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:
May. 18, 2021
Filed:
Dec. 12, 2017
Applicant:
Lord Corporation, Cary, NC (US);
Inventor:
Michael R. Brown, Union City, PA (US);
Assignee:
Lord Corporation, Cary, NC (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 47/024 (2006.01); E21B 47/017 (2012.01); E21B 17/07 (2006.01);
U.S. Cl.
CPC ...
E21B 47/024 (2013.01); E21B 17/07 (2013.01); E21B 47/017 (2020.05);
Abstract
A snubber tool can be installed in a downhole tool string to reduce vibration in the downhole tool string. The snubber tool includes two compliance components having different stiffness properties and pre-compression and a drive washer that selectively applies further compression to the compliance components in response to external forces acting on the snubber tool. The compliance components retain their initial pre-compression under external loading of the snubber tool.