Water cushion and method of using the same

Details Water cushion and method of using the same Water cushion and method of using the same

1977-08-29

1978-09-26

Zugel, Francis K.

Beds

Bedsteads

Element or detail

5370, 297DIG3, A47C 2708

Patent

active

041158857

ABSTRACT:
A water cushion particularly suited for use in supporting a human body in a seated disposition in an automobile, wheel chair and the like with a greater degree of safety. The cushion includes a flexible envelope adapted to be filled with water including a first zone configured to receive in supporting relation the buttock of a seated person and having defined therein an unbaffled chamber, and a second zone for receiving in supporting relation the thighs of the person having defined therein a plurality of chambers arranged in mutual parallelism and communicating with the chamber of the first zone, whereby the rigidity of the second zone is enhanced as the pressure applied by the weight of the person is increased.

REFERENCES:
patent: 484367 (1892-10-01), Hicks
patent: 697279 (1902-04-01), Schmied
patent: 726164 (1903-04-01), Hogan et al.
patent: 1468072 (1923-09-01), Ogle
patent: 3112956 (1963-12-01), Schick et al.
patent: 3115647 (1963-12-01), Emery
patent: 3296635 (1967-01-01), O'Hanlan
patent: 3983587 (1976-10-01), Gorran

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