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. 27, 2004
Filed:
Mar. 01, 2002
Christoph Würsch, Werdenberg, CH;
Roland Schaer, Grabs, CH;
Hilti Aktiengesellschaft, Schaan, LI;
Abstract
A hand-held rotary-percussion power tool includes an electrical drive ( ) for generating a torque transmittable to a boring tool used with the power tool for forming blind bores, a hammer mechanism ( ) for applying impacts to the boring tool, control device ( ) for controlling operation of at least one of the electrical drive ( ) and the hammer mechanism ( ), and an electronic depth stop ( ). The depth stop include a sensor ( ) for contactless, distance measuring of a depth of a blind bore, and a computation unit ( ) for generating a signal indicating that a sensed measurement value (M) corresponds to a set value of the depth of the blind bore, and connected with the control device ( ).