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US 8,220,844 B2Granted
Threaded element of a component with opposed threading portions and corresponding tubular threaded connection
AssigneesVallourec Mannesmann Oil & Gas France, Sumitomo Metal Industries, Ltd.
InventorsLaurent Gillot, Eric Verger, Olivier Tartar
Life of this patent
Estimating the term…
Abstract
A threaded element of a component includes at least first and second threading portions each including threads each including a stabbing flank and a loading flank. The stabbing flanks and loading flanks of the threads of the first threading portion and the threads of the second threading portion are inclined in an opposed manner with respect to the radial direction.
Claims22
A threaded element of a component, comprising:
- a free end and at least first and second threading portions each comprising threads each comprising a stabbing flank and a loading flank, said first threading portion being closest to said free end and said second threading portion being closest to a central non-threaded portion of said component,
- wherein the stabbing flanks and the loading flanks of the threads of said first threading portion and the threads of said second threading portion are inclined in an opposed manner with respect to a radial direction, in a cross section along a longitudinal axis of the said element.
A threaded male or female element of a component, comprising:
- a free end and at least first and second threading portions adapted to be made up onto two threading portions of a respectively female or male threaded element of another component to constitute a made up assembly with said other component, each comprising threads each comprising a stabbing flank and a loading flank, said first threading portion being closest to said free end and said second threading portion being closest to a central non-threaded portion of said component,
- wherein the stabbing flanks and the loading flanks of the threads of said first threading portion and the threads of said second threading portion are inclined in an opposed manner with respect to a radial direction.
Dependencies are inferred from the claim text.