Patents by Inventor David M. Havice

David M. Havice 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).

  • Open engine cylinder compression testing device
    Patent number: 6298716
    Abstract: This invention is a device for testing the compression of singular cylinders in an open internal combustion engine or an engine having the head disengaged from the engine block. The device is installed above the cylinder with the piston at its lowest point in the cycle and the piston is then rotated to its highest point in the cycle, increasing the pressure within the cylinder. If the pressure diminishes or does not hold to a constant, an indication of poor compression of that cylinder relative to the piston and ring is indicated by such pressure fluctuation or loss.
    Type: Grant
    Filed: January 18, 2000
    Date of Patent: October 9, 2001
    Inventor: David M. Havice