Electrical bushings having molded in screens and methods of making
AssigneeHubbell Incorporated
InventorPeter Wayne Glaesman
Life of this patent
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Abstract
An electrical bushing is provided that includes a conductor, a conductive polymer screen, and an insulating body. The conductive polymer screen has a first region and a second region. The insulating body is molded over at least a portion of the conductor and is molded over the first region of the screen. The second region of the screen extends outward from the insulating body to define an exterior flange.
Claims19
An electrical bushing, comprising:
- a conductor;
- a conductive polymer screen;
- and
- an insulating body, the conductive polymer screen having a first region and a second region, the insulating body being molded over at least a portion of the conductor and being molded over the first region of the screen, the second region of the screen extends outward from the insulating body to define an exterior flange.
An electrical bushing consisting of a conductor, a conductive polymer screen, and an insulating body, the insulating body being molded over at least a portion of the conductor and being molded over a first region of the screen, the screen having a second region that extends outward from the insulating body to define an exterior flange.
A method of forming an electrical bushing, comprising:
- seating a conductive polymer screen in a cup portion of a mold so that an outer surface of the screen is seated against an inner surface of the cup portion;
- inserting a conductor into the mold and through the screen;
- closing the mold;
- and
- injecting an insulator material into the mold so that the insulator material flows through holes in a first region of the screen, the insulator material forming an insulator body over at least a portion of the conductor and over the first region of the screen, the outer surface forming part of a second region of the screen that extends outward from and over an outer portion of the insulating body.
An electrical bushing, comprising:
- a conductor;
- a conductive polymer screen having a first region and a second region;
- and
- an insulating body, wherein at least a portion of the conductor and the first region of the screen are encased in and form an integral unit with the insulating body, and wherein the second region of the screen extends outward from the insulating body to define an exterior flange.
Dependencies are inferred from the claim text.