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. 30, 2024

Filed:

Aug. 21, 2023
Applicant:

Petromac Ip Limited, Auckland, NZ;

Inventor:

Stephen Peter McCormick, Auckland, NZ;

Assignee:

PETROMAC IP LIMITED, Auckland, NZ;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 17/10 (2006.01); E21B 17/046 (2006.01);
U.S. Cl.
CPC ...
E21B 17/1057 (2013.01); E21B 17/0465 (2020.05);
Abstract

A device for transporting a tool string down a bore comprises a single unitary part mandrel comprising a connection at each end of the mandrel for in-line connection of the device in a tool string and a single unitary part annular body rotationally mounted to the mandrel to rotate relative to the mandrel about a longitudinal axis of the mandrel or tool string. A pair of wheels is rotationally mounted to the annular body to rotate relative to the mandrel on a rotational axis perpendicular to the longitudinal axis of the tool string. A collar is releasably coupled to the mandrel to allow for assembly of the annular body onto the mandrel from one end of the mandrel when the collar is disassembled from the mandrel and axially retain the annular body on the mandrel when the collar is assembled to the mandrel.


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