Multi-component spraying system
US4967956A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 24, 1989 |
| Grant date | Nov 6, 1990 |
| Priority date | — |
| Expiry date | Apr 24, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S239/08
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An air-assisted, airless atomization, plural component spraying system and method includes a first source of a first component, e.g., a resin; a second source of a second component, e.g., catalyst for the resin; spraying means to mix the resin and catalyst and direct the mixture to a substrate and a source of compressed air. The spraying means includes a nozzle assembly which comprises a liquid nozzle for forming liquid into a fan-like film with expanding edges extending from a liquid orifice, and a nozzle assembly for directing a flow of compressed air and catalyst at the fan-like film closely adjacent the liquid orifice. In an internal mix system, compressed air is directed to impinge upon the expanding edges of the fan-like stream of mixed resin and catalyst downstream of the impingement of a flow of compressed air on the fan-like stream to capture particles in small, uniform spray pattern.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.