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:
Jun. 18, 2024

Filed:

Mar. 22, 2019
Applicant:

Kaseum Holdings Limited, Aberdeen, GB;

Inventors:

Paul Andrew Church, Aberdeen, GB;

Peter Alan Joiner, Aberdeen, GB;

Andrew John Elrick, Peterhead, GB;

Iain Morrison Macleod, Newmachar, GB;

Assignee:

KASEUM HOLDINGS LIMITED, Aberdeen, GB;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 17/02 (2006.01); E21B 41/00 (2006.01); E21B 47/01 (2012.01); H02K 5/24 (2006.01); H02K 7/102 (2006.01); H02K 7/116 (2006.01); H02K 11/00 (2016.01); H02K 11/33 (2016.01); H02P 3/22 (2006.01);
U.S. Cl.
CPC ...
E21B 47/01 (2013.01); E21B 17/028 (2013.01); E21B 41/00 (2013.01); H02K 5/24 (2013.01); H02K 7/1025 (2013.01); H02K 7/116 (2013.01); H02K 11/0094 (2013.01); H02K 11/33 (2016.01); H02P 3/22 (2013.01); H02K 2211/03 (2013.01);
Abstract

A downhole tool () comprises a power control module (), which includes a battery pack () for supplying power to components of the tool, and an electronic control circuit () for controlling the supply of power by the battery pack. The electronic control circuit () and battery pack () are contained within a housing () that allows their insertion and removal as a single unit. The tool () also comprises an electric motor () for powering a gear assembly (), and a braking system comprising an electrical and a magnetic brake for braking the motor () when required. The gear assembly () comprises two or more stages (), each having a sun gear () with a respective diameter, and each sun gearhaving a raised convex dimple (LD,UD,LD,UD) that is in constant touching contact with the adjacent sun gear's () raised convex dimple (LD,UD,LD,UD), allowing load experienced by the tool () to be transferred along a load path including the dimples (LD,UD,LD,UD), reducing vibrations and shocks.


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