Patents by Inventor Ian K. Ludlow

Ian K. Ludlow 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).

  • Particle asymmetry analyzer having sphericity detectors
    Patent number: 5089714
    Abstract: An apparatus and method which provides a measure of the asymmetry as well as the size of individual fluid borne particles. Laser-light scattering techniques are employed to obtain data on the particles, which is then compared to data on known particle shapes to ascribe an asymmetry factor to the particles.
    Type: Grant
    Filed: June 4, 1990
    Date of Patent: February 18, 1992
    Assignee: The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern Ireland
    Inventors: Ian K. Ludlow, Paul H. Kaye
  • Portable particle analysers having plural detectors
    Patent number: 5043591
    Abstract: A portable particle analyzer is compact and can determine the size, geometry and number of particles in a sample of fluid. A laser beam (15) intercepts the flow of fluid (17) at the first focal point of a parabolic mirror (11). Light is scattered and collected by radiation collectors (13) and low angle scattered radiation is detected in a second chamber (19) by reflection by an ellipsoid mirror (20) towards a radiation collector (21). Photomultiplier units (23) convert the radiation collected into electrical signals for analysis.
    Type: Grant
    Filed: June 4, 1990
    Date of Patent: August 27, 1991
    Assignee: The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern Ireland
    Inventors: Ian K. Ludlow, Paul H. Kaye