Valves and valve actuation – Electrically actuated valve – With means to bias valve open
Reexamination Certificate
2002-02-21
2004-06-01
Mancene, Gene (Department: 3754)
Valves and valve actuation
Electrically actuated valve
With means to bias valve open
C251S129180
Reexamination Certificate
active
06742764
ABSTRACT:
TECHNICAL FIELD
The present invention generally relates to valves and more particularly relates to an electromagnetic valve.
BACKGROUND OF THE INVENTION
DE 196 03 381 A1 discloses an electromagnetic valve of the indicated type which, for the purpose of attachment of the valve housing in the valve accommodating member, includes a magnet end plate having a clinched contour, on which a valve coil with a yoke ring is seated. The magnet end plate additionally receives the open end of a dome-shaped sleeve member. The valve seat is attached to a cylinder insert which extends into the sleeve member up to a magnet armature.
Consequently, the valve housing is comprised of the cylinder insert which extends into the sleeve member and the valve seat fastened thereto. The cylinder insert is made from a solid turned part due to the press-in force which acts upon the valve housing. The total manufacturing effort for the valve is relatively high.
An object of the present invention is to manufacture an electromagnetic valve of the indicated type with least possible effort and structure, and another objective is to limit the mechanical stress on the valve and to limit the necessary adjustment measures to a minimum.
REFERENCES:
patent: 5601275 (1997-02-01), Hironaka
patent: 5810330 (1998-09-01), Eith et al.
patent: 6318703 (2001-11-01), Goossens et al.
patent: 6325467 (2001-12-01), Seitz et al.
patent: 40 30 571 (1992-04-01), None
patent: 196 46 835 (1998-05-01), None
patent: 197 27 654 (1999-01-01), None
patent: 197 39 886 (1999-03-01), None
patent: 198 36 494 (1999-10-01), None
patent: WO 99/31578 (1998-07-01), None
Search Report of the German Patent Office for Appln 10004692.4.
Buechner Patrick
Continental Teves AG & Co. OHG
Mancene Gene
Rader & Fishman & Grauer, PLLC
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