Patents by Inventor Jerry R. Hummel

Jerry R. Hummel 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).

  • Electrode drive and nozzle system for automatic air-carbon arc cutting and gouging torch
    Patent number: 4260867
    Abstract: An automatic air-carbon arc cutting and gouging torch having a drive for the elongated electrode consisting of opposed wheels biased toward the electrode for frictional contact to drive the electrode by driving one of the wheels. Each wheel can be adjusted about a pivot point to compensate for curvature of the electrode, changes in diameter, or mis-aligned joints in successive electrodes. The torch includes an improved nozzle to conduct both current and process air to the electrode thus lowering the operating temperature of the torch.
    Type: Grant
    Filed: March 30, 1979
    Date of Patent: April 7, 1981
    Assignee: Arcair Company
    Inventors: William J. Coughlin, Stephen A. Hoffman, Jerry R. Hummel
  • Air-carbon arc cutting and gouging torch
    Patent number: 4218605
    Abstract: A fixed head air-carbon arc cutting and gouging torch for use in a metal foundry for cleaning riser pads, sprues, fins and other excess or unwanted surface material or defects from castings. The torch is characterized by improved air flow means to reduce the required inlet air pressure, improved air valve means, better head angle and handle design for increased process efficiency.
    Type: Grant
    Filed: March 30, 1979
    Date of Patent: August 19, 1980
    Assignee: Arcair Company
    Inventors: Stephen A. Hoffman, Jerry R. Hummel
  • Underwater cutting and gouging torch
    Patent number: 4131780
    Abstract: An underwater cutting and welding torch wherein the torch head carries both the welding electrode and means for directing a high pressure fluid toward an arc struck between the electrode and a workpiece. The high pressure fluid preferably is the water in which the torch is being operated.
    Type: Grant
    Filed: November 11, 1977
    Date of Patent: December 26, 1978
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Harold J. Trabbold, Jerry R. Hummel