Beds – Bedclothing – And means to facilitate changing thereof
Patent
1988-08-29
1989-11-28
Grosz, Alexander
Beds
Bedclothing
And means to facilitate changing thereof
5455, 5465, A47C 2710
Patent
active
048828009
ABSTRACT:
The flotation mattress includes an outer cover which defines an enclosed inner area divided into three sequential sections by transverse dividing walls. Each section includes alternating water columns and ventilation chambers arranged across the section between raised air baffles extending along the outer longitudinal edges of each section. The water columns are of maximum cross-sectional area adjacent the top surface of the mattress and of minimal cross-sectional area adjacent the bottom surface of the mattress. The intervening ventilation chambers are open to the atmosphere and are of minimal cross-sectional area adjacent the top surface of the mattress. In another embodiment, the mattress is divided into three separate sequential sections which are selectively interlockable, the sections having air baffles which can be rotated from the plane of the mattress to cradle a user atop the alternating water columns and ventilation chambers.
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patent: 4517692 (1985-05-01), Vogel
patent: 4534078 (1985-08-01), Viesturs et al.
patent: 4611357 (1986-09-01), Chelin
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