Patents by Inventor Maoye Sun

Maoye Sun 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: 8016042
    Abstract: In accordance with certain embodiments, the present invention provides a connector for attaching to a multi-toothed profile on a wellhead features a tooth profile that staggers loading preferably starting at a loading surface furthest from the connector body sitting on the wellhead and moving toward the connector body. The staggered loading more evenly distributes stresses on the matching loading surfaces as compared to the result of using a tooth profile on the connector that nearly exactly matches the profile on the wellhead. The joint can then take advantage of an increased preload and exhibit improved stress characteristics when operating at high loading conditions.
    Type: Grant
    Filed: September 30, 2009
    Date of Patent: September 13, 2011
    Assignee: Cameron International Corporation
    Inventors: Michael W. Spiering, Maoye Sun, Paul D. Bunch, Eric D. Larson
  • Publication number: 20100078174
    Abstract: In accordance with certain embodiments, the present inveniton provides a connector for attaching to a multi-toothed profile on a wellhead features a tooth profile that staggers loading preferably starting at a loading surface furthest from the connector body sitting on the wellhead and moving toward the connector body. The staggered loading more evenly distributes stresses on the matching loading surfaces as compared to the result of using a tooth profile on the connector that nearly exactly matches the profile on the wellhead. The joint can then take advantage of an increased preload and exhibit improved stress characteristics when operating at high loading conditions.
    Type: Application
    Filed: September 30, 2009
    Publication date: April 1, 2010
    Applicant: CAMERON INTERNATIONAL CORPORATION
    Inventors: Michael W. Spiering, Maoye Sun, Paul D. Bunch, Eric D. Larson
  • Patent number: 7614453
    Abstract: In accordance with certain embodiments, the present invention provides a connector for attaching to a multi-toothed profile on a wellhead features a tooth profile that staggers loading preferably starting at a loading surface furthest from the connector body sitting on the wellhead and moving toward the connector body. The staggered loading more evenly distributes stresses on the matching loading surfaces as compared to the result of using a tooth profile on the connector that nearly exactly matches the profile on the wellhead. The joint can then take advantage of an increased preload and exhibit improved stress characteristics when operating at high loading conditions.
    Type: Grant
    Filed: June 1, 2006
    Date of Patent: November 10, 2009
    Assignee: Cameron International Corporation
    Inventors: Michael W. Spiering, Maoye Sun, Paul D. Bunch, Eric D. Larson
  • Publication number: 20070277983
    Abstract: In accordance with certain embodiments, the present invention provides a connector for attaching to a multi-toothed profile on a wellhead features a tooth profile that staggers loading preferably starting at a loading surface furthest from the connector body sitting on the wellhead and moving toward the connector body. The staggered loading more evenly distributes stresses on the matching loading surfaces as compared to the result of using a tooth profile on the connector that nearly exactly matches the profile on the wellhead. The joint can then take advantage of an increased preload and exhibit improved stress characteristics when operating at high loading conditions.
    Type: Application
    Filed: June 1, 2006
    Publication date: December 6, 2007
    Inventors: Michael W. Spiering, Maoye Sun, Paul D. Bunch, Eric D. Larson