Device for evaporating a volatile material
US10322201B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 7, 2014 |
| Grant date | Jun 18, 2019 |
| Priