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Class Information
Number: 361/3
Name: Electricity: electrical systems and devices > Safety and protection of systems and devices > Arc suppression at switching point (i.e., includes solid-state switch) > Synchronized or sequential opening or closing
Description: Subject matter with means to open or close the switch at a predetermined time or in a predetermined sequence.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7345856 |
Method and apparatus for arc suppression in scanned ion beam processing equipment |
Mar. 18, 2008 |
| 7227732 |
Apparatus and method for controlling open/close timing of relay |
Jun. 5, 2007 |
| 7145757 |
System for eliminating arcing faults and power distribution system employing the same |
Dec. 5, 2006 |
| 7145758 |
Arc suppression circuit for electrical contacts |
Dec. 5, 2006 |
| 7023683 |
Electric relay control circuit |
Apr. 4, 2006 |
| 6960844 |
Electric switching device |
Nov. 1, 2005 |
| 6892115 |
Method and apparatus for optimized centralized critical control architecture for switchgear and power equipment |
May. 10, 2005 |
| 6818953 |
Protection of an integrated circuit against electrostatic discharges and other overvoltages |
Nov. 16, 2004 |
| 6693777 |
Method for controlling the operation of a switching device |
Feb. 17, 2004 |
| 6643112 |
Semiconductor switch-assisted electromechanical relay |
Nov. 4, 2003 |
| 6624989 |
Arc suppressing circuit employing a triggerable electronic switch to protect switch contacts |
Sep. 23, 2003 |
| 6466420 |
High voltage disconnector having a moving contact that is moved at high speed |
Oct. 15, 2002 |
| 6442452 |
Control apparatus for carrying out switching operations in a switchgear assembly |
Aug. 27, 2002 |
| 6347024 |
Hybrid power relay |
Feb. 12, 2002 |
| 6295188 |
Method of closing a circuit breaker synchronously |
Sep. 25, 2001 |
| 6130398 |
Plasma cutter for auxiliary power output of a power source |
Oct. 10, 2000 |
| 6078491 |
Hybrid relay |
Jun. 20, 2000 |
| 5933304 |
Apparatus and method of interrupting current for reductions in arcing of the switch contacts |
Aug. 3, 1999 |
| 5737160 |
Electrical switches comprising arrangement of mechanical switches and PCT device |
Apr. 7, 1998 |
| 5734207 |
Voltage polarity memory system and fuse-switch assembly usable therewith |
Mar. 31, 1998 |
| 5726843 |
Current limiting circuit breaker |
Mar. 10, 1998 |
| 5633540 |
Surge-resistant relay switching circuit |
May. 27, 1997 |
| 5627415 |
System and method for opening/closing circuit breakers |
May. 6, 1997 |
| 5530615 |
Method and apparatus for enhancing relay life |
Jun. 25, 1996 |
| 5528131 |
Controlled electric power switch and process for switching an electric power circuit |
Jun. 18, 1996 |
| 5523633 |
Corrosion preventing circuit for switch |
Jun. 4, 1996 |
| 5517378 |
Direct-current breaker for high power for connection into a direct-current carrying high-voltage line |
May. 14, 1996 |
| 5473494 |
Electrical power supply system |
Dec. 5, 1995 |
| 5406442 |
Solid state relay |
Apr. 11, 1995 |
| 5369540 |
Electric vehicle drive train with contactor protection |
Nov. 29, 1994 |
| 5359486 |
Method and circuit for synchronization of relay operation |
Oct. 25, 1994 |
| 5329417 |
Relay control circuit and method of operating same |
Jul. 12, 1994 |
| 5283706 |
Switching circuit |
Feb. 1, 1994 |
| 5233495 |
Device for protecting against operational overloads, at opening, for static relays with semi-conductors |
Aug. 3, 1993 |
| 5216567 |
Device for the alternating current cut-in limitation |
Jun. 1, 1993 |
| 5164872 |
Load circuit commutation circuit |
Nov. 17, 1992 |
| 5138514 |
Electrically operated control device and system for an appliance and methods of making the same |
Aug. 11, 1992 |
| 5136217 |
Method for switching current to successive sections of the stator of a long linear motor |
Aug. 4, 1992 |
| 5119261 |
Circuit arrangement for switching current to thyristors |
Jun. 2, 1992 |
| 5064998 |
Relay control apparatus |
Nov. 12, 1991 |
| 4956738 |
Very high speed circuit breaker assisted by semiconductors |
Sep. 11, 1990 |
| RE33314 |
Vending machine power switching apparatus |
Aug. 28, 1990 |
| 4922363 |
Contactor control system |
May. 1, 1990 |
| 4864157 |
Reduced arcing contact switching circuit |
Sep. 5, 1989 |
| 4745515 |
Electrically operated control device and system for an appliance and method of operating the same |
May. 17, 1988 |
| 4740858 |
Zero-current arc-suppression dc circuit breaker |
Apr. 26, 1988 |
| 4678927 |
Circuit arrangement for large power transformers |
Jul. 7, 1987 |
| 4652962 |
High speed current limiting circuit interrupter |
Mar. 24, 1987 |
| 4634842 |
Diagnostic testing arrangement for an electric cooking appliance incorporating commutated relay switching circuits |
Jan. 6, 1987 |
| 4628393 |
Method for switching in a three-phase high voltage circuit |
Dec. 9, 1986 |
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