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:
Mar. 31, 2015
Filed:
Jun. 11, 2010
Karl Johan Lars Elsmark, Salsjö-Boo, SE;
Karl Johan Lars Elsmark, Salsjö-Boo, SE;
Atlas Copco Industrial Technique Aktiebolag, Stockholm, SE;
Abstract
A portable power wrench is controlled by an operation control unit and comprises a housing () with a rotation motor, a gear casing () including a gearing () and a drive spindle (} and being releasably and/or rotatably connected to the housing via a swivel or multi-position connection, an operation parameter sensing device () is associated with the drive spindle (). The sensing device () communicates with the operation control unit via a first signal transferring device () which is disposed between the drive spindle () and the gear casing (), and a second signal transferring device () is disposed between the gear casing () and the housing (), wherein the second signal transferring device () communicates with the operation control unit. At least the first signal transferring device () between the drive spindle () and the gear casing () comprises a contact free transfer device.