Patents Examined by Stewart I. Levy
  • Method and apparatus for sensing the condition of lubricating oil in an internal combustion engine
    Patent number: 4733556
    Abstract: An on-board sensor system which compares the dielectric properties of lubricating oil in an internal combustion engine with the dielectric properties of unused oil in a contained volume and providing an output signal indicative of the changes in viscosity correlated to the dielectric constant changes of the lubricating oil.
    Type: Grant
    Filed: December 22, 1986
    Date of Patent: March 29, 1988
    Assignee: Ford Motor Company
    Inventors: Allen H. Meitzler, George S. Saloka