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Article: Patent No. 7,578,358 Issued on Aug. 25, Assigned to AEG Electric Tools for Hand Held Hammer Drill (German Inventors)
- Article from:
- US Fed News Service, Including US State News
- Article date:
- August 27, 2009
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ALEXANDRIA, Va., Aug. 27 -- Hans Klopfer and Stefan Pohl, both of Waiblingen, Germany, Achim Hess of Korb, Germany, and Markus Worner of Winnenden, Germany, have developed a hand-held hammer drill. The inventors were issued U.S. Patent No. 7,578,358 on Aug. 25.
The patent has been assigned to AEG Electric Tools GmbH, Winnenden.
According to the abstract released by the U.S. Patent & Trademark Office: "A hand-held hammer drill has a housing, a tool spindle rotatingly driving a tool, a hammer action percussion-driving the tool, a swash plate drive driving the hammer action, and a countershaft driving as needed the tool ...