Self-Rinsing Roller Scrub Brush with Dirty-Water Tank

The problem

Scrubbing with a brush means juggling water. You wet the surface, scrub, rinse the dirty brush, scrub again, then wipe up what splashed and ran. Spray-brushes on a hose keep the bristles wet but waste water and leave puddles. The dirt you lift off the surface simply moves to the bristles and back again.

The solution

The patent puts a small rinse station inside the brush itself, so the water cleans the bristles, not the surface:

1. A roller brush (2) turns in a long groove (101) in the side of the housing (1); only part of it sticks out to touch the surface.
2. Inside the groove, two water jets (501, 502) fed by a clean-water pump (103) from a clean-water chamber (102) wet the bristles as they pass.
3. A triangular scraper bar (401) with ribs (402) bends the bristles and rubs the wet dirt into clumps.
4. As each bristle slips past the bar it springs back and flicks dirt and water onto a curved guide wall (3).
5. The water runs down into a sump (6) at the bottom, and a second pump (105) moves it into a dirty-water chamber (104).

The patent describes one turn of the roller as clean - rinse - flick dry - collect, so the surface is wiped once with clean bristles and very little water.

Who it is for

• Cleaning-tool and small-appliance brands looking for a cordless scrubber with a clear “no drips” story.
• Car-care and detailing brands - a handheld brush that does not leave dirty water on paint and trim.
• Housewares retailers and private label programs in the growing powered-scrubber segment.

How it works

The main parts

Using it

1. Fill the clean-water chamber.
2. Press the roller against the surface and switch on - the motor and both pumps start.
3. Wipe across the surface once. The bristles pick up the dust, are rinsed inside the body and come back clean.
4. Empty the dirty-water chamber when finished.

Inside one turn of the roller

1. Bristles touching the surface pick up dust.
2. Inside the groove the jets wet them.
3. The ribbed bar scrubs and bends them.
4. Released, they flick the dirty water onto the curved wall.
5. The water drains to the sump and is pumped to the dirty-water chamber.

Applications

Tiles, sinks and bathroom surfaces

Scrubbing grout and fixtures without dirty water running down the wall.

Car interiors and wheels

Dash panels, mats and rims where splashing should be avoided.

Furniture and outdoor items

Plastic garden furniture, coolers and sports gear.

Windows and frames

Frames and sills, where a sponge leaves streaks and drips.

Where it is less suitable

• Large floors - a floor scrubber with a bigger roller and tank covers more area.
• Delicate surfaces - fine wood finishes or soft fabrics may need softer bristles or no water at all.