Patents by Inventor Patrick F. Hearty

Patrick F. Hearty 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).

  • Icing detector
    Patent number: 3940622
    Abstract: An icing detector for moving or stationary installations which comprises a probe subject to atmospheric icing, and ice formation sensing means disposed in a duct through which flow of ambient air is induced by ejector defining elements. The induced air flow provides high sensitivity regardless of the relative ambient velocity. An ice/de-ice cycle is repeated providing continuing icing detection. Specific embodiments of the invention provide a measure of icing severity or ambient liquid water content.
    Type: Grant
    Filed: February 24, 1975
    Date of Patent: February 24, 1976
    Assignee: Canadian Patents & Development Limited
    Inventors: James R. Stallabrass, T. Rayman Ringer, Donald L. Bailey, Patrick F. Hearty