Patents by Inventor Edward Schlueter

Edward Schlueter 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).

  • Punch and ejector assembly
    Patent number: 4691602
    Abstract: A piercing punch and ejection assembly has a piercing punch member provided with a bore in its point thickness section. The ejector member, included in the assembly, comprises a conical helical spring of rectangular cross section that is installed into the blind hole bore of the punch member.
    Type: Grant
    Filed: September 14, 1981
    Date of Patent: September 8, 1987
    Inventor: Edward Schlueter