Method of controlling foaming of cabinet insulation

Details Method of controlling foaming of cabinet insulation Method of controlling foaming of cabinet insulation

1977-05-02

1978-10-03

Anderson, Philip

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

Composite article making

264 466, 264261, 312214, B29D 2704

Patent

active

041184513

ABSTRACT:
A method of controlling the foaming of foamed-in-place insulation in a cabinet structure having an inner liner and an outer shell with the liner having an outer surface and the shell having an inner surface in outwardly spaced confronting relationship to the outer surface of the liner at a front opening of the cabinet. A flexible sheet is secured to either the outer surface of the liner or the inner surface of the shell at the front opening and has a preselected stiffness so as to cause the sheet to project away from the surface to which it is secured whereby the foaming of the insulation may carry the projected portion to the front opening of the insulation space. A backup member may be disposed across the opening so as to limit the outward deflection of the strip by the foam whereby the strip defines the outer boundary of the foamed insulation across the opening. A portion of the opening may be defined by an inturned flange and the sealing strip may further be urged against the flange by the foaming insulation. The strip may be transparent to permit observation of the insulation formation at the opening.

REFERENCES:
patent: 3078003 (1963-02-01), Kesling
patent: 3132382 (1964-05-01), Magester
patent: 3152199 (1964-10-01), Roberts
patent: 3278065 (1966-10-01), Cyrus
patent: 3440308 (1969-04-01), Carbary

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