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:
Jul. 30, 2019
Filed:
Aug. 20, 2015
E Holstad Holding As, Sola, NO;
Tommy Svartvatn, Mo i Rana, NO;
Tom Henning Bode, Stavanger, NO;
Frode Flugheim Heggestad, Sola, NO;
Arnulf Bye, Bryne, NO;
Thomas Berge, Hafrsfjord, NO;
Evald Holstad, Sola, NO;
Thomas Bergan Johansen, Stavanger, NO;
Oyvind Naess Johannessen, Sandnes, NO;
E Holstad Holding AS, Sola, NO;
Abstract
This invention relates to a sealing apparatus, system and method for use in a well pipe. The apparatus has a mandrel arranged around a center axis through the apparatus, a radially movable gripping device arranged around the mandrel, a radially movable packer element arranged around the mandrel, and an axially movable activation device designed to set up axial forces for activating the apparatus. The apparatus also includes a radially movable centralizer arranged around the mandrel for centring the apparatus. The activation device being operatively connected to the gripping device, the packer element and the centralizer for the respective activation and radial movement of each, via power transmission of axial forces, between retracted, passive positions and expanded, active positions relative to the center axis of the apparatus.