Patents by Inventor Charles F. Old

Charles F. Old 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).

  • Flow monitoring
    Patent number: 4791810
    Abstract: An apparatus and a method are provided for detecting and monitoring flow of a fluid through an injector, such as a fuel injector (10) of a diesel engine. Ultrasonic waves are detected by a transducer (12), and signals passed through a filter (20), so as to observe broadband signals of frequency above 100 kHz. Such signals are due to turbulent flow through the injector orifice (38), and so enable the flow itself to be detected.
    Type: Grant
    Filed: April 17, 1987
    Date of Patent: December 20, 1988
    Assignee: United Kingdom Atomic Energy Authority
    Inventors: Charles F. Old, Christopher B. Scruby