Sharkninja Operating LLC

David W Poirier

Jason Boyd Thorne

Andre David Brown

Adam Udy

Daniel John Innes

David B Jalbert

Lee M Cottrell

David Stephen Clare

Alexander J Calvino

Peter Hutchinson

Patrick Cleary

Gordon Howes

John B Freese

Steven Paul Carter

Daniel Meyer

Christopher P Pinches

David Wu

Daniel R Der Marderosian

Wenxiu Gao

Catriona A Sutter

Nancy Gao Wenxiu

Christoper Pinches

Steven P Carter

A robotic cleaner includes a housing, a suction conduit with an opening, and a leading roller mounted in front of a brush roll. An inter-roller air passageway may be defined between the leading roller and the brush roll wherein the lower portion of the leading roller is exposed to a flow path to the suction conduit and an upper portion of the leading roller is outside of the flow path. Optionally, a combing unit includes a plurality of combing protrusions extending into the leading roller and having leading edges not aligned with a center of the leading roller. Optionally, a sealing strip is located along a rear side of the opening and along a portion of left and right sides of the opening. The underside may define side edge vacuum passageways extending from the sides of the housing partially between the leading roller and the sealing strip towards the opening.

Robotic cleaner with dual cleaning rollers

A surface cleaning head with dual rotating agitators (e.g., a leading roller and a brush roll) may be used to facilitate capturing of debris in the air flow into a suction conduit on the underside of the surface cleaning head. The leading roller is generally positioned adjacent to and in advance of the opening of the suction conduit. The rotating brush roll may be located in the suction conduit with the leading roller located in front of and spaced from the brush roll, forming an inter-roller air passageway therebetween. The leading roller may provide a softer cleaning element than the brush roll and may also have an outside diameter that is less than the outside diameter of the brush roll. The surface cleaning head may also include debriding protrusions contacting the leading roller and/or a leading bumper that extends in front of the leading roller.

Surface cleaning head with dual rotating agitators

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Lexington, MA, United States of America

David W Poirier