| Patent Number |
Title Of Patent |
Date Issued |
| RE32321 |
Electric switch and improved device using same |
December 30, 1986 |
| A high speed switch usable at high voltage includes a pair of contacts movable apart along a fixed line. When the contacts are normally interconnected, at least one of them contributes to the definition of an enclosed chamber. Pressurization of the chamber by the ignition of a power |
| D430847 |
Molded insulator for electrical apparatus |
September 12, 2000 |
|
| D407694 |
Electrical power operator for switchgear |
April 6, 1999 |
|
| D405060 |
Electrical switchgear assembly for power distribution systems |
February 2, 1999 |
|
| D391228 |
Electrical current limiter for power systems |
February 24, 1998 |
|
| D390834 |
Electrical switchgear enclosure for power distribution systems |
February 17, 1998 |
|
| D390537 |
Electrical fuse limiter for power systems |
February 10, 1998 |
|
| D374428 |
Electrical current limiter for power distribution systems |
October 8, 1996 |
|
| D367268 |
Electrical fuse limiter for power distribution systems |
February 20, 1996 |
|
| D367267 |
Electrical switchgear module for power distribution systems |
February 20, 1996 |
|
| D367266 |
Electrical fuse tube assembly for power distribution systems |
February 20, 1996 |
|
| D363919 |
Electrical current limiter for power distribution systems |
November 7, 1995 |
|
| D329043 |
Insulating through-bushing for an electrical conductor |
September 1, 1992 |
|
| D321508 |
Interrupter switch with selective circuit-isolating feature |
November 12, 1991 |
|
| D321170 |
Design for an interrupter switch with current-sensing feature |
October 29, 1991 |
|
| D320977 |
Interrupter switch with circuit-parameter sensing features |
October 22, 1991 |
|
| D317749 |
Electrical isulator with integral current sensor |
June 25, 1991 |
|
| D317433 |
Electrical insulator with integral circuit-parameter sensing features |
June 11, 1991 |
|
| D314944 |
Interrupter unit for a switch assembly |
February 26, 1991 |
|
| D314758 |
Design for an interrupter unit for a switch assembly |
February 19, 1991 |
|
| D312071 |
Interrupter switch |
November 13, 1990 |
|
| D311902 |
Hinge component for an electrical equipment mounting |
November 6, 1990 |
|
| D310823 |
Interrupter switch |
September 25, 1990 |
|
| D285550 |
High-voltage control module |
September 9, 1986 |
|
| D256355 |
Molded insulating base for an electrical apparatus |
August 12, 1980 |
|
| D256354 |
Molded electrical insulator |
August 12, 1980 |
|
| D256353 |
Base-mounted high voltage circuit interrupter |
August 12, 1980 |
|
| D256352 |
Housing for electrical apparatus |
August 12, 1980 |
|
| D254668 |
High voltage fuse end fitting |
April 8, 1980 |
|
| D254615 |
Hinge mounting for a high voltage fuse |
April 1, 1980 |
|
| D254614 |
Hinge mounting for a high voltage fuse |
April 1, 1980 |
|
| D254545 |
High voltage fuse end fitting |
March 25, 1980 |
|
| D254487 |
High voltage fuse end fitting |
March 18, 1980 |
|
| 7626397 |
High current capable circuit testing closer apparatus and method |
December 1, 2009 |
| A circuit testing closer may include a fault isolating switching device coupled between a supply side and a load side of a power distribution system and a current pulse generator coupled in parallel to the switch to generate a current pulse within the power distribution system subsequent |
| 7592555 |
Retention arrangement for a circuit interrupter |
September 22, 2009 |
| A retention arrangement for a circuit interrupter to ensure that ensures the retention of the circuit interrupter in its mounting. The retention arrangement cooperates with a latch member of the mounting for the circuit interrupter. Accordingly, the circuit interrupter is retained in |
| 7223928 |
Switch with improved protection from ice conditions |
May 29, 2007 |
| An arrangement is provided to protect an electrical switch from the deleterious effects of ice formation that inhibits switch operation. In a preferred arrangement, an ice shield is provided that protects the current-carrying contact structures and other operative elements of the swi |
| 6423903 |
Method and arrangement for minimizing electrical field stress in circuit interrupters and housin |
July 23, 2002 |
| A method and arrangement is provided for minimizing electrical field stress on circuit interrupters and their housings via the arrangement of the external sheds or skirts of the housing. In one arrangement, some of the sheds are grouped about each side of the open gap that is defined by |
| 6333853 |
Configuration of power electronic device modules |
December 25, 2001 |
