Pressure reduction foam mattress support

Details Pressure reduction foam mattress support Pressure reduction foam mattress support

1991-03-11

1992-01-28

Trettel, Michael F.

Beds

Bedclothing

And means to facilitate changing thereof

5468, 5481, A47C 2714

Patent

active

050833359

ABSTRACT:
A foam mattress support having a top, intermediate and bottom layer. The intermediate layer includes a plurality of ribs having a cross-sectional area increasing in the direction perpendicular to the pad, the height of the ribs being at least as great as one-third of the thickness of the pad, and the cross-sectional area of the ribs at the head and foot end being substantially equal but being less than the cross-sectional area of the ribs between the head and foot ends.

REFERENCES:
patent: 2617751 (1952-11-01), Bickett
patent: 2835313 (1958-05-01), Dodge
patent: 2953195 (1960-09-01), Turck, Jr.
patent: 3403414 (1968-10-01), Unger
patent: 3885257 (1975-05-01), Rogers
patent: 4106139 (1978-08-01), Southard
patent: 4397053 (1983-08-01), Fanti
patent: 4524473 (1985-06-01), Fanti
patent: 4679266 (1987-07-01), Kraft
patent: 4682538 (1989-09-01), Spann et al.
patent: 4713854 (1987-12-01), Graebe
patent: 4793574 (1988-12-01), Fenske et al.
patent: 4796316 (1989-01-01), Boselli
patent: 4930173 (1990-06-01), Woller

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