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.
Patent No.:
Date of Patent:
Dec. 24, 2019
Filed:
Feb. 19, 2015
Tenaris Connections B.v., Amsterdam, NL;
Diego Dell'erba, Buenos Aires, AR;
Gaston Mazzaferro, Buenos Aires, AR;
Juan Carlos Gonzalez, Luxembourg, LU;
Tenaris Connections B.V., Amsterdam, NL;
Abstract
Oil well pipe component comprising a threaded portion, at least part whereof is coated with a layer of a corrosion-inhibiting material, that has been applied to at least the part of the threaded portion of the oil well pipe component by means of a method comprising a cataphoresis step from an aqueous bath, said method comprising—providing the oil well pipe component comprising a threaded portion; —immersing at least part of the threaded portion of the pipe component in a cataphoresis bath comprising water and suspended particles of corrosion-inhibiting material, and provided with an anode and a cathode means, the pipe component being connected to the cathode means; —inducing a current through the bath, in order to provide the corrosion-inhibiting material with a positive charge; —depositing a layer of the positively charged corrosion-inhibiting material onto the pipe component; and—removing the immersed part of the pipe component with the layer of corrosion-inhibiting material from the cataphoresis bath and allowing the corrosion-inhibiting material to set.