US 11,839,346 B2
Robotic cleaner with dual cleaning rollers
Steven Paul Carter, London (GB); Adam Udy, Sutton (GB); Catriona A Sutter, Brookline, MA (US); Christopher Pinches, Surrey (GB); David S. Clare, London (GB); Andre David Brown, Natick, MA (US); John Freese, Chestnut Hill, MA (US); Patrick Cleary, Allston, MA (US); Alexander J. Calvino, Needham, MA (US); Lee Cottrell, Newton, MA (US); Daniel Meyer, Boston, MA (US); Daniel John Innes, West Roxbury, MA (US); David Jalbert, Needham, MA (US); Jason B. Thorne, Wellesley Hills, MA (US); Peter Hutchinson, Suzhou (CN); Gordon Howes, Suzhou (CN); Wenxiu Gao, Suzhou (CN); David Wu, Needham, MA (US); David W. Poirier, Lexington, MA (US); and Daniel R. Der Marderosian, Westwood, MA (US)
Assigned to SharkNinja Operating LLC, Needham, MA (US)
Filed by SHARKNINJA OPERATING LLC, Needham, MA (US)
Filed on Dec. 20, 2021, as Appl. No. 17/556,992.
Application 17/556,992 is a continuation of application No. 15/987,589, filed on May 23, 2018, granted, now 11,202,542.
Claims priority of provisional application 62/511,099, filed on May 25, 2017.
Prior Publication US 2022/0110495 A1, Apr. 14, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. A47L 9/06 (2006.01); A47L 5/30 (2006.01); A47L 9/04 (2006.01); A47L 7/00 (2006.01)
CPC A47L 9/0613 (2013.01) [A47L 5/30 (2013.01); A47L 9/0477 (2013.01); A47L 9/0488 (2013.01); A47L 7/0066 (2013.01); A47L 2201/00 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A robotic cleaner comprising:
a housing with an opening on an underside of the housing;
a debris collector located in the housing for receiving debris;
a brush roll rotatably mounted to the housing such that a portion of the brush roll extends below the underside;
a leading roller rotatably mounted in front of the brush roll; and
a combing unit disposed between the brush roll or the leading roller, wherein the combing unit includes at least a first series of spaced combing protrusions extending partially into the leading roller and a second series of spaced combing protrusions extending partially into the brush roll;
wherein the first series of spaced combing protrusions engages the leading roller at a location below the center of rotation of the leading roller and wherein the second series of spaced combing protrusion engages the brush roll above a center of rotation of the brush roll.