Patents Assigned to Peter R. Fielden
  • Flow injection analysis
    Patent number: 5156814
    Abstract: A liquid pump, particularly though not exclusively suitable for use in flow injection analysis, and comprising a reservoir 3 an outlet tube 6 for conducting liquid 2 from the reservoir and a device for introducing gas into the liquid in the reservoir to displace liquid therefrom through the tube. The gas may be introduced in the form of a series of rapid pulses of controlled duration and frequency and is introduced at a fixed level relative to the entrance to the outlet tube.
    Type: Grant
    Filed: December 3, 1990
    Date of Patent: October 20, 1992
    Assignees: University of Manchester Institute of Science & Technology, Imperial Chemical Industries PLC, Peter R. Fielden
    Inventors: Peter R. Fielden, John R. P. Clarke