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Class Information
Number: 361/28
Name: Electricity: electrical systems and devices > Safety and protection of systems and devices > Motor protective condition responsive circuits > With time delay
Description: Subject matter wherein the protective circuit responds to a fault condition only after a predetermined time.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7489484 |
Protective device for a controlling system of a sewage pump |
Feb. 10, 2009 |
| 7345859 |
Method and a control system for starting a motor |
Mar. 18, 2008 |
| 7265954 |
Method for estimating DC motor coil temperature, DC motor control method and their devices |
Sep. 4, 2007 |
| 6876166 |
Electric-motor drive |
Apr. 5, 2005 |
| 6563287 |
Method of controlling three phase motor starting sequence |
May. 13, 2003 |
| 6534947 |
Pump controller |
Mar. 18, 2003 |
| 6456034 |
Device for controlling the power supply of an electric starter motor of a motor vehicle and a starter unit containing such a device |
Sep. 24, 2002 |
| 6370002 |
Electromagnetic operation of the processing of objects |
Apr. 9, 2002 |
| 6188551 |
Method of controlling compressor for refrigerator |
Feb. 13, 2001 |
| 6075329 |
Speed control device for a ceiling fan |
Jun. 13, 2000 |
| 6054826 |
Backward drive control system for motorcycle |
Apr. 25, 2000 |
| 5995347 |
Method and apparatus for multi-function electronic motor protection |
Nov. 30, 1999 |
| 5862673 |
Operational control apparatus for home appliances and control method therefor |
Jan. 26, 1999 |
| 5838591 |
Temperature control apparatus for motor and information storing medium used therefor |
Nov. 17, 1998 |
| 5831804 |
Method and apparatus for controlling a contactor for powering a motor vehicle starter |
Nov. 3, 1998 |
| 5684662 |
Driving apparatus for stabilizing operation of an extensible-retractable power antenna |
Nov. 4, 1997 |
| 5684342 |
Starter with overload relay having power off cooling for multiple class loads |
Nov. 4, 1997 |
| 5668451 |
Method for monitoring the opening and closing process in a system having at least one component moved by electric motor |
Sep. 16, 1997 |
| 5663858 |
Method for fault correction in a power converter circuit arrangement |
Sep. 2, 1997 |
| 5598312 |
Device for controlling a mechanism driven by a lens one electric motor |
Jan. 28, 1997 |
| 5585990 |
Electronic motor protection apparatus |
Dec. 17, 1996 |
| 5579194 |
Motor starter with dual-slope integrator |
Nov. 26, 1996 |
| 5574346 |
On and off state fault detection circuit for a multi-phase brushed or brushless DC motor |
Nov. 12, 1996 |
| 5485363 |
Warm-up time delay system for relay controlled electrical power supply |
Jan. 16, 1996 |
| 5473497 |
Electronic motor load sensing device |
Dec. 5, 1995 |
| 5461531 |
Controller apparatus for electric vehicle |
Oct. 24, 1995 |
| 5455731 |
Power controller reset during load starting |
Oct. 3, 1995 |
| 5455469 |
Comparator controlled delay-on-break devices |
Oct. 3, 1995 |
| 5260634 |
Constant current driving system for a stepper motor in rotating disk |
Nov. 9, 1993 |
| 5222009 |
Solid state overload relay |
Jun. 22, 1993 |
| 5168415 |
Motor control method |
Dec. 1, 1992 |
| 5111123 |
Motor driver interface fault detection apparatus using initial turn-on and noise timers |
May. 5, 1992 |
| 4991049 |
Anti-short-cycle circuit |
Feb. 5, 1991 |
| 4939438 |
Relay control assembly |
Jul. 3, 1990 |
| 4884162 |
Method and apparatus for preventing the overheat of a line feed motor for a printer |
Nov. 28, 1989 |
| 4819123 |
Compressed air supply system |
Apr. 4, 1989 |
| 4725765 |
Method and apparatus for the protection of D.C. motors under stalled conditions |
Feb. 16, 1988 |
| 4694371 |
Protection circuit for stalling protection in commutatorless direct current motors |
Sep. 15, 1987 |
| 4682263 |
Electrical short-cicruit monitoring arrangement for variable-speed, three-phase motors, including their feed lines |
Jul. 21, 1987 |
| 4593338 |
Constant-voltage power supply circuit |
Jun. 3, 1986 |
| 4508976 |
Adjustable frequency drive |
Apr. 2, 1985 |
| 4504881 |
Protective circuit for an electric motor |
Mar. 12, 1985 |
| 4410845 |
Backspin detection circuit for a submersible pump |
Oct. 18, 1983 |
| 4369401 |
Valve position monitor and control system |
Jan. 18, 1983 |
| 4334181 |
Motor brake |
Jun. 8, 1982 |
| 4224651 |
Monitoring a signal |
Sep. 23, 1980 |
| 4156262 |
Overload-protection circuit for electric motors |
May. 22, 1979 |
| 4104688 |
Starter motor protector circuit |
Aug. 1, 1978 |
| 4062052 |
Circuit breaker with improved delay |
Dec. 6, 1977 |
| 4042964 |
Motor protection circuit |
Aug. 16, 1977 |
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