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. 18, 2004
Filed:
Sep. 17, 2001
Klaus Langhans, Winnenden, DE;
Johann Trumpf, Winnenden, DE;
Andreas Stihl AG & Co., Waiblingen, DE;
Abstract
The invention is directed to a guide tube assembly for a portable handheld work apparatus with a drive motor ( ) mounted at one end ( ) of the guide tube ( ). The drive motor ( ) is connected to a work tool ( ) mounted at one end ( ) of the guide tube ( ) via a drive shaft ( ) mounted in the guide tube ( ). A reinforcing sleeve ( ) is axially inserted into the work tool end ( ) of the guide tube ( ) in order to better introduce engine loads at a flange ( ) of the work tool ( ) into the guide tube ( ). The reinforcing sleeve ( ) projects axially along a part length (L′) of the guide tube ( ) from the flange ( ) into the guide tube ( ).