Patents by Inventor Stephen B. Kras

Stephen B. Kras 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).

  • Closure cap with injection molded annular gasket and method of making same
    Patent number: 7367465
    Abstract: A closure cap and method of making the same wherein an annular or ring-shaped gasket is injection molded onto the inner surface of a cap shell formed of plastic or metal. The annular or ring-shaped gasket includes radially extending tabs integrally formed therewith, one of said tabs being formed at a location wherein the plastic melt is fed to an annular gasket-forming channel in a mold core and another of said tabs being formed at the location wherein plastic melt is discharged from said channel. Preferably, said other tab includes a cold well formation which communicates with the annular gasket through a connecting portion of reduced cross-sectional area with respect to the cross-sectional areas of both the gasket and the cold well formation.
    Type: Grant
    Filed: September 1, 2005
    Date of Patent: May 6, 2008
    Assignee: Silgan Holdings Inc.
    Inventors: James Taber, Stephen B. Kras
  • Closure cap with injection molded annular gasket and method of making same
    Patent number: 6964346
    Abstract: A closure cap and method of making the same wherein an annular or ring-shaped gasket is injection molded onto the inner surface of a cap shell formed of plastic or metal. The annular or ring-shaped gasket includes radially extending tabs integrally formed therewith, one of said tabs being formed at a location wherein the plastic melt is fed to an annular gasket-forming channel in a mold core and another of said tabs being formed at the location wherein plastic melt is discharged from said channel. Preferably, said other tab includes a cold well formation which communicates with the annular gasket through a connecting portion of reduced cross-sectional area with respect to the cross-sectional areas of both the gasket and the cold well formation.
    Type: Grant
    Filed: August 9, 2000
    Date of Patent: November 15, 2005
    Assignee: White Cap, Inc.
    Inventors: James Taber, Stephen B. Kras