Method and apparatus of vaporizing active substances
US4735358A · kind A · utility
107Cited by
3References
16Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Mar 3, 1987 |
| Grant date | Apr 5, 1988 |
| Priority date | — |
| Expiry date | Mar 3, 2007 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/6081
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The invention provides a method and an apparatus which assure a sustained vaporization of deodorants, perfumes, pest control agents and other substances intended to modify, condition on otherwise alter the atmosphere. A tape comprising a base material and, as supported thereon, at least one active substance which vaporizes at ambient temperature or under heating in a condition in which its vaporization is inhibited is driven relative to a head which is adapted to remove the inhibition of vaporization, whereby the active substance is vaporized at a constant rate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.