Dispensing device for air treatment agents
US9132205B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 5, 2007 |
| Grant date | Sep 15, 2015 |
| Priority date | — |
| Expiry date | Feb 13, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61L9/127
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention relates to a dispensing device for at least one air treatment agent comprising at least one airborne agent detector operable to detect airborne agents in the air; receiving means for receiving at least one source of air treatment agent; and control means for releasing an amount of at least one air treatment agent from a source thereof received in the receiving means when a current airborne agent level detected by the airborne agent detector deviates from a background airborne agent level detected by the airborne agent detector by more than a predetermined amount, wherein the background airborne agent level is calculated by the device. The present invention also relates to a method of dispensing at least one air treatment agent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.