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Class Information
Number: 335/258
Name: Electricity: magnetically operated switches, magnets, and electromagnets > Magnets and electromagnets > With magneto-mechanical motive device (e.g., electromagnet with armature) > With plunger-type armature > With armature stroke adjustment
Description: Subject matter including means to adjust the distance of the armature movement when the electromagnet is energized.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7091808 |
Solenoid |
Aug. 15, 2006 |
| 6918571 |
Solenoid operated valve assembly and method of making same |
Jul. 19, 2005 |
| 6840497 |
Electromagnet for actuating a hydraulic valve |
Jan. 11, 2005 |
| 6720853 |
Electrically operated solenoid having an adjustable actuator pin length |
Apr. 13, 2004 |
| 6683519 |
Actuation device |
Jan. 27, 2004 |
| 6556114 |
Electromagnetic actuator equipped with means for adjusting its mobile polar element |
Apr. 29, 2003 |
| 6469500 |
Method for determining the position and/or speed of motion of a control element that can be moved back and forth between two switching positions |
Oct. 22, 2002 |
| 6443422 |
Apparatus and method for adjusting an actuator on a real-time basis |
Sep. 3, 2002 |
| 6404314 |
Adjustable trip solenoid |
Jun. 11, 2002 |
| 6344702 |
Simplified torque motor |
Feb. 5, 2002 |
| 6310530 |
Device for emergency hand operation with switching magnets |
Oct. 30, 2001 |
| 6304161 |
Electromagnetic actuator, particularly for driving an engine valve |
Oct. 16, 2001 |
| 6265957 |
Electromagnetic actuator equipped with two return springs |
Jul. 24, 2001 |
| 6082315 |
Electromagnetic valve actuator |
Jul. 4, 2000 |
| 5992822 |
Air control valve |
Nov. 30, 1999 |
| 5952904 |
Relay adjustment structure and methods |
Sep. 14, 1999 |
| 5950605 |
Automotive emission control valve having opposing pressure forces acting on the valve member |
Sep. 14, 1999 |
| 5804962 |
Method of adjusting the position of rest of an armature in an electromagnetic actuator |
Sep. 8, 1998 |
| 5586747 |
Adjustable solenoid valve with improved stability |
Dec. 24, 1996 |
| 5503366 |
Electromagnetically actuated valve |
Apr. 2, 1996 |
| 5473298 |
Torque motor |
Dec. 5, 1995 |
| 5424704 |
Solenoid valve with a tubular metallic core |
Jun. 13, 1995 |
| 5407174 |
Proportional electropneumatic solenoid-controlled valve |
Apr. 18, 1995 |
| 5301921 |
Proportional electropneumatic solenoid-controlled valve |
Apr. 12, 1994 |
| 5300908 |
High speed solenoid |
Apr. 5, 1994 |
| 5204652 |
Adjustable bleed system for a universal solenoid for fluid control valves |
Apr. 20, 1993 |
| 5202658 |
Linear proportional solenoid |
Apr. 13, 1993 |
| 5144272 |
Electromagnetic solenoid for oil hydraulic control valves |
Sep. 1, 1992 |
| 5138291 |
Proportional solenoid actuator |
Aug. 11, 1992 |
| 5028856 |
Controlled linear motor |
Jul. 2, 1991 |
| 5006901 |
Electromagnet with plunger |
Apr. 9, 1991 |
| 4954799 |
Proportional electropneumatic solenoid-controlled valve |
Sep. 4, 1990 |
| 4910419 |
Overload detection mechanism for motor-driven linear actuator |
Mar. 20, 1990 |
| 4907779 |
Electro-magnetically operated valve devices |
Mar. 13, 1990 |
| 4906880 |
Electromagnetic valve having reduced hysteresis |
Mar. 6, 1990 |
| 4878650 |
Armature with shear stress damper |
Nov. 7, 1989 |
| 4829275 |
Method and means for providing consistent operation of a solenoid actuator |
May. 9, 1989 |
| 4812795 |
Electromagnetic devices having selectively movable core winding |
Mar. 14, 1989 |
| 4812884 |
Three-dimensional double air gap high speed solenoid |
Mar. 14, 1989 |
| 4766405 |
Dynamic energy absorber |
Aug. 23, 1988 |
| 4763091 |
Air gap setting device for electromagnets |
Aug. 9, 1988 |
| 4745386 |
Solenoid device |
May. 17, 1988 |
| 4725802 |
Solenoid actuator with stationary armature extension |
Feb. 16, 1988 |
| 4686501 |
Electromagnetic actuator comprising at least two distinct magnetic circuits |
Aug. 11, 1987 |
| 4677409 |
Electromagnetic solenoid with a replaceable fixed iron core |
Jun. 30, 1987 |
| 4651118 |
Proportional solenoid |
Mar. 17, 1987 |
| 4602233 |
Apparatus for transmitting force from actuating element of an electromagnet to a component |
Jul. 22, 1986 |
| 4533888 |
Magnetic circuit control apparatus |
Aug. 6, 1985 |
| 4515343 |
Arrangement for electromagnetically operated actuators |
May. 7, 1985 |
| 4496921 |
Electromagnetic actuator having adjustable plunger |
Jan. 29, 1985 |
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