Patent · US Active

Cutter guard for a lawn mower

US9021777B2 · kind B2 · utility

19Cited by

6References

20Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

William Johnson · Sparta, US
Richard Baxter · Moline, US
Lewis Marshall · Stowmarket, GB

Key dates

Filing date	Apr 22, 2013
Grant date	May 5, 2015
Priority date	—
Expiry date	Jul 30, 2033

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T90/14
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

A cutter guard for a rotating blade of a lawn mower, particularly for a robotic, self-guided or autonomous lawn mower forms a cutting bowl in which the blade is mounted for rotation about a generally vertical axis. The guard comprises a generally planar guard section surrounded by an arcuate section, transverse edges of which define an opening in the cutter guard, which in operation is pointed to the front of the lawn mower, to allow uncut grass to be accessed by the cutting blades. The arcuate section comprises a plurality of apertures.

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