Patents by Inventor James D. Patrick

James D. Patrick 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).

  • Patent number: 5198980
    Abstract: A self-powered and self-contained portable testing apparatus for monitoring critical operating parameters of an aircraft reciprocating engine. The portable testing apparatus is typically used for the running-in of aircraft engines after overhaul, before returning the engines to service. The portable testing apparatus includes a plurality of sensors for sensing and generating analog signals corresponding to temperature at various locations inside and outside the engine. A multiposition selector switch electrically connects to each of the sensors. The switch is designed to select one of the analog temperature signals and to transmit the selected signal to a computer having a display. The computer converts the selected signal into a digital temperature signal and indicates the digital signal in corresponding numerical representation on its display. Also included is a tachometer for measuring and displaying the operating speed of the engine.
    Type: Grant
    Filed: November 5, 1990
    Date of Patent: March 30, 1993
    Inventor: James D. Patrick