Patents by Inventor George C. von Alfthan

George C. von Alfthan 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: 5212994
    Abstract: The invention relates to a measuring cell for analyzing solid granular or pulverous material, which measuring cell (1) is provided with an aperture (5) in the wall for a measuring window (6). Through the measuring window, the material fed in the measuring cell (1) can be analyzed according to the invention, so that inside the measuring cell (1) there is installed a feeder (10) in order to regulate the essentially continuous material flow passing through the measuring cell (1), and a guide member (8) in order to guide the material flow to pass by essentially near to the measuring window (6).
    Type: Grant
    Filed: March 8, 1991
    Date of Patent: May 25, 1993
    Assignee: Outokumpu Oy
    Inventors: George C. von Alfthan, Kari O. Mann
  • Patent number: 4876902
    Abstract: The invention relates to an apparatus for drawing samples from material containing solid particles, which material is in a flowing motion. In the apparatus, the sampling member (3, 13, 24) is connected to an adjusting device (4, 15, 26) and a suction member (6, 17, 25) so that the material flow coming from the sampling member (3, 13, 24) by means of the adjusting device (4, 15, 26) can be directed via the suction member (6, 17, 25) to form the sample.
    Type: Grant
    Filed: April 21, 1988
    Date of Patent: October 31, 1989
    Assignee: Outokumpu Oy
    Inventors: George C. von Alfthan, Jorma T. Helanniemi