Resources Contact Us Home
Valve and a gas burner

Image Number 7 for United States Patent #7059581.

A valve for supplying fuel gas to a fuel gas appliance comprises a valve housing which defines a valve chamber within which a main carrier member is axially moveable. The main carrier carries a primary and a secondary valving member for co-operating respectively with a primary and a secondary valve seat. A pilot fluid outlet supplies fuel gas to a pilot jet. A stepper motor comprising a rotor and four magnetic coils urges the main carrier between a fully open and closed position. An electro-magnetic coil located in the main carrier magnetically couples primary and secondary end plates to the main carrier. Magnetic decoupling of the primary and secondary end plates from the main carrier permits the main carrier to be urged into the closed position by primary compression springs. The drive transmission comprises a drive shaft from the rotor of the stepper motor and a drive spindle.

  Recently Added Patents
Mobile terminal apparatus, radio base station apparatus and radio communication method
Dual functional medium shredding machine structure
High porosity ceramic honeycomb article containing rare earth oxide and method of manufacturing same
Automated processing machine used for processing samples placed on slides and having an output device
Method and system of a sensor interface having dynamic automatic gain control
Image processing apparatus and image processing method
Determining system for localization methods combination
  Randomly Featured Patents
Receiving apparatus and method, transmitting apparatus and method, and transmission medium
Full-protection circuit breaker
Object identification system
Semiconductor device having a dual-damascene gate and manufacturing method thereof
Water saving device for toilets
Fuel leak sensor system
Frequency converter, orthogonal demodulator and orthogonal modulator
Braid separation system
Method, apparatus and system for operating an expansion card according to a signaling voltage
Gas mixing apparatus for metastable transfer emission spectroscopy