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. 05, 2000
Filed:
Dec. 02, 1998
Klaus-Martin Uhl, Baltmannsweiler, DE;
Joachim Hoffmann, Plochingen, DE;
Berthold Schell, Backnang, DE;
Andreas Stihl AG & Co., , DE;
Abstract
A cutter head assembly for a motor chain saw has a cutter head housing and a drive shaft mounted in and projecting from the cutter head housing. A drive pinion is mounted on the portion of the drive shaft projecting from the cutter head housing. A guide bar having a first end positioned adjacent to the drive pinion is provided. A saw chain is driven by the drive pinion and circulates on the guide bar. A cover covering the drive pinion and resting at least in an area of outgoing deflection of the saw chain at a housing wall of the cutter head housing defines a cuttings chamber open toward the guide bar. The first end of the guide bar is clamped between the housing wall of the cutter head housing end the cover. The cover has a cuttings ejection opening opposite the housing wall in the vicinity of the area of outgoing deflection. The cuttings ejection opening has a rim extending in a circulating direction of the saw chain and a ramp projecting from a first portion of the rim into the cutting chamber.