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Class Information
Number: 361/23
Name: Electricity: electrical systems and devices > Safety and protection of systems and devices > Motor protective condition responsive circuits
Description: Subject matter including means to sense an abnormal condition or change of condition of a motor or its circuitry and to remove the fault condition.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7622876 |
Overload prevention device for permanent magnet DC motors |
Nov. 24, 2009 |
| 7623326 |
Method and device for switching off an inductive load in a failsafe manner |
Nov. 24, 2009 |
| 7619859 |
Electric power steering device |
Nov. 17, 2009 |
| 7609491 |
Clothes dryer motor with broken belt switch |
Oct. 27, 2009 |
| 7608940 |
Power supply device and method of controlling the same |
Oct. 27, 2009 |
| 7606011 |
Motor controller with automated input power determination |
Oct. 20, 2009 |
| 7602594 |
Motor control apparatus and motor control method |
Oct. 13, 2009 |
| 7586722 |
High voltage interlock system and control strategy |
Sep. 8, 2009 |
| 7586726 |
Switching element overcurrent protection circuit which operates within a high-voltage system that incorporates the switching element |
Sep. 8, 2009 |
| 7583483 |
Vehicle AC ground fault detection system |
Sep. 1, 2009 |
| 7565267 |
Life prediction and monitoring of components |
Jul. 21, 2009 |
| 7561386 |
Switch monitoring circuit |
Jul. 14, 2009 |
| 7558031 |
Intelligent automatic bypass for a motor control device |
Jul. 7, 2009 |
| 7551411 |
Control and protection methodologies for a motor control module |
Jun. 23, 2009 |
| 7545613 |
Method of controlling seatbelt retracting device with motor |
Jun. 9, 2009 |
| 7545056 |
Saturation control of electric machine |
Jun. 9, 2009 |
| 7542251 |
Auto-protected power modules and methods |
Jun. 2, 2009 |
| 7538992 |
System, device, and method for over-current relays protecting motors |
May. 26, 2009 |
| 7535684 |
Overspeed protection for sensorless electric drives |
May. 19, 2009 |
| 7531983 |
Method of controlling startup current of motor and disk drive using the method |
May. 12, 2009 |
| 7518837 |
Control device for soft starting and protecting overload of motor |
Apr. 14, 2009 |
| 7518838 |
Protection of variable frequency power systems from excessive peak electrical potentials |
Apr. 14, 2009 |
| 7504793 |
DC motor driving method for reducing adverse RF interferences and application to a vehicle lighting or signaling device |
Mar. 17, 2009 |
| 7489483 |
System and method for look ahead detection of electrical problems at a motor of a vehicle |
Feb. 10, 2009 |
| 7489484 |
Protective device for a controlling system of a sewage pump |
Feb. 10, 2009 |
| 7486489 |
System and method for speed control and stall protection combination for electric motors such as in engine cooling applications |
Feb. 3, 2009 |
| 7486490 |
Actuator for the actuation of a clutch and/or a gear mechanism |
Feb. 3, 2009 |
| 7477493 |
Alternator control device for vehicle |
Jan. 13, 2009 |
| 7474070 |
Electric power steering apparatus |
Jan. 6, 2009 |
| 7463464 |
Method and apparatus for sensing brushless DC motor average current from overcurrent protection circuitry |
Dec. 9, 2008 |
| 7459814 |
Hybrid induction motor |
Dec. 2, 2008 |
| 7450356 |
Rotation speed controller for fans |
Nov. 11, 2008 |
| 7450355 |
Power supply apparatus with function of detecting abnormality of current sensor |
Nov. 11, 2008 |
| 7446491 |
Intelligent power management for actuators |
Nov. 4, 2008 |
| 7446989 |
Device for protection of the bearing of an electrical machine against damaging passage of current |
Nov. 4, 2008 |
| 7443642 |
Electric motor control |
Oct. 28, 2008 |
| 7433164 |
Ceiling fan motor control module |
Oct. 7, 2008 |
| 7426099 |
Controller method, apparatus and article suitable for electric drive |
Sep. 16, 2008 |
| 7425805 |
Three-in-one control device for a ceiling fan |
Sep. 16, 2008 |
| 7417388 |
Running machine with wheels |
Aug. 26, 2008 |
| 7400104 |
Voltage converting device, computer readable recording medium with program recorded thereon for causing computer to execute failure processing, and failure processing method |
Jul. 15, 2008 |
| 7397222 |
On-line testable solid state reversing DC motor starter |
Jul. 8, 2008 |
| 7394629 |
Motor overload tripping system and method with multi-function circuit interrupter |
Jul. 1, 2008 |
| 7385795 |
Cordless power tool with a protected weak link element |
Jun. 10, 2008 |
| 7383133 |
Diffuse seismic imaging systems and methods |
Jun. 3, 2008 |
| 7375934 |
Power converter controlling apparatus and method applying a fault protection scheme in a motor drive system |
May. 20, 2008 |
| 7372686 |
Power supply apparatus capable of detecting abnormality in current flowing in drive circuit |
May. 13, 2008 |
| 7372676 |
Motor coil-shorting detecting unit |
May. 13, 2008 |
| 7369378 |
Electric motor driving apparatus |
May. 6, 2008 |
| 7369383 |
Protective circuit |
May. 6, 2008 |
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