Patents by Inventor Jeffrey A. Berzack

Jeffrey A. Berzack 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).

  • Patent number: 6146730
    Abstract: A porous spacer incorporates a vaporizable corrosion inhibitor. The spacer is designed to be placed on a leader pin between the members of a mold or die set. The spacer is compressed between the members when the latter are stored. The spacer releases the inhibitor, which prevents corrosion during the storage period. The spacer serves to maintain a vapor flow space between the members.
    Type: Grant
    Filed: May 21, 1998
    Date of Patent: November 14, 2000
    Assignee: Polar Industries, Inc.
    Inventors: David L. Lewis, Jeffrey A. Berzack
  • Patent number: 5792407
    Abstract: A method and means for attaching flexible, low density or compressible structure such as foam to injection molded parts, wherein a mold has a recess shaped for a corresponding flexible, low density or compressible structure. A valve plate made of injected material is placed against the foam structure to compress and protect the foam structure from molten injected material. The valve plate has through apertures for limited access of the injected material to predetermined surface portions of the foam. The molten injected material forms an adhesive between the foam structure and valve plate to adhere the foam structure to the valve plate, and the resultant final component assembly.
    Type: Grant
    Filed: March 18, 1996
    Date of Patent: August 11, 1998
    Inventor: Jeffrey A. Berzack
  • Patent number: 5029774
    Abstract: A glider, comprising a tubular body open at each end and having a leading edge and a trailing edge, has a two-ring frame assembly disposed about the perimeter of the leading edge to provide body shape and rigidity. A two-ring frame assembly comprises a base ring and a clamping ring configured to matingly engage the base ring. The base ring is placed about the inner perimeter of the leading edge of the tubular body and the clamping ring is placeable about the outer perimeter of the leading edge of the tubular body to retain the tubular body between the base and the clamping ring when the rings are matingly engaged.
    Type: Grant
    Filed: December 21, 1989
    Date of Patent: July 9, 1991
    Inventor: Jeffrey A. Berzack