Beds – Bedclothing – And means to facilitate changing thereof
Patent
1989-08-18
1990-06-05
Grosz, Alexander
Beds
Bedclothing
And means to facilitate changing thereof
5460, 5474, 24 725, 428 79, 428192, A47C 2708, A47C 3100
Patent
active
049301721
ABSTRACT:
Waterbed corner structure and method in which a cornerpiece is formed as a monolithic structure with a relatively thick base plate and relatively large ridges projecting from the front surface of the base plate. The base plate has a peripheral sealing area which is affixed by heat sealing to the walls of the mattress to form the corner, and the base plate is formed of a material which is pliant enough to conform to the contour of the mattress and tough enough to resist puncturing. The ridges help to keep bedsheets in place on the mattress.
REFERENCES:
patent: 3957557 (1976-05-01), Fraige
patent: 4251308 (1981-02-01), Miller
patent: 4256159 (1981-03-01), Williams
patent: 4833744 (1989-05-01), Correa
"The Naturalizer" A pamphlet of the Land And Sky Company of Lincoln, Nebraska .COPYRGT.1989.
"Free Floating Hydraulic System" An undated Brochure of The Monterrey Co.
Grosz Alexander
Strata Flotation, Inc.
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