Patents by Inventor Todd G. Dosen

Todd G. Dosen 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).

  • Removable tube heat exchanger and header plate
    Patent number: 6964297
    Abstract: A heat exchanger design is described which includes header plates, apertures, seals and flow tubes. A plurality of apertures in at least one header plate are configured to allow a flow tube to be inserted into or removed from the aperture as a whole at an angle. A seal is included within the aperture and is supported by differing diameters of the aperture wall. The seal engages the flow tube in a manner to allow high pressure operation of the heat exchanger when the flow tube is perpendicular to the header plate.
    Type: Grant
    Filed: July 14, 1999
    Date of Patent: November 15, 2005
    Assignee: L & M Radiator, Inc.
    Inventors: Robert Janezich, James Comstock, Todd G. Dosen
  • Support for heat exchanger tubes
    Patent number: 6357513
    Abstract: A novel individual support for a heat exchanger is disclosed which frictionally engages the outer surface of a tube-and-fin assembly and provides for interlocking of the supports. The novel support includes an alignment probe to facilitate installation and to prevent axial movement of the support.
    Type: Grant
    Filed: January 28, 2000
    Date of Patent: March 19, 2002
    Assignee: L&M Radiator, Inc.
    Inventors: Robert Janezich, Todd G. Dosen
  • Radiator construction
    Patent number: 5433268
    Abstract: An improved radiator construction comprising a cooling tube having a barbed end, preferably with an adjacent collar, spaced apart sufficient to engage an elastomeric seal. The seal and tube are positioned in the opening of a radiator or heat exchanger header so that the tube barb and collar and the engaged seal cooperate to retain the cooling tube in the header.
    Type: Grant
    Filed: December 3, 1993
    Date of Patent: July 18, 1995
    Assignee: L & M Radiator, Inc.
    Inventors: Robert J. Janezich, Todd G. Dosen, Charles E. Cedar
  • Heat exchanger tube
    Patent number: 5236045
    Abstract: A heat exchanger tube having fin elements angled in an acute manner from a lateral axis of the flow tube to promote the deflection of debris. The heat exchanger may have a deflector element positioned between the fin elements to prevent the collection of debris between the fin elements.
    Type: Grant
    Filed: April 3, 1992
    Date of Patent: August 17, 1993
    Assignee: L & M Radiator, Inc.
    Inventors: Robert J. Janezich, Todd G. Dosen, Charles E. Cedar
  • Heat exchanger
    Patent number: 4930568
    Abstract: A heat exchanger is described wherein each heat transfer tube is individually removable along its longitudinal axis such that a dense tube configuration within the heat transfer chamber can be maintained.
    Type: Grant
    Filed: May 17, 1989
    Date of Patent: June 5, 1990
    Assignee: L and M Radiator, Inc.
    Inventors: Robert J. Janezich, Charles E. Cedar, Todd G. Dosen