Beds – Mattress – Nonplanar top surface
Patent
1996-08-15
1998-10-13
Grosz, Alexander
Beds
Mattress
Nonplanar top surface
5722, 5723, 5930, A47C 2718
Patent
active
058193480
ABSTRACT:
A modular, adjustable maternity mattress designed to accommodate a pregnant woman at rest in a prone or side lying position; comprised of a sectioned base cushion and corresponding relocatable upper cushions as a head cushion, an inflatable abdominal cushion, and a leg cushion. The sectioned base cushion is shaped as a thin conventional mattress and is slightly longer than the overall length of the head, inflatable abdominal, and leg cushions joined end to end. The head and leg cushions are thick, flat, and generally squared, with wedge shaped medial ends (relative to the centrally located inflatable abdominal cushion) that slope downward and inward towards the base cushion and inflatable abdominal cushion respectively. In the preferred embodiment, the inflatable abdominal cushion is composed of a series of vertically tiered independently inflatable cells, the overall lengths of which increase as they ascend, and each cell having an inflator inlet and deflator outlet. The inflatable abdominal cushion, having contours that conform to the medial ends of the head and leg cushions where they interface otherwise contacts the base cushion surface, therefore having no lateral boundaries. When the inflatable abdominal cushion is deflated, a graduated, trough like, open sided abdominal outlet is formed. The length of the abdominal outlet is adjusted by relocating the head and leg cushions on the base cushion, and the depth of the abdominal outlet is adjusted via the degree of inflation of the inflatable abdominal cushion. The abdominal outlet provided is within a level surfaced mattress.
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