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Class Information
Number: 318/445
Name: Electricity: motive power systems > Automatic and/or with time-delay means (e.g., automatic starting and/or stopping)
Description: Subject matter in which (1) means are provided for sensing the existence of or the magnitude of a predetermined condition (e.g., temperature, time, speed of a device, etc.) combined with means for controlling the motor and in which the sensing means initiates the operation of the motor control means upon the occurrence of the predetermined condition; and/or (2) in which time-delay or retarding means are provided for retarding or delaying the operation of the motor control means whether the operation is initiated manually or automatically.










Sub-classes under this class:

Class Number Class Name Patents
318/448 Anti-hunting 59
318/478 Electrical conditions in circuit other than controlled motor circuit 44
318/482 Level of fluid or granular material 35
318/483 Moisture content or wetness 244
318/474 Motor load, armature or primary or secondary circuit current 84
318/466 Movement, position, or limit-of-travel 872
318/447 Nonresponsive or less responsive for limited periods 45
318/452 Plural, diverse conditions or with time-delay means 72
318/481 Pressure in a fluid or granular material 53
318/480 Radiant energy 265
318/456 Rate-of-change of a condition 39
318/489 Responsive to direction, inclination or angular position of bodies 68
318/488 Responsive to stress in body or material 48
318/471 Responsive to thermal conditions 452
318/460 Sound, supersonic vibration or mechanical vibration 99
318/461 Speed or rate-of-movement 228
318/459 Terminal voltage or counter-electromotive force of controlled motor 171
318/484 Time or with time-delay means 167
318/446 With nonautomatic control means (e.g., manual) 123
318/449 With respect to a fixed standard, master or reference device 43


Patents under this class:
1 2 3 4 5 6 7 8

Patent Number Title Of Patent Date Issued
8710784 Vehicle seating system and method for reducing fatigue with changing actuator movement Apr. 29, 2014
8675321 Start test electronic device and system and method of use thereof Mar. 18, 2014
8659260 Motor drive apparatus and electric power steering apparatus using the same Feb. 25, 2014
8643383 Drive failure protection Feb. 4, 2014
8633780 PWM control circuit and motor equipped with the same Jan. 21, 2014
8633666 Method and device for activating monitoring by a jamming protection function in an electrical closing system Jan. 21, 2014
8605393 Compressor protection and grid fault detection device Dec. 10, 2013
8598825 Lead angle control circuit, and motor drive device and motor drive system using the lead angle control circuit Dec. 3, 2013
8581530 Electronic self-locking device for a windscreen wiping device Nov. 12, 2013
8569985 Wiper control apparatus Oct. 29, 2013
8564235 Self-adjusting door closer Oct. 22, 2013
8558493 Blower motor for HVAC systems Oct. 15, 2013
8558496 Systems and methods for monitoring current in an electric motor Oct. 15, 2013
8508167 Actuation device Aug. 13, 2013
8502489 Motor control device Aug. 6, 2013
8487570 Method and device for operating an electric drive with the aid of a phase angle control Jul. 16, 2013
8482236 Method and circuit for controlling motor speed Jul. 9, 2013
8432117 Automated shade control system Apr. 30, 2013
8418930 Temperature control circuit Apr. 16, 2013
8405337 Method of controlling an automatic door system Mar. 26, 2013
8390229 Washing machine with improved method of braking to a non-zero speed Mar. 5, 2013
8390221 Systems and methods for protecting three-phase motors Mar. 5, 2013
8378609 Safety device for an actuating system for roller shutters or sliding barriers Feb. 19, 2013
8368329 Method and apparatus for improved cooling fans Feb. 5, 2013
8358501 Motherboard, fan control device, and fan control circuit Jan. 22, 2013
8339084 Systems and methods for monitoring current in an electric motor Dec. 25, 2012
8324854 Fan control system Dec. 4, 2012
8324855 Fan control system Dec. 4, 2012
8314582 Method of controlling motor in image reading apparatus Nov. 20, 2012
8296896 Wiper driving apparatus for automobile Oct. 30, 2012
8289113 Modular soft starter Oct. 16, 2012
8264183 Windshield wiper control unit and windshield wiper control method Sep. 11, 2012
8253363 Automatic opening-and-closing lid for garbage bin Aug. 28, 2012
8248013 Fan device with improved speed control module and plural fan system constructed thereby Aug. 21, 2012
8217611 Automated refrigerator opener Jul. 10, 2012
8198849 Method and device for protection against jamming in a motor-driven locking system Jun. 12, 2012
8198848 System and method for compensating characteristics of a fan Jun. 12, 2012
8179070 Method of controlling a reversible electric machine May. 15, 2012
8174227 Fan control system May. 8, 2012
8174228 Motor control device May. 8, 2012
8143832 Method and unit for operating an electromechanical adjusting device Mar. 27, 2012
8143964 Method for generating a PWM signal Mar. 27, 2012
8129930 Induction actuated container Mar. 6, 2012
8120292 Automated shade control reflectance module Feb. 21, 2012
8106622 Control system for multiphase rotary machines Jan. 31, 2012
8098037 Vehicle door opening-closing apparatus Jan. 17, 2012
8093851 Fan module and system Jan. 10, 2012
8084981 Rechargeable electric power tool Dec. 27, 2011
8080952 Hands free waste flap apparatus and method Dec. 20, 2011
8080962 Motorised barrier roller Dec. 20, 2011

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