Patents by Inventor Bernardus B. Quist

Bernardus B. Quist 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).

  • Centrifugal pump for pulverized material
    Patent number: 4963065
    Abstract: A centrifugal pump for feeding pulverized material such as coal particles from a low pressure zone into a high pressure zone, said pump having nozzles mounted on a rotor. The pulverized material is ejected into the high pressure space through the nozzles, and gas is supplied to the nozzles to control the flow rate of the pulverized material. Devices are provided that ensure mass flow of the material through the nozzles, even if the nozzles have a short length.
    Type: Grant
    Filed: March 14, 1986
    Date of Patent: October 16, 1990
    Assignee: Shell Oil Company
    Inventors: Andrew M. Scott, Bernardus B. Quist, Teunis Terlouw
  • Centrifugal pump for pulverized material
    Patent number: 4605352
    Abstract: A centrifugal pump for feeding pulverized material such as coal particles from a low pressure zone into a high pressure zone, the pump having nozzles mounted on a rotor. The pulverized material is ejected into the high pressure space through the nozzles, and gas is supplied to the nozzles to control the flow rate of the pulverized material. Apparatus is provided that ensures mass flow of the material through the nozzles, even if the nozzles have a short length.
    Type: Grant
    Filed: June 18, 1985
    Date of Patent: August 12, 1986
    Assignee: Shell Oil Company
    Inventors: Andrew M. Scott, Bernardus B. Quist, Teunis Terlouw
  • Centrifugal pump for transferring solid particles from a low pressure zone into a high pressure zone
    Patent number: 4497605
    Abstract: A centrifugal pump for transferring solid particles from a low pressure zone into a high pressure zone comprises a centrifugal rotor and a housing that are each rotatable about a central axis. The rotor debouches particles into the interior of the housing and a screw conveyor is arranged in the housing for transporting particles along the inner surface of the housing to an outlet which is coaxial to the central axis.
    Type: Grant
    Filed: February 4, 1983
    Date of Patent: February 5, 1985
    Assignee: Shell Oil Company
    Inventors: Franciscus H. J. Bukkems, Bernardus B. Quist