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| Number | Title | Issue Date |
| 7196434 | Modular contactor assembly having independently controllable contractors The present invention provides an electrical isolation apparatus having independently controllable contactors. The isolation apparatus includes a contactor for each phase or pole of an electrical device as well as each phase or pole of a load. Each contactor is cons... | 03/27/2007 |
| 6956733 | Device and method for providing electric service An exemplary device and method for providing electric service are disclosed. The exemplary device may provide construction power during the construction of a facility and permanent power at the facility thereafter. The electric service device, when energized at a co... | 10/18/2005 |
| 6710687 | Test button assembly for circuit breaker An improved test button assembly for use in a circuit breaker includes a frame and a button member, with the button member being pivotably mounted on the frame. A pair of microswitches are mounted on a printed circuit board that is disposed on the frame. The button ... | 03/23/2004 |
| 6313723 | Remote controllable circuit breakers with positive temperature coefficient resistivity (PTC) elements A circuit breaker and method for interrupting the flow of electric current in a line having a load and a source including a first switch connected in series with the line and a first actuating device coupled to the first switch and adapted to be actuated ... | 11/06/2001 |
| 5576580 | DC power supply circuit A dc power supply circuit connects a plurality of dc circuit breakers to a semi-conductor converter, returning again to the semi-conductor converter through a dc driving part such as an electric railcar connected to each dc circuit breaker. A second dc ci... | 11/19/1996 |
| 5572073 | AC power module for automation system Disclosed is an AC power module for controlling the level of power to multiple electrical devices such as lights and household appliances according to control signals supplied from a processor unit. The apparatus utilizes low voltage control signals which... | 11/05/1996 |
| 4641117 | Combined accessory and trip actuator unit for electronic circuit breakers A modified electronic trip unit actuator provides remote trip and undervoltage release function without impairing the actuator reliability. One embodiment replaces the permanent magnet of a flux shift trip unit actuator with an undervoltage release coil f... | 02/03/1987 |
| 4016518 | Circuit breaker with improved single coil actuator and undervoltage release mechanism A multipole circuit breaker including a trip release actuator having a single coil coaxially surrounding a plunger and mounted within a hollow cylindrical actuator support frame. The actuator is mounted in association with a latch mechanism and includes a... | 04/05/1977 |
| 4013926 | Circuit breaker with improved trip actuator and undervoltage release mechanism A multipole circuit breaker including a latch release actuator having a trip coil and a hold-in coil coaxially surrounding a plunger and mounted within a hollow cylindrical actuator support frame. The actuator is mounted in association with a latch mechan... | 03/22/1977 |
| 3999155 | Circuit interrupter including a current-limiting reactor A circuit interrupter including a multipole circuit breaker and a multipole current-limiting reactor device. The multipole current-limiting reactor device includes an insulating housing forming a plurality of compartments, each compartment having a double... | 12/21/1976 |
