Patents by Inventor Harri Allonen

Harri Allonen 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).

  • Patent number: 5703574
    Abstract: A method and device for transferring a measurement signal from a revolving roll used in a paper making machine, in which detectors are arranged in the transverse direction of the roll, preferably uniformly spaced. Measurement signals generated by the detectors are passed to a measurement signal reading unit for reading the measurement of the detectors which is installed preferably at the end of the roll. From the measurement signal reading unit, the signals are transmitted wirelessly further as telemeter signals to a reading unit which is placed outside the roll and connected to a PC or equivalent computer. In the measurement signal reading unit for reading the measurement of the detectors, a transponder is arranged into which an unique code is coded for each detector. The signals are processed in the entire measurement process as analog signals.
    Type: Grant
    Filed: March 14, 1994
    Date of Patent: December 30, 1997
    Assignee: Valmet Corporation
    Inventor: Harri Allonen
  • Patent number: 5379652
    Abstract: Method and device for measuring the nip force and/or the nip pressure in a nip formed by a revolving roll or by a corresponding band employed in the manufacture of paper in which measurement detectors are arranged in a series and placed in the transverse direction of the revolving roll, preferably over the entire width of the paper web. The measurement signals of the detectors are passed to a measurement amplifier unit whose connectors are controlled so that, through the measurement amplifier unit, the signal of each measurement detector is passed to a telemeter transmitter placed in connection with the revolving roll. The telemetric messages is transmitted by the telemeter transmitter wirelessly and received by means of a telemeter receiver placed outside the revolving roll. The revolving roll is provided with a transmitter/receiver in proximity to the position of the transmitter receiver placed outside the roll.
    Type: Grant
    Filed: September 14, 1993
    Date of Patent: January 10, 1995
    Assignee: Valmet Paper Machinery Inc.
    Inventor: Harri Allonen