Patents by Inventor Dean Keiter

Dean 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).

  • Obstruction detector for a fluid flow line of a medical laboratory instrument
    Patent number: 5814275
    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: December 12, 1996
    Date of Patent: September 29, 1998
    Assignee: Akzo Nobel N.V.
    Inventors: Gregory D. Lewis, Dean Keiter, Mario Moreno
  • Heated liquid sampling probe for an automated sampling apparatus
    Patent number: 5178019
    Abstract: A heated liquid sampling probe for an automated sampling apparatus includes a sampling tube for drawing up a volume of liquid. The tube is connectable to an automated sampling apparatus including a chassis. A capacitance exists between the sampling tube and the chassis. An electrical heater is arranged for heating the tube and a volume of liquid contained therein. The electrical heater increases the capacitance between the tube and the chassis. A capacitance lowering mechanism is provided for lowering the increase in capacitance due to the heater.
    Type: Grant
    Filed: March 26, 1991
    Date of Patent: January 12, 1993
    Assignee: Akzo N.V.
    Inventor: Dean Keiter