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:
Sep. 23, 2003
Filed:
Jul. 30, 2001
Klaus-Martin Uhl, Baltmannsweiler, DE;
Florian Hoche, Stuttgart, DE;
Andreas Stihl AG & Co., Waiblingen, DE;
Abstract
The invention relates to an operating substance tank ( ) which is especially for a portable handheld work apparatus ( ). The tank ( ) has a fill opening ( ) and a suction connection ( ). The tank is configured from a first housing part ( ) and a second housing part ( ) connected to the first housing part ( ). In this way, the tank is built up in a simple manner and is operationally reliable. A valve ( ) is formed in the interior of the tank ( ) so that a valve member ( ) is held by the first housing part ( ) and the valve member ( ) comes into seal-tight contact on an opening ( ) of a through bore ( ) on the second housing part ( ). The valve ( ) functions especially as an aerating valve for the tank ( ).