Patents by Inventor Jack R. Uren, Jr.

Jack R. Uren, Jr. 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).

  • Method for washing magnetic particles in a vessel with a bottom pull
    Patent number: 5264042
    Abstract: An apparatus for washing pellets of magnetic particles magnetically bound to the bottom of a test tube employs a liquid handling probe having an aspiration channel with a forked inlet for positioning the probe onto the periapical region of the test tube for optimizing both the aspiration and expression of liquids. While contacting the periapical region of the test tube, the forked inlet may aspirate liquid adjacent to the pellet without contacting the magnetic particles. Furthermore, the contact between the forked inlet and the periapical region of the test tube, serves to position the outlet of the liquid channel directly over the pellet for dislodging and resuspending the magnetically bound pellet with a forceful stream of wash liquid.
    Type: Grant
    Filed: April 22, 1992
    Date of Patent: November 23, 1993
    Inventors: John R. Wells, Jack R. Uren, Jr.
  • Apparatus for washing magnetic particles in a vessel with a bottom pull
    Patent number: 5113886
    Abstract: An apparatus for washing pellets of magnetic particles magnetically bound to the bottom of a test tube employs a liquid handling probe having an aspiration channel with a forked inlet for positioning the probe onto the periapical region of the test tube for optimizing both the aspiration and expression of liquids. While contacting the periapical region of the test tube, the forked inlet may aspirate liquid adjacent to the pellet without contacting the magnetic particles. Furthermore, the contact between the forked inlet and the periapical region of the test tube, serves to position the outlet of the liquid channel directly over the pellet for dislodging and resuspending the magnetically bound pellet with a forceful stream of wash liquid.
    Type: Grant
    Filed: May 8, 1990
    Date of Patent: May 19, 1992
    Assignee: Source Scientific Systems, Inc.
    Inventors: John R. Wells, Jack R. Uren, Jr.