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Class Information
Number: 318/114
Name: Electricity: motive power systems > Impact, mechanical shock, or vibration-producing motors
Description: Subject matter in which (1) means are provided for actuating one or more parts of an electric motor relative to and into impact or percussive contact with one or more other parts which are either parts of the motor structure or are structurally combined with the motor (i.e., not merely other parts which constitute a device or work piece to be operated on by the motor and to which the motor may be attached or relatively positioned temporarily); or (2) the motor is a shock or vibration producing type of motor the prime or essential function of which motor is to transmit mechanical shock or vibrations to a mechanism or device upon which the motor may be supported or to which the motor may be clamped or otherwise secured.

Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
8659245 Active vibration control apparatus Feb. 25, 2014
8590875 Machine having an air bearing and method for operating such a machine Nov. 26, 2013
8581529 Vibration motor driving apparatus using a serial interface Nov. 12, 2013
8581538 Drive control circuit for linear vibration motor Nov. 12, 2013
8564226 Method and system for ultrasound excitation of structures with various arbitrary geometry Oct. 22, 2013
8558488 Vibration-type motor controller and optical apparatus Oct. 15, 2013
8547048 Drive control circuit for linear vibration motor Oct. 1, 2013
8531139 Drive control circuit for linear vibration motor Sep. 10, 2013
8508164 Vibration and noise control strategy in electrical machines Aug. 13, 2013
8427082 Method for absorbing the displacement of a plunger in a linear electrodynamic motor under the influence of an external force Apr. 23, 2013
8415903 Ultrasonic motor Apr. 9, 2013
8412179 Method of configuring power tool electronics in a hand-held power tool Apr. 2, 2013
8390218 Synchronized vibration device for haptic feedback Mar. 5, 2013
8384316 Synchronized vibration device for haptic feedback Feb. 26, 2013
8378598 Motor control apparatus and motor control method Feb. 19, 2013
8368327 System and method for maintaining performance of battery-operated toothbrushes Feb. 5, 2013
8248003 Vibration frequency adjusting system and method Aug. 21, 2012
8203290 Vibrating element Jun. 19, 2012
8203299 Machine tool or production machine with signal generation by means of direct drive and method for generating signals in such a machine Jun. 19, 2012
8143817 Electromagnetic actuator driving method Mar. 27, 2012
8143818 Ultrasonic motorized stage Mar. 27, 2012
8138693 Vibration isolation control system Mar. 20, 2012
8115440 Method and apparatus for position-accurate triggering of a machine part Feb. 14, 2012
8084968 Use of an accelerometer to control vibrator performance Dec. 27, 2011
8081066 Damage-resistant vibrator assemblies and wireless communications devices incorporating same Dec. 20, 2011
7994741 Vibration device Aug. 9, 2011
7915842 Actuator drive control device Mar. 29, 2011
7888892 Mobile electronic apparatus having a rechargeable storage device Feb. 15, 2011
7663275 Linear compressor controller Feb. 16, 2010
7656115 Calibrating stepper motor by driving fractional ranges Feb. 2, 2010
7638958 Powered surgical tool with control module that contains a sensor for remotely monitoring the tool power generating unit Dec. 29, 2009
RE41035 Magnetic bearing device with vibration restraining function, magnetic bearing device with vibration estimating function, and pump device with the magnetic bearing devices mounted thereto Dec. 15, 2009
7553295 Liquid infusion apparatus Jun. 30, 2009
7493931 Vibrating tile setting tool Feb. 24, 2009
7468588 Apparatus and method for controlling operation of reciprocating compressor Dec. 23, 2008
7385362 Method for driving a vibrating device for a portable object that comprises a coil and a moving mass Jun. 10, 2008
7358691 Vibration device Apr. 15, 2008
7298100 Driving apparatus for vibration type actuator and driving method for vibration type actuator Nov. 20, 2007
7268504 Stator position feedback controller Sep. 11, 2007
7268503 Vibration linear actuating device, method of driving the same device, and portable information apparatus using the same device Sep. 11, 2007
7265506 Noise improved linear DC motor control systems and methods Sep. 4, 2007
7253576 E/I core actuator commutation formula and control method Aug. 7, 2007
7235936 Linear vibration motor Jun. 26, 2007
7151348 Motor driving apparatus Dec. 19, 2006
7148636 Motor drive control apparatus Dec. 12, 2006
7112931 Motor control device and motor control method Sep. 26, 2006
7061156 Control apparatus for vibration type actuator Jun. 13, 2006
7005810 Motor driving apparatus Feb. 28, 2006
7005811 Bodily sensed vibration generator system Feb. 28, 2006
6987345 Vibration type actuator drive controller and method of controlling drive speed of vibration type actuator Jan. 17, 2006

1 2 3 4

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