Patents by Inventor Robert L. Laird

Robert L. Laird 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).

  • Method and system for cleaning filter media support structures
    Patent number: 8323514
    Abstract: The present invention is related to a method and system for cleaning a media support structure in a filter cell in a liquid filter system, wherein a cleaning solution does not significantly enter a filter media zone. The method comprises supplying a cleaning solution to a filter cell to a level sufficient to submerge the media support structure, but not to significantly enter the filter media zone. Additionally, the cleaning solution level is monitored to ensure the cleaning solution does not significantly enter the filter media zone. Alternatively, the cleaning solution may be continuously recirculated and reintroduced to the filter cell during the cleaning operation.
    Type: Grant
    Filed: March 18, 2009
    Date of Patent: December 4, 2012
    Assignee: Xylem Water Solutions Zelienople LLC
    Inventors: John L. Geibel, Eugene M. Vegso, Christopher J. Ball, Robert L. Laird, Thomas M. Getting, Dean T. Berkebile
  • Method and System for Cleaning Filter Media Support Structures
    Publication number: 20100237025
    Abstract: The present invention is related to a method and system for cleaning a media support structure in a filter cell in a liquid filter system, wherein a cleaning solution does not significantly enter a filter media zone. The method comprises supplying a cleaning solution to a filter cell to a level sufficient to submerge the media support structure, but not to significantly enter the filter media zone. Additionally, the cleaning solution level is monitored to ensure the cleaning solution does not significantly enter the filter media zone. Alternatively, the cleaning solution may be continuously recirculated and reintroduced to the filter cell during the cleaning operation.
    Type: Application
    Filed: March 18, 2009
    Publication date: September 23, 2010
    Applicant: ITT WATER & WASTEWATER LEOPOLD, INC.
    Inventors: John L. Geibel, Eugene M. Vegso, Christopher J. Ball, Robert L. Laird, Thomas M. Getting, Dean T. Berkebile