Patents by Inventor Leonard Ohrin

Leonard Ohrin 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).

  • Vacuum compression brazing furnace and method of using same
    Patent number: 6910614
    Abstract: A vacuum heat treating furnace for brazing a large metallic part is disclosed. The vacuum furnace includes a pressure vessel having a cylindrical wall and a door dimensioned and positioned for closing an end of the cylindrical wall. A workpiece handling system is mounted on the pressure vessel door for supporting a metallic workpiece to be heat treated or brazed. The workpiece handling system includes apparatus for rotating the workpiece during a processing cycle. A vacuum system is connectable to the workpiece for creating a subatmospheric pressure inside the workpiece during a brazing cycle.
    Type: Grant
    Filed: February 5, 2003
    Date of Patent: June 28, 2005
    Assignee: IPSEN International, Inc.
    Inventors: Wayne Mitten, Leonard Ohrin, William McVeigh
  • Vacuum compression brazing furnace and method of using same
    Publication number: 20030160088
    Abstract: A vacuum heat treating furnace for brazing a large metallic part is disclosed. The vacuum furnace includes a pressure vessel having a cylindrical wall and a door dimensioned and positioned for closing an end of the cylindrical wall. A workpiece handling system is mounted on the pressure vessel door for supporting a metallic workpiece to be heat treated or brazed. The workpiece handling system includes apparatus for rotating the workpiece during a processing cycle. A vacuum system is connectable to the workpiece for creating a subatmospheric pressure inside the workpiece during a brazing cycle.
    Type: Application
    Filed: February 5, 2003
    Publication date: August 28, 2003
    Inventors: Wayne Mitten, Leonard Ohrin, William McVeigh