Patent · US Expired

Cutting blade for a trimmer

US6640449B1 · kind B1 · utility

12Cited by

12References

10Claims

0Family size

Assignee

Andreas Stihl AG & Co. KG · DE

Inventors

Joachim Hoffmann · Esslingen am Neckar, DE
Thomas Schweigert · Weingarten, DE
Andreas Schneider · Leonberg, DE

Key dates

Filing date	Nov 5, 2001
Grant date	Nov 4, 2003
Priority date	—
Expiry date	Nov 5, 2021

Classification

Technology area (CPC A)Human Necessities
CPC primaryA01D34/73
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

The present invention relates to a cutting blade for a trimmer. The cutting blade (1) comprises a base body (14) having a central portion (15) as well as end portions (16) adjoining the central portion. Cutting edges (26) are formed on the longitudinal edges (23,24) of the end portions (16), whereby a central fastening opening (21) is provided in the central portion (15) for mounting the cutting blade (11) on a drive shaft. In order to obtain a multiply cutting blade for chopping material, it is provided that the end portions (16) that carry the cutting edges (26) be angled off in the same direction (18) out of the plane (17) of the central portion (15).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.