Solenoid valve

Details Solenoid valve Solenoid valve

2006-12-13

2009-11-10

Fristoe, Jr., John K (Department: 3753)

Valves and valve actuation

Electrically actuated valve

Including solenoid

C335S297000

Reexamination Certificate

active

07614603

ABSTRACT:
A solenoid valve includes: a moving core; a coil for generating magnetic force that attracts the moving core; a stator that forms a magnetic circuit in cooperation with the moving core and attracts the moving core; and a cup-shaped member disposed at the inner periphery of the stator and on the outer periphery of the moving core. The cup-shaped member reciprocatably supports the moving core, and restricts hydraulic fluid leakage from the moving core side to the outer periphery side. A collar made of a soft magnetic material, disposed so as to face a face on the stator side in the axial direction of the moving core, and forming a magnetic circuit in cooperation with the moving core and the stator.

REFERENCES:
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patent: 6705589 (2004-03-01), Hofmann et al.
patent: 7150447 (2006-12-01), Kondo
patent: 2004/0135658 (2004-07-01), Ermert et al.
patent: 2005/0062005 (2005-03-01), Shimura et al.
patent: 2006/0071560 (2006-04-01), Ermert et al.
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patent: 2004-301294 (2004-10-01), None
Korean Notice of Invitation to Submit Opinion dated May 26, 2008 issued in corresponding Korean Appln. No. 10 2007 0001316 with English translation.
Office Action dated Jan. 4, 2008 in DE application No. 10 2007 001 187.5 with English translation.
Chinese Office Action dated Oct. 24, 2008 issued in corresponding Chinese Application No. 200710001807.7 with English Translation.
Korean Office Action dated Jan. 21, 2009 issued in corresponding Korean Application No. 10-2007-0001316, with English translation.
Korean Office Action dated Aug. 10, 2009, issued in counterpart Korean Application No. 10-2007-0001316, with English translation.

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