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:
Sep. 09, 1986
Filed:
Sep. 26, 1985
Hydril Company, Houston, TX (US);
Abstract
A tool for installing a corrosion barrier ring into its groove behind the threads of a tapered box end comprises a tapered metallic liner for covering the threads and a suitable mandrel for carrying the ring to its location through the liner. A suitable seating tool may be used for the final seating of the ring in the groove. The tip is notched to permit axial deformation of the ring, but not appreciable radial deformation, so as to allow the ring to be positioned to the location of the groove. The tip of the mandrel is sized to prevent the ring from sliding over the mandrel as the mandrel is pushed through the liner. Rotating the mandrel starts the ring into the groove by straightening out the ring deformations and permits removal of the mandrel and the liner. The seating tool is then subsequently used for the final seating of the ring in its groove. Stacked tip pieces permit adjusting the contour and size of the seating tool tip to accommodate to a variety of ring shapes and sizes. When matched with the box member length, the body of the seating tool becomes a determiner for determining when the ring is properly seated.