Patents by Inventor Ejgil KOUSTRUP

Ejgil KOUSTRUP 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
    Patent number: 11067086
    Abstract: A centrifugal pump (7), with one or more pumping stages, includes a pressure controlled valve (15) inside the pump (7) for supporting self-priming, the pressure controlled valve (15). The pressure controlled valve (15) includes a pretensioned leaf spring (17) and a valve seat (18). The leaf spring (17) has an opened position and a closed position. In the open position the leaf spring (17) is distanced from the valve seat (18). In the closed position the leaf spring (17) closes the valve seat (18). The leaf spring (17) and valve seat (18) are arranged for soft closing.
    Type: Grant
    Filed: May 4, 2017
    Date of Patent: July 20, 2021
    Assignee: GRUNDFOS HOLDING A/S
    Inventors: Janus Lukas Sierakowski-Larsen, Ejgil Koustrup
  • CENTRIFUGAL PUMP
    Publication number: 20170328366
    Abstract: A centrifugal pump (7), with one or more pumping stages, includes a pressure controlled valve (15) inside the pump (7) for supporting self-priming, the pressure controlled valve (15). The pressure controlled valve (15) includes a pretensioned leaf spring (17) and a valve seat (18). The leaf spring (17) has an opened position and a closed position. In the open position the leaf spring (17) is distanced from the valve seat (18). In the closed position the leaf spring (17) closes the valve seat (18). The leaf spring (17) and valve seat (18) are arranged for soft closing.
    Type: Application
    Filed: May 4, 2017
    Publication date: November 16, 2017
    Inventors: Janus Lukas SIERAKOWSKI-LARSEN, Ejgil KOUSTRUP