Circuit Breaker

PAT. NO. Title
1751 4,749,831 Dead tank type gas circuit breaker
1752 4,749,829 Circuit breaker
1753 4,748,304 Electrical circuit breaker with improved dielectric withstand
1754 4,748,301 Electric circuit breaker arc chute composition
1755 4,746,778 Circuit breaker with an actuating device and an energy accumulator
1756 4,743,875 Circuit breaker having a direct current measuring shunt
1757 4,743,721 Circuit breaker actuator device
1758 4,743,715 Draw-in and draw-out mechanism of an electrical circuit breaker with main and auxiliary circuits
1759 4,743,204 Auxiliary bolt-operated connection for panelboard circuit breaker
1760 4,742,321 Molded case circuit breaker with accessory functions
1761 4,742,200 Actuating device for a low-voltage circuit breaker with a ratchet wheel
1762 4,740,858 Zero-current arc-suppression dc circuit breaker
1763 4,740,770 Operating mechanism for a low voltage electrical circuit breaker
1764 4,740,768 Manual trip operator for molded case circuit breaker
1765 4,739,291 Magnetic vacuum circuit breaker
1766 4,739,137 High voltage sulfur hexafluoride circuit-breaker capable of operating at low outside temperatures
1767 4,739,136 Control device of a high voltage circuit breaker equipped with closing resistors
1768 4,737,607 Electrical circuit breaker with self-expansion and rotating arc
1769 4,737,606 Circuit breaker arc stack assembly
1770 4,736,174 Molded case circuit breaker operating mechanism
1771 4,736,080 Puffer type liquefied-gas self-injection circuit breaker
1772 4,736,079 Puffer type electrical circuit breaker having a high dielectric withstand
1773 4,733,321 Solid-state instantaneous trip device for a current limiting circuit breaker
1774 4,733,319 High-speed current limiting circuit breaker
1775 4,733,211 Molded case circuit breaker crossbar assembly
1776 4,733,033 Molded case circuit breaker contact arrangement including a spring clip contact arm retainer
1777 4,733,032 Electric circuit breaker arc chute composition
1778 4,731,921 Method of fabricating a molded case circuit breaker
1779 4,731,692 Circuit breaker trip solenoid assembly
1780 4,731,510 Circuit-breaker with tripping lever cooperating with movable contact support member having a resilient blade which effects contact opening and closure
1781 4,728,757 Interlock scheme for drawout high amperage multi-pole circuit breaker
1782 4,727,345 Contact arrangement for low voltage circuit breaker with a flexible current lead
1783 4,725,911 Electrical circuit breaker-contactor, notably for capacitor banks
1784 4,725,800 Circuit breaker with magnetic shunt hold back circuit
1785 4,725,799 Circuit breaker with remote control
1786 4,724,411 Circuit breaker
1787 4,724,391 Method for determining the time of reclosing a circuit breaker and device for carrying out this method
1788 4,720,769 Lighting circuit breaker panelboard modular assembly including circuit breaker support mounting brackets
1789 4,719,438 Circuit breaker with fast trip unit
1790 4,717,985 Circuit breaker with digitized solid-state trip unit with inverse time tripping function
1791 4,716,265 Circuit breaker with arc shielded contact arm
1792 4,714,975 Self-contained ground fault test feature in circuit breaker
1793 4,714,907 Miniature electrical circuit breaker with multiple moving contacts and thermomagnetic trip release
1794 4,713,728 Lighting circuit breaker panelboard modular assembly
1795 4,713,720 Fast acting solid state AC circuit breaker
1796 4,713,643 Low loss circuit breaker and actuator mechanism therefor
1797 4,713,640 Molded-case circuit breaker with improved contact arm assembly, toggle link means and arc shield component
1798 4,713,639 Circuit breaker with push-to-trip button and trip bar
1799 4,713,637 Stored energy circuit breaker with ratchet mechanism for charging a contact closing spring
1800 4,713,636 Circuit-breaker
Dead tank type gas circuit breaker
Multi-phase circuit breaker with interphase barrier retention
Contact material for vacuum circuit breaker
Circuit breaker contact arm with variable force pivot
Contact arrangement for a current limiting circuit breaker
Spiral arc circuit breaker
Molded case circuit breaker with movable upper electrical contact positioned by tension springs
Interlock arrangement for circuit breaker compartments
Circuit breaker control device
Time-delay current sensing circuit breaker relay
Power circuit breaker with opening and closing mechanisms
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