Patents by Inventor Thomas A. Safstron

Thomas A. Safstron 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).

  • Liquid sampling apparatus with retention means
    Patent number: 4563332
    Abstract: An apparatus for preparing a sample of liquid for examination and analysis. The apparatus includes a tube closed at one end and open at the other, and a pipette dimensioned for insertion into the tube. The pipette has a sealing surface which is slightly smaller in diameter than the inside diameter of the tube. Protruding from the sealing surface is a rib which is aligned along the longitudinal axes of the pipette and which engages a portion of the inside wall of the tube to maintain the pipette in the tube.
    Type: Grant
    Filed: April 27, 1983
    Date of Patent: January 7, 1986
    Assignee: ICL Scientific, Inc.
    Inventors: Vance C. Mitchell, Thomas A. Safstron