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Apparatus and method for containing and regulating the pressure in a pressure vessel

  • US 20050095139A1
  • Filed: 10/30/2003
  • Published: 05/05/2005
  • Est. Priority Date: 10/30/2003
  • Status: Abandoned Application
First Claim
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1. A water storage apparatus for selectively storing and releasing water delivered from a well via a water pump, the apparatus comprising:

  • a pressure vessel having an opening and an interior volume;

    an elastic member inside the pressure vessel and separating the interior volume into a water storing volume and an air storing volume, the water storing volume communicating with the water pump and is filled with water supplied by the pump, the air storing volume containing a fixed amount of air, the volume of the air storing volume decreasing and the pressure increasing in response to water being pumped into the water storing volume, the volume air storing volume increasing and the pressure decreasing in response to a decrease in the amount of water in the water storing volume;

    a conduit in the pressure vessel opening and defining an air passage in communication with the air storing volume;

    an air pressure switch in communication with the air passage and adapted to activate the pump in response to the air pressure in the air storing volume dropping below a first limit and deactivating the pump in response to air pressure rising above a second limit; and

    a piercing member contiguous with the conduit and extending into the air storing volume to pierce the elastic member in the event that the elastic member contacts the piercing member due to the air storing volume shrinking below a normal operating range of volumes.

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