Robert E Wilk

US Patent:

47673516, Aug 30, 1988

Filed:

Aug 13, 1986

Appl. No.:

6/896529

Inventors:

Janak R. Patel - Indianhead Park IL
Robert J. Wilk - Oak Forest IL

Assignee:

G & W Electric Company - Blue Island IL

International Classification:

H01R 13627

US Classification:

439363

Abstract:

A bushing, having an elongated conductor substantially encased in insulating material, which extends in sealing relationship through an aperture in a sealed enclosure encasing an electrical apparatus, comprising a conductor having two parts, a first generally cylindrical rod part which is permanently fixed at its proximal end to the electrical apparatus and which extends therefrom toward the aperture, and a second sleeve part having a generally annular passage disposed to circumferentially engage substantially all of the first rod part and thereby provide a conductive path therebetween; a one-piece insulator permanently attached to and substantially encasing the sleeve part of the conductor; means for threadably connecting the two parts of the conductor such that connection and disconnection can be accomplished from outside the enclosure, thereby enabling disconnection of the sleeve part and the insulator from the electrical apparatus without opening the enclosure; and means for sealing the junction of the two parts of the conductor so as to contain the environment within the enclosure.

US Patent:

49565257, Sep 11, 1990

Filed:

Jun 5, 1989

Appl. No.:

7/361416

Inventors:

Robert J. Wilk - Oak Forest IL

Assignee:

G & W Electric Company - Blue Island IL

International Classification:

H01B 1726

US Classification:

174152R

Abstract:

An electrical insulating bushing and a method of fabrication with an electrical device having a cabinet with an outer wall and a bushing-receiving aperture in the wall. The bushing includes an elongated body surrounding a central conductor with an annular mounting flange at a mid portion of the insulator body. An interface collar is received in the aperture of the cabinet and is welded to the cabinet wall. Thereafter, the bushing is inserted in the interface collar and is joined thereto with an adhesive. A gasket ring is positioned between the bushing flange and the interface collar prior to the adhesive joinder thereof, so as to augment the fluid-tight seal therebetween.