Valves and valve actuation – Fluid actuated or retarded – Pilot or servo type motor
Reexamination Certificate
2005-08-23
2005-08-23
Look, Edward K. (Department: 3751)
Valves and valve actuation
Fluid actuated or retarded
Pilot or servo type motor
C251S129050
Reexamination Certificate
active
06932317
ABSTRACT:
The present invention comprises a diaphragm type solenoid fluid valve assembly of the class used in the on/off control of pressurized fluid flow. The valve assembly has a housing, a solenoid, and a magnetized cylindrical armature engagingly coupled to the solenoid and residing within the hollow center of the solenoid. The armature further has a spring affixed to one end of the armature and affixed to the end of the solenoid, wherein the spring and armature are capable of linear motion within the fluid chamber of the valve housing and within the cylindrical plunger guide of the solenoid. The linear motion is controlled by the magnetic field of the solenoid and the spring so as to enable the magnetized armature to abut against the orifice fluid exit of the orifice plate to prevent fluid flow there-through. The valve assembly further comprises a solenoid driver adapted to generate a pulse width modulated signal having two voltage levels other than zero volts, so as to control valve operation, wherein the first voltage level is to initiate movement of the magnetized armature, and the second voltage level is to hold the magnetized armature in the energized position.
REFERENCES:
patent: 3738607 (1973-06-01), Peruglia
patent: 4922217 (1990-05-01), Buscher
patent: 4981280 (1991-01-01), Brandenberg
patent: 5058624 (1991-10-01), Kolze
patent: 5904334 (1999-05-01), Grunert et al.
patent: 6019441 (2000-02-01), Lloyd et al.
patent: 6534958 (2003-03-01), Graber et al.
Broniak Jay Andrew
Gnadinger Errin Whitney
Kappler Jerrod Aaron
Armstrong Teasdale LLP
Fristoe Jr. John K.
General Electric Company
Look Edward K.
Rideout, Jr. George L.
LandOfFree
Low power DC solenoid 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 Low power DC solenoid valve, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Low power DC solenoid valve will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3493148