Matches 1 - 37 out of 37


Match Document Document Title
6696857 High speed CMOS dual modulus prescaler using pull down transistor  
The present invention provides a circuit and a method for high speed prescaler circuits which utilize pull-down transistors in the critical feedback path. This invention contains a high speed CMOS...
4862131 Trip crossbar translation to prevent bimetal overstressing in a circuit breaker  
A circuit breaker for breaking current conduction between line and load connectors in response to tripping of a bimetallic thermal element as a result of an over-current condition is disclosed....
4829278 Circuit breaker trip bar interlock  
A trip bar interlock for a circuit breaker characterized by an electrically insulating housing having an apertured bottom wall. A rotatable trip bar is in the housing for releasably holding the...
4342974 Multipolar type circuit breaker  
A multipolar type circuit breaker has a plurality of breaker element assemblies corresponding to AC source pole number. Each assembly comprises a contact operating mechanism for ON and OFF...
4128822 Polyphase circuit breaker having improved trip crossbar assembly  
The following specification describes a circuit breaker trip crossbar having diverging radial surfaces receiving a tapered rail therebetween. The rail extends from the bottom edge of the...
4079345 Multi-pole excess current circuit breaker  
A multi-pole excess current circuit breaker assembly has a plurality of single-pole circuit breakers. In each of the latter the electric contacts are openable by a spring-loaded tripping mechanism...
3761854 OVERCURRENT RELEASE OF ELECTRIC SWITCH IN PARTICULAR OF SWITCH BREAKER  
A circuit breaker provided with a thermal and electromagnetic element has two levers and two torsion springs. The torsion springs are prestressed and exert on the levers oppositely-directed forces,...
3743992 THERMALLY RESPONSIVE ELECTRICAL CONTROL DEVICE FOR POLYPHASE CURRENTS  
An electrical control device or overload relay characterized by relatively movable contacts with means for operating the contacts between open and closed positions and comprising an actuating bar,...
3464045 CIRCUIT BREAKER SELECTIVE TRIP MECHANISM  
3426301 INTERCONNECTED MULTIPOLE CIRCUIT BREAKER  
3355685 Electric circuit breaker having improved operating means  
3350525 Circuit breaker resetting mechanism  
3345591 Electric circuit breaker with improved tripping means including a heater strip in the thermal tripping means and adjustable air gaps in the magnetic tripping means  
3324264 Circuit breaker mechanism with improved mounting arrangement for auxiliary features  
3309479 Electric circuit breaker operating mechanism  
3288964 Spring trip multi-phase overload relay having a u-shaped bimetal with a pivot pin at its web portion  
3274357 Circuit breaker having ambient temperature compensation  
3265834 Pushbutton-controlled polyphase overload circuit breaker  
3264435 Circuit breaker with removable trip unit having improved mounting means for terminal strap and thermal responsive means  
3171932 Multipole electric circuit breaker with common tripping means  
3152287 Adaptation of multipole circuit breaker for double current rating  
3136921 Circuit breakers  
3110778 Automatic trip device for plug-in circuit breaker  
3102933 Multipolar circuit maker and breaker  
3095524 Panelboard adapter  
3089933 Multiple circuit breaker  
3043939 Separate phase directed venting  
3032631 Circuit breaker having electrical and mechanical coordination with a current limiting device  
3024664 Rotary handle mechanism  
3022403 Thermally controlled switch  
3009038 Circuit interrupter  
2996589 Pivoted bimetal  
2952758 Thermal circuit breaker  
2920241 Circuit interrupters with back-up current-limiting fuses  
2913542 Two pole circuit breaker  
2908782 Circuit breaker  
2845507 Overcurrent device for circuit breakers  
Matches 1 - 37 out of 37