Beds – Bedclothing – And means to facilitate changing thereof
Patent
1992-10-08
1993-07-06
Trettel, Michael F.
Beds
Bedclothing
And means to facilitate changing thereof
5632, 59005, A47C 2716
Patent
active
052242269
ABSTRACT:
A body support structure in the form of a mattress for supporting a person when lying thereon is provided. It comprises a body of resilient, compressible material, having a surface layer of resilient soft material. The body includes a head end edge and a foot end edge at its opposite end; two substantially parallel straight elongated side edges; a bottom face extending between the two side edges of the body; an upper face opposed to and spaced from the bottom face between the two side edges of the body; two spaced apart elongated ridges, one of the ridges extending along each side edge; a channel provided in the upper face extending between the two ridges, the channel joining smoothly to the two ridges on either side; a central raised part located in the channel between but distanced away from the opposite end edges and being positioned to support the lumbar region of a person lying in the channel and side parts provided on the ridges adjacent the central raised part.
REFERENCES:
patent: 1045228 (1912-11-01), Weltmer
patent: 3378861 (1968-04-01), Lousberg
patent: 4286344 (1981-09-01), Ikeda
patent: 4383342 (1983-05-01), Forster
patent: 4665573 (1987-05-01), Fiore
patent: 4955091 (1990-09-01), Gilroy et al.
patent: 5136740 (1952-08-01), Kraft
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