Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1976-09-13
1977-08-02
Van Balen, William J.
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
156290, 428 68, 428 12, 428 71, 428 76, 428194, 428311, 428315, B32B 3100
Patent
active
040393631
ABSTRACT:
A floating seat cushion which is capable of emergency use as a life preserver. The seat cushion comprises a center core of open cell polyurethane foam material surrounded by an outer layer of closed cell polyethylene foam material. A belt extends transversely adjacent one side of the center core to form a pair of loops which extend outwardly from opposite sides of the cushion. The belt is preferably laminated between the center core and outer layer. The cushion is preferably formed by placing the center core outer layer and belt in overlying relationship to each other with adhesive between them. The assembly is then placed in a press and compressed to cause the center core to collapse so that the peripheral portions of the outer layer can be bonded together to enclose the center core. Air is then replaced into the center core to cause the cushion to assume a convex or crown shape. The completed cushion is preferably coated with vinyl.
REFERENCES:
patent: 2660194 (1953-11-01), Hoffman
patent: 2878153 (1959-03-01), Hacklander
Comstock Robert C.
Van Balen William J.
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