Patents by Inventor George E. Ligler

George E. Ligler 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).

  • Supplemental oil system for engines
    Patent number: 4012012
    Abstract: An oil replenishment system provides a remote reserve oil tank and the plumbing necessary to fill the main oil tank or tanks of engines, especially aircraft engines during flight. This system includes apparatus to determine the quantity of oil pumped to any one engine so that a quantity gauge is not required on the engine. A selector valve located on the reserve tank which may be remotely controlled directs replenishment oil to the selected engine tank. The system is designed to be powered from the existing on board hydraulic power system.
    Type: Grant
    Filed: October 30, 1975
    Date of Patent: March 15, 1977
    Assignee: Lockheed Aircraft Corporation
    Inventor: George E. Ligler