Patents by Inventor Douglas B McCasker

Douglas B McCasker 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).

  • Well cleaning system
    Patent number: 7082952
    Abstract: A well-cleaning system (10) is provided with a control system (30) where waste liquid level sensors (35, 36) co-operate with timers (39, 40) to control the frequency and duration of the well-cleaning cycles. Chemicals can be injected into the water on demand from a well-conditioning sensor (38); and the well-cleaning system (10) can be operated when high H2S gas levels are detected in the well (20) by a H2S gas sensor (37).
    Type: Grant
    Filed: February 9, 2000
    Date of Patent: August 1, 2006
    Assignee: McBerns Pty LTD
    Inventors: Douglas B McCasker, David A Jobberns