Resources Contact Us Home
Pressure control device

Image Number 10 for United States Patent #8061384.

In a pressure controller, a drive piston and pressure control valve are freely movably supported in a housing, the drive piston is supported by being energized and the pressure control valve is supported by being energized to make a pressure chamber and a decompression chamber communicatively connectible, the drive piston and the pressure control valve are moved by an electromagnetic force of a solenoid via a ring piston to make a hyperbaric chamber and the pressure chamber communicatively connectible and also an external piston is freely movably provided facing the drive piston and by making a control pressure acting on the external piston from a rear pressure chamber on a drive piston side equal to or greater than an external pressure acting from outside from an input unit, pressure control can properly be performed by readily moving a drive valve by pressure from outside when a power supply is defective.

  Recently Added Patents
Replacing memory pointers with implicit pointers to be used in compiler-generated debug output
Process for producing dipeptides or dipeptide derivatives
Resource compatability for data centers
Single well reservoir characterization apparatus and methods
Process for making diethyl ether from acetic acid
Case for electronic device
Correlating trace data streams
  Randomly Featured Patents
Valve array
Surface acoustic wave sensor
Method for sending messages from a lower-level controller to a higher-level controller
Terahertz imaging system for examining articles
Satellite based data transfer and delivery system
Distribution line switchgear control with isolated cascaded power supplies
Magnetic disk with embossed pattern
Semiconductor memory with insulation film embedded in groove formed on substrate
Dielectric ceramic composition and ceramic capacitor
Endoscope cleaning and disinfecting apparatus