Patents by Inventor Oluf Kjaer

Oluf Kjaer 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).

  • Actuating device for a pump unit
    Patent number: 10294996
    Abstract: An actuation device for a pump assembly such as for application in a can of a pump assembly for force impingement of a shaft situated in the can. The device includes a carrier for connection to the can and a passage extending along a longitudinal axis. An actuation pin is led in the passage along a longitudinal axis and has a first axial end including a tool receiver and a an opposite second axial end including an engagement region for force transmission onto a shaft. A spring element is arranged between the actuation pin and the carrier and impinges the actuation pin with a spring force in a first axial end direction. A seal is arranged between the carrier and the actuation pin, in a region between the spring element and the second axial end. A pump assembly with such an actuation device is also provided.
    Type: Grant
    Filed: May 6, 2014
    Date of Patent: May 21, 2019
    Assignee: GRUNDFOS HOLDING A/S
    Inventors: Tonny Ring Nielsen, Oluf Kjær, Troels Holtum Rasmussen
  • Rotor for a canned motor
    Patent number: 9429164
    Abstract: A rotor (2) provided for a canned motor of a wet-running centrifugal pump forms the shaft for the drive of the impeller (7) and includes at least one permanent magnet (12) which is encapsulated in a fluid-tight manner. The peripheral part of the encapsulation in the region of the at least one permanent magnet (12) forms the rotor shaft.
    Type: Grant
    Filed: December 3, 2008
    Date of Patent: August 30, 2016
    Assignee: Grundfos Management a/s
    Inventors: Oluf Kjaer, Finn Mathiesen Hoj, Helge Grann, Kare Iversen
  • ACTUATING DEVICE FOR A PUMP UNIT
    Publication number: 20160102715
    Abstract: An actuation device for a pump assembly such as for application in a can of a pump assembly for force impingement of a shaft situated in the can. The device includes a carrier for connection to the can and a passage extending along a longitudinal axis. An actuation pin is led in the passage along a longitudinal axis and has a first axial end including a tool receiver and a an opposite second axial end including an engagement region for force transmission onto a shaft. A spring element is arranged between the actuation pin and the carrier and impinges the actuation pin with a spring force in a first axial end direction. A seal is arranged between the carrier and the actuation pin, in a region between the spring element and the second axial end. A pump assembly with such an actuation device is also provided.
    Type: Application
    Filed: May 6, 2014
    Publication date: April 14, 2016
    Inventors: Tonny Ring NIELSEN, Oluf KJÆR, Troels Holtum RASMUSSEN
  • Rotor made of magnetic material
    Patent number: 8729768
    Abstract: The invention relates to a rotor including a magnetic material. At least one surface section of the magnetic material is provided with a wear-resistant coating.
    Type: Grant
    Filed: January 8, 2010
    Date of Patent: May 20, 2014
    Assignee: Grundfos Management a/s
    Inventors: Helge Grann, Uffe Staehr, Oluf Kjaer
  • ROTOR MADE OF MAGNETIC MATERIAL
    Publication number: 20110260575
    Abstract: The invention relates to a rotor including a magnetic material. At least one surface section of the magnetic material is provided with a wear-resistant coating.
    Type: Application
    Filed: January 8, 2010
    Publication date: October 27, 2011
    Applicant: GRUNDFOS MANAGEMENT A/S
    Inventors: Helge Grann, Uffe Staehr, Oluf Kjaer
  • ROTOR FOR A CANNED MOTOR
    Publication number: 20100272591
    Abstract: A rotor (2) provided for a canned motor of a wet-running centrifugal pump forms the shaft for the drive of the impeller (7) and includes at least one permanent magnet (12) which is encapsulated in a fluid-tight manner. The peripheral part of the encapsulation in the region of the at least one permanent magnet (12) forms the rotor shaft.
    Type: Application
    Filed: December 3, 2008
    Publication date: October 28, 2010
    Applicant: GRUNDFOS MANAGEMENT A/S
    Inventors: Oluf Kjaer, Finn Mathiesen Hoj, Helge Grann, Kare Iversen