Patents by Inventor Gerald C. Mayer

Gerald C. Mayer 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).

  • Conveyor overspeed-underspeed and/or slip detector
    Patent number: 3989989
    Abstract: A control system is provided for stopping the operation of a bulk material conveyor system in response to an indication that the speed of either drive or driven elements thereof are above or below acceptable amounts, that the output speed of a particular material handling component falls below an acceptable difference from the input speed to said component, or that the speed of an upstream material handling component falls outside an acceptable difference with respect to the speed of a downstream material handling component feeding material to said upstream component. Speed indication is provided by the electrical signal output from dc tachometer-generators associated with the drive or driven shafts of the component whose speed is being sensed.
    Type: Grant
    Filed: April 30, 1975
    Date of Patent: November 2, 1976
    Assignee: Litton Systems, Inc.
    Inventor: Gerald C. Mayer