Patents by Inventor Lawrence E. Zdanowicz, Sr.

Lawrence E. Zdanowicz, Sr. 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).

  • Outboard motor with four-stroke engine and exhaust gas discharge system therefor
    Patent number: 5463990
    Abstract: Disclosed herein is an outboard motor comprising a cylinder block including a lower horizontal drive shaft housing mounting surface, and a cylinder head mounting surface extending upwardly from the drive shaft housing mounting surface, a drive shaft housing including a peripheral outer surface including an upper end, a cylinder block mounting surface at the upper end, and a portion extending rearwardly from the cylinder block mounting surface and having therein a vertically open bore located forwardly of the outer surface, and a cylinder head comprising a cylinder block mounting surface fixed to the cylinder head mounting surface and including vertically spaced first and second recesses adapted to respectively form portions of first and second combustion chambers and respectively including first and second exhaust ports, a bottom surface extending transversely rearwardly from the cylinder block mounting surface of the cylinder head, a projection extending downwardly from the bottom surface and into the bore,
    Type: Grant
    Filed: October 5, 1994
    Date of Patent: November 7, 1995
    Assignee: Outboard Marine Corporation
    Inventors: William B. Rush, II, Martin J. Mondek, Donald K. Sullivan, Mark A. Walter, Lawrence E. Zdanowicz, Sr.