Multifunction nozzle
US4944460A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 9, 1988 |
| Grant date | Jul 31, 1990 |
| Priority date | — |
| Expiry date | Sep 9, 2008 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B1/265
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A multifunction nozzle including a peripheral jet nozzle having a first end adapted to be connected to a liquid supply and a second end from which the jet is ejected. The liquid may be plain water or a mixture of water and a foam concentrate. The peripheral jet nozzle is adjustable between straight stream and fog positions. The multifunction nozzle further comprises a sleeve which is attached to and surrounds the peripheral jet nozzle, the sleeve being movable relative to the jet nozzle in the direction of the nozzle axis and the flow of the liquid. The sleeve is movable between a forwardly extended or foam position and a rearwardly retracted or inoperative position. When the sleeve is in the retracted position it is out of the path of the liquid jet and the nozzle may be used in either the straight stream or fog modes. When the sleeve is moved forwardly to the extended position and the peripheral jet nozzle is placed in the fog mode, the diverging liquid jet strikes the inner surface of the sleeve. An agitator is attached to the inner surface of the sleeve and causes the jet to break into fine particles. In the instance where the jet includes a mixture of water and foam concentrat…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.