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Membrane penetrating closure with deformable top surface

  • US 20040026422A1
  • Filed: 07/02/2003
  • Published: 02/12/2004
  • Est. Priority Date: 07/09/2002
  • Status: Abandoned Application
First Claim
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1. A membrane penetrating closure for a container having an opening sealed by a membrane, comprising:

  • a cap structure having a first end adapted to be engaged on the container, a second end of said cap structure being sealed by a user deformable portion that includes a pressure application surface;

    a penetrating structure connected to an interior surface of the user deformable portion such that it extends towards the membrane when the container and membrane penetrating closure are engaged, the penetrating structure having a cutting edge adapted to sever at least a portion of the membrane; and

    retaining structure positioned within the penetrating structure, the retaining structure being adapted to retain the severed portion of the membrane within the penetrating structure.

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