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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.:

US 8904651 B1

PDFFull Text
Date of Patent:
Dec. 09, 2014

Filed:

Aug. 04, 2011

Handheld work apparatus

Applicant:

Georg Heinzelmann, Backnang, DE;

Inventor:

Georg Heinzelmann, Backnang, DE;

Assignee:

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

Attorney:

Walter Ottesen P.A.

Primary Examiner:

Ghassem Alie

Assistant Examiner:

Bharat C Patel

Int. Cl.
CPC ...
B23D 57/02 (2006.01); B27B 17/00 (2006.01); F01M 1/02 (2006.01); F01M 11/02 (2006.01); F01M 9/10 (2006.01); B27B 17/12 (2006.01);
U.S. Cl.
CPC ...
B27B 17/12 (2013.01);
Abstract

A portable handheld work apparatus includes a drive motor () which drives a work tool via a drive shaft (). The work apparatus further includes a brake drum (), which is connected to the drive shaft so as to rotate therewith, and an oil pump () which is driven by the drive shaft () via a drive worm gear (). A simple configuration and a long service life are obtained when the drive worm gear () is formed on a pot-shaped component (). The edge () of the pot-shaped component () is connected to the brake drum so as to rotate therewith. The pot-shaped component is self supported in the region of its base () on the drive shaft ().

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Heinzelmann, Georg. (2014). Handheld work apparatus (U.S. Patent No. 8904651). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8904651

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