Fluid mattress with squared gusset panel construction

Details Fluid mattress with squared gusset panel construction Fluid mattress with squared gusset panel construction

1976-12-23

1978-09-26

Nunberg, Casmir A.

Beds

Bedsteads

Element or detail

3370, A47C 2708

Patent

active

041158865

ABSTRACT:
A fluid mattress is formed by a top sheet, a bottom sheet, and a gusset panel extending between the peripheral edges of the sheets. The mattress has square corners resulting from a preferred method of construction wherein a die is provided with a curved surface having a radius R1. Material to be joined in the corner of the mattress is provided with a radius of curvature R2 which is dependent upon the radius R1. In a preferred method step, the centers of curvature of the radii R1 and R2 are aligned and the material is folded in a manner to minimize the excess of material and the resulting flow of material during the formation of a heat seal.

REFERENCES:
patent: 2987735 (1961-06-01), Nail
patent: 3778852 (1973-12-01), Penn et al.
patent: 3825172 (1974-07-01), Mollura
patent: 3918110 (1975-11-01), Cantillo et al.
patent: 3925835 (1975-12-01), Pennington et al.

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