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.

Date of Patent:
Dec. 04, 2007

Filed:

Dec. 17, 2004
Applicant:

Günter Mayer, Untereisesheim, DE;

Inventor:

Günter Mayer, Untereisesheim, DE;

Assignee:

Andreas Stihl AG & Co. KG, Waiblingen, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A01B 33/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A rotatably driveable work tool () of a motor-driven work apparatus has, at a front end (), an end plate () lying perpendicularly to a rotational axis (). The end plate () has an outer diameter (D) which is less than a flight circular diameter (D) of the work tool (). The end plate () is configured as a roll-up protective ring () which extends in a radial direction () from an inner diameter (D) to the outer diameter (D). The roll-up protective ring has an axially-extending component from the work tool () outwardly.


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