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:
Oct. 08, 2019
Filed:
Mar. 02, 2016
Welltec A/s, Allerød, DK;
Rasmus Sommer, Allerød, DK;
Welltec A/S, Allerød, DK;
Abstract
A downhole stroking tool () comprising a housing (), a first chamber (), a first tool part () comprising a pump unit () providing pressurized fluid to the chamber, a shaft () penetrating the chamber, and a first piston () dividing the first chamber into a first chamber section () and a second chamber section (). The piston is connected to or forms part of the housing which forms part of a second tool part () and is slidable in relation to the shaft so that the housing moves in relation to the shaft, the shaft being stationary in relation to the pump unit during pressurization of the first or the second chamber section, thereby generating a pressure on the piston, wherein the shaft is fixedly connected with the first tool part, and wherein the housing is slidable in relation to the first tool part and overlaps the first tool part.