Patents by Inventor Dean L. Keiter

Dean L. Keiter 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 of detecting an obstruction in a fluid flow line of a medical laboratory instrument
    Patent number: 5622869
    Abstract: An apparatus for detecting obstructions of a flow line. A detector housing is provided having a cavity therein. The detector housing has first and second openings into the cavity. The flow line is attached to the detector housing establishing a flow path through the first opening, the cavity, and the second opening, respectively. A pressure detector detects changes in pressure within the cavity, indicating the presence of an obstruction.
    Type: Grant
    Filed: July 10, 1995
    Date of Patent: April 22, 1997
    Assignee: Akzo Nobel N.V.
    Inventors: Gregory D. Lewis, Dean L. Keiter, Mario Moreno
  • Obstruction detector for a fluid flow line of a medical laboratory instrument
    Patent number: 5451373
    Abstract: An apparatus for detecting obstructions of a flow line. A detector housing is provided having a cavity therein. The detector housing has first and second openings into the cavity. The flow line is attached to the detector housing establishing a flow path through the first opening, the cavity, and the second opening, respectively. A pressure detector detects changes in pressure within the cavity, indicating the presence of an obstruction.
    Type: Grant
    Filed: February 16, 1994
    Date of Patent: September 19, 1995
    Assignee: AKZO N.V.
    Inventors: Gregory D. Lewis, Dean L. Keiter, Mario Moreno