Patents by Inventor Bengt A. Brandt

Bengt A. Brandt 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 impeller, and in combination with a centrifugal pump housing
    Patent number: 5281088
    Abstract: Atop the impeller are ancillary vanes, the same provided for pumping cooling liquid to the centrifugal pump motor cooling system. The liquid is conveyed through a narrow slot, vertically, which obtains between an annulus of the pump housing and an impeller extension. Grooves, contiguous with inner tips of the ancillary vanes, and formed in the extension, widen the slot, cyclically, coincident with rotation of the impeller, and hasten deaeration of air bubbles which exist, at start-up, between the impeller and the pump housing.
    Type: Grant
    Filed: August 10, 1992
    Date of Patent: January 25, 1994
    Assignee: ITT Flygt AB
    Inventor: Bengt A. Brandt
  • Motor and cooling means therefor
    Patent number: 5250863
    Abstract: The stator housing of an electric motor has its central, rotary axis offset from, and parallel with, the longitudinal axis of its enclosing casing. The housing and casing define a cooling liquid chamber therebetween which, due to the offset axes, define the chamber of different widths. A wall, of arcuate configuration is joined to the casing to render the chamber of uniform width thereabout and therealong, and to form a separate, lateral compartment for conduits for conducting cooling liquid into the chamber.
    Type: Grant
    Filed: August 10, 1992
    Date of Patent: October 5, 1993
    Assignee: ITT Flygt AB
    Inventor: Bengt A. Brandt
  • Rotary joint
    Patent number: 4749335
    Abstract: A rotary joint having a non rotary housing surrounding a rotating shaft and being sealed by a mechanical seal. Monitoring impulses are transmitted by hydraulic fluid which is transported between the housing and the shaft by means of a distribution socket. The socket is arranged so that a number of column seals are formed between the shaft and the socket. The apparatus is supported by two prestressed, reversed roller bearings.
    Type: Grant
    Filed: October 16, 1987
    Date of Patent: June 7, 1988
    Assignee: Flygt AB
    Inventors: Bengt A. Brandt, Bertil Englesson