Patents by Inventor Lawrence E. Parker

Lawrence E. Parker 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).

  • Hybrid butterfly fluid control valve
    Patent number: 7032883
    Abstract: A flow control valve system has a housing that defines a flow path, a throttle element disposed in the flow path, and a linkage assembly coupled to the throttle element and oriented substantially outside the flow path. With such an orientation, the linkage assembly has minimal effect on a pressure gradient or pressure drop within the flow control valve system. As such, the linkage assembly allows the flow control valve system to deliver fluid from a fluid input channel to a fluid output channel at a relatively large volume flow rate.
    Type: Grant
    Filed: April 7, 2004
    Date of Patent: April 25, 2006
    Assignee: HR Textron, Inc.
    Inventors: Delton M. Boardman, Lawrence E. Parker