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CLOSURE FOR CONTAINER FOR HOLDING BIOLOGICAL SAMPLES

  • US 20090273121A1
  • Filed: 07/09/2009
  • Published: 11/05/2009
  • Est. Priority Date: 08/10/2005
  • Status: Active Grant
First Claim
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1. A method for preparing a closure, said method comprising the steps of:

  • (a) providing an apparatus having a mold zone, the mold zone comprising a molding unit, said molding unit comprising (1) at least one cavity half and at least one core half, the at least one cavity half comprising a mold cavity, and the at least one core half comprising a mold core, (2) a punch, and (3) a die;

    (b) providing a web comprising a material for preparing the interior seal of the closure;

    (c) indexing a portion of the web to the mold zone, so that the punch and the die are aligned with the portion of the web in the molding unit;

    (d) closing the molding unit, thereby enabling the punch and the die to cut the material of the web for forming the interior seal of the closure;

    (e) allowing the cut material of the web to be maintained on the mold core until the termination of a first molding cycle;

    (f) introducing polymeric material into the closed molding unit, so as to allow the cut material of the web to adhere to the polymeric material introduced into the closed molding unit;

    (g) opening the molding unit while allowing the assembly of the cap and the interior seal of the closure to remain on the mold core;

    (h) positioning the mold core to enable introduction of polymeric material into the molding unit so as to form the exterior seal of the closure in a second molding cycle;

    (i) closing the molding unit;

    (j) introducing polymeric material into the closed molding unit; and

    (k) opening the molding unit and removing the closure from the mold core.

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