Patents by Inventor Ivan Candiani

Ivan Candiani 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).

  • Bi-directional pressure energized axial seal and a swivel connection application
    Patent number: 9243711
    Abstract: A tubular connection has first and second tubular members having aligned bores with a common axis and having first and second seal surfaces, respectively. A metal seal has a first end portion that sealingly engages the first seal surface and a second end portion that sealingly engages the second seal surface. The metal seal has a sidewall with at least two folds. One of the folds defines an axial interior gap. The other of the folds defines an axial exterior gap. An exterior spacer member is positioned in the exterior gap to limit closer of the exterior gap in response to a greater pressure on the interior of the seal than on the exterior. An interior spacer member is positioned in the interior gap to limit closure of the interior gap in response to a greater pressure on the exterior of the seal than on the interior.
    Type: Grant
    Filed: December 27, 2011
    Date of Patent: January 26, 2016
    Assignee: Vetco Gray Inc.
    Inventors: Helvecio C. K. Silveira, Ivan Candiani, Leonardo Cardoso, Rodrigo Ferreira Dias
  • Bi-Directional Pressure Energized Axial Seal and a Swivel Connection Application
    Publication number: 20130020799
    Abstract: A tubular connection has first and second tubular members having aligned bores with a common axis and having first and second seal surfaces, respectively. A metal seal has a first end portion that sealingly engages the first seal surface and a second end portion that sealingly engages the second seal surface. The metal seal has a sidewall with at least two folds. One of the folds defines an axial interior gap. The other of the folds defines an axial exterior gap. An exterior spacer member is positioned in the exterior gap to limit closer of the exterior gap in response to a greater pressure on the interior of the seal than on the exterior. An interior spacer member is positioned in the interior gap to limit closure of the interior gap in response to a greater pressure on the exterior of the seal than on the interior.
    Type: Application
    Filed: December 27, 2011
    Publication date: January 24, 2013
    Applicant: Vetco Gray Inc.
    Inventors: Helvecio C.K. Silveira, Ivan Candiani, Leonardo Cardoso, Rodrigo Ferreira Dias