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Class Information
Number: 318/612
Name: Electricity: motive power systems > Positional servo systems (e.g., servomechanisms) > With stabilizing features (e.g., anti-hunting, damping) > Electric braking near balance (e.g., dynamic)
Description: Subject matter in which the stabilizing means is by electrical means such as dynamic braking of the servo motors as the system approaches balance. Dynamic braking is forcing the motor to act as a generator which thus absorbs its rotational energy.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7291997 |
Servo system |
Nov. 6, 2007 |
| 7180255 |
Controlling the release of a brush motor which has applied a load |
Feb. 20, 2007 |
| 7005816 |
Electromagnetic suspension system for vehicle |
Feb. 28, 2006 |
| 6900609 |
Method and control structure for damping low-frequency load oscillations in drives with a motor and load |
May. 31, 2005 |
| 6801010 |
Vibration suppression positioning controller |
Oct. 5, 2004 |
| 6441573 |
Blended electrical/friction braking system with electric brake feedback monitor and method of use thereof |
Aug. 27, 2002 |
| 6084374 |
Controller and filter used therein |
Jul. 4, 2000 |
| 5777814 |
Apparatus for preventing picture fluctuation and correcting pulse in video cassette recorder |
Jul. 7, 1998 |
| 4914366 |
Positioning control system |
Apr. 3, 1990 |
| 4570113 |
Rotary member control |
Feb. 11, 1986 |
| 4417312 |
Electronic controller for valve actuators |
Nov. 22, 1983 |
| 4345193 |
Driver for postage meters |
Aug. 17, 1982 |
| 4329633 |
Motion damping apparatus |
May. 11, 1982 |
| 4328450 |
Closed loop velocity control system for a movable element |
May. 4, 1982 |
| 4316131 |
Control apparatus of flying shears |
Feb. 16, 1982 |
| 4246525 |
Motor control system |
Jan. 20, 1981 |
| 4216422 |
Solid state motor control circuit providing a dynamic braking function |
Aug. 5, 1980 |
| 4201935 |
Method and apparatus for controlling the feed of machine tools |
May. 6, 1980 |
| 4193022 |
Analog/digital numerical control system |
Mar. 11, 1980 |
| 4130787 |
Reliability monitoring system |
Dec. 19, 1978 |
| 4088938 |
Electronic apparatus for positioning and using AC motors |
May. 9, 1978 |
| 4023080 |
Phase synchronizing circuit |
May. 10, 1977 |
| 3995208 |
Control circuit |
Nov. 30, 1976 |
| 3940676 |
Damping control for positioning apparatus |
Feb. 24, 1976 |
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