Patents by Inventor Dale H. Boyd

Dale H. Boyd 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).

  • Leak detector
    Patent number: 5156042
    Abstract: Apparatus for detecting leaks in fuel storage tanks. A float suspended in the tank liquid determines liquid levels and transmits the liquid level information via an infrared beam to a probe processor in the upper portion of the tank. The probe processor stores a plurality of level indications for subsequent uploading to an external computer which analyzes the level information to generate leakage rate information.
    Type: Grant
    Filed: June 28, 1989
    Date of Patent: October 20, 1992
    Assignee: ProEco, Inc.
    Inventors: John A. Carlin, William L. Mobeck, Dale H. Boyd