Patents by Inventor Kenneth D. Calvert

Kenneth D. Calvert 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).

  • Method and apparatus for installing a prepackaged piston assembly in an engine
    Publication number: 20040255776
    Abstract: This invention relates generally to a piston assembly and more specifically to a piston assembly in a prepackaged configuration. The prepackaged piston assembly is ready for immediate installation into an engine or compressor. The piston assembly has a plurality of rings preinstalled on a piston member and a sleeve position about the piston member and the plurality of rings maintaining the rings in a compressed position ready for installation into an engine. The piston assembly is lowered into a cylinder bore, the sleeve contacts the top surface of a block and the piston assembly can be easily installed into the cylinder bore without the need for the mechanic to compress the plurality of rings. Thus the present invention reduces time and expense required for rebuilding and engine and increases the quality of the rebuild.
    Type: Application
    Filed: July 23, 2004
    Publication date: December 23, 2004
    Inventors: Kenneth D. Calvert, Edward R. Gillis, Kevin M. Scott, Houston Weaver, Michael D. Wesner
  • Method and apparatus for installing a prepackaged piston assembly in an engine
    Patent number: 6779660
    Abstract: This invention relates generally to a piston assembly and more specifically to a piston assembly in a prepackaged configuration. The prepackaged piston assembly is ready for immediate installation into an engine or compressor. The piston assembly has a plurality of rings preinstalled on a piston member and a sleeve position about the piston member and the plurality of rings maintaining the rings in a compressed position ready for installation into an engine. The piston assembly is lowered into a cylinder bore, the sleeve contacts the top surface of a block and the piston assembly can be easily installed into the cylinder bore without the need for the mechanic to compress the plurality of rings. Thus the present invention reduces time and expense required for rebuilding and engine and increases the quality of the rebuild.
    Type: Grant
    Filed: September 21, 2001
    Date of Patent: August 24, 2004
    Assignee: Caterpillar Inc
    Inventors: Kenneth D. Calvert, Edward R. Gillis, Kevin M. Scott, Houston Weaver, Jr., Michael D. Wesner
  • Method and apparatus for installing a prepackaged piston assembly in an engine
    Patent number: 6318551
    Abstract: This invention relates generally to a piston assembly and more specifically to a piston assembly in a prepackaged configuration. The prepackaged piston assembly is ready for immediate installation into an engine or compressor. The piston assembly has a plurality of rings preinstalled on a piston member and a sleeve position about the piston member and the plurality of rings maintaining the rings in a compressed position ready for installation into an engine. The piston assembly is lowered into a cylinder bore, the sleeve contacts the top surface of a block and the piston assembly can be easily installed into the cylinder bore without the need for the mechanic to compress the plurality of rings. Thus the present invention reduces time and expense required for rebuilding and engine and increases the quality of the rebuild.
    Type: Grant
    Filed: November 10, 1999
    Date of Patent: November 20, 2001
    Assignee: Caterpillar Inc.
    Inventors: Kenneth D. Calvert, Weaver Houston, Jr., Michael D. Wesner