Fog-generating device comprising a reagent and ignition means
US10189753B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 30, 2013 |
| Grant date | Jan 29, 2019 |
| Priority date | — |
| Expiry date | Feb 8, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B15/02
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention relates to a fog-generating device comprising a reagent (1), ignition means (2), a reservoir (3) containing a fog-generating material (4), and a heat exchanger wherein gas generated by ignition of the reagent (1) drives fog-generating material from said reservoir to said heat exchanger. Further it relates to a removable housing for a fog-generating device comprising a reagent and a reservoir containing a fog-generating material, wherein in that said removable housing further comprises means to allow transmission of an ignition signal from said fog-generating device to said reagent. The invention further provides the use of said device and/or removable housing for the generation of fog, in particular to protect against intruders and physical treat by persons. In a particular embodiment, the fog-generating device of the present invention or the removable housing therefore comprises depressurizing means (18). Depressurizing means allow the escape of gas from the device so that the pressure inside the device is reduced and becomes closer to atmospheric pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.