Bare floor vacuum cleaner

• US 9,706,888 B2
• Filed: 06/05/2015
• Issued: 07/18/2017
• Est. Priority Date: 11/05/2010
• Status: Active Grant

• Current Assignee: Bissell Inc.
• Original Assignee: Bissell Homecare, Inc. (Bissell Inc.)
• Inventors: Krebs, Alan J.
• Primary Examiner(s): REDDING, DAVID A
• Application Number:
  US14/732,185
• Publication Number:
  US 20150265118A1
• Time in Patent Office: 774 Days
• Field of Search: 15384, 15385, 15388
• CPC Class Codes: A46B 13/001 Cylindrical or annular brush bodies
• CPC Class Codes: A47L 11/22 Floor-sweeping machines, hand-driven
• CPC Class Codes: A47L 5/225 Convertible suction cleaners, i.e. convertible between different types thereof, e.g. from upright suction cleaners to sledge-type suction cleaners
• CPC Class Codes: A47L 5/30 with driven dust-loosening tools, e.g. rotating brushes
• CPC Class Codes: A47L 5/362 of the horizontal type, e.g. canister or sledge type
• CPC Class Codes: A47L 7/0014 with additional means or devices between nozzle and casing
• CPC Class Codes: A47L 9/009 Carrying-vehicles; Arrangements of trollies or wheels; Means for avoiding mechanical obstacles
• CPC Class Codes: A47L 9/0411 driven by electric motor
• CPC Class Codes: A47L 9/0422 driven by the rotation of the supporting wheels on which the nozzle travels over the floor
• CPC Class Codes: A47L 9/0433 Toothed gearings
• CPC Class Codes: A47L 9/0444 for conveying motion by endless flexible members, e.g. belts
• CPC Class Codes: A47L 9/0472 Discs
• CPC Class Codes: A47L 9/0488 Combinations or arrangements of several tools, e.g. edge cleaning tools
• CPC Class Codes: A47L 9/0686 Nozzles with cleaning cloths, e.g. using disposal fabrics for covering the nozzle
• CPC Class Codes: A47L 9/104 Means for intercepting small objects

Abstract

A vacuum cleaner having a housing and a suction inlet thereon, the cleaner comprising a suction source in fluid communication with the suction inlet to produce a working airflow therethrough and a dirt container in fluid communication with the suction inlet and suction source. The housing further comprises a body defined by a central portion and a pair of extension arms that extend laterally outwardly from the central portion, wherein each extension comprises a mount, which receives a rotatable agitator thereon. A drive assembly is configured to counter-rotate each agitator with respect to the other agitator, and wherein the suction inlet is positioned on the housing rearward of, and between, each of the axes of rotation of each agitator. The counter-rotating agitators are operable to cooperate with the suction source to direct dust and debris outside the periphery of the housing along a converging debris path, towards the suction inlet.

Claims

1. A vacuum cleaner having a housing and a suction inlet thereon, the vacuum cleaner comprising;

a suction source associated with the housing, in fluid communication with the suction inlet to produce a working airflow therethrough;

a dirt container in fluid communication with the suction inlet and suction source;

wherein the housing further comprises;

a V-shaped body defined by a central portion having an apex and a pair of extension arms that extend laterally outwardly from the apex of the central portion, wherein each extension arm comprises a mount, which receives a rotatable agitator thereon, the agitator on each extension arm having an axis of rotation; and

a drive assembly operably interconnected with each of the agitators provided on the pair of extension arms, wherein the drive assembly is configured to counter-rotate each agitator with respect to the other agitator;

wherein the suction inlet is positioned beneath the apex of the central portion, rearward of and between the axes of rotation of the agitators and wherein an aperture of the suction inlet is narrower than a width of the housing;

whereby the counter-rotating agitators are operable to cooperate with the suction source to direct dust and debris outside a periphery of the housing along a converging debris path, towards the suction inlet.

2. The housing of claim 1 wherein the agitator comprises a hub comprising at least one retainer that is adapted to receive at least one cleaning element, the at least one cleaning element comprising a flexible pad, brushes, bristles, a micro-fiber pad, a disposable non-woven fibrous dusting sheets, a synthetic chamois pad, a natural chamois pad, felt, yarn, cloth rags or any combination thereof.

3. The housing of claim 2 wherein the hub comprises resilient bristle tufts disposed at intervals around a perimeter of the hub and extending substantially radially outwardly therefrom, and the at least one cleaning element comprises radial strips separated by radial slits, the radial strips being configured to intermingle in the spaces formed between the spaced bristle tufts on the hub when the cleaning element is mounted to the hub.

4. The housing of claim 1 wherein each agitator has a peripheral edge and each of the pair of extension arms has a distal portion thereon, and wherein the peripheral edge of each agitator extends beyond the distal portion of the corresponding one of the pair of extension arms for interaction with a surface to be cleaned beyond the distal portion of each of the arms.

5. The housing of claim 1 wherein the drive assembly comprises a drive belt or a motor operably interconnected to each of the agitators on the pair of arms to impart rotation to each of the agitators.

6. The housing of claim 1 wherein the drive assembly comprises a gear associated with at least one wheel on the housing and operably interconnected with the agitators on the pair of arms on the housing, wherein rotation of the at least one wheel imparts movement to the agitators on the pair of extension arms on the housing.