US 11,717,120 B2
Robotic cleaner
Margaret Mathieu, East Greenwich, RI (US); and Justin West, Needham, MA (US)
Assigned to SharkNinja Operating LLC, Needham, MA (US)
Filed by SHARKNINJA OPERATING LLC, Needham, MA (US)
Filed on Dec. 9, 2020, as Appl. No. 17/116,528.
Claims priority of provisional application 62/945,684, filed on Dec. 9, 2019.
Prior Publication US 2021/0186282 A1, Jun. 24, 2021
Int. Cl. A47L 9/04 (2006.01); A47L 9/00 (2006.01)
CPC A47L 9/0477 (2013.01) [A47L 9/009 (2013.01); A47L 9/0494 (2013.01); A47L 2201/04 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A robotic cleaner comprising:
a housing having a front side and a back side opposite the front side;
an agitator extending from the front side of the housing such that at least a portion of the agitator is exposed, the exposed portion of the agitator defines a forward most portion of the robotic cleaner and is configured to contact an obstacle, the agitator is further configured to rotate about an agitator rotation axis, the agitator rotation axis extends substantially parallel to the front side, the agitator is further configured to move along a drop axis and a forward bump axis, movement along the drop axis actuates a drop sensor, actuation of the drop sensor is indicative of a presence of a cliff and movement along the forward bump axis actuates a bump sensor, actuation of the bump sensor is indicative of a presence of the obstacle; and
a spiral brush configured to rotate about a spiral brush rotation axis, the spiral brush rotation axis is configured to extend substantially parallel to a surface to be cleaned and extends transverse to the agitator rotation axis.