IP Library Granted Patent US 11,589,724
Granted Patent B2
US 11,589,724 · App. 17/060,818 · Granted Feb 28, 2023

Cleaning pads for autonomous floor cleaning robots

Inventors: John Reimels (Scituate, MA); Marcus R. Williams (Newton, MA); Adam Goss (Lincon, MA); Isaac Fowler (Cambridge, MA); Lucile Driscoll (Boston, MA)
Assignee: iRobot Corporation
A47L11/4011A47L11/28A47L11/4036A47L11/4066A47L11/4088A47L2201/04A47L2201/06
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Quick Facts
Patent No.
US 11,589,724
App. No.
17/060,818
Granted
Feb 28, 2023
Kind
B2
Abstract

An autonomous floor cleaning robot includes a robot body, a drive supporting the robot body to maneuver the robot across a floor surface, a pad holder attached to an underside of the robot body and configured to receive a removable cleaning pad, and a pad sensor configured to sense a pad type identifier on a central region of the cleaning pad. The pad type identifier includes a marker on the central region of the cleaning pad. The cleaning pad has a mounting card affixed thereto, and the pad type identifier includes an array of apertures that expose selected portions of the marker.

Claims (30)

1. A cleaning pad assembly securable to a cleaning robot, the cleaning pad assembly comprising:

a cleaning pad connectable to a pad holder mountable to an underside of a robot body of the cleaning robot, the cleaning pad including:

a pad type identifier including a marker on the cleaning pad; and

a mounting card connected to the cleaning pad and securable to the pad holder to secure the cleaning pad and the mounting card to the cleaning robot, the mounting card defining a set of apertures that expose selected portions of the marker, the mounting card including tabs insertable into side rails of the pad holder to retain the mounting card.

2. The cleaning pad assembly of claim 1 , wherein the pad type identifier and the marker are located on a central portion of the cleaning pad.

3. The cleaning pad assembly of claim 2 , wherein a length of the mounting card is at least 8 cm and a length of the cleaning pad is at least 20 cm.

4. The cleaning pad assembly of claim 3 , wherein a width of the mounting card is at least 7 cm and a width of the cleaning pad is of at least 8 cm.

5. The cleaning pad assembly of claim 1 , wherein the mounting card includes cutouts configured to receive protrusions of the pad holder.

6. The cleaning pad assembly of claim 5 , wherein the cutouts are located on a side of the mounting card such that the cutouts are configured to receive the protrusions to secure the mounting card to the pad holder in a single orientation.

7. The cleaning pad assembly of claim 6 , wherein the tabs are configured to retain the mounting card together with the protrusions and the cutouts in a single orientation.

8. The cleaning pad assembly of claim 7 , wherein the tabs, marker, and apertures are located such that the marker is positioned adjacent a pad sensor of the pad holder when the mounting card is secured to the pad holder.

9. The cleaning pad assembly of claim 1 , wherein the pad type identifier is configured to indicate a type of pad of the cleaning pad to a pad sensor of the cleaning robot.

10. A cleaning pad assembly securable to a cleaning device, the cleaning pad assembly comprising:

a cleaning pad having a marker located on a central region of the cleaning pad; and

a mounting card connected to the cleaning pad, the mounting card including an array of identification elements configured to expose portions of the marker and cover other portions of the marker to indicate a cleaning pad type, the mounting card including:

a pair of tabs insertable into side rails of a pad holder of the cleaning device; and

a pair of mounting apertures configured to receive a pair of protrusions of the pad holder, respectively, at least partially therein.

11. The cleaning pad assembly of claim 10 , wherein the identification elements include an array of apertures that expose the portions of the marker.

12. The cleaning pad assembly of claim 11 , wherein the mounting card includes eight identification elements.

13. The cleaning pad assembly of claim 10 , wherein the mounting card includes mounting cutouts engageable with protrusions of a pad holder of an autonomous floor cleaning robot.

14. The cleaning pad assembly of claim 13 , wherein the mounting card cutouts are configured to receive the protrusions in a single orientation of the mounting card with respect to the pad holder.

15. A cleaning pad assembly securable to a cleaning robot, the cleaning pad assembly comprising:

a cleaning pad connectable to a pad holder mountable to an underside of a robot body of the cleaning robot, the cleaning pad including:

a pad type identifier including a marker on the cleaning pad; and

a mounting card connected to the cleaning pad and securable to the pad holder to secure the cleaning pad and the mounting card to the cleaning robot, the mounting card defining an array of apertures that expose selected portions of the marker, the mounting card including a pair of tabs insertable into side rails of the pad holder to retain the mounting card.

16. The cleaning pad assembly of claim 15 , wherein the pad holder is configured to receive a cleaning pad having a mounting card such that a ratio of a length of the mounting card to the length of the pad is at least 2.0.

17. The cleaning pad assembly of claim 16 , wherein the ratio of a length of the mounting card to the length of the pad is at least 2.2.

18. The cleaning pad assembly of claim 17 , wherein the mounting card defines a first length and the mounting card includes mounting tab extensions defining a second length of the mounting card that is longer than first length.

19. The cleaning pad assembly of claim 17 , wherein a width of the mounting card is at least 7 cm and a width of the cleaning pad is of at least 8 cm.

20. The cleaning pad assembly of claim 15 , wherein the marker is colored ink or dye.

Assignments (5)
NOTICE OF ASSIGNMENT OF SECURITY INTEREST IN INTELLECTUAL PROPERTY Recorded Nov 25, 2025
From: TCG SENIOR FUNDING L.L.C., AS COLLATERAL AGENT
To: SANTRUM HONG KONG CO., LIMITED, AS SUCCESSOR COLLATERAL AGENT
Reel/Frame 073707/0516 →
SECURITY INTEREST Recorded Aug 9, 2023
From: IROBOT CORPORATION
To: TCG SENIOR FUNDING L.L.C., AS COLLATERAL AGENT
Reel/Frame 064532/0856 →
RELEASE OF SECURITY INTEREST Recorded Jul 31, 2023
From: BANK OF AMERICA, N.A., AS ADMINISTRATIVE AGENT
To: IROBOT CORPORATION
Reel/Frame 064430/0001 →
SECURITY INTEREST Recorded Nov 3, 2022
From: IROBOT CORPORATION
To: BANK OF AMERICA, N.A., AS ADMINISTRATIVE AGENT
Reel/Frame 061878/0097 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 6, 2022
From: REIMELS, JOHN; WILLIAMS, MARCUS R.; GOSS, ADAM; FOWLER, ISAAC; DRISCOLL, LUCILE
To: IROBOT CORPORATION
Reel/Frame 059519/0338 →
Continuity (2)
Continuation 16205611 · Nov 30, 2018
Related Publication 20210015331A1 · Jan 21, 2021