Patents by Inventor Raymond B. Furst

Raymond B. Furst 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).

  • Rotary pump inlet velocity profile control device
    Patent number: 4900222
    Abstract: A rotary pump with an inlet flow duct having a convergent section upstream the tips of the rotor blades. The convergent section decreases the cross-sectional flow area of the inlet flow duct prior to the flow being introduced into the rotor, thereby creating a substantially uniform velocity profile in the flow just upstream the rotor blades.
    Type: Grant
    Filed: December 23, 1988
    Date of Patent: February 13, 1990
    Assignee: Rockwell International Corporation
    Inventors: Sen Y. Meng, Raymond B. Furst
  • Thrust control vanes for waterjets
    Patent number: 4427338
    Abstract: The straightening vanes of a waterjet pump are designed to produce a low-pressure area, and the downstream side of the rotor drum is located inside said low-pressure area to eliminate the need for an axial thrust control seal.
    Type: Grant
    Filed: June 4, 1982
    Date of Patent: January 24, 1984
    Assignee: Rockwell International Corporation
    Inventor: Raymond B. Furst
  • Inducer tip clearance and tip contour
    Patent number: 4339227
    Abstract: A pump having inducer blades configured to have a tip thickness less than about twice the clearance between the tip and the adjacent housing to prevent cavitation damage to the inducer blades.
    Type: Grant
    Filed: May 9, 1980
    Date of Patent: July 13, 1982
    Assignee: Rockwell International Corporation
    Inventor: Raymond B. Furst
  • Method of altering an axial impeller/stator vane combination
    Patent number: 4166310
    Abstract: Axial impellers for waterjet pumps, for example, require for each horsepower level a different stator vane housing in order to avoid stator vane cavitation damage. The invention allows the use of one stator housing for a wide horsepower range at constant speed by holding the ratio of impeller discharge flow coefficient over head coefficient constant.
    Type: Grant
    Filed: May 2, 1978
    Date of Patent: September 4, 1979
    Assignee: Rockwell International Corporation
    Inventors: Kurt Rothe, Raymond B. Furst, Charles E. Nielson
  • High suction inducer
    Patent number: 3951565
    Abstract: An inducer having a generally conical hub and a plurality of blades projecting substantially perpendicular to the axis of said hub; each of said blades being formed of alar configuration with the tip suction surface leading edges of said blades defining angles of .+-. 0.5.degree. with the relative flow direction of the incident fluid, and having the ratio of the spacing between adjacent blades to the clearance distance between said blade tips and an encircling housing greater than about 70.
    Type: Grant
    Filed: December 9, 1974
    Date of Patent: April 20, 1976
    Assignee: Rockwell International Corporation
    Inventors: Kurt Rothe, Raymond B. Furst