Patents by Inventor David O. Kennedy

David O. Kennedy 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).

  • Patent number: 5967654
    Abstract: A binder system component metering apparatus for use in core sand mixing equipment comprising an elongate hollow vessel of substantially greater length than width and having upper and lower end portions, valves located in a lower end portion of the elongate vessel for introducing via hydrostatic pressure, liquid binder system components into the vessel so that as the vessel is filled the liquid presents an upper surface that rises vertically, and sensor located in the upper end portion of the elongate vessel to continuously sense the position of the liquid surface at infinite locations along the length of elongate vessel whereby the upper surface rises with minimum turbulence.
    Type: Grant
    Filed: March 28, 1997
    Date of Patent: October 19, 1999
    Assignee: Simpson Technologies Corporation
    Inventors: David O. Kennedy, Anthony J. Beyer
  • Patent number: 5664699
    Abstract: A binder system component metering apparatus for use in core sand mixing equipment comprising an elongate hollow vessel of substantially greater length than width and having upper and lower end portions, valves located in a lower end portion of the elongate vessel for introducing via hydrostatic pressure, liquid binder system components into the vessel so that as the vessel is filled the liquid presents an upper surface that rises vertically, and a sensor located in the upper end portion of the elongate vessel to continuously sense the position of the liquid surface at infinite locations along the length of elongate vessel whereby the upper surface rises with minimum turbulence.
    Type: Grant
    Filed: April 4, 1995
    Date of Patent: September 9, 1997
    Assignee: Simpson Technologies Corporation
    Inventors: David O. Kennedy, Anthony J. Beyer