Continuous foamed-in-place door panel manufacturing process

Details Continuous foamed-in-place door panel manufacturing process Continuous foamed-in-place door panel manufacturing process

1987-04-17

1988-05-24

Dawson, Robert A.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

5230911, 1563043, 156324, 264 465, 428 54, 428 61, 4283171, B32B 3106

Patent

active

047463830

ABSTRACT:
An improved continuous automated method of manufacturing insulated door panels is provided. The process includes a step of continuously connecting discrete first skin segments end to end by means of flexible joints to form a string of first skin segments and then conveying the string to a foamable liquid injecting station. In a preferred embodiment, a polyethylene film is applied to the string in order to contain foamable liquid in event of a gap caused by separation of a flexible joint.

REFERENCES:
patent: 4147582 (1979-04-01), Brollo
patent: 4441301 (1984-04-01), Benson
patent: 4453357 (1984-06-01), Zwilgmeyer
patent: 4536929 (1985-08-01), Riexinger et al.
patent: 4581186 (1986-04-01), Larson
patent: 4685266 (1987-08-01), Mullet

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