Patents by Inventor Howard E. Elliff

Howard E. Elliff 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).

  • Air swirling device for use in the annular space of air filters on internal combustion engines
    Patent number: 4729776
    Abstract: A substantially circular strip air swirling device is provided for positioning in the annular space of air filters on internal combustion engines. Such device has a plurality of upper outwardly extending vanes and a plurality of upper inwardly extruding vanes with a transverse support member. Such device creates a swirling stream of air as the air enters the air horn of the carburetor to provide improved carburetion which results in improved gasoline mileage.
    Type: Grant
    Filed: February 9, 1987
    Date of Patent: March 8, 1988
    Inventor: Howard E. Elliff