Patents Assigned to Frank & Ockrent Limited
  • Apparatus for monitoring engines
    Patent number: 4475382
    Abstract: Oil mist detecting apparatus comprises a measuring chamber which receives air, and oil mist if present, from an engine compartment. The apparatus includes a radiation source which emits light into the measuring chamber, and the radiation sensor which is so disposed as to receive light scattered by oil mist in the chamber. A second radiation source is preferably provided for testing purposes, the second source being arranged to emit radiation directly to the sensor.
    Type: Grant
    Filed: July 21, 1982
    Date of Patent: October 9, 1984
    Assignee: Frank & Ockrent Limited
    Inventor: Peter Frank