A - Human Necessities – 61 – G
Patent
A - Human Necessities
61
G
A61G 7/10 (2006.01) A47C 3/18 (2006.01) A47C 31/02 (2006.01)
Patent
CA 2126701
A top plate (12) with a padded cushion (18) is pivotably mounted on a bottom plate (16). The padded cushion (18) is fixed in position on the top plate (12) by an integral rigid retaining ring (20), with inner beading (34) of the retaining ring (20) extending in a clamping fashion beneath outer beading (26) of the top plate (12). An annular groove (22) close to the outer edge of the top plate (12) means that the remaining annular wall (24) with the marginal beading (26) is only connected to the top plate (12) via a thin bridge, said bridge constituting an ar- ticulation zone (28), so that, when the retaining ring (20) is lifted off, the annular wall (24) functions as a flexible tongue and can be moved elastically in- wards.
Marks & Clerk
Schmidt & Lenhardt Gmbh & Co. Ohg
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