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
Radiation-emitting semiconductor chip and method for producing a radiation-emitting semiconductor chip
Bi-directional switch using series connected N-type MOS devices in parallel with series connected P-type MOS devices
Systems and methods for controlling phasing of advancing substrates in absorbent article converting lines
Image capture apparatus and program
Fluid handling structure, a lithographic apparatus and a device manufacturing method
Multiple CQI feedback for cellular networks
Image correction method
  Randomly Featured Patents
Method of treating hypercholesterolemia
Seat assembly
Preparation of extended shelf-life biodegradable, biocompatible microparticles containing a biologically active agent
Block clock and initialization circuit for a complex high density PLD
Data storage system and parity generation method for data storage system
Personal tracking device
Switch with sinuated air-passageway
Method and apparatus for data file transfer using destination linked directories
Alkyl ether derivatives or salts thereof
Stabilized, bleach containing, liquid detergent compositions