Method for interrupting an electrical circuit

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 6674619
APP PUB NO 20010015879A1
SERIAL NO

09219726

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A method for interrupting current is provided wherein substantially all current is conveyed through a normal current carrying path in a circuit interrupter. A movable element is displaced for interruption of the current, and a balance is struck between the normal current carrying path and a parallel alternative or transient current carrying path. The transient current carrying path includes at least one variable or controllable resistance element. The transient current carrying path presents a substantially open circuit during normal operation. The variable resistance elements have a lower resistance during initial phases of circuit interruption, favoring transition of all current from the normal current carrying path to the transient path. Thereafter, the variable resistance elements increase in resistivity, producing additional back-EMF to drive the fault current to a zero level and to limit let-through energy.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
ALLEN-BRADLEY COMPANY, INC.MILWAUKEE, WI370
ROCKWELL AUTOMATION TECHNOLOGIES, INC.MAYFIELD HEIGHTS, OH1638

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Benard, David J Newbury Park, CA 20 239
Clayton, Mark A Camarillo, CA 6 14
Mallonen, Edward A New Berlin, WI 10 37
Nolden, Paul T Racine, WI 10 104

Cited Art Landscape

Patent Info (Count) # Cites Year
 
TYCO INTERNATIONAL (PA), INC., A CORPORATION OF NEVADA (1)
* 5737161 Overcurrent protection device and arrangement 27 1996
 
Other [Check patent profile for assignment information] (1)
5629658 Methods of arc suppression and circuit breakers with electronic alarmers 17 1994
 
GENERAL ELECTRIC COMPANY (4)
5614881 Current limiting device 104 1995
5877467 Circuit breaker current limiting arc runner 14 1997
5859578 Current limiting shunt for current limiting circuit breakers 19 1997
5847630 Compact circuit breaker incorporating a polymer current limiter 9 1997
 
ELECTRIC POWER RESEARCH INSTITUTE, INC. (1)
5164693 Remotely controllable circuit breaker with improved arc drive structure 40 1989
 
MENELLY, RICHARD A., ESQ. (1)
5539370 Inductive motor protective circuit breaker 14 1995
 
OVONYX, INC. (1)
5166758 Electrically erasable phase change memory 610 1991
 
EATON CORPORATION (1)
5667711 Circuit breaker incorporating trip coil as shunt resistor in parallel with current limiting polymer 15 1996
 
ALLEN-BRADLEY COMPANY, INC. (1)
5587861 Method for interrupting electrical power between two conductors 13 1995
* Cited By Examiner

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