Beds – Bedclothing – And means to facilitate changing thereof
Patent
1988-03-23
1989-05-02
Grosz, Alexander
Beds
Bedclothing
And means to facilitate changing thereof
5457, A47C 2708
Patent
active
048254851
ABSTRACT:
A stable water bed is made up of upper and lower layers adhered together around their edges to form sides which have an oval shape. A plurality of separating walls are adhered inside both layers by means of high frequency bonding. These walls are provided with small oval-shaped holes for slow and even flowing of the water in this bed. The ends of the separating walls terminate in the oval-shaped portions of the sides.
REFERENCES:
patent: 3286285 (1966-11-01), Harvey
patent: 3456270 (1969-07-01), Weinstein et al.
patent: 4241465 (1980-12-01), Yarimie et al.
patent: 4292702 (1981-10-01), Phillips
patent: 4348282 (1974-11-01), Viesturs
patent: 4371999 (1983-02-01), Reid
patent: 4611357 (1986-09-01), Chelin
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