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Class Information
Number: 318/8
Name: Electricity: motive power systems > With particular motor-driven load device > Plural, diverse or diversely controlled driving motors (e.g., driving differential gearing)
Description: Subject matter in which two or more electric motors are employed to drive a particular load device and in which one or more of the motors (1) are substantially different, structurally, or (2) are controlled or operated differently with respect to time, load, speed, etc., from one or more other of the motors.


Patents under this class:

Patent Number Title Of Patent Date Issued
7583036 Electrically driven vehicle Sep. 1, 2009
7205730 Article transport vehicle Apr. 17, 2007
7026780 Method for stabilizing the movement of an articulated chain of a chain block, especially to prevent the formation of a resonance oscillation of the chain, and a chain block apparatus Apr. 11, 2006
6759818 Electromotive actuator and method for controlling the same Jul. 6, 2004
6680589 Relay contact monitoring device Jan. 20, 2004
6583590 String drawing device for a racquet Jun. 24, 2003
6361600 Film forming apparatus and film forming method Mar. 26, 2002
6300732 Dual power unit for movement of a back and footrest in armchairs and the like Oct. 9, 2001
6208096 Optimized winding drive Mar. 27, 2001
6157147 Power transmission apparatus Dec. 5, 2000
6005297 Power output apparatus and method of controlling the same Dec. 21, 1999
5936312 Power output apparatus and method of controlling the same Aug. 10, 1999
5804934 Power output apparatus and method of controlling the same Sep. 8, 1998
5701066 Control system for an induction motor Dec. 23, 1997
5606235 Industrial robot with integrated reduction gear units Feb. 25, 1997
5537011 Method and apparatus for promoting even wear in a multiple-motor drivetrain Jul. 16, 1996
5493185 Method for animating motor-driven puppets and the like and apparatus implementing the method Feb. 20, 1996
5374879 Omni-directional and holonomic rolling platform with decoupled rotational and translational degrees of freedom Dec. 20, 1994
5331266 Cooperative differential drive system Jul. 19, 1994
5134346 Apparatus for driving a spindle of an electroerosive machine Jul. 28, 1992
5019755 Electric motor drive system May. 28, 1991
4760314 Rotation controller for a differential actuator Jul. 26, 1988
4591772 Load positioning system with gravity compensation May. 27, 1986
4525655 Two stage electric drive Jun. 25, 1985
4424473 Drive apparatus for an industrial robot Jan. 3, 1984
4289996 Actuators Sep. 15, 1981
4219764 Apparatus for use with a motor drive Aug. 26, 1980
4173029 Protective circuit for selectively applying power to a motor Oct. 30, 1979
RE30091 Automatically guiding workpieces through a machine Sep. 4, 1979
4103210 Draw twisting machine Jul. 25, 1978
4093896 Speed control for rotatable element driven by direct current motors Jun. 6, 1978
4087731 Control system for moving a large machine along a single axis May. 2, 1978
4035705 Fail-safe dual channel automatic pilot with maneuver limiting Jul. 12, 1977
3940677 Direct-current stepping motor drive system Feb. 24, 1976



 
 
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