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Class 337/202 - Bushing or insulator


Subclass of Class 337 - Electricity: electrothermally or thermally actuated switches
Definition: Subject matter wherein the structure comprises bushing or
No. of patents: 24
Last issue date: 03/23/2010


NumberTitleIssue Date
7683751Fuse mounting member
A fuse mounting assembly includes an epoxy-bonded glass-fiber core that is surrounded by a resilient sleeve having a number of radially extending members. Attached to an end of the core is a first mounting bracket and attached to another end of the core is another m...
03/23/2010
7633370Fuse mounting member
A fuse mounting assembly includes an epoxy-bonded glass-fiber core that is surrounded by a resilient sleeve having a number of radially extending members. Attached to an end of the core is a first mounting bracket and attached to another end of the core is another m...
12/15/2009
7532103Composite insulator for fuse cutout
The present invention relates to an electrical fuse cutout comprising: (i) an insulator having a composite body and at least two connectors, wherein a first connector couples the composite body to a fuse assembly and a second connector couples the body to a utility ...
05/12/2009
7320171Fuse component
A fuse component (1) includes a hollow body (2) which is formed from a tubular wall that encloses an inner area (5) and which has two open faces that are situated opposite one another. The fuse component also includes a fuse-element (4) w...
01/22/2008
7015394Sealed and adaptable cable bushing with easy cable positioning and sleeve equipped with such a bushing
A cable bushing intended to close off, in a sealed way, a space around a plurality of cables, comprises a first compression part (4) intended to be positioned towards the outside of a sleeve (47), a second compression part (6), offset in a longi...
03/21/2006
6952154Composite insulator for fuse cutout
The present invention relates to an electrical fuse cutout comprising: (i) an insulator having a composite body and at least two connectors, wherein a first connector couples the composite body to a fuse assembly and a second connector couples the body to a utility ...
10/04/2005
6491548Elbow canister fuseholder
A new elbow canister fuseholder is provided that includes an electrically insulated and shielded housing for placing a fuse in-line between a cable and an electrical apparatus for underground distribution application. An insulating tube is contained withi...
12/10/2002
5592139Air-convection-cooled dry well for high-voltage current-limiting fuse for use in liquid or gas insulated switchgear
Methods and apparatus for fusing high-voltage electrical systems including fuse holding dry wells each of which includes a metallic outer wall, a fuse mount and a chimney tube located between the outer wall and a fuse in the mount. The dry wells may be mo...
01/07/1997
4870387Beam strengthened cutout insulator
An improved, integrally cast, synthetic resin insulator (22) especially adapted for use in an electrical cutout device (20) is provided which can be readily fabricated and gives greatly enhanced beam strength and arc track resistance characteristics. The ...
09/26/1989
4818967Fused high voltage bushing
A current limiting fuse for a transformer bushing including a glass tubing, an elongate ribbon spirally wound in the tubing, the ribbon including a number of tabs formed integral therewith to space the ribbon inwardly of the walls of the tubing, a termina...
04/04/1989
4419640Unitary contact-terminal blades integrally formed in a molded base
There is provided a method of producing a contact switching device comprising a step of pressing an electrically conductive metal sheet to form a lead frame having at least one relatively resilient contact member extending from one of terminal portions an...
12/06/1983
4365227Method and apparatus for fusing electrical power equipment enclosed in a tank and surrounded by insulating fluid
A vacuum fuse is mounted in an insulating oil filled tank containing electrical apparatus and is directly immersed in the insulating oil. A fuse ferrule contact block is suspended in the insulating oil. The suspension for the contact block permits insulat...
12/21/1982
4321576Fuse holder-under oil drywell loadbreak device
A drywell fuse holder and a loadbreak fuse assembly, the holder including an arc-extinguishing sleeve located adjacent to the inner contact sleeve, the loadbreak fuse assembly including a non-expulsion fuse having electrical interface assemblies at each e...
03/23/1982
4321575Fuse cut-out recloser apparatus
A fuse recloser for placing a fuse in a vertically oriented fuse holder includes a channel-shaped fuse shoe pivotally mounted within a channel-shaped support. The side arms of the shoe and support flex and the shoe releasably grips a fuse. The exterior of...
03/23/1982
4320432High voltage transformer bushing fuse and arrester arrangement
A high voltage transformer bushing having an inner conductor extending from a lower end to a point spaced from an upper end and having a side terminal at that point connected to a fuse link which is in turn connected to a high voltage line connector suppo...
03/16/1982
4275372Protected electrical inductive apparatus
Protected liquid-filled electrical inductive apparatus having a dry well fuse assembly which includes a dry well fuse holder sealingly disposed through an opening in the associated metallic casing, separate from the electrical bushings, and a removable fu...
06/23/1981
4240122Protective device
A protective device for electrical power distribution equipment includes a removable fuse holder and an integral load switch. The protective device may be affixed to a grounded metal enclosure, such as an oil-filled transformer, into which the protective ...
12/16/1980
4216456Current limiting apparatus
A current limiting apparatus comprises a current limiter and cooling fins formed on each current terminal of the current limiter, and additional cooling fins fitted on a cylindrical tube of the current limiter near a heat generating source....
08/05/1980
4144402Power supply with replaceable high-voltage bushing
A novel housing structure for a high voltage power supply results in an easily replaceable electrical high voltage bushing. In this an elongated electrode is attached at an end to a support member and extends through an opening in a boundary plate, which ...
03/13/1979
4060785Enclosing structure for a high voltage electric fuse
An enclosing structure for an electric fuse having a fusible element disposed within a tubular casing of insulating material and interconnected at its ends with terminals mounted on the casing ends comprises an elongated tubular enclosure formed of insula...
11/29/1977
4028656High voltage fuse with outer heat-shrinkable sleeve
A cylindrical sleeve having annular flanges is formed of irradiated terpolymers of ethylene, propylene, and a diene monomer (EPDM) material. The sleeve is then expanded, but the irradiated EPDM material has a "memory" which tends to cause it to return to ...
06/07/1977
3990031Electrical bushing containing a full-range current-limiting fuse
A current-limiting fuse capable of interrupting a wide range of current values is located within the bore of a porcelain insulator. One end of the fuse is connected to an outer terminal which is located at one end of the bushing insulator. The other end o...
11/02/1976
3972015Heat insulated fused high voltage bushing
A fused high voltage electrical bushing having a housing formed of a ceramic dielectric material, porcelain or glass, and having an axially extending passage, an electric terminal at each end of said passage, a fusible element within said passage intercon...
07/27/1976
3962667Combination fuse and bushing
A fused high voltage electrical bushing adapted to be mounted at the entrance in a casing to an electrical apparatus to provide a connection between a high voltage cable and the electrical apparatus, the bushing including a housing formed of a dielectric ...
06/08/1976
 
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