Patents by Inventor Matti Putkiranta

Matti Putkiranta 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: 8717550
    Abstract: The invention relates to a method for detecting biological material in an airstream, in which method the airstream is fed with the aid of sampling devices, a light beam is emitted towards the airstream, a fluorescence signal depicting the fluorescence of the particle is created, a scattering signal depicting the scattering of the light of the particle is created, the fluorescence signal and the scattering signal are converted into discrete values, and an alarm value is defined. The discrete values are recorded cumulatively as hit points in an at least 2-dimensional measurement space equipped with selected dimensions, at least one index area is preselected from the measurement space, a cumulative index is calculated at an index frequency from the hit points accumulated on the each preselected index area, and an alarm value, showing the presence of a selected biological material, is defined from the indices by using a preselected criterion.
    Type: Grant
    Filed: June 7, 2011
    Date of Patent: May 6, 2014
    Assignee: Environics Oy
    Inventors: Kauko Janka, Jorma Keskinen, Matti Putkiranta, Sampo Saari, Katja Bengtsson
  • Publication number: 20130077087
    Abstract: The invention relates to a method for detecting biological material in an airstream, in which method the airstream is fed with the aid of sampling devices, a light beam is emitted towards the airstream, a fluorescence signal depicting the fluorescence of the particle is created, a scattering signal depicting the scattering of the light of the particle is created, the fluorescence signal and the scattering signal are converted into discrete values, and an alarm value is defined, the discrete values are recorded cumulatively as hit points in an at least 2-dimensional measurement space equipped with selected dimensions, at least one index area is preselected from the said measurement space, a cumulative index is calculated at an index frequency from the hit points accumulated on the each preselected index area, an alarm value, showing the presence of a selected biological material, is defined from the said indices by using a preselected criterion.
    Type: Application
    Filed: June 7, 2011
    Publication date: March 28, 2013
    Applicant: ENVIRONICS OY
    Inventors: Kauko Janka, Jorma Keskinen, Matti Putkiranta, Sampo Saari, Katja Bengtsson