Patents by Inventor Frederick J. Debettignies

Frederick J. Debettignies 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).

  • Exhaust manifold expansion slot for internal combustion motor
    Patent number: 5174252
    Abstract: A multiple cylinder internal combustion cylinder block having a cast exhaust manifold means integrally cast with the block is disclosed. The manifold means includes manifold port portions that communicate with the cylinder bores, and an expansion slot is provided in the manifold port portions adjacent the cylindrical bores to relieve stress that tends to distort the cylindrical bores of the block.
    Type: Grant
    Filed: February 3, 1992
    Date of Patent: December 29, 1992
    Assignee: Outboard Marine Corporation
    Inventors: Gregory J. Binversie, Frederick J. Debettignies, Charles F. Erbach