Patents Assigned to Perten Instruments Inc.
  • Publication number: 20070183477
    Abstract: A meter for determining the temperature of a grain sample comprises two long conductors (7, 8) having temperature dependent resistance and being bent to cover a certain area, a current sensor (9,10) connected to the conductors and means for calculating the resistance of the conductive element based on the measured current and the temperature based on the calculated resistance value.
    Type: Application
    Filed: May 12, 2006
    Publication date: August 9, 2007
    Applicant: Perten Instruments Inc.
    Inventor: Robert Funk
  • Publication number: 20060248943
    Abstract: A method of determining density of grains, comprises the steps of: (a) filling a test cell (3) having a known volume with an excess of grains, (b) removing the excess grains from the test cell (3), (c) gathering the removed excess of grains in a container (4) having a known weight when empty, (d) weighing the container (4) together with the excess of grains, (e) filling the container (4) with grains from the test cell (3) after the step of weighing the container (4) together with the excess of grains has been performed and weighing the container (4) together with its content of grains, and (f) determining a correction factor for the density of said grains. This factor is dependent on the weight of the excess grains, and permits precise calculation the density of the grains.
    Type: Application
    Filed: May 12, 2006
    Publication date: November 9, 2006
    Applicant: Perten Instruments Inc.
    Inventor: Robert Funk
  • Publication number: 20060013279
    Abstract: The present invention relates to a grain moisture meter comprising means (1,2) for introducing a grain sample into a test cell (3), said test cell comprising means for measuring the dielectric constant of the grain sample, and means for calculating the moisture content of said sample based on the measured dielectric constant. According to the invention the grain moisture meter comprises a strike off element (7) for removing excess of grains delivered to the test cell (3), a bottom container (4) disposed under the test cell (3) and having such an extension that grains removed from the test cell (3) by the strike off element (7) will fall into said container (4), means for unloading grains from the test cell into said container (4), and means (5) for weighing the container and its possible content.
    Type: Application
    Filed: July 14, 2004
    Publication date: January 19, 2006
    Applicant: Perten Instruments Inc.
    Inventor: Robert Funk