Patents by Inventor Marvin E. Cavender

Marvin E. Cavender 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).

  • Method for detecting solidification in a mixed phase container
    Patent number: 4371977
    Abstract: A method for detecting solidification in a mixed phase low pressure fluidized bed olefin polymerization reactor having volume comprising:A. disposing a radiation source and a radiation detector such that radiation from said radiation source will pass through a radiation path through at least a portion of the volume of said container to reach said radiation detector,B. detecting solidification in said radiation path by noting a decrease in the amount of radiation reaching said radiation detector.
    Type: Grant
    Filed: June 17, 1980
    Date of Patent: February 1, 1983
    Assignee: Union Carbide Corporation
    Inventors: John M. Jenkins, III, Max E. Carter, Sr., Michael L. Green, Marvin E. Cavender