Valves and valve actuation – Electrically actuated valve – Including solenoid
Reexamination Certificate
2011-08-09
2011-08-09
Fristoe, Jr., John (Department: 3753)
Valves and valve actuation
Electrically actuated valve
Including solenoid
C335S279000
Reexamination Certificate
active
07992839
ABSTRACT:
A solenoid operated valve has a valve body with a plurality of ports and a spool slideable within the valve body to interconnect the ports in different combinations. An actuator includes a solenoid coil assembly and an armature slideably received in the solenoid coil assembly. A bushing has a cylindrical body from which a push member projects into engagement with the spool and from which a coupling shaft extends into an aperture in the armature. A passage is provided in the bushing to allow fluid to flow between opposites sides as the bushing slides in the solenoid coil assembly. The cylindrical body rides in the solenoid coil assembly and has a plurality of external grooves that enable fluid to pass around the body.
REFERENCES:
patent: 3788597 (1974-01-01), Ichioka
patent: 4127835 (1978-11-01), Knutson
patent: 4267897 (1981-05-01), Takeshima
patent: 4525695 (1985-06-01), Sheng et al.
patent: 5004440 (1991-04-01), Suzuki
patent: 5249603 (1993-10-01), Byers, Jr.
patent: 5252939 (1993-10-01), Riefler et al.
patent: 5368070 (1994-11-01), Bosley
patent: 6029704 (2000-02-01), Kuroda et al.
patent: 6313726 (2001-11-01), Golovatai-Schmidt et al.
patent: 6435472 (2002-08-01), Najmolhoda et al.
patent: 6612544 (2003-09-01), Sakata et al.
patent: 6640834 (2003-11-01), Hamkins et al.
patent: 6659121 (2003-12-01), Takahashi et al.
patent: 7007925 (2006-03-01), Nordstrom et al.
patent: 7243899 (2007-07-01), Acar et al.
patent: 7513482 (2009-04-01), Shibata et al.
Flynn Edward Aloysius
Nordstrom Robert Scott
Stephens Kirt Nathaniel
Fristoe, Jr. John
Haas George E.
HUSCO Automotive Holdings LLC
Quarles & Brady LLP
LandOfFree
Electrohydraulic valve having a solenoid actuator plunger... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Electrohydraulic valve having a solenoid actuator plunger..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electrohydraulic valve having a solenoid actuator plunger... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2729058