Patents by Inventor Robert L. Strohl

Robert L. Strohl 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).

  • Exothermic cutting electrode
    Patent number: 4864093
    Abstract: An exothermic cutting electrode or burning bar having an oxidizable metal fluid conduit (tube) surrounded by alternate layers of wire wound helically in opposite directions, the entire structure covered with an outer oxidizable metallic tube, either end of the electrode being adapted for connection to a source of oxidizing fluid and electric current, so that an arc can be struck between a work-piece and the free end of the electrode to produce a cutting flame. By proper selection of the type and size of materials of construction the electrode will burn after the electric current has been turned off.
    Type: Grant
    Filed: October 5, 1988
    Date of Patent: September 5, 1989
    Assignee: Arcair Company
    Inventors: Harold R. Henderson, Robert L. Strohl
  • Self-contained exothermic cutting system
    Patent number: 4573665
    Abstract: A self-contained portable exothermic cutting system including an electrode holder, current source, arc initiator and source of oxygen.
    Type: Grant
    Filed: December 3, 1984
    Date of Patent: March 4, 1986
    Assignee: Arcair Company
    Inventors: Robert L. Strohl, Paul E. Moore, Alexander Toth
  • Coated exothermic cutting electrode
    Patent number: 4544139
    Abstract: An exothermic cutting electrode or burning bar provided with a coating containing oxidizing material, arc stabilizing material and a binder with portions of reduced coating thickness along the length of the electrode.
    Type: Grant
    Filed: October 18, 1984
    Date of Patent: October 1, 1985
    Assignee: Arcair Company
    Inventors: Paul E. Moore, Robert L. Strohl, Lawrence R. Soisson