Patents by Inventor Herbert E. Tune

Herbert E. Tune 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 blending installation
    Patent number: 4413604
    Abstract: A blending installation is described in which the grade of fuel is adjusted to enable an engine to use the most economical grade of fuel at any time. A circuit is connected to two reservoirs containing different grades of fuel. The fuel is constantly circulated by a pump in the circuit and fed to the engine. A pump meters the appropriate quantity of the higher grade fuel into the circuit and the balance of lower grade fuel is supplied by gravity feed into the circuit.
    Type: Grant
    Filed: September 30, 1981
    Date of Patent: November 8, 1983
    Assignee: Star Engineering Applications Limited
    Inventor: Herbert E. Tune