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.

Date of Patent:
Apr. 23, 2024

Filed:

Jan. 13, 2021
Applicant:

Stabil Drill Specialties, L.l.c., Lafayette, LA (US);

Inventor:

Sorin Gabriel Teodorescu, The Woodlands, TX (US);

Assignee:

Stabil Drill Specialties, LLC, Lafayette, LA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 17/07 (2006.01);
U.S. Cl.
CPC ...
E21B 17/073 (2013.01);
Abstract

A downhole shock absorbing sub which includes a tubular main stem extending through a sub housing and a lateral shock absorbing assembly positioned within the sub housing. The lateral shock absorbing assembly includes an activator ring positioned around the main stem, the activator ring including a plurality of wedge inserts positioned around a perimeter of the activator ring. A reaction collar is positioned on each side of the activator ring with the reaction collars including ramp surfaces engaged by the wedge inserts. A spring system is positioned to resist movement of the reaction collars away from the activator ring, whereby lateral movement of the main stem causes the wedge inserts to move the reaction collars against the spring system.


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