Patents by Inventor John Mathew Hand

John Mathew Hand 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).

  • Methods and apparatus for regulating airflow supply systems
    Patent number: 7493770
    Abstract: A check valve is provided that includes a valve housing that has a side wall and a flow path therethrough, the side wall defining the flow path. The flow path includes an inlet, an outlet, and a centerline extending between the inlet and the outlet. At least one control member is positioned in the flow path and movable between a first position, wherein fluid flow through the valve housing is substantially prohibited and a second position wherein fluid flow is permitted. The side wall includes a stop configured to limit movement of the at least one control member at a pre-determined stop angle relative to the flow path centerline.
    Type: Grant
    Filed: August 9, 2004
    Date of Patent: February 24, 2009
    Assignee: General Electric Company
    Inventors: Eric Jon Christianson, Jerry Wayne Myers, John Mathew Hand, Kevin Todd Bowers