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:
Jan. 05, 2010
Filed:
May. 24, 2006
Ernst Arne Johan Bram, Kalmar, SE;
Magnus Liebert Gustavsson, Läckeby, SE;
Ernst Arne Johan Bram, Kalmar, SE;
Magnus Liebert Gustavsson, Läckeby, SE;
Atlas Copco Construction Tools AB, Nacka, SE;
Abstract
A breaker tool has a chassis carrying a motor, an impact mechanism operating in a certain working direction, an enclosure rigidly connected to the chassis and surrounding at least the motor, and a handle device including two handles protruding from opposite sides of the enclosure and are vibration damped relative to the chassis via swing arms, where the swing arms are arranged to accomplish a flexible parallel movement providing coupling between the chassis and the handle device. The handle device includes a bridge to which the handles are secured. The swing arms are pivotally connected to the bridge via first pivots and to the chassis via second pivots, where at least one of the first and second pivots is a torsion pivot that provides a limited torsion damped oscillation of the bridge relative to the chassis in a direction substantially parallel with the working direction.