Patents by Inventor William Repenning

William Repenning 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).

  • Method for producing a drum type container with air cushion
    Patent number: 4010230
    Abstract: A method for producing a container of large capacity formed of an outer shell of structurally strong material and an inner plastic container joined at its upper end portion about the rim of the shell and resting at its bottom end on the bottom wall of the shell with an air cushion between the outer side walls of the plastic container and the inner walls of the shell. A sheet of the plastic is vacuum formed within the outer shell and then allowed to shrink in order to form the air cushion.
    Type: Grant
    Filed: November 29, 1974
    Date of Patent: March 1, 1977
    Assignee: Natico, Inc.
    Inventor: William Repenning
  • Apparatus for lining drums with plastic material
    Patent number: 3975134
    Abstract: Means for vacuum forming a plastic film to form a continuous liner about the interior of a drum, using the drum shell as a mold member.
    Type: Grant
    Filed: October 11, 1974
    Date of Patent: August 17, 1976
    Assignee: Natico, Inc.
    Inventor: William Repenning