Patents by Inventor Colin Edward Brade

Colin Edward Brade 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).

  • Publication number: 20020168288
    Abstract: A method and apparatus for treating sewage sludge by heating in a sludge pasteurisation process in which small bubbles of steam are injected into a continuous flow of sludge to cause highly turbulent sludge flow conditions during which the steam condenses to heat the sludge. Incoming, untreated sludge is initially pre-heated as required and as available heat sources such as independent power plant or excess capacity of the steam generating boiler. Thus, a suitable treating temperature is more readily achieved. The heated sludge is retained in an insulated tank to allow the pasteurisation process to be completed. Heat dumping may be provided to regulate treatment temperatures.
    Type: Application
    Filed: May 8, 2002
    Publication date: November 14, 2002
    Inventor: Colin Edward Brade
  • Patent number: 6123857
    Abstract: A method of removing sludge from a continuously supplied sedimentation tank which discharges through a pipe having a substantially vertical section and an outlet at or just above the fluid level of the tank by supplying pulses of gas to the base of the vertical section of the tank to lift the sludge therein and discharge it from the pipe outlet in which the pulses are continued until the sludge thickness diminishes to a value which is determined by measuring one or more conditions of the sludge, the conditions including the measurement of the drop in level of the sludge at the pipe outlet after discharge due to an air pulse compared with that before discharge and/or the measurement of pressure of the shock wave produced against time and the time taken for this is stabilised to a predetermined value and/or the measurement of the amplitude of the pressure induced in the sludge after commencement of an air pulse and the time taken for this to reduce to a predetermined amplitude.
    Type: Grant
    Filed: April 23, 1998
    Date of Patent: September 26, 2000
    Assignee: Monsal Ltd
    Inventor: Colin Edward Brade