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. 16, 2006
Filed:
Feb. 24, 2003
Erwin Manschitz, Germering, DE;
Helmut Burger, Moorenweis, DE;
Josef Anzinger, München, DE;
Manfred Ege, Huglfing, DE;
Mathias Doberenz, Kaufering, DE;
Erwin Manschitz, Germering, DE;
Helmut Burger, Moorenweis, DE;
Josef Anzinger, München, DE;
Manfred Ege, Huglfing, DE;
Mathias Doberenz, Kaufering, DE;
Hilti Aktiengesellschaft, Schaan, LI;
Abstract
A hand-held electrical combination hammer drill capable of being used both as a drilling hammer and as a chisel hammer, and including an actuation member () for actuating an electrical on-off switch of the hammer drill and located on the tool handle switching elements () for switching between drilling and chiseling operations, stop elements () actuated by the switching means () for retaining the actuation member () in a on-position of the on-off switch upon selection of the chiseling operation, and a stop switch () having, upon selection of the chiseling operation, a first position in which the stop switch provides for securing the actuation member () in its on-position with the stop elements (), and a second position in which the stop elements occupies a non-operative position in which the actuation member, upon being released, automatically moves into its off-position under an action of a biasing force.