Foam spring

Details Foam spring Foam spring

1978-10-06

1980-03-25

Nunberg, Casmir A.

Beds

Bedclothing

And means to facilitate changing thereof

5477, A47C 2708

Patent

active

041942558

ABSTRACT:
Elastic springy element, characterized by the fact that it consists of a mainly tubular body, made of synthetic foam material or the like, whereby the wall of the body displays a number of hollows, in staggered symmetry the cross-sectional surface of which varies from practically zero at the inner wall of the body, to a maximum value at the outer wall, for an unloaded body.

REFERENCES:
patent: 1296359 (1919-04-01), Brown
patent: 2539058 (1951-01-01), Burns
patent: 3401411 (1968-09-01), Morrison
patent: 4020511 (1977-05-01), Terry
patent: 4070719 (1978-01-01), Morgan

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