Mattress

Details Mattress Mattress

1979-12-21

1981-09-01

Nunberg, Casmir A.

Beds

Having safety device

5474, 5475, 5420, A47C 2304

Patent

active

042863449

ABSTRACT:
A mattress includes a pair of ridges made of elastomeric material and disposed respectively on both sides of an elastomeric layer which is laid on the top of a spring unit and covered with an outer covering, the ridges protruding from the elastomeric layer. Each ridge partially or fully extends in the longitudinal direction of the elastomeric layer. A user lying on the mattress is prevented from falling from the mattress by the ridges.

REFERENCES:
patent: 1432875 (1922-10-01), Lavagetlo
patent: 2627902 (1953-02-01), Cook
patent: 2717636 (1955-09-01), Hormuth
patent: 3681798 (1972-08-01), Docker
patent: 3848283 (1974-11-01), Ikeda
patent: 4096596 (1978-06-01), Pearson
patent: 4109887 (1978-08-01), Wakeland

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