Patents by Inventor Louis E. Cano

Louis E. Cano 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: 5621159
    Abstract: A fan test system and method for determining fan bearing friction and available life, including a power controller for changing the fan's power level for at least a predetermined time period and a measuring device for measuring the change in rotation of the fan. A memory is preferably coupled to the power controller for storing a plurality of rotation values for providing a history of fan bearing performance. A current sensor or current limiter is preferably coupled in series with the fan, where the measuring device detects voltage pulses or poles of the fan. The power controller preferably includes a timer for determining the time period and a counter for counting rotation events. The power controller also preferably includes a control circuit for controlling a switch coupled between a power source and the fan.
    Type: Grant
    Filed: November 2, 1995
    Date of Patent: April 15, 1997
    Assignee: Dell USA L.P.
    Inventors: Alan E. Brown, Louis E. Cano