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:
Mar. 08, 2022
Filed:
Sep. 14, 2018
Interwell Norway As, Hafrsfjord, NO;
Espen Hiorth, Trondheim, NO;
Terje Stormo, Trondheim, NO;
Interwell Norway AS, Hafrsfjord, NO;
Abstract
A well tool device includes a mandrel device having an axial center axis, a housing device provided radially outside of the mandrel device, and a ratchet system. The ratchet system includes a grooved outer surface area of the mandrel device, a first locking ring including a grooved inner surface area engaged with the grooved outer surface area of the mandrel device, a grooved outer surface area, and an axial slit allowing radial expansion of the first locking ring. The first locking ring is engaged with the outer housing. The ratchet system is configured to allowing relative axial movement between the mandrel device and the first locking ring in a first axial direction and to prevent relative axial movement between the mandrel device and the locking ring in a second direction opposite of the first direction. The ratchet system further includes a second locking ring provided radially outside the first locking ring, the second locking ring including a grooved inner surface area engaged with the grooved outer surface area of the first locking ring, and an axial slit allowing radial expansion of the second locking ring. The second locking ring is engaged with the outer housing.