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:
Nov. 22, 2011
Filed:
Aug. 06, 2009
Wolfgang Layher, Waiblingen, DE;
Klaus-martin Uhl, Plochingen, DE;
Sebastian Hansen, Besigheim, DE;
Frank Berbig, Leipzig, DE;
Daniel Herbst, Karlsruhe, DE;
Wolfgang Layher, Waiblingen, DE;
Klaus-Martin Uhl, Plochingen, DE;
Sebastian Hansen, Besigheim, DE;
Frank Berbig, Leipzig, DE;
Daniel Herbst, Karlsruhe, DE;
Andreas Stihl AG & Co. KG, Waiblingen, DE;
Abstract
A water supplying device of a hand-held power tool has a water-conveying line and a valve arrangement arranged in the line for controlling the water flow through the line. The valve arrangement has a control valve with a valve body adjustable across a positioning travel. The opening cross-section of the control valve, as a function of the positioning travel, has a progressive characteristic line. An arrangement for actuating the water supplying device has an actuator that is separate from additional control elements of the power tool.