Cushion or mattress structure

Details Cushion or mattress structure Cushion or mattress structure

1990-06-06

1991-08-20

Grosz, Alexander

Beds

Bedclothing

And means to facilitate changing thereof

5475, A47C 2705

Patent

active

050402552

ABSTRACT:
An improved cushion or mattress assembly is disclosed including side boxing sections which are glued to top and bottom sections thereby defining a cavity. Prior to glueing the top cover to the assembly, an insulation layer is inserted into the cavity defined therein and glue is applied to the top side of the insulation piece. A string of encased springs is then placed on top of the insulation piece. A second insulation piece with glue applied to the underside is placed on top of the encased spring array in the cavity. The top cover then is glued on the cushion assembly. The entire cushion assembly may be fiber or down covered and encased in a fabric, plastic, leather, or vinyl outer covering. The springs contained within the spring encasement assembly include an hourglass or dual radius contour and are heat treated or mormalized to provide improved stiffness and prolonged life. In addition, the ends of the springs are turned inward and toward the opposite end of the spring to minimize snagging of the spring ends on materials likely to contact the spring within the cushion.

REFERENCES:
patent: 1025489 (1912-05-01), Thompson
patent: 1246081 (1917-11-01), Genge
patent: 1466617 (1923-08-01), Foster
patent: 1703587 (1929-02-01), Kraft
patent: 2862214 (1958-12-01), Thompson et al.
patent: 3462779 (1969-08-01), Thompson
patent: 3869739 (1975-03-01), Klein
patent: 4186223 (1980-01-01), Hancock
patent: 4234983 (1980-11-01), Stumpf
patent: 4429427 (1984-02-01), Sklar
patent: 4578834 (1986-04-01), Stumpf
patent: 4854023 (1989-08-01), Stumpf
patent: 4868941 (1989-09-01), Tai

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