Patents by Inventor John J. DeRuiter

John J. DeRuiter 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).

  • Machine and method for manufacturing crossover fittings
    Patent number: 5396786
    Abstract: A machine for forming a metallic tubular section in which the tubular section is located, retained, has at least one end formed, filled with fluid that is then pressurized within the tube section, and bend formed into a predetermined shape, all at a single station of the machine. A second station, either coupled with or independent from the first station functions to locate a tube section, retain it, cut off a portion of the tube section, form at least one end of the tube section, and provide for removal of the tube section therefrom. The tube sections are preferably crossover fittings. The present invention further comprises a method of manufacturing a full crossover fitting and a method of manufacturing a half crossover fitting.
    Type: Grant
    Filed: March 15, 1993
    Date of Patent: March 14, 1995
    Assignee: Mueller Industries, Inc.
    Inventors: Richard A. Bartholomew, John J. DeRuiter