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Class Information
Number: 335/281
Name: Electricity: magnetically operated switches, magnets, and electromagnets > Magnets and electromagnets > With magneto-mechanical motive device (e.g., electromagnet with armature) > Core or pole shape, structure or material
Description: Subject matter including significant magnetic core or pole shape, structure or material.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7605680 |
Electromagnetic actuator |
Oct. 20, 2009 |
| 7592890 |
Magnetic-path member, electromagnetic coupling device using magnetic-path member, and method of manufacturing magnetic-path member |
Sep. 22, 2009 |
| 7581302 |
Solenoid valve combining a core and cartridge in a single piece |
Sep. 1, 2009 |
| 7564332 |
Variable force solenoid |
Jul. 21, 2009 |
| 7557684 |
Electromagnetic switch with fixed magnetic core having disc portion formed of stack of base and balance metal sheets |
Jul. 7, 2009 |
| 7535328 |
Electromagnetic switch |
May. 19, 2009 |
| 7520488 |
Poppet-type two-port solenoid valve |
Apr. 21, 2009 |
| 7504920 |
Magnetic brake assembly |
Mar. 17, 2009 |
| 7481242 |
Solenoid-operated directional control valve |
Jan. 27, 2009 |
| 7468647 |
Linear solenoid having stator core and plunger |
Dec. 23, 2008 |
| 7441746 |
Solenoid device and injection valve having the same |
Oct. 28, 2008 |
| 7423506 |
Annular magnet |
Sep. 9, 2008 |
| 7405640 |
Enhanced solenoid-armature interface |
Jul. 29, 2008 |
| 7375606 |
Electromagnetic contractor for controlling an electric starter |
May. 20, 2008 |
| 7350763 |
Linear solenoid with adjustable magnetic force |
Apr. 1, 2008 |
| 7315230 |
Adjustable solenoid |
Jan. 1, 2008 |
| 7280021 |
Linear solenoid designed to ensure required amount of magnetic attraction and solenoid valve using same |
Oct. 9, 2007 |
| 7266883 |
Methods for the production of a pressure pipe of an electric hoisting magnet and pressure pipe of a hoisting magnet |
Sep. 11, 2007 |
| 7249749 |
Solenoid valve with 2-part fixed core |
Jul. 31, 2007 |
| 7243680 |
Electromagnetic hydraulic valve, in particular a 3/2-way directional control valve, for controlling a variable drive train of an internal combustion engine |
Jul. 17, 2007 |
| 7227440 |
Electromagnetic actuator |
Jun. 5, 2007 |
| 7209020 |
Variable force solenoid |
Apr. 24, 2007 |
| 7095304 |
Solenoid air valve |
Aug. 22, 2006 |
| 7091808 |
Solenoid |
Aug. 15, 2006 |
| 7059453 |
Electromagnetic brake |
Jun. 13, 2006 |
| 7049917 |
Solenoid air valve |
May. 23, 2006 |
| 7044438 |
Electromagnetic actuator with non-symmetrical magnetic circuit layout for actuating a gas-reversing valve |
May. 16, 2006 |
| 7028978 |
Proportional solenoid-controlled fluid valve having compact pressure-balancing armature-poppet assembly |
Apr. 18, 2006 |
| 6980072 |
Linear actuator, and pump and compressor devices using the actuator |
Dec. 27, 2005 |
| 6959732 |
Hard coating on a stator for improving the durability of a solenoid actuator |
Nov. 1, 2005 |
| 6956454 |
Magnetic subassembly of an electrical breaker apparatus |
Oct. 18, 2005 |
| 6929242 |
High force solenoid and solenoid-driven actuator |
Aug. 16, 2005 |
| 6922124 |
Electromagnetic drive device |
Jul. 26, 2005 |
| 6856222 |
Biarmature solenoid |
Feb. 15, 2005 |
| 6853276 |
Electromagnetic formed contact surface |
Feb. 8, 2005 |
| 6800983 |
Magnetic circuit structure, and power-generating device and electronic device using the same |
Oct. 5, 2004 |
| 6778051 |
Electromagnetic valve |
Aug. 17, 2004 |
| 6768406 |
Electromagnetic device for valve control |
Jul. 27, 2004 |
| 6763789 |
Electromagnetic actuator with permanent magnet |
Jul. 20, 2004 |
| 6759934 |
Proportionally-controllable solenoid actuator |
Jul. 6, 2004 |
| 6739843 |
Control valve and variable displacement compressor having the same |
May. 25, 2004 |
| 6737946 |
Solenoid for efficient pull-in and quick landing |
May. 18, 2004 |
| 6731191 |
DC electromagnet |
May. 4, 2004 |
| 6731043 |
One-piece field core shell |
May. 4, 2004 |
| 6674353 |
Magnet system for a relay |
Jan. 6, 2004 |
| 6642825 |
Iron core and electromagnetic driving mechanism employing the same |
Nov. 4, 2003 |
| 6628186 |
Solenoid valve |
Sep. 30, 2003 |
| 6611186 |
Solenoid having an elastomeric retaining device and method of manufacturing same without potting |
Aug. 26, 2003 |
| 6604726 |
Proportional solenoid-controlled fluid valve assembly without non-magnetic alignment support element |
Aug. 12, 2003 |
| 6601822 |
Electromagnetic driving device, fluid control valve having same and method of manufacturing same |
Aug. 5, 2003 |
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