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:
Aug. 13, 2013
Filed:
Aug. 06, 2012
Roland Schick, Auenwald, DE;
Andreas Kral, Remshalden, DE;
Peter Knebel, Schorondorf, DE;
Uwe Weller, Allmersbach i. T., DE;
Nikolaus Kocher, Villingen-Schwenningen, DE;
Marcus Haug, Steinheim an der Murr, DE;
Roland Schick, Auenwald, DE;
Andreas Kral, Remshalden, DE;
Peter Knebel, Schorondorf, DE;
Uwe Weller, Allmersbach i. T., DE;
Nikolaus Kocher, Villingen-Schwenningen, DE;
Marcus Haug, Steinheim an der Murr, DE;
Alfred Kärcher GmbH & Co. KG, Winnenden, DE;
Abstract
A road sweeper is provided with a rotatingly drivable sweeping brush, a sweepings container, a suction blower in flow communication with the sweeping brush for taking in dust-containing air, and at least one filter for separating dust from the air drawn in, wherein the filter can be acted upon on the clean side with external air stored in a pressure container and subject to pressure, via at least one external air valve for cleaning. In order for the filter to be cleaned off with as small an amount of external air as possible, the pressure container can have a pressure container wall located opposite the clean side of the at least one filter, the at least one external air valve being arranged on the wall, wherein a section of a suction conduit extends between the pressure container wall and the clean side of the filter.