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:
Dec. 16, 2003
Filed:
Dec. 28, 2000
Gunnar Christer Hansson, Stockholm, SE;
Atlas Copco Tools AB, Nacka, SE;
Abstract
A power nut runner with a torque responsive shut-off capacity includes a housing ( ), and a rotation motor ( ) connected to an output shaft ( ) via a torque responsive release clutch ( ) in which torque is transferred via a cam mechanism ( ) between a driving clutch half ( ) and a driven clutch half ( ). A spring ( ) is arranged to bias and displace a first one of the clutch halves ( ) towards the other in an engagement direction, and a signal emitting release detecting sensor ( ), is provided in the housing ( ). An activation element ( ) is arranged to be thrown off an abutting contact with the spring biassed clutch half ( ) to reach an active position beyond its inactive low torque position as the spring biassed clutch half ( ) is abruptly returned to its engagement position after an axial release movement.