Sprayless surface cleaning wand
US9186031B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Mar 15, 2010 |
| Grant date | Nov 17, 2015 |
| Priority date | — |
| Expiry date | Nov 1, 2033 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L11/4088
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
An elongated solution injection bar operable in a cleaning system as a combination dry vacuum and fluid carpet cleaner. The elongated solution injection bar having an upper solution distribution and pressure equalization chamber in fluid communication with a lower solution discharge chamber through a solution flow restrictor structured for distributing hot liquid cleaning solution in a substantially uniform flow along substantially the entire length of a cleaning head operating surface. The hot liquid cleaning solution being discharged from the lower solution discharge chamber at a volumetric flow rate of or about 1 gallon per minute (gpm) or less, so that the liquid cleaning solution is discharged to the operating surface as a flood under pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.