Hybrid watermattress having concave softsides

Details Hybrid watermattress having concave softsides Hybrid watermattress having concave softsides

1988-03-21

1989-01-24

Grosz, Alexander

Beds

Bedclothing

And means to facilitate changing thereof

5474, A47C 2708

Patent

active

047992778

ABSTRACT:
A hybrid watermattress has a compressible sidewall, a water fillable bladder, and a cover to envelope the bladder and the sidewall. The sidewall extends laterally and peripherally of the bladder, and in an uncompressed state, has a generally concave cross section that is complementary to the lateral panels of the bladder.

REFERENCES:
patent: 3742531 (1973-07-01), Alsbury et al.
patent: 4015299 (1977-04-01), Tinnel
patent: 4057862 (1977-11-01), LaBianco
patent: 4145780 (1979-03-01), Fogel
patent: 4186455 (1980-02-01), Fox et al.
patent: 4187566 (1980-02-01), Peterson
patent: 4197602 (1980-04-01), Johenning
patent: 4221013 (1980-09-01), Echevarria
patent: 4245361 (1981-01-01), Evanson
patent: 4571762 (1986-02-01), Rhoton et al.

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