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:
Aug. 28, 2018
Filed:
May. 28, 2015
Dreco Energy Services Ulc, Edmonton, CA;
Kristoffer Braekke, Stavanger, NO;
DRECO ENERGY SERVICES ULC, Calgary, CA;
Abstract
A downhole tool includes a housing and a mandrel glidingly arranged within the housing, wherein the mandrel is formed as a piston. The flange is acting on a spring arranged around the mandrel. In a first position of the mandrel, a fluid flow can run 100% through the tool via a first nozzle at a first end of the housing, the inside of the mandrel and a second nozzle at a second end of the housing. At a predetermined flow rate and with the help of a passage arranged in the housing wall and connecting the first side of the tool with the space or ring room on the non-spring side of the mandrel and a side port in the mandrel on its spring side, the mandrel will be moved towards the second nozzle due to sufficient force acting on a flange of the mandrel thus overcoming the spring resistance.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile