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US 2014/0196247 A1Published application
Vacuum cleaner
AssigneeBISSELL Homecare, Inc.
InventorGary A. Kasper
Life of this patent
Estimating the term…
Abstract
A vacuum cleaner includes a housing having a suction nozzle, a source of suction in fluid communication with the suction nozzle for generating a working air stream through the housing, an agitator provided within the housing, and a roller provided in front of the agitator which rolls over larger debris while creating a seal for picking up smaller debris.
Claims19
A vacuum cleaner for removing debris from a surface to be cleaned, comprising:
- a housing comprising a suction nozzle defining a suction chamber having an inlet opening and an outlet opening;
- an agitator provided in the suction chamber;
- a passageway at a forward portion of the housing and in fluid communication with the suction chamber;
- a suction source fluidly connected to the suction nozzle for generating a working air stream through the suction nozzle;
- and
- a roller mounted to the housing in front of the agitator for rotation about a rotational axis and having multiple radially-spaced sealing elements defining debris chambers between adjacent sealing elements;
- wherein, upon the rotation of the roller about the rotational axis, the sealing elements sequentially form a temporary seal between the passageway and the surface to be cleaned such that a corresponding debris chamber is fluidly coupled to the suction chamber and debris in the corresponding debris chamber is ingested through the passageway.
4 more elements
Dependencies are inferred from the claim text.