Patents by Inventor Riitta Luukkala

Riitta Luukkala 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).

  • Precipitation/hail sensor and method for precipitation rate measurement
    Patent number: 7249502
    Abstract: The invention relates to a precipitation detector (1) and method for measurement of precipitation parameters. The detector (1) includes a frame (5), a surface (2) mounted on the frame (5) and adapted to receive hydrometeors, and detection means (3) for converting the impact impulses of hydrometeors into an electric signal. According to the invention, the surface (2) receiving the impact of the hydrometeors is convex, stiff and rigidly connected to the detector frame (4) with the detection means (3) being permanently connected to the surface (2) receiving the impact of the hydrometeors.
    Type: Grant
    Filed: September 23, 2002
    Date of Patent: July 31, 2007
    Assignee: Vaisala Oyj
    Inventors: Riitta Luukkala, legal representative, Atte Salmi, Jouni Ikonen, Jan Lönnqvist, Heikki Turtiainen, Mauri Luukkala, deceased
  • Percipitation/hail sensor and method for precipitation rate measurement
    Publication number: 20050174720
    Abstract: The invention relates to a precipitation detector (1) and method for measurement of precipitation parameters. The detector (1) comprises a frame (5), a surface (2) mounted on the frame (5) and adapted to receive hydrometeors, and detection means (3) for converting the impact impulses of hydrometeors into an electric signal. According to the invention, the surface (2) receiving the impact of the hydrometeors is convex, stiff and rigidly connected to the detector frame (4) with the detection means (3) being permanently connected to the surface (2) receiving the impact of the hydrometeors.
    Type: Application
    Filed: September 23, 2002
    Publication date: August 11, 2005
    Inventors: Mauri Luukkala, Atte Salmi, Jouni Ikonen, Jan Lonnquist, Heikki Turtiainen, Veli Luukkala, Vesa Luukkala, Riitta Luukkala