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Class Information
Number: 137/487.5
Name: Fluid handling > Line condition change responsive valves > Pilot or servo controlled > Electrically actuated valve
Description: Devices in which the valve is electrically actuated.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 8689829 |
Fluid flow monitor |
Apr. 8, 2014 |
| 8689822 |
Pressure regulation in remote zones |
Apr. 8, 2014 |
| 8684021 |
Versatile emergency shutdown device controller implementing a pneumatic test for a system instrument device |
Apr. 1, 2014 |
| 8684028 |
Fuel quality traceable and remote system |
Apr. 1, 2014 |
| 8671973 |
Mass flow controller hysteresis compensation system and method |
Mar. 18, 2014 |
| 8671985 |
Control valve assembly |
Mar. 18, 2014 |
| 8662856 |
Pump control system |
Mar. 4, 2014 |
| 8656938 |
Compressed gas tank system with fast fueling ability at any vessel pressure |
Feb. 25, 2014 |
| 8651135 |
Mass flow controller, mass flow controller system, substrate processing device, and gas flow rate adjusting method |
Feb. 18, 2014 |
| 8655494 |
Fluid process control |
Feb. 18, 2014 |
| 8646748 |
Pressure regulator |
Feb. 11, 2014 |
| 8644996 |
Positioner |
Feb. 4, 2014 |
| 8641009 |
Positioner |
Feb. 4, 2014 |
| 8640724 |
Valve control system and valve control method |
Feb. 4, 2014 |
| 8616231 |
Valve device for a compressed air supply device and compressed air supply system |
Dec. 31, 2013 |
| 8615329 |
Control system for regulating liquid flow |
Dec. 24, 2013 |
| 8596293 |
Water appliance having a flow control unit and a filter assembly |
Dec. 3, 2013 |
| 8590561 |
Pressure sensor, differential pressure type flow meter, and flow rate controller |
Nov. 26, 2013 |
| 8584698 |
Programmable device for compressor valve |
Nov. 19, 2013 |
| 8578958 |
Leak mitigation for pressurized bi-directional systems |
Nov. 12, 2013 |
| 8579252 |
Actuator device having an open/close valve |
Nov. 12, 2013 |
| 8573247 |
Flow-rate controller, and regulator unit and valve unit used for the same |
Nov. 5, 2013 |
| 8573241 |
Systems and processes for field-initiated fluid regulation testing |
Nov. 5, 2013 |
| 8567062 |
Method for assembling an electromagnetic gas valve, and electromagnetic gas valve |
Oct. 29, 2013 |
| 8561627 |
Calibration of a chemical dispense system |
Oct. 22, 2013 |
| 8561636 |
System and method for leakage control and/or testing of piping and discharge points for non-compressible fluids |
Oct. 22, 2013 |
| 8555914 |
Method for autonomous control of a chemical injection systems for oil and gas wells |
Oct. 15, 2013 |
| 8550112 |
Multifunctional safety valve device with incorporated proportional pressure regulator |
Oct. 8, 2013 |
| 8549136 |
System for operating at least one non-safety-critical and at least one safety-critical process |
Oct. 1, 2013 |
| 8534182 |
Valvetrain oil control system and oil control valve |
Sep. 17, 2013 |
| 8528589 |
Manipulation of microfluidic droplets |
Sep. 10, 2013 |
| 8528590 |
Combination solenoid check valve |
Sep. 10, 2013 |
| 8522815 |
Gas shutoff device |
Sep. 3, 2013 |
| 8511337 |
Flow rate controller and proportional electromagnetic valve |
Aug. 20, 2013 |
| 8505872 |
Valve control apparatus and valve apparatus |
Aug. 13, 2013 |
| 8499786 |
Mass flow controller with enhanced operating range |
Aug. 6, 2013 |
| 8490645 |
Pressure sensor, pressure-differential flow rate meter, and flow rate controller |
Jul. 23, 2013 |
| 8490646 |
Diaphragm valve with mechanical pressure relief |
Jul. 23, 2013 |
| 8485219 |
Flow rate control using mass flow rate control device |
Jul. 16, 2013 |
| 8485211 |
Subsea valve |
Jul. 16, 2013 |
| 8479758 |
Methods and devices for reducing water consumption |
Jul. 9, 2013 |
| 8464751 |
Oxygen content adjustment apparatus and container data center including the same |
Jun. 18, 2013 |
| 8464741 |
Flow control method for multizone gas distribution |
Jun. 18, 2013 |
| 8464750 |
Magnetostrictive pressure regulating system |
Jun. 18, 2013 |
| 8459285 |
Slug mitigation |
Jun. 11, 2013 |
| 8453886 |
Device and method for discharging constant amount of high-viscosity material |
Jun. 4, 2013 |
| 8453688 |
Kit and device for connecting and transferring fluid and the use of said device |
Jun. 4, 2013 |
| 8453671 |
Apparatus for controlling internal pressure of hermetically sealed chamber |
Jun. 4, 2013 |
| 8453668 |
Vacuum relief valve |
Jun. 4, 2013 |
| 8439062 |
Flood preventing system, and method of use |
May. 14, 2013 |
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