Patents by Inventor John E. Lovelock

John E. Lovelock 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).

  • Fuel quantity measuring apparatus
    Patent number: 4348894
    Abstract: Measuring apparatus for measuring the quantity of calibration fluid delivered by engine-fuel injection apparatus, in which calibration fluid is passed into a hollow cylinder on one side of a piston to displace the latter in one direction along the cylinder and pressurized gas is passed into the cylinder on the other side of the piston to displace it in the other direction and so drain calibration fluid from the cylinder.
    Type: Grant
    Filed: June 24, 1980
    Date of Patent: September 14, 1982
    Assignee: Leslie Hartridge Limited
    Inventors: Reginald S. Emerson, John E. Lovelock