Multi-layered mattress

Details Multi-layered mattress Multi-layered mattress

1976-06-01

1977-10-18

Gilliam, Paul R.

Beds

Bedsteads

Element or detail

5361B, A47C 2300

Patent

active

040539571

ABSTRACT:
A multi-layered mattress for straightening a reclining body including a lower layer which has a support engaging bottom surface and a generally planar top surface. An upper layer which has a bottom surface engaging the top surface of the lower layer and a top, body supporting surface. The resiliency of the material in the upper layer is greater than that of the lower layer. First and second ribs of less resiliency than the upper layer extend transversely across and upwardly from the upper surface of the lower layer into complementary recesses in the bottom surface of the upper layer. The first and second ribs are positioned to support the shoulders and the buttocks of one lying on the mattress.

REFERENCES:
patent: 3419920 (1969-01-01), Maddux et al.
patent: 3553748 (1971-01-01), Ross
patent: 3828378 (1974-08-01), Flam
patent: 3846857 (1974-11-01), Weinstock
patent: 3885258 (1975-05-01), Regan

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