Rotatable seat

Details Rotatable seat Rotatable seat

1994-03-02

1995-08-15

Cranmer, Laurie K.

Chairs and seats

Movable bottom

Bottom and back movable as a unit

297240, 29725612, 297337, 248349, A47C 300, A47C 1500

Patent

active

054413290

ABSTRACT:
Pivot-mounted on a bottom plate (12) is a top plate (14) which supports an upholstery pad (16), the latter being secured by a retaining ring (18) around the circumference of said top plate (14). The top plate (14) has an outer rim with a polygonal contour so that the retaining ring (18) only engages under said top plate (14) at the polygon corners. This gives rise to a number of clamping zones arranged at intervals around the circumference, between which there are permanent cavities. The retaining ring (18) can thus be easily removed, by local deformation, from the top plate (14) to enable the rotatable seat (10) to be cleaned.

REFERENCES:
patent: 3232662 (1966-02-01), Graves
patent: 4034947 (1977-07-01), Geisel
patent: 4969290 (1990-11-01), Skoretz
patent: 5000513 (1991-03-01), Schmidt
patent: 5149043 (1992-09-01), Grundmann

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