Patents by Inventor Randall E. Hedeen

Randall E. Hedeen 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).

  • Integrated heat exchanger
    Patent number: 5316079
    Abstract: An integrated heat exchanger includes a first heat exchange core adapted for cooling a first heat exchange fluid and a second heat exchange core adapted for cooling a second heat exchange fluid. A first pair of fluid manifolds supports the first and second heat exchange cores and communicates with the first heat exchange core to allow the first heat exchange fluid to pass between the first pair of fluid manifolds and the first heat exchange core. A second pair of fluid manifolds supports the first and second heat exchange cores and communicates with the second heat exchange core to allow the second heat exchange fluid to pass between the second pair of fluid manifolds and the second heat exchange core. The first and second pairs of fluid manifolds form a quadrilateral support structure with each fluid manifold forming a side of the support structure.
    Type: Grant
    Filed: February 12, 1993
    Date of Patent: May 31, 1994
    Assignee: Paccar Inc
    Inventor: Randall E. Hedeen