Patents by Inventor William F. Ziehm

William F. Ziehm 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).

  • Oil metering device for supplying oil to a fuel tank
    Patent number: 4721072
    Abstract: A fuel tank includes a first container adapted to contain a fuel mixture, and a second container adapted to contain oil. A metering arrangement is provided for selectively delivering a measured quantity of said oil from the second container to the first container when fuel is added to the first container, the volume of the oil delivered to the first container being proportional to the volume of fuel added to the first container. A valve assembly is also provided for alternatively providing fluid communication between a metering chamber and the first container and the metering chamber and the second container and for permitting oil flow to the first container only when the fuel tank cap is removed.
    Type: Grant
    Filed: July 3, 1985
    Date of Patent: January 26, 1988
    Assignee: Outboard Marine Corporation
    Inventors: Theodore J. Holterman, William F. Ziehm
  • Oil metering device for supplying oil to a fuel tank
    Patent number: 4719881
    Abstract: A fuel tank includes a first container adapted to contain a fuel mixture, and a second container adapted to contain oil. A metering arrangement is provided for selectively delivering a measured quantity of said oil from the second container to the first container when fuel is added to the first container. The volume of the oil delivered to the first container being proportional to the volume of fuel added to the first container. A valve assembly is also provided for alternatively providing fluid communication between a metering chamber and the first container and the metering chamber and the second container and for permitting oil flow to the first container only when the fuel tank cap is removed.
    Type: Grant
    Filed: December 31, 1984
    Date of Patent: January 19, 1988
    Assignee: Outboard Marine Corporation
    Inventors: Theodore J. Holtermann, William F. Ziehm