Electromagnetic valve

Details Electromagnetic valve Electromagnetic valve

2011-05-10

2011-05-10

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

Valves and valve actuation

Electrically actuated valve

With means to bias valve open

C251S122000

Reexamination Certificate

active

07938381

ABSTRACT:
An electromagnetic valve has a fixed core, a movable core, a coil attract the fixed core and the movable core each other, a valve body and a valve seat member including a funnel-shaped valve seat surface and an inlet path. The flow path is closable by retreat/advance of the valve body relative to the valve seat surface. The valve body includes a semi-spherical seal portion and a stem portion extending from the seal portion towards the movable core, a diameter of an end portion of the seal portion at the stem portion side is larger than a diameter of an end portion of the stem portion at the seal portion side. A space is defined in an area located on an extended line extending from a small diameter end portion to a large diameter end portion of the valve seat surface.

REFERENCES:
patent: 5199769 (1993-04-01), Beck et al.
patent: 5522426 (1996-06-01), Zutt et al.
patent: 5556175 (1996-09-01), Hayakawa et al.
patent: 5725289 (1998-03-01), Mueller et al.
patent: 5785297 (1998-07-01), Ha
patent: 6254199 (2001-07-01), Megerle et al.
patent: 6523913 (2003-02-01), Lauer et al.
patent: 7168679 (2007-01-01), Shirase et al.
patent: 7467780 (2008-12-01), Kratzer
patent: 2005/0001190 (2005-01-01), Shirase et al.
patent: 0 670 445 (1993-10-01), None
patent: 1 484 539 (2004-12-01), None
patent: 933758 (1962-03-01), None
patent: 1 221 185 (1967-12-01), None
patent: 2 204 381 (1987-04-01), None
patent: 6193764 (1994-07-01), None
patent: 8501375 (1996-02-01), None
patent: 10500923 (1998-01-01), None
patent: 2000512585 (2000-09-01), None
patent: 2002525524 (2002-08-01), None
patent: 2004-360750 (2004-12-01), None
patent: 2002-347597 (2007-12-01), None
Office Action of Jul. 31, 2008 issue in the corresponding Chinese Application No. 2008100049915.
European Search Report for corresponding European Application No. 08001804.7.
Office Action for corresponding Japanese Application No. 2007-022565 dated Oct. 4, 2010 (English translation attached) Mailing date Oct. 12, 2010.

Affiliated with

Also associated with

Rating

Electromagnetic valve does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electromagnetic valve, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electromagnetic valve will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2676466