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:
Jul. 13, 2021

Filed:

Mar. 29, 2019
Applicant:

Irobot Corporation, Bedford, MA (US);

Inventors:

Shaan Patel, Belle Mead, NJ (US);

Brian Doughty, Framingham, MA (US);

Assignee:

iRobot Corporation, Bedford, MA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A01D 34/81 (2006.01); A01D 34/66 (2006.01); A01D 34/82 (2006.01); A01D 75/20 (2006.01); A01D 34/00 (2006.01); A01D 101/00 (2006.01);
U.S. Cl.
CPC ...
A01D 34/81 (2013.01); A01D 34/66 (2013.01); A01D 34/828 (2013.01); A01D 75/20 (2013.01); A01D 34/008 (2013.01); A01D 2101/00 (2013.01);
Abstract

An autonomous robot lawnmower includes a blade assembly including blades, a drive system to drive the blades through a cutting area having a cutting width, and a lateral blade guard including at least four bars spaced apart from one another by no less than 1 mm and no more than 15 mm. The at least four bars are positioned between the blades and a mowable area when the robot lawnmower is supported on the mowable area. The at least four bars extend across a portion of the cutting width and extending rearward and forward of the cutting area.


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