Jet spray nozzle
US5125579A · kind A · utility
Inventor
Key dates
| Filing date | Oct 5, 1990 |
| Grant date | Jun 30, 1992 |
| Priority date | — |
| Expiry date | Oct 5, 2010 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA62C31/03
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The object of the invention is to provide a thin, close curtain of liquid, for instance in fire-fighting. According to the invention, this is achieved by use of a nozzle having a central control body which is movable within an outer sleeve, both the control body and the outer sleeve having gently tapering wall portions facing each other. The gently tapering portion of the control body merges smoothly into the rear side of a disc-shaped end portion provided thereon, such that the liquid, in a thin layer, will follow the central control body and be deflected into a substantially radial direction relative to the nozzle so as to form a liquid curtain directed transversely in relation to the nozzle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.