Patents by Inventor Donald E. Kropp

Donald E. Kropp 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).

  • Seal cartridge for agitator shaft of a chemical reactor
    Patent number: 4202553
    Abstract: A seal cartridge for the upper end-adjacent portion of a rotatable agitator shaft which projects upwardly through the drive nozzle of a chemical reactor vessel includes an outer housing which is adapted to be fixedly anchored relative to the drive nozzle, said housing containing sealing means which are removably secured to and carried by the agitator shaft whereby to rotate with the shaft interiorly of the housing and wherein the sealing means are removable from said housing for purposes of inspection and/or replacement after the housing has been removed from the shaft.
    Type: Grant
    Filed: November 3, 1978
    Date of Patent: May 13, 1980
    Assignee: Ceramic Coating Company
    Inventor: Donald E. Kropp
  • 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