The Hoover Comapny

Other

Techtronic Floor Care Technology Limited

Healthy Gain Investments Limited

David A Bradshaw

Adam C Sclafani

Jeffery A Morgan

Kevin L Thomas

Vincent L Weber

Charles A Lang

Douglas E Gerber

Robert S Wilson

Siu Wai Hui

Wing Leung Ng

Evan A Gordon

Edgar A Maurer

Michael A Durbin

Aaron P Tondra

William H Theiss, Jr

Donald A Coates

Timothy T Hertrick

Robert W Bauman

Charles R Morrow

Wilbur J Kellum

Nick M Bosyj

Gregg A McAllise

David G Mueller

David J Boles

Nick M Bosyi

Kevin S Waltz

Fred S Sindlinger

Rodney J Svik

Joseph F Oles

A floor cleaning device including a base assembly for movement along a surface, a handle, a nozzle, a nozzle lifting mechanism, a brush, a brush lifting mechanism, a recovery tank, and a liquid distribution system. The nozzle lifting mechanism moving the nozzle relative to the base assembly and the surface and the brush lifting mechanism moving the brush relative to the base assembly and the surface.

Wet/dry floor cleaning unit

A floor cleaning device comprises a base portion for movement along a surface and a handle portion pivotally connected to the base. The base portion further includes a suction nozzle and a brush assembly for agitating the surface, wherein the brush assembly and the nozzle assembly are in a first position raised off of the surface for vacuuming the surface, and the nozzle assembly is lowered to a second position contacting the surface for collecting and picking up liquid and dirt from the surface. A method of cleaning a surface by first dry vacuuming the surface using a cleaning unit in which the nozzle assembly is raised to pick up particles and then wet vacuuming the floor with the nozzle assembly lowered to collect and pick up dirt from the floor mixed with cleaning solution distributed on the floor.

Wet/dry floor cleaning unit and method of cleaning

A cleaner for cleaning a surface comprises a floor-engaging portion for moving along the surface. A magnet and a hall effect sensor located in the cleaner handle generates a control signal. The control signal is provided to a control circuit which controls one or more operational features of the cleaner. One such operational features includes at least one pump for mixing and distributing cleaning solution to the surface. In an alternate embodiment, the control circuit controls an electric motor for propelling the cleaner over the surface.

Control arrangement for a cleaning appliance

A cleaner for cleaning a surface comprises a floor-engaging portion for moving along the surface. A source supplies a liquid to a distributor, which distributes the liquid from the source on the surface wherein an activating device is operatively connected to the source to activate the source to supply liquid to the distributor to distribute liquid on the surface in response to a force moving the floor engaging portion in a first direction.

Apparatus and method for cleaning a surface

A dirt collecting system for a vacuum cleaner includes a dirt cup formed with a coarse particle separation chamber and a fine particle separation chamber separated by an apertured wall. Coarse dirt particles directed into the coarse particle separation chamber are prevented from entering the fine particle separation chamber by the apertured wall. The apertured wall is removable from the dirt cup and is cleaned upon removal by a cleaning element. A fine particle filter is located in the fine particle separation chamber for filtering fine particles. The fine particle filter is cleaned by rotating a knob located in the dirt cup lid so that the pleats of the fine particle filter is brushed past a wiper element.

Vacuum cleaner dirt collecting system with filter cleaning devices

Filter cartridge top

The present invention teaches a combined air/liquid separator and recovery tank for use on a hot water carpet extractor. The combined tank and separator are particularly suited for an upright style of carpet extractor and features easy removal for emptying the recovery tank at a site remote from the extractor.

Liquid recovery tank for a carpet extractor

The invention described provides a nozzle that includes a pivoted wand to permit relative movement in a vertical plane between the wand and nozzle during manipulation by the operator. The center for the pivot for the wand is located at floor level. This permits friction generated forces that are imparted to the nozzle to be imposed so as to prevent unbalanced moments being generated tending to tip the nozzle during its movement over a floor or carpeting.

Nozzle with pivoted wand

Growing community of inventors

Canton, OH, United States of America

David A Bradshaw