The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
May. 28, 2019

Filed:

Sep. 11, 2015
Applicant:

Single Buoy Moorings, Inc., Marly, CH;

Inventors:

David C. Riggs, Aberdeen, GB;

Alpha Mahatvaraj, Aberdeen, GB;

Chandrashekhar Joshi, Aberdeen, GB;

Nagarjuna Jillella, Aberdeen, GB;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E02B 17/00 (2006.01); E21B 33/038 (2006.01); E21B 17/08 (2006.01); E21B 17/046 (2006.01); E21B 19/00 (2006.01); F16L 15/00 (2006.01); E21B 17/00 (2006.01);
U.S. Cl.
CPC ...
E21B 17/085 (2013.01); E21B 17/046 (2013.01); E21B 19/004 (2013.01); F16L 15/004 (2013.01); E21B 17/00 (2013.01); E21B 19/00 (2013.01);
Abstract

High-strength, fatigue-resistant pipe connectors suitable for use in offshore risers, tendons and pipelines, such as may be connected to floating production systems (FPSs) principally used in the production of oil and gas. The present connectors include tubular pin and box components with mating frusto-conical, concentrically-grooved mating surfaces which threadingly interlock, and non-threaded (e.g., flat) mating surfaces that seal and preload (e.g., preload at least a portion of each component in compression), via axial advancement of the pin component into the box component. In such connectors, axial movement of the pin into the mating box results the in radial expansion of the box and radial contraction of the pin until the concentric thread patterns match and interlockingly snap into the connected position.


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