Air exhaust system for a cleaning machine
US7356875B2 · kind B2 · utility
8Cited by
16References
31Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 11, 2003 |
| Grant date | Apr 15, 2008 |
| Priority date | — |
| Expiry date | Aug 13, 2024 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L11/4097
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A cleaning machine for cleaning a surface in which cleaning solution is dispensed to the surface and substantially extracted along with the dirt on the surface in a continuous operation is provided. The cleaning machine includes an airflow source that produces an airflow directed out of an outlet. A duct cover covers the outlet. The duct cover includes at least one opening that is sized and oriented to distribute the air evenly across the outlet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.