Patents by Inventor James Alan McKnight

James Alan McKnight 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).

  • Detection of bubbles in a liquid
    Patent number: 4112735
    Abstract: The invention provides a method and apparatus for detecting a bubble in a containing medium such as a liquid, and comprises sending an ultrasonic signal at the bubble at or above the resonant frequency of the bubble, exciting a doppler signal scattered by the bubble in response to the signal, and receiving the doppler signal so as to detect the bubble. The doppler signal may be excited by movement of the bubble, or of that part of the apparatus which receives the doppler signal.
    Type: Grant
    Filed: August 30, 1977
    Date of Patent: September 12, 1978
    Assignee: United Kingdom Atomic Energy Authority
    Inventor: James Alan McKnight