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:
Feb. 13, 2007
Filed:
May. 14, 2004
Manfred Droste, Limburg-Offheim, DE;
Manfred Droste, Limburg-Offheim, DE;
Black & Decker Inc., Newark, DE (US);
Abstract
An electrically powered rotary hammer includes a first switchable gear arrangement for actuating the hammering mechanism and a second switchable gear arrangement for actuating the rotary drive mechanism. The hammer includes a mode change knob, a linkage support, a first linkage slideably supported in the linkage support between the mode change knob and the first switchable gear arrangement and a second linkage slideably supported in the linkage support between the mode change knob and the second switchable gear arrangement. The mode change knob moves the linkages between three positions, a drilling only mode position in which the second switchable gear arrangement only is in its actuating position, a hammer drilling mode in which both the first and second gear arrangements are in their actuating positions, and a hammering only mode position in which the first switchable gear arrangement only is in its actuating position.