Mattress having an upper internal material-containing chamber

Details Mattress having an upper internal material-containing chamber Mattress having an upper internal material-containing chamber

1976-09-17

1978-01-17

Nunberg, Casmir A.

Beds

Bedsteads

Element or detail

5365, A47C 2708, B31F 700

Patent

active

040683354

ABSTRACT:
A water bed mattress for supporting an individual in an inclined position which is comprised of an upper sheet and a lower sheet and both of which are formed of a foldable, flexible plastic material. A continuous outer side wall extends between and is secured in operative relationship to the upper and lower sheets. A continuous panel is operatively secured to the upper sheet inwardly of the peripheral end margin of the upper sheet by means of a first continuous seal. This latter panel is also secured to the upper sheet at a point in close proximity to the peripheral margin thereof by a second continuous peripheral seal in order to form a material-containing chamber which is bounded by a portion of the upper sheet between the first and second seals. A liquid chamber is bounded by the lower sheet, the side wall and the remaining portion of the upper sheet and said panel. This material-containing chamber continuously extends around the periphery of the upper sheet so that the peripheral portion of the upper sheet is supported by material in the material-containing chamber. In a preferred aspect of the invention, the material-containing chamber is filled with air and the liquid chamber is filled with water. The peripheral side wall is actually formed by flaps which are downwardly struck from the upper sheet and upwardly struck from the lower sheet and which are sealed together in order to form this peripheral side wall. The present invention also provides the unique form of manufacturing the water bed mattress of the present invention.

REFERENCES:
patent: 3585356 (1971-06-01), Hall
patent: 3735432 (1973-05-01), Kreten
patent: 3778852 (1973-12-01), Penn et al.
patent: 3918110 (1975-11-01), Cantillo et al.
patent: 3925835 (1975-12-01), Pennington et al.
patent: 3986213 (1976-10-01), Lynch
patent: 4006501 (1977-02-01), Phillips

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