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Cosmetic Surgery

Insulated-cabinet-manufacture

Blood pressure measure system

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Insulated cabinet manufacture

Details

Inventors: Buchser, William J.;
Assignee: Whirlpool Corporation (Benton Harbor, MI)
Primary Examiner: Moon; Charlie T.
Assistant Examiner:
Attorney, Agent or Firm: Wood, Dalton, Phillips, Mason & Rowe

An insulated cabinet manufacture for use in a refrigeration appliance or the like, having an outer shell and an inner liner with foamed-in-place insulation therebetween. A wiring tunnel is extended inwardly through an opening in the shell, through the insulation space, and inwardly through an aligned opening in the liner. The opening in the liner may be substantially larger than the periphery of the wiring tunnel and a foam stop element is affixed to the inner surface of the liner with the wiring tunnel extending therethrough. A second foam stop element is loosely disposed on the wiring tunnel to be moved into engagement with the first stop element as an incident of the foaming of the insulation material during the foaming-in-place operation, The outer end of the wiring tunnel may be provided with a flange sealingly secured to the outer surface of the shell. A wiring harness is removably installed in the tunnel to provide wiring from exteriorly of the cabinet to the interior thereof.

DETAILED DESCRIPTION Having described the invention, the embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows: 1.
A method of manufacturing a foamed-in-place refrigerator cabinet structure including an outer shell and an inner liner with a through-the-wall wiring structure therein, comprising the steps of: providing a cabinet liner; forming an opening in the wall of said liner; providing a foam stop member on the outer surface of the portion of said liner defining said opening, said foam stop member having a radially inner portion overlying said liner opening and defining a smaller opening; providing a cabinet shell; forming an opening in the wall of said shell; extending a tubular member inwardly through said shell wall opening; placing said liner within said shell in spaced, nested relationship to form an insulation space therebetween and with said tubular member extending inwardly successively through said foam stop member and linear openings; and forming foamed-in-place insulation in said insulation space while effecting a foam stop seal between said foam stop member and said tubular member.
2.
The method of manufacturing a foamed-in-place refrigerator cabinet structure of claim 1 further including the step of fitting a wiring grommet to said tubular member for retaining one or more wires within said tubular member.
3.
The method of manufacturing a foamed-in-place refrigerator cabinet structure of claim 1 further including a step of fitting a second foam stop member about the inwardly extending tubular member for slidable movement thereon by the expanding foam during the formation of the foam-in-place insulation to urge said second foam stop member against said first foam stop member on said liner, thereby effecting said foam stop seal and providing a double foam stop layer at said liner opening.
4.
The method of manufacturing a foamed-in-place refrigerator cabinet structure of claim 1 wherein said foam stop member is formed of polyurethane

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