Supports – Stand – Understructure
Patent
1994-02-14
1995-08-01
Chin-Shue, Alvin C.
Supports
Stand
Understructure
248166, 248188, 403 91, F16M 1138
Patent
active
054374251
ABSTRACT:
A folding stand for an office chair stand includes an annular frame to hold the upright shaft of an office chair, a plurality of radial lugs horizontally spaced around the annular frame, and a plurality of legs respectively hinged to the radial lugs and supported on a respective wheel assembly and turned between a working position in line with the respective lug and a collapsed position perpendicular to the respective lug, and retainer springs respectively retained in either leg to lock the respective leg in the working position or the collapsed position.
REFERENCES:
patent: 2653000 (1953-09-01), Cadwell et al.
patent: 3417952 (1968-12-01), Bieschke
patent: 3479973 (1969-11-01), Bartlett et al.
patent: 4010922 (1977-03-01), Heller et al.
patent: 4036462 (1977-07-01), Sheftel
patent: 4053129 (1977-10-01), Graff
Chan Korie H.
Chin-Shue Alvin C.
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