Patents by Inventor Ralph W. Collins

Ralph W. Collins has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Flask vent and method of making same
    Patent number: 6193088
    Abstract: A closure (20) for sealing a micro-organism container (50) is disclosed. The closure (20) includes a resilient seal (24) for sealing the container (50), a passageway (26) extending through the seal (24), or filter media (28) extending across the passageway (26) integrally molded to the seal (24) for allowing sterile gas exchange therethrough. A method of making a flask closure (20) is also disclosed. The method includes molding a sealing member (24) having a port (26) extending therethrough while simultaneously sealing a peripheral edge (31) of a filter media (28) within the passageway (26).
    Type: Grant
    Filed: July 13, 1999
    Date of Patent: February 27, 2001
    Inventors: Monty E. Vincent, John R. Costello, Jr., Jonathan N. Lipsky, Ralph W. Collins, Robert A. Giacobbe