Patents by Inventor John R. McCarvill

John R. McCarvill 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: 8117727
    Abstract: An apparatus and method adapted to facilitate removal of stator vane segments in a slot of a casing of a rotating machine with stator vanes segments and rotating blades. The apparatus includes a compression device adapted to apply a pushing force on a rear surface of a stator vane segment, a clearing element adapted to free adhesion materials holding the stator vane segment to the dovetailed slot of the lower casing of the rotating machine with stator vanes segments and rotating blades, and a tension device adapted to apply a pulling force on a forward part of the stator vane segment.
    Type: Grant
    Filed: September 24, 2008
    Date of Patent: February 21, 2012
    Assignee: General Electric Company
    Inventor: John R. McCarvill
  • Publication number: 20100071183
    Abstract: An apparatus and method adapted to facilitate removal of stator vane segments in a slot of a casing of a rotating machine with stator vanes segments and rotating blades. The apparatus includes a compression device adapted to apply a pushing force on a rear surface of a stator vane segment, a clearing element adapted to free adhesion materials holding the stator vane segment to the dovetailed slot of the lower casing of the rotating machine with stator vanes segments and rotating blades, and a tension device adapted to apply a pulling force on a forward pail of the stator vane segment.
    Type: Application
    Filed: September 24, 2008
    Publication date: March 25, 2010
    Inventor: John R. McCarvill
  • Patent number: 7412741
    Abstract: The cleaning system includes a plurality of generally dovetail-shaped slot blocks having a slot along a radial inner side, an abrasive media or belt and a backing tube. Upon insertion of the blocks into the dovetail slots of a rotor wheel and aligning the block slots with the cooling slot, the abrasive media and backing tube are inserted in the cooling slot tunnel. The abrasive media may extend through end feeder blocks. With the backing tube applying pressure radially outwardly against the abrasive media, back and forth motion applied manually from outboard of the rim of the rotor cleans the surfaces of the cooling slot without disassembly of the rotor.
    Type: Grant
    Filed: October 18, 2004
    Date of Patent: August 19, 2008
    Assignee: General Electric Company
    Inventors: Robert M. Roney, John R. McCarvill, Paul C. Bagley, Richard Hatley