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Vacuum released valve

  • US 20060175354A1
  • Filed: 01/20/2006
  • Published: 08/10/2006
  • Est. Priority Date: 04/26/2002
  • Status: Active Grant
First Claim
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1. A mechanism comprising a fluid containing reservoir having an inlet or outlet opening, and a valve for providing communication through an inlet or outlet opening, the valve disposed across the opening movable between a first closed position preventing flow through the valve and an open position permitting flow through the valve, the valve movable under externally applied forces to the first closed position and is retained in the first closed position until the pressure in the reservoir is a first vacuum level sufficiently below pressure when the valve moves from the first closed position to the open position.

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