| An efficient configuration for a power system is provided, e.g. for high-speed source transfer, utilizing power electronic assemblies and a directed ventilation arrangement. Each power electronic assembly includes a plurality of stacked power electronic device modules that are electr |
| 6331798 |
Control arrangement and method for high-speed source-transfer switching system |
December 18, 2001 |
| A control arrangement and method is provided for a power electronic system configured as a high-speed source-transfer switching systems (HSSTSS). The HSSTSS supplies an electrical load with alternating current from either a first source or a second source via respective first and second |
| 6300585 |
Operation counter for a circuit interrupter |
October 9, 2001 |
| An operation counter arrangement is provided for a circuit interrupter for opening a high-voltage circuit-isolating device. The operation counter arrangement responds to actual operations via response to a moving contact arrangement of the circuit interrupter. The operation counter arran |
| 6271653 |
Power supply operable with wide input range |
August 7, 2001 |
| An arrangement provides a power supply for low voltage circuits that is connected to receive and store energy from a power electronics switch that is connected to an alternating current supply. The power supply is operative over a wide range of input and regardless of the operating s |
| 6180902 |
Fault interrupter and operating mechanism therefor |
January 30, 2001 |
| A fault interrupter is provided that includes a high-speed disconnect in series with an interrupter wherein the circuit opening is via the interrupter and the circuit making is via the disconnect. A stored energy disconnect operating mechanism operates the disconnect between ground, |
| 6163265 |
Voltage sensing arrangement |
December 19, 2000 |
| A voltage sensing arrangement is provided that facilitates accurately measuring a sensed voltage while also providing isolation to a sensing path during a test mode of an associated indicator arrangement. The voltage sensing arrangement includes a voltage sensor that is arranged to s |
| 6040538 |
Switchgear assembly |
March 21, 2000 |
| Switchgear is provided that includes a housing enclosing electrical components having switch blades that establish visible open gaps in an open position. The switchgear includes an array of operating controls and viewing provisions to observe the open switch blades. The operating con |
| 6031368 |
Sensing apparatus for cable termination devices in power distribution systems |
February 29, 2000 |
| Coupling apparatus is provided for assembly with separable insulated connector components on power cables for power distribution systems. The coupling apparatus provides either direct or indirect coupling, e.g. to provide interconnection to the connector components or to provide a se |
| 6025657 |
Power operator for switchgear with manual features |
February 15, 2000 |
| A power operator for switchgear and the like is provided that is capable of either power or manual operation without the necessity of any decoupling or mode selection. The power operator is compact and easily affixed over a manual operating shaft of switchgear. The manual drive capabilit |
| 5910775 |
Phasing and indicator arrangements for switchgear or the like |
June 8, 1999 |
| A phasing and indicator arrangement is provided for switchgear or the like that responds to electrical sources and provides voltage indicator functions, phasing determinations, and self-test features. Phasing provisions are responsive to two or more voltage sensors proximate respecti |
| 5904577 |
Separable, flexible electrical connection arrangement |
May 18, 1999 |
| A separable, flexible connection arrangement (10) is provided for connection of two conductors (12, 14). In one arrangement, the separable, flexible connection arrangement (10) is utilized to provide an externally removable bushing (16) for connecting an electrical component located |
| 5895987 |
Power operator for switchgear with manual features |
April 20, 1999 |
| A power operator for switchgear and the like is provided that is capable of either power or manual operation without the necessity of any decoupling or mode selection. The power operator is compact and easily affixed over a manual operating shaft of switchgear. The manual drive capabilit |
| 5864107 |
Switchgear assembly |
January 26, 1999 |
| Switchgear is provided that includes a housing enclosing electrical components having switch blades that establish visible open gaps in an open position. The switchgear includes an array of operating controls and viewing provisions to observe the open switch blades. The operating con |
