| |
 |
|
Class Information
Number: 318/48
Name: Electricity: motive power systems > Plural, diverse or diversely controlled electric motors > Mechanically coupled in fixed ratio of movement > Mechanically coupled in torque opposition
Description: Subject matter in which one or more of the motors are connected to a rotary member so as to exert a torque therein in one direction and one or more others of the motors are connected to the same rotary member so as to exert torque therein in the opposite direction (either simultaneously or otherwise).
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6633143 |
Reactionless rotary drive mechanism |
Oct. 14, 2003 |
| 6580244 |
Active damping and backlash control for servo systems |
Jun. 17, 2003 |
| 6349606 |
Reduced backlash translating system |
Feb. 26, 2002 |
| 5804934 |
Power output apparatus and method of controlling the same |
Sep. 8, 1998 |
| 5729100 |
Method and apparatus for controlling backlash in motor drive systems |
Mar. 17, 1998 |
| 5704250 |
Ball screw drive with dynamically adjustable preload |
Jan. 6, 1998 |
| 5625262 |
System for equalizing the load of a plurality of motors |
Apr. 29, 1997 |
| 5311091 |
Low stiction dual drive, motive system |
May. 10, 1994 |
| 5047703 |
Motor driving device |
Sep. 10, 1991 |
| 4638221 |
Reaction force compensator |
Jan. 20, 1987 |
| 4594652 |
Digital audio differential drive system |
Jun. 10, 1986 |
| 4591772 |
Load positioning system with gravity compensation |
May. 27, 1986 |
| 4375047 |
Torque compensated electrical motor |
Feb. 22, 1983 |
| 4373147 |
Torque compensated electric motor |
Feb. 8, 1983 |
| 4323828 |
Apparatus for use with a motor drive |
Apr. 6, 1982 |
| 4225290 |
Pumping system |
Sep. 30, 1980 |
| 4219764 |
Apparatus for use with a motor drive |
Aug. 26, 1980 |
| 4126818 |
Hybrid stepping motor unit |
Nov. 21, 1978 |
| 3952235 |
Control system for electrodynamic mechanism |
Apr. 20, 1976 |
|
|
|
