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Modular microbarrier™ cap delivery system for attachment to the neck of a container

  • US 6,202,901 B1
  • Filed: 02/23/2000
  • Issued: 03/20/2001
  • Est. Priority Date: 02/01/1999
  • Status: Expired due to Fees
First Claim
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1. A modular MicroBarrier cap delivery system for integration in the neck of a container for contamination-free delivery of a flowable material residing in the container comprising:

  • a cap including a seat operatively connected with the reservoir for defining a flow path for the flowable material;

    said seat comprising one or more vanes, each vane having a major surface aligned for imparting unidirectional laminar flow in the flow path, and a blocking portion for preventing flow when an adjacent seal is conformably mated with the seat in a first or closed state;

    said seal responsive to an applied pressure comprising a sealing surface for conformably mating with the seat to prevent flow in said first state, said sealing surface defining a bore coaxially aligned with the blocking portion of the seat for enabling unidirectional flow through the bore when the seal and seat are in a second or open state;

    means for activating and deactivating the pressure to enable said seal to transition reversibly between the first and second states;

    means for attaching the modular cap to the neck of a container;

    a closure that movably attaches to the modular cap for sealing the bore of the said seal when not in use.

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