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Class Information
Number: 318/45
Name: Electricity: motive power systems > Plural, diverse or diversely controlled electric motors > Mechanically coupled in fixed ratio of movement
Description: Subject matter in which means are provided for coupling, mechanically, the driving or output members of two or more motors in a fixed or predetermined ratio of movement.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7538501 |
Power system comprising several synchronous machines synchronously self-controlled by a converter and control method for such a system |
May. 26, 2009 |
| 7417386 |
Electronic line shaft |
Aug. 26, 2008 |
| 7359783 |
Method of detecting obstructions caused by motor-driven power windows and similar devices using fuzzy logic algorithms |
Apr. 15, 2008 |
| 7298104 |
System for electrically regulating the movement transmission device for a motor vehicle |
Nov. 20, 2007 |
| 7205730 |
Article transport vehicle |
Apr. 17, 2007 |
| 7202616 |
Synchronous control method and device of the same |
Apr. 10, 2007 |
| 7187142 |
Motor drive with velocity noise filter |
Mar. 6, 2007 |
| 6943523 |
Brushless motor control system |
Sep. 13, 2005 |
| 6837202 |
Engine starter for remote-controlled model airplane |
Jan. 4, 2005 |
| 6832119 |
Methods and systems for torque ripple compensation |
Dec. 14, 2004 |
| 6819017 |
Method and apparatus for fan redundancy |
Nov. 16, 2004 |
| 6734645 |
Electric powered vehicle |
May. 11, 2004 |
| 5838121 |
Dual blade robot |
Nov. 17, 1998 |
| 5804933 |
Method for operating an adjusting apparatus and means for adjusting a positional device |
Sep. 8, 1998 |
| 5789878 |
Dual plane robot |
Aug. 4, 1998 |
| 5708332 |
Dual motor drive system |
Jan. 13, 1998 |
| 5491390 |
Electric propulsion system for a bicycle |
Feb. 13, 1996 |
| 5420486 |
Multiple motors controllers |
May. 30, 1995 |
| 5420485 |
Uncoordinated machine initialization system and method |
May. 30, 1995 |
| 5166582 |
Drive arrangement of an open-end spinning machine |
Nov. 24, 1992 |
| 4939431 |
Control system for synchronous rotation of cutter heads, for use in shield machine |
Jul. 3, 1990 |
| 4798999 |
Numerically controlled electromechanical precision drive system |
Jan. 17, 1989 |
| 4788476 |
Machine for lapping two curved-tooth bevel gears |
Nov. 29, 1988 |
| 4689527 |
Double driving device for machines |
Aug. 25, 1987 |
| 4683407 |
Authority limiter |
Jul. 28, 1987 |
| 4585977 |
Electronic motor |
Apr. 29, 1986 |
| 4525655 |
Two stage electric drive |
Jun. 25, 1985 |
| 4350936 |
Cascaded fin winding machine control and method |
Sep. 21, 1982 |
| 4346334 |
DC Servomotor system |
Aug. 24, 1982 |
| 4323828 |
Apparatus for use with a motor drive |
Apr. 6, 1982 |
| 4300078 |
Method of constructing models of rotary electrical machines to provide simultaneous similitude of electromagnetic, thermal and mechanical working conditions of the rotor |
Nov. 10, 1981 |
| 4222512 |
Device for controlling rotary motion |
Sep. 16, 1980 |
| 4152994 |
Frame positioning device for automatic stitching apparatus |
May. 8, 1979 |
| 4122377 |
Variable speed, alternating current motor unit and methods and apparatus for speed control of same |
Oct. 24, 1978 |
| 4093896 |
Speed control for rotatable element driven by direct current motors |
Jun. 6, 1978 |
| 4032824 |
Variable-speed 3-phase drive |
Jun. 28, 1977 |
| 3959699 |
Bi-directional motor drive system |
May. 25, 1976 |
| 3950686 |
Series redundant drive system |
Apr. 13, 1976 |
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