Supports – Stand – Understructure
Patent
1993-10-21
1995-11-21
Foss, J. Franklin
Supports
Stand
Understructure
29734419, F16M 1120
Patent
active
054679516
ABSTRACT:
An ergonomically designed professional services chair baseplate that facilitates ease of operation for both the service provider and client. A narrow area is provided at the center section of the baseplate such that the baseplate does not protrude beyond the vertical projection of the edge of the chair. This narrow section is further sized and shaped to easily accommodate standard cleaning and buffing machine wheels. Enlarged areas are positioned fore and aft of the narrow section to provide stability to the chair. A sloped shoulder on each side of the aft enlarged areas may hold a chair controlling foot switch.
REFERENCES:
patent: D347065 (1994-05-01), Castellini
patent: 519884 (1894-05-01), Browne
patent: 562390 (1896-06-01), Gould
patent: 668321 (1901-02-01), Sonnex
patent: 1228434 (1917-06-01), Hedberg
patent: 1731461 (1929-10-01), Hansen
patent: 1999848 (1935-04-01), Ries
patent: 2741299 (1956-04-01), Bargen
patent: 3188136 (1965-06-01), Redfield
Foss J. Franklin
MDT Corporation
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