Beds – Bedclothing – And means to facilitate changing thereof
Patent
1983-10-18
1985-08-13
Grosz, Alexander
Beds
Bedclothing
And means to facilitate changing thereof
5451, 5455, A47C 2708, A61G 704
Patent
active
045340781
ABSTRACT:
A mattress employs a first plastic unit which is flat and horizontal and is provided with a peripherally disposed horizontal endless hollow tube which is inflatable. The tube, when inflated, defines a raised peripheral border surrounding and enclosing an inner flat horizontal central area of the first unit. A second plastic unit is removably disposed on top of the central area. The second unit has a first upper section having oppositely disposed inner and outer surfaces, the outer surface being disposed above the inner surface and permanently defining a plurality of closely spaced raised regions which are interconnected by channels disposed below the top surfaces of the regions. The inner surface permanently defines a like plurality of deep recesses, each deep recess constituting the inside of a corresponding region, the deep recesses being interconnected by shallow recesses, each shallow recess constituting the inside of a corresponding channel. The second unit has a second lower section which is essentially flat and horizontal and is sealed to the inner surface of the first section in such manner that the deep and shallow recesses communicate with each other.
REFERENCES:
patent: 2842783 (1958-07-01), Druck
patent: 3670347 (1972-06-01), Weinstein
patent: 3735432 (1973-05-01), Kreten et al.
patent: 4115885 (1978-09-01), Davis
patent: 4193151 (1980-03-01), Calleance
patent: 4389742 (1983-06-01), De Witt
patent: 4405129 (1983-09-01), Stuckey
patent: 4422194 (1983-12-01), Viesturs et al.
Ardo.TM. Flotation System; an article on p. 112 of the Jul. 1983 issue of "Flotation Sleep Industry".
Viesturs Eric A.
Viesturs Gundar E.
Connecticut Artcraft Corp.
Grosz Alexander
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