Beds – Bedclothing – And means to facilitate changing thereof
Patent
1991-09-18
1993-06-29
Grosz, Alexander
Beds
Bedclothing
And means to facilitate changing thereof
5919, 5920, 5921, A47C 2708
Patent
active
052222624
ABSTRACT:
A waterbed mattress includes a watertight envelope having a top, a bottom, and sides, which envelope defines a cavity for water. Anti-wave material such as fiber or foam, or anti-wave structure such as hydraulic inserts, is disposed inside the watertight envelope. The anti-wave material or structure is secured to the top of the watertight envelope by a plurality of seals and is in fluid communication with the water cavity. The plurality of seals form a pattern which is visible from the exterior of the waterbed mattress. This gives the appearance of a quilted top to the mattress when fiber or foam is secured to the top of the envelope by the seals. In some embodiments, a lumbar support is included.
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patent: 4399575 (1983-08-01), Hall
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patent: 4656681 (1987-04-01), Alexander et al.
patent: 4751757 (1988-06-01), Moreno
patent: 4901386 (1990-02-01), Lane
patent: 4905331 (1990-03-01), Hochschild, III
patent: 5001792 (1991-03-01), Strobel
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