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:
May. 26, 2015
Filed:
Nov. 29, 2010
Applicants:
Hans-peter Ackermann, Tirschenreuth, DE;
Peter Janner, Krummennaab, DE;
Inventors:
Hans-Peter Ackermann, Tirschenreuth, DE;
Peter Janner, Krummennaab, DE;
Assignee:
HAMM AG, Tirschenreuth, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E01C 19/28 (2006.01); E02D 3/074 (2006.01);
U.S. Cl.
CPC ...
E01C 19/286 (2013.01); E01C 19/282 (2013.01); E02D 3/074 (2013.01);
Abstract
A compaction device includes at least one traveling drum rotatable about a drum shaft and having vibration exciters including unbalanced masses rotating out of phase by 180 degrees in the same direction of rotation and generating an oscillation torque about the drum shaft, and having a drive shaft running coaxial to the drum shaft for driving the vibration exciters. The drum is divided at least once and each drum part includes at least two coupled vibration exciters mounted at a distance from the drum shaft in the drum.