Patents by Inventor Iver Jorgensen

Iver Jorgensen 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).

  • Method and regulator for controlling the delivery of a pump arrangement according to demand
    Patent number: 4259038
    Abstract: The invention relates to a pumping system for supplying fluid at a variable delivery rate in accordance with demand. The system includes one pump having a variable delivery rate and one or more auxiliary pumps arranged in parallel therewith, each having a fixed delivery rate. The variable delivery pump operates over a predetermined control range between minimum and maximum rates. Each fixed delivery rate pump has on and off operating modes with the on mode delivery rate being at the maximum delivery rate of the variable delivery pump. A control unit for operating the pumps matches the pump delivery with the demand. The control unit functions to set the variable delivery pump at its minimum delivery rate when operation of the fixed delivery pump is initiated during upward demand control and for setting it at its maximum delivery rate when operation of the fixed delivery pump is terminated during downward demand control.
    Type: Grant
    Filed: December 15, 1978
    Date of Patent: March 31, 1981
    Assignee: Danfoss A/S
    Inventors: Iver Jorgensen, Steen Veigert, Niels E. Andersen