Beds – Invalid bed or surgical support – Vertically movable support for whole body of user
Patent
1996-02-13
1997-11-18
Trettel, Michael F.
Beds
Invalid bed or surgical support
Vertically movable support for whole body of user
5620, 5613, A61G 700
Patent
active
056874375
ABSTRACT:
Various high-low bases including (i) a frame, and (ii) various lift mechanisms for supporting and for variably elevating the frame above a floor, fit completely under, and within the pedestal base, of a conventional contour bed. In one embodiment a motorized hydraulic drive mechanism variably controllably elevates the entire contour bed, including its pedestal base, in height above the floor, thereby to order to facilitate transfer of a user of the bed to and from a wheelchair, or the provision of care to the user who lies supine upon the bed. In another embodiment the lift mechanism is a motorized screw drive acting through cables to control lifting lever arms. In still another embodiment the screw drive of the lifting lever arms is direct. An upper surface of the contour bed is mechanically adjustable to contour a mattress that rests upon this upper surface independently of the hydraulic adjustment of the height of the bed. Various combinations of height-and-contour-adjustable, height-adjustable, contour-adjustable, and non-adjustable bed units may be harmoniously aesthetically and functionally combined, particularly for use in the home.
REFERENCES:
patent: 2523076 (1950-09-01), Sweetland
patent: 2681454 (1954-06-01), Tallman
patent: 3191195 (1965-06-01), Schlackman et al.
patent: 4381571 (1983-05-01), Elliott
patent: 4654903 (1987-04-01), Chubb et al.
patent: 5095560 (1992-03-01), Volker
patent: 5490298 (1996-02-01), Goldsmith et al.
Fuess William C.
Trettel Michael F.
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