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Closure device and method for venting, cannulating and pressurizing a vessel

  • US 5,806,573 A
  • Filed: 08/13/1996
  • Issued: 09/15/1998
  • Est. Priority Date: 08/13/1996
  • Status: Expired due to Fees
First Claim
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1. A method for automatically venting fluids from an interior of a vessel through an opening in the vessel comprising:

  • coupling a cap to the vessel around the opening;

    sealing the opening of the vessel with a valve plug, the valve plug defining first and second passages coupled with the vessel interior;

    at least partially uncoupling the vessel from the cap; and

    during the uncoupling step, moving the valve plug and cap relative to one another such that the first passage is fluidly coupled to a vent port to allow venting of fluids from the interior of the vessel through the passage and the vent port;

    wherein the relative movement of the cap and the valve plug affects the first passage but does not affect the second passage.

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