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Class Information
Number: 439/921
Name: Electrical connectors > Transformer bushing type or high voltage underground connector
Description: Art collection of particular utility in electrically sealing the connector of a member for changing voltage in an alternating current supply or of connecting "high voltage" (i.e., measured in thousands of volts) electrical conductors intended to be buried beneath the surface of the earth.

Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
4820183 Connection mechanism for connecting a cable connector to a bushing Apr. 11, 1989
4799895 600-Amp hot stick operable screw-assembled connector system Jan. 24, 1989
4787855 Multiple bushing connector apparatus Nov. 29, 1988
4782197 Electrical bushing having a replaceable stud Nov. 1, 1988
4779341 Method of using a tap plug installation tool Oct. 25, 1988
4773872 Static contact member for a high-voltage bushing insert Sep. 27, 1988
4722694 High voltage cable connector Feb. 2, 1988
4354721 Attachment arrangement for high voltage electrical connector Oct. 19, 1982
4353611 Bushing well stud construction Oct. 12, 1982
4214806 Fast release connector Jul. 29, 1980
4210381 Electrical connector contacts Jul. 1, 1980
4203641 Double bushing insert May. 20, 1980
4202591 Apparatus for the remote grounding, connection and disconnection of high voltage electrical circuits May. 13, 1980
4170394 High voltage separable connector system with modified dwell position Oct. 9, 1979
4059326 Dry-type instrument transformer with potential tap and connector therefor Nov. 22, 1977
4059329 Double bushing well with cantilever load supporting legs Nov. 22, 1977
4054351 Connection between a device in a metallic sheath and a transformer Oct. 18, 1977
4029380 Grounded surface distribution apparatus Jun. 14, 1977
3980374 Separable splice connector Sep. 14, 1976

1 2 3

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