Multiple chemical sprayer
US7905428B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 23, 2005 |
| Grant date | Mar 15, 2011 |
| Priority date | — |
| Expiry date | Jul 8, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86823
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A sprayer has a sprayer outlet and a pressurizable reservoir adapted to contain a fluid. The reservoir has an air-pressure outlet and a reservoir outlet, the reservoir outlet being in fluid connection with the sprayer outlet. Detachable, pressurizable tanks are adapted to contain a chemical, each tank having a chemical outlet and an air-pressure inlet. Each air-pressure inlet is in fluid connection with the air-pressure outlet of the reservoir for equalizing air pressure between the reservoir and each tank. A switch is adjustable between a plurality of settings for causing at least one of the chemical outlets to be in fluid connection with the sprayer outlet. A ratio valve is provided for selecting a fluid flow rate out of the selected outlet. Fluids flowing into the sprayer outlet from the outlets are mixed together prior to discharge from the sprayer outlet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.