Beds – Bedclothing – And means to facilitate changing thereof
Patent
1990-10-09
1991-10-29
Grosz, Alexander
Beds
Bedclothing
And means to facilitate changing thereof
5451, 297DIG8, A47C 2708
Patent
active
050603280
ABSTRACT:
A waterbed mattress includes a spring insert comprising a plurality of spring bellows units arranged in upright relation within the mattress. Each bellows unit has a top wall and pleated sidewall which is collapsible from a normal expanded height to a shortened compressed height wherein the internal volume of the bellows unit is substantially reduced. Each bellows unit furthermore has a bleeder opening through one wall so that a compression load exerted on the bellows unit through the mattress top wall is resisted by both spring action and hydraulic action of the bellows units. The bellows units may be confined within flexible covers defining secondary hydraulic chambers. The size, position and hydraulic characteristics may be varied for different degrees of support at different positions on the mattress.
REFERENCES:
patent: 3261037 (1966-07-01), Cermak et al.
patent: 3280410 (1966-10-01), Probst et al.
patent: 4109333 (1978-08-01), Zmiapovich
patent: 4120061 (1978-10-01), Clark
patent: 4218274 (1980-08-01), Mollura
patent: 4245362 (1981-01-01), Mueller
patent: 4245363 (1981-01-01), Callaway
patent: 4292701 (1981-10-01), Woychick
patent: 4328599 (1982-05-01), Mollura
patent: 4475257 (1984-10-01), Phillips
patent: 4551873 (1985-11-01), Hall
patent: 4574026 (1986-03-01), Winther
patent: 4663789 (1987-05-01), Smith
patent: 4701967 (1987-10-01), Strobel
patent: 4707872 (1987-11-01), Hessel
patent: 4715076 (1987-12-01), Fogel et al.
patent: 4750959 (1988-06-01), Johenning et al.
patent: 4864670 (1989-09-01), Woll et al.
patent: 4922563 (1990-05-01), Johenning et al.
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