Beds – Bedclothing – And means to facilitate changing thereof
Patent
1993-07-26
1995-03-14
Trettel, Michael F.
Beds
Bedclothing
And means to facilitate changing thereof
5449, 5453, 297DIG3, 601148, A61G 704
Patent
active
053966716
ABSTRACT:
A pad for providing alternating pressure e.g. in a mattress. The pad comprises first and second flexible longitudinal tubes adjacent respective first and second sides of the pad. The pad also includes a plurality of first transverse tubes communicating pneumatically with the first longitudinal tube and each having a closed end remote therefrom and a plurality of second transverse tubes communicating pneumatically with the second longitudinal tube and each having a closed end remote therefrom. The first tubes are disposed at a first angle such that the closed ends of the first transverse tubes are located beneath the second longitudinal tube. The closed ends of the second transverse tubes are disposed at a second angle opposive to the first angle and are located beneath the first longitudinal tube. The first and second tubes are interdigitated so that the arrangement produces a shallow "V".
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