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. 09, 2007
Filed:
Mar. 14, 2005
Christian Koschel, Augsburg, DE;
Rolf Spangenberg, Gauting, DE;
Eberhard Lang, Stuttgart, DE;
Hilti Aktiengesellschaft, Schaan, LI;
Abstract
An automatic balancing device for a rotatable system includes a track (18) arranged about a rotational axis (H) of the rotatable system and having two surfaces (22, 22) inclined toward each other in a direction of a centrifugal force acting (F) acting on at least one balancing body (20) which is received in a cross-section formed by the two inclined surfaces (22, 22) and limited by an elastic locking element (24) arranged therebetween for displacing the at least one balancing body (20) away from the inclined surfaces (22, 22) in a direction opposite the direction of the centrifugal force (F) and for pressing the at least one balancing body (20) against an inner boundary of the track (18) for locking the balancing body (20) when a rotational speed of the system is below a predetermined threshold.