ground.

REFERENCES:
patent: 1303994 (1919-05-01), Ulmann
patent: 1913295 (1933-06-01), Schreck
patent: 1983206 (1934-12-01), Witzel
patent: 2065233 (1936-12-01), Mallett
patent: 2113346 (1938-04-01), Heath
patent: 2354845 (1944-08-01), Thornton
patent: 2700573 (1955-01-01), Nordgard
patent: 2719572 (1955-10-01), Goldberg
patent: 2722967 (1955-11-01), Reinholz
patent: 3259432 (1966-07-01), Jackson
patent: 4098521 (1978-07-01), Ferguson et al.

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