Method of assembly of electric heating element with bulkhead fit

Details Method of assembly of electric heating element with bulkhead fit Method of assembly of electric heating element with bulkhead fit

1977-05-26

1978-07-11

DiPalma, Victor A.

Metal working

Method of mechanical manufacture

Electrical device making

29517, 29520, H05B 300

Patent

active

040993191

ABSTRACT:
An electric heating element assembly includes a solderless fitting for sealably securing a sheathed heating element through an aperture in a container wall or bulkhead, such as in a dishwasher or the like. The fitting includes a cylindrical sleeve positioned over the sheath of the heating element and through the aperture. A radial flange on the fitting is drawn tight against a gasket and the wall by means of a fastener on the outside surface of the sleeve to secure a watertight seal between the fitting and the wall. The sleeve is attached to the sheath by means of an annular lip on the face of the flange, circumferential portions of this lip being axially compressed during assembly so as to radially-inwardly deform corresponding circumferential portions of the sleeve and the sheath to obtain a rotationally-locked liquid-sealing engagement therebetween.

REFERENCES:
patent: 2785270 (1957-03-01), Burger
patent: 3116401 (1963-12-01), Drugmand
patent: 3354294 (1967-11-01), Kollar et al.

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