Patents by Inventor Donald R. Kellermann

Donald R. Kellermann 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).

  • Engine cooling system
    Patent number: 5937802
    Abstract: A cooling system for an internal combustion engine is provided with coolant paths through the cylinder block and cylinder head which are connected in serial fluid communication with each other. In parallel with the cooling path through the cylinder head, a first drain is connected in serial fluid communication with a pressure responsive valve and the path through the cylinder block. A temperature responsive valve 64 is connected in serial fluid communication with the cylinder head path and in parallel fluid communication with the first drain. A pump is provided to induce fluid flow through the first and second coolant conduits and the first and second drains, depending on the space of the pressure responsive valve and the temperature responsive valve.
    Type: Grant
    Filed: October 8, 1997
    Date of Patent: August 17, 1999
    Assignee: Brunswick Corporation
    Inventors: Steven J. Bethel, Mark A. Ruman, Donald R. Kellermann, Robert J. Baumhardt