Patents Assigned to Kaiku Limited
  • Method and apparatus for isolating a component from a fluid mixture
    Patent number: 6969468
    Abstract: The present invention relates to an apparatus and method for measuring a particulate characteristic of a particulate-containing fluid, in particular for monitoring the particulate content of lubricating or hydraulic fluids in a mechanical system in order to diagnose component failure.
    Type: Grant
    Filed: February 16, 2001
    Date of Patent: November 29, 2005
    Assignee: Kaiku Limited
    Inventors: Richard Stone, Richard Mark Dowdeswell, Mohammed El Hassan Amrani
  • Method and apparatus for the debris particulate characterization in lubricants
    Patent number: 6949936
    Abstract: The present invention relates to an apparatus and method for measuring a particulate characteristic of a particulate-containing fluid, in particular for monitoring the particulate content of lubricating or hydraulic fluids in a mechanical system in order to diagnose component failure.
    Type: Grant
    Filed: February 16, 2001
    Date of Patent: September 27, 2005
    Assignee: Kaiku Limited
    Inventors: Richard Stone, Richard Mark Dowdeswell, Mohammed El Hassan Amrani
  • Identifying changes in composition of liquids
    Patent number: 6511851
    Abstract: A method for identifying a change in the composition of a liquid, comprising the steps of applying a time varying electrical or electromagnetic input signal to the liquid in a range of frequencies encompassing a resonant frequency of an electrical circuit comprising the liquid; measuring an impedance quantity of the electrical circuit comprising the liquid by means of the output signal as a function of the frequency of the time varying electrical or resonant frequency input signal in said range of frequencies; determining a resonant frequency of the electrical circuit comprising the liquid; after a change in the composition of the liquid, measuring variation in the impedance quantity at or near to the previously determined resonant frequency of the electrical circuit comprising the liquid; and relating the variation in the impedance quantity at or near to the resonant frequency of the electrical circuit comprising the liquid to a change in the composition of the liquid.
    Type: Grant
    Filed: January 3, 2000
    Date of Patent: January 28, 2003
    Assignee: Kaiku Limited
    Inventors: Peter Alfred Payne, Richard Mark Dowdeswell, Mohammed El Hassan Amrani