Beds – Having safety device – Side guard
Patent
1989-07-17
1990-04-10
Smith, Gary L.
Beds
Having safety device
Side guard
297DIG3, 297284, 5455, 5446, A47C 2002, A47C 2710
Patent
active
049147668
ABSTRACT:
A portable self-contained pneumatic cushion device containing a multiple cell hermetically sealed thermoplastic air bladder within a fabric cover. A pneumatic charging valve is located in one bladder cell which acts as a plenum and a contour control valve is located within another cell. The contour control valve is connected by flexible conduits with the cells and may be opened to circulate air freely between all cells or closed to pneumatically isolate the individual cells. The contour control valve is operated by a finger-pressure squeezing action placed on valve indicators located on the surface of the fabric cover. The cushion can be instantly and simultaneously asymmetrically contoured on both faces by the user to conform to and support an irregularly shaped load applied to both faces of the cushion.
REFERENCES:
patent: 2136510 (1938-11-01), Jensen
patent: 3192541 (1965-07-01), Moore
patent: 3326601 (1967-06-01), Vanderbilt et al.
patent: 4017118 (1977-04-01), Cawley
patent: 4189181 (1980-02-01), Noble et al.
patent: 4190286 (1980-02-01), Bentley
patent: 4570676 (1986-02-01), Nishio et al.
patent: 4619481 (1986-10-01), Grudzinskas
patent: 4634179 (1987-01-01), Hashimoto et al.
patent: 4759543 (1988-07-01), Feldman
Nicholson Eric K.
Smith Gary L.
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