Resources Contact Us Home
Safety valve

Image Number 3 for United States Patent #5732729.

A valve includes two outlet ports and two inlets communicating with a chamber and includes two valve seats. A membrane is secured in the chamber. Two plugs are slidably engaged in the inlets for engaging with the valve seats and each includes one end engaged with the membrane and the other end slidably engaged with a cap. Two springs are engaged between the plugs and the caps for balancing the membrane and the plugs. One of the plugs is forced to engage with the valve seat by water from the inlet when no water is supplied to the other inlet.

  Recently Added Patents
Drug delivery system
Communication apparatus, integrated circuit, and communication method
Method of modified facies proportions upon history matching of a geological model
Distortion compensation device, distortion compensation method, and radio transmitter
Optical sensor and electronic apparatus
Social network user data advertising
Process for preparing synthetic intermediates of peripherally-selective inhibitors of dopamine-.beta.-hydroxylase involving catalytic asymmetric hydrogenation
  Randomly Featured Patents
Graphical interface for receiving eyeglass prescription information
Browsing electronically-accessible resources
Wide range clock recovery circuit
Hot-water extraction unit
Zinc phosphate low temperature glasses
Lifting sling
Low viscosity, crosslinkable liquid polysilanes
Method for the purification of waste water containing silver
Storage carts
Coating composition