Mattress having an internal fluid containing chamber

Details Mattress having an internal fluid containing chamber Mattress having an internal fluid containing chamber

1975-10-17

1977-11-01

Gilliam, Paul R.

Beds

Bedsteads

Element or detail

128376, A47C 2708

Patent

active

040558673

ABSTRACT:
A mattress having an upper fluid containing chamber and a lower chamber filled with a material rendering it effectively more rigid and which surrounds a portion of the fluid chamber. The mattress is comprised of upper and lower flexible sheets which are provided with peripherally extending downwardly and upwardly struck flaps, respectively, at their outer peripheral ends. These flaps are sealed to each other in order to form a completely enclosed mattress. A tapered, angularly struck inner peripheral wall extends effectively between the upper and lower walls of the mattress in such manner that the upper end of the inner peripheral wall extends to the outer peripheral margin of the upper wall and the lower end of the inner peripheral wall terminates inwardly of the outer peripheral margin of the lower wall. In this way, the inner peripheral wall operates in conjunction with the upper wall in order to form an inner fluid chamber which is essentially coextensive with the entire upper surface of the upper wall. A lower chamber is formed by the other side of the inner peripheral wall, the outer wall and the lower wall. Thus, the lower chamber increases in size with the increased depth in the outer peripheral wall. The inner peripheral wall and the flaps which form the outer peripheral wall may be either lap sealed or otherwise butt sealed to each other in accordance with the present invention. The present invention also provides a unique method of making the mattress of the present invention.

REFERENCES:
patent: 3778852 (1973-12-01), Penn et al.
patent: 3802004 (1974-04-01), Whitney
patent: 3803647 (1974-04-01), Reswick
patent: 3840921 (1974-10-01), Labinco
patent: 3842455 (1974-10-01), Whitney
patent: 3918110 (1975-11-01), Cantillo et al.
patent: 3925835 (1975-12-01), Pennington et al.

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