Patents by Inventor Theodore R. Nichols

Theodore R. Nichols 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).

  • Salt bridge for analytical chemistry system
    Patent number: 5294311
    Abstract: A salt bridge for a flow cell which includes a porous bridge element between fluid flow in the flow cell and in an internal reference fluid flow. The bridge element is surrounded by a body with a bore into which different tubes are located about the porous element. A cylindrical anchoring tube adjacent one end of the body is screw threaded into an aperture in the wall of the flow cell so that self-alignment of the salt bridge in the flow cell is effected. The salt bridge provides a conductivity path between the two flow paths without introducing another potential.
    Type: Grant
    Filed: April 2, 1992
    Date of Patent: March 15, 1994
    Assignee: Beckman Instruments, Inc.
    Inventors: Jack D. McNeal, Delbert D. Jackson, Theodore R. Nichols
  • Salt bridge for analytical chemistry system
    Patent number: 5130010
    Abstract: A salt bridge for a flow cell which includes a porous bridge element between fluid flow in the flow cell and in an internal reference fluid flow. The bridge element is surrounded by a body with a bore into which different tubes are located about the porous element. A cylindrical anchoring tube adjacent one end of the body is screw threaded into an aperture in the wall of the flow cell so that self-alignment of the salt bridge in the flow cell is effected. The salt bridge provides a conductivity path between the two flow paths without introducing another potential.
    Type: Grant
    Filed: March 13, 1989
    Date of Patent: July 14, 1992
    Assignee: Beckman Instruments, Inc.
    Inventors: Jack D. McNeal, Delbert D. Jackson, Theodore R. Nichols