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.:
Date of Patent:
Aug. 11, 2009
Filed:
Apr. 05, 2004
Joseph L. Jones, Acton, MA (US);
Newton E. Mack, Somerville, MA (US);
David M. Nugent, Newport, RI (US);
Paul E. Sandin, Randolph, MA (US);
Joseph L. Jones, Acton, MA (US);
Newton E. Mack, Somerville, MA (US);
David M. Nugent, Newport, RI (US);
Paul E. Sandin, Randolph, MA (US);
iRobot Corporation, Bedford, MA (US);
Abstract
An autonomous floor-cleaning robot comprises a self-adjusting cleaning head subsystem that includes a dual-stage brush assembly having counter-rotating, asymmetric brushes and an adjacent, but independent, vacuum assembly such that the cleaning capability and efficiency of the self-adjustable cleaning head subsystem is optimized while concomitantly minimizing the power requirements thereof. The autonomous floor-cleaning robot further includes a side brush assembly for directing particulates outside the envelope of the robot into the self-adjusting cleaning head subsystem.