Head assembly for a vacuum cleaning apparatus

Brushing – scrubbing – and general cleaning – Machines – With air blast or suction

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Details

15323, 15416, A47L 530

Patent

active

051897571

ABSTRACT:
A cleaning head assembly for a vacuum cleaning apparatus of the wet, dry and wet/dry types includes a rotatably driven brush carried within and laterally spanning the head assembly. A first vacuum chamber extends through the cleaning head assembly from a first inlet opening adjacent to a surface to be cleaned and laterally spanning the head assembly on one side of the brush, to a first exhaust port. A second vacuum chamber extends through the cleaning head assembly from a second inlet opening adjacent to the surface to be cleaned and laterally spanning the head assembly on a second, opposite, side of the brush relative to the first inlet opening, to a second exhaust port. A slidable gate valve selectively couples one end of a flexible hose to one of the exhaust ports for selective vacuuming of debris through either the first or the second inlet openings. The brush is automatically rotated in a direction which assists in propulsion of the vacuum cleaning apparatus across the surface to be cleaned so that the inlet opening through which debris is being sucked up, follows the brush. As the slidable gate valve is repositioned from one exhaust port to another, the direction of brush rotation is automatically changed.

REFERENCES:
patent: 1470894 (1923-10-01), Throop
patent: 1726592 (1929-09-01), Spanel
patent: 2348861 (1944-05-01), Smellie
patent: 4179768 (1979-12-01), Sawyer
patent: 4809397 (1989-03-01), Jacobs et al.
patent: 4951346 (1990-08-01), Salmon
patent: 4976003 (1990-12-01), Williams
patent: 5008973 (1991-04-01), Worwag
patent: 5012549 (1991-05-01), Williams et al.
patent: 5054158 (1991-10-01), Williams et al.

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