Patents by Inventor Larry E. Purcell

Larry E. Purcell 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).

  • Floating cable loop control assembly
    Patent number: 5167307
    Abstract: An improved control assembly is provided for supporting a helically coiled flexible conductor between two components that are movable relative to one another. The control assembly is slidably movable along a support rod in response to movement of one component relative to the other and is floatable upon the support rod to enable the control assembly to maintain proper alignment with the support rod along the length of the rod. In addition, as convolutions of the coiled conductor are discharged over a knob at the end of the control assembly, the control assembly is rotationally indexed around the support rod so that wear of the interior surface of the control assembly is evenly distributed around the internal bore of the control assembly.
    Type: Grant
    Filed: July 29, 1991
    Date of Patent: December 1, 1992
    Assignee: The Babcock & Wilcox Company
    Inventors: Larry E. Purcell, James J. Krannitz
  • Externally adjustable flow restriction control for poppet valves
    Patent number: 5135198
    Abstract: An externally adjustable restriction control assembly for a poppet valve. The restriction control assembly is actuated through rotation of the valve stem. Upon rotation of the valve stem, a restriction control disc, threadably mounted to the valve stem guide, is moved toward or away from a seat provided within the housing. Movement of the restriction control disc thereby adjusts the effective cross-sectional flow area through the valve.
    Type: Grant
    Filed: May 30, 1991
    Date of Patent: August 4, 1992
    Assignee: The Babcock & Wilcox Company
    Inventors: Melvin A. Freund, James J. Krannitz, Larry E. Purcell