Patents by Inventor Wilfred J. Zetner

Wilfred J. Zetner 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).

  • Transfer bar coupling
    Patent number: 4068957
    Abstract: A coupling between adjacent ends of transfer bar sections which includes a screw having threads of opposite hand at opposite ends thereof engaged with threaded counterbores in the ends of the two transfer bar sections. A spacer ground precisely to a desired length is clamped between the ends of the bar sections when the screw is tightened. The spacer and screw have radially aligned holes therein to accommodate a tool for tightening the screw. The holes are dimensioned relative to the tool so that the screw can be tightened a final increment without rotating the spacer.
    Type: Grant
    Filed: August 23, 1976
    Date of Patent: January 17, 1978
    Assignee: F. Jos. Lamb Company
    Inventors: John H. Brems, John Kobane, Jr., Wilfred J. Zetner