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:
Oct. 16, 2018

Filed:

Jun. 19, 2014
Applicant:

Atlas Copco Industrial Technique Ab, Stockholm, SE;

Inventor:

Robin McGougan, Enskede, SE;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 3/00 (2006.01); E21B 17/22 (2006.01); E21B 19/16 (2006.01); E21B 19/18 (2006.01); B25B 21/00 (2006.01); B25F 5/00 (2006.01);
U.S. Cl.
CPC ...
B25B 21/00 (2013.01); B25F 5/001 (2013.01);
Abstract

A hand held power tool, for delivering a torque to a joint, includes a housing that houses a motor arranged to drive an input shaft; an output shaft arranged to provide a torque to the joint; and a planetary gear connecting the input shaft to the output shaft. A flywheel is arranged to rotate freely with respect to the housing. A cam block, loosely fitted inside the housing, is rotatively connected to a part of the planetary gear and connected to the housing via a cam profile, wherein an interaction between the cam block and the cam profile will force the cam block into contact with the flywheel when the cam block is rotated. Thus, any counterforces acting on the output shaft will be provided to the flywheel via the planetary gear, such that the operator will not need to provide any counterforces.


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