Beds – Bedclothing – And means to facilitate changing thereof
Patent
1980-03-06
1982-06-22
Grosz, Alexander
Beds
Bedclothing
And means to facilitate changing thereof
5461, 5481, A47C 2714, A61G 700
Patent
active
043354769
ABSTRACT:
A mattress for supporting the human body has shoulder-supporting and hip-supporting portions of less hardness than waist-supporting and foot-supporting portions. The hardnesses of the shoulder-supporting and hip-supporting portions are inter-related to the maximum hardness of the waist-supporting portions so that the mattress biases the spine of the user into a shape consisting of two concave curves separated by a convex curve, which gives a more comfortable mattress and has medical and orthopaedic advantages. The mattress can be used domestically, for specialist orthopaedic purposes and for general medical purposes.
REFERENCES:
patent: 3828378 (1974-08-01), Flam
patent: 4053957 (1977-10-01), Regan
patent: 4070719 (1978-01-01), Morgan
patent: 4147825 (1979-04-01), Talay
patent: 4161045 (1979-07-01), Regan
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