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
Methods and system for displaying segmented images
System and method for detecting states
Systems and methods for programming an RFID reader
3D IC method and device
Method for facilitating assessment of a coursework answer and moderating the assessment
Vacuum cleaner
  Randomly Featured Patents
Joined concertina chairs
Apparatus for forming an image on a recording member
Retaining means
Oxidation intensifier for continuous warp-chain indigo dyeing machines
Communications system, method and device
Burner apparatus and methods for making inorganic fibers
Optical communication module, optical communications apparatus, and manufacturing method thereof
Method for producing high dimensional precision composite elements using ionization polymerization and elements produced by said method
Method and apparatus for controlling the temperature in the refrigerator chamber and freezer compartment of an absorption refrigerator
Foamed polyolefin resin sheet