Patents Assigned to Tech Ref, Inc.
  • SAMPLE CELL
    Publication number: 20030147071
    Abstract: A sample cell for use in X-ray fluorescence devices employs a ring and cup combination to support a radiation-permeable membrane through which a sample is analyzed. The ring component has a protruding lip that is configured to enable the cell to more readily drop into a receiving groove formed about the analyzer aperture.
    Type: Application
    Filed: February 6, 2002
    Publication date: August 7, 2003
    Applicant: Tech Ref, Inc.
    Inventor: James C. Eckert
  • Sample cell
    Patent number: 6603544
    Abstract: A sample cell for use in X-ray fluorescence devices employs a ring and cup combination to support a radiation-permeable membrane through which a sample is analyzed. The ring component has a protruding lip that is configured to enable the cell to more readily drop into a receiving groove formed about the analyzer aperture.
    Type: Grant
    Filed: February 6, 2002
    Date of Patent: August 5, 2003
    Assignee: Tech Ref, Inc.
    Inventor: James C. Eckert
  • Sample cell
    Patent number: 4448311
    Abstract: A sample cell useful in analytical devices employing X-ray fluorescence as the detection method. The sample cell includes a cup which telescopically receives a ring. A radiation permeable membrane is sandwiched between the outside of the cup and the inside of the ring so as to be tightly stretched across the cup. The cup and ring are both molded from virgin polyethylene mixed with a silicone oil.
    Type: Grant
    Filed: January 24, 1983
    Date of Patent: May 15, 1984
    Assignee: Tech Ref, Inc.
    Inventor: Edwin A. Houser