Matches 201 - 250 out of 253 < 1 2 3 4 5 6 >
Match Document Document Title
3450894 SURGE SUPPRESSING MEANS FOR STATIC CIRCUIT BREAKERS  
3449591 HIGH-SPEED SWITCHING SYSTEM  
3431466 ARC-SUPPRESSING CIRCUIT FOR SWITCHING DEVICES IN ALTERNATING CURRENT CIRCUIT  
3430062 SWITCHING CIRCUIT FOR HIGH-VOLTAGE DIRECT-CURRENT  
3430016 ELECTRIC CURRENT INTERRUPTING DEVICE  
3430063 SOLID STATE SWITCH  
3418529 Control circuit for protective device  
3416002 Current converter circuit with controlled rectifier element  
3395316 Electric switch with contact protector  
3389301 Arc suppressing circuit  
3382412 Electric circuit breaker comprising ceramic capacitor elements connected in parallel with its contacts  
3381210 Alternator-regulator system with arc reduction means  
3376474 Arc suppression circuit and compound impedance element for use therein  
3375431 Battery charging systems for road vehicles  
3372303 A. c. switch contacts  
3359458 Soft start circuit for process control  
3355633 Controllable supply circuit for electromagnetic vibrators  
3346780 Controllable supply or feed circuit for electromagnetic vibrators  
3339110 Relay circuits  
3330992 Electric switch  
3325611 Safety mechanism for stopping a machine  
3321668 Current control apparatus  
3296518 Protective arrangement for semiconductor rectifiers  
3286166 Apparatus for non-destructive testing of enclosed relays for parasitic arc susceptibility by controlling the current-time integral of the arc  
3267290 Series connected controlled rectifiers fired by particular-pulse generating circuit  
3252014 Switching device with arc suppressor  
3227924 High voltage power circuit breaker pole units having series breaks  
3218422 Compressed gas circuit breaker having a spherical metal reservoir forming part of an arcing gap  
3198986 High voltage switching apparatus  
3192440 Load switch with parallel connected capacitors  
3184619 Contact noise suppressor  
3173029 Voltage surge and modulation limiter  
3155847 Circuit for protecting a load circuit from initial power supply voltage transients  
3147356 Circuits for switches having series connected interrupter sections  
3118102 Diode rectifier with overvoltage protection  
3072766 Electrical resistance for heavy duty swith  
2977488 Circuit arrangement for the control of direct current motors  
2958808 Electrical arc suppressor  
2928027 Electric circuit for direct current electromagnetic contactors  
2892913 Air blast switch with auxiliary point of interruption for shunt resistance  
2889492 Switching circuits and methods  
2873419 Arc-back prevention circuit  
2866032 Combination fuse cutout and switch  
2864976 Protection circuits for activated contacts  
2854660 Horn circuit  
2849659 Direct-current and alternatingcurrent circuit interrupters  
2845580 Electric protective equipment  
2842717 Arrangement for relieving electrical switching contacts of current  
2828392 High voltage switching arrangement  
2813166 Automatic sectionalizing switch  
Matches 201 - 250 out of 253 < 1 2 3 4 5 6 >