Patents by Inventor Robert C. Klunder

Robert C. Klunder 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 of manufacturing a container body having a tear strip, the body per se, and a metal blank from which the body is to be manufactured
    Patent number: 4693658
    Abstract: The disclosure relates to a method of manufacturing a body formed of a shaped sheet metal blank having an opening tear strip terminating in a tongue. Overlapping edges of the blank are welded together and at the tear strip melting of a tin coating of the blank occurs so that at the tear strip the edges of the blank are linked by melted tin, or welding is completely interrupted to form a slot at the tear strip between the overlapping edges of the blank and the slot using a sealing material. Further, the disclosure relates to a metal blank for a can body having a tear strip formed there across by two weakening scores extending transversely to the edges of the blank and terminating in a tongue. The tear strip at one of the edges of the blank is provided with a covering and/or oxide layer which has a relatively low electrical conductivity.
    Type: Grant
    Filed: June 18, 1985
    Date of Patent: September 15, 1987
    Assignee: Thomassen & Drijver-Verblifa NV
    Inventors: Johannes A. Glerum, Robert C. Klunder