Patents by Inventor Colin J. Howard

Colin J. Howard 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).

  • Sedimentation rate measuring device and sampler therefor
    Patent number: 5431037
    Abstract: This invention relates to a device and method for the determination of the rate of sedimentation of particles in a liquid and for controlling the addition of a flocculant to the liquid in accordance with the sedimentation rate so determined. The apparatus comprises a sample chamber into which the liquid is drawn and held solely by maintenance of a reduced pressure in the chamber. The rate of sedimentation of the particles is then determined by any suitable means known in the art.
    Type: Grant
    Filed: May 3, 1994
    Date of Patent: July 11, 1995
    Assignee: Oscillation Pty Limited
    Inventor: Colin J. Howard