Patents by Inventor Lawrence H. McGrievy

Lawrence H. McGrievy 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).

  • Apparatus and method for controlling the rate of feeding a petroleum product to a coking drum system
    Patent number: 4176052
    Abstract: A coking drum system is provided in combination with a process control unit wherein the rate of material delivered to a coking drum during a coking process timing cycle is monitored and the quantity of material received by the coking drum is continuously derived therefrom. Based on this derived quantity of delivered material, the quantity of feed material required to fill the drum to a preestablished level with coke, at the completion of the timing cycle, can be predicted. The flow rate of feed material to the coking drum is accordingly adjusted so that the amount of coke produced in the drum during one timing cycle is optimized.
    Type: Grant
    Filed: October 13, 1978
    Date of Patent: November 27, 1979
    Assignee: Marathon Oil Company
    Inventors: Charles R. Bruce, Irvin D. Johnson, Lawrence H. McGrievy