Resources Contact Us Home
Double acting pressure relief valve with low pressure seal

Image Number 5 for United States Patent #6305412.

A pressure relief valve that includes a sealing arrangement with a cantilevered seal that prevents fluid from escaping from a system if the differential pressure is only slightly positive yet permits fluid to be released from the system if the internal system pressure exceeds a predetermined pressure differential. In a further embodiment, the pressure relief valve includes a further scaling arrangement with a further cantilevered seal, which is normally closed, but if the internal system pressure should decrease below the external pressure a predetermined amount the second scaling arrangement opens to allow fluid into the system to thereby equalize the pressure and thereby prevent collapse of the system.

  Recently Added Patents
Methods for increasing efficacy of FOLR1 cancer therapy
Measuring device and measuring method that use pulsed electromagnetic wave
Image forming apparatus
Image forming apparatus with enhanced display of guidance information
System and method for logical separation of a server by using client virtualization
Particles with high surface charge for crystalline colloidal arrays
  Randomly Featured Patents
Clean melt nucleated cast article
Discharge light-emitting device and method manufacture thereof
Method and device for balancing production-related inaccuracies of the magnetic wheel of an electromotive drive of a vehicle
Optical disc playback device
Mannich base composition
Calcium independent cytosolic phospholipase A.sub.2 /B enzymes
Leaf cutting attachment for rotary lawn mower
Offset joint for downhole tools
Ridge ventilation system