Patents by Inventor Glenn E. Caldwell

Glenn E. Caldwell 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).

  • Low profile drive for agitator shaft of chemical reactor vessel
    Patent number: 4198373
    Abstract: A low profile drive assembly for the agitator shaft of a reactor vessel is mounted for lateral movement relative to the agitator shaft whereby to provide access to and removal of the shaft-seal assembly via the space vacated by the drive.
    Type: Grant
    Filed: November 3, 1978
    Date of Patent: April 15, 1980
    Assignee: The Ceramic Coating Company
    Inventors: Donald E. Kropp, Glenn E. Caldwell