Patents Assigned to ITT Flygt AB
  • 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
  • Submersible machine
    Patent number: 5237228
    Abstract: A submersible machine has an electrically driven rotating mixer. The electric motor and hydraulic part are connected by a rotary shaft. The shaft end opposite from the hydraulic part is resiliently supported in a stator casing which surrounds the motor.
    Type: Grant
    Filed: November 13, 1991
    Date of Patent: August 17, 1993
    Assignee: ITT Flygt AB
    Inventor: Hjalmar Fries
  • Vane apparatus for clog resistant pump
    Patent number: 5221182
    Abstract: The vanes (6) of a pump housing (5) are designed with strongly back swept leading edges (7) as seen in the direction of the flow, the vanes (6) being given a bulb form in the outward direction.
    Type: Grant
    Filed: October 1, 1992
    Date of Patent: June 22, 1993
    Assignee: ITT Flygt AB
    Inventor: Ulf Arbeus
  • Seal device
    Patent number: 5181729
    Abstract: Two identical mechanical seals (6, 7) and (8, 9) respectively and an intermediate spring device (17) are arranged in a holder which is easily replaceable. The spring (17) is common for the two seals and is connected to sockets (13) and (14) respectively which anchor the rotating seal rings (6) and (8) respectively. The oil containment area (20) of the machine is connected to the area containing the spring (17).
    Type: Grant
    Filed: August 26, 1991
    Date of Patent: January 26, 1993
    Assignee: ITT Flygt AB
    Inventors: Alf Forssberg, Boris Fredriksson
  • Air intake supressor
    Patent number: 5174652
    Abstract: A mixer (1) is provided with a cover (6) on its upside for diminishing the risk for air intake when the mixer operates near a liquid surface (10).
    Type: Grant
    Filed: September 24, 1991
    Date of Patent: December 29, 1992
    Assignee: ITT Flygt AB
    Inventors: James Fischer, Tore Strandberg
  • Valve device for automatic circulation in a waste water pump station
    Patent number: 5161958
    Abstract: The pressure side of a submersible pump unit is provided with a valve device which during certain periods of operation opens a connection between the submersible pump and the pump station to obtain the necessary circulation of the waste water in the station. The opening and closing of the valve device is effected by a ball which is controlled by the submersible pump pressure.
    Type: Grant
    Filed: August 13, 1991
    Date of Patent: November 10, 1992
    Assignee: ITT Flygt AB
    Inventor: Folke Landquist
  • Mixer device
    Patent number: 5145254
    Abstract: At the bottom of the tank there are provided supports (4), (5), while the under side of the mixer is provided with corresponding surfaces (6), (7) for receiving the supports. In order to prevent the reaction force from the propeller (2) from tilting the front end of the mixer upwards, at least one of the supports (5) is arranged at a level above the level of the propeller shaft.
    Type: Grant
    Filed: September 24, 1991
    Date of Patent: September 8, 1992
    Assignee: ITT Flygt AB
    Inventor: Gunnar Hovstadius
  • Connecting arrangement between impeller shaft and mixer
    Patent number: 5141392
    Abstract: The driving shaft (3) of a pump impeller (4) is extended beyond the impeller and supports the mixer (5) at its end. In order to minimize the risk for extensive damage if the mixer should hit a solid body, the shaft (6) of the mixer is very slim and manufactured of an elastic material such as spring steel.
    Type: Grant
    Filed: February 21, 1991
    Date of Patent: August 25, 1992
    Assignee: ITT Flygt AB
    Inventor: Peter Uvemo
  • Device for cable transport
    Patent number: 4771699
    Abstract: A device for transport of a cable in vertical shafts, in which the cable is attached to a number of sliding means at regular intervals and arranged to slide or roll along a vertical guiding rail. The sliding means are also rigidly attached to a lifting wire at regular intervals.
    Type: Grant
    Filed: March 31, 1987
    Date of Patent: September 20, 1988
    Assignee: ITT Flygt AB
    Inventor: Guido Kaiserfeldt
  • Submersible mixer
    Patent number: D341608
    Type: Grant
    Filed: October 9, 1992
    Date of Patent: November 23, 1993
    Assignee: ITT Flygt AB
    Inventor: Hjalmar Fries