Patents by Inventor ILKKA DAHLSTROM

ILKKA DAHLSTROM 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 measuring arrangement for measuring gas content of fluid
    Patent number: 6427521
    Abstract: The invention relates to a method and a measuring arrangement for measuring the gas content of a fluid (13). The fluid (13) comprises gas bubbles. In the method, microwave radiation (20) is transmitted through the fluid (13) and a signal (7) indicating the travel time, phase or amplitude of the radiation (20) is formed in a microwave measuring device (16), and a gas measuring equipment (18) determines the gas content of the fluid (13) by means of the signal (7).
    Type: Grant
    Filed: July 1, 1999
    Date of Patent: August 6, 2002
    Assignee: Metso Field Systems Oy.
    Inventors: Pekka Jakkula, Ilkka Dahlström, Timo Manninen
  • METHOD AND MEASURING ARRANGEMENT FOR MEASURING GAS CONTENT OF FLUID
    Publication number: 20020014105
    Abstract: The invention relates to a method and a measuring arrangement for measuring the gas content of a fluid (13). The fluid (13) comprises gas bubbles. In the method, microwave radiation (20) is transmitted through the fluid (13) and a signal (7) indicating the travel time, phase or amplitude of the radiation (20) is formed in a microwave measuring device (16), and a gas measuring equipment (18) determines the gas content of the fluid (13) by means of the signal (7).
    Type: Application
    Filed: July 1, 1999
    Publication date: February 7, 2002
    Inventors: PEKKA JAKKULA, ILKKA DAHLSTROM, TIMO MANNINEN