Portable liquid-recycling liquid-reusing cleaning system for hard surface flooring
US10959592B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 10, 2016 |
| Grant date | Mar 30, 2021 |
| Priority date | — |
| Expiry date | Mar 10, 2036 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L11/4088
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A cleaning system may have a trolley bucket assembly, a vacuum recovery tank, and a vacuum motor assembly. The trolley bucket assembly may have a bucket, a wheeled chassis, and a spigot fluidly connected to the bucket. A user may dispense and regulate the flow of cleaning liquid from the bucket through the spigot by manually adjusting the spigot. The tank may hold cleaning liquid and soil, and may have a bottom wall, a vacuum recovery inlet, and a transfer outlet through which cleaning liquid may be transferred to the bucket for reuse. The bottom wall may have an interior surface; and the transfer outlet may have an entry opening through which cleaning liquid from the tank enters the transfer outlet. The entry opening may be positioned above a portion of the interior surface, thereby inhibiting soil that settles on the interior surface portion from passing through the transfer outlet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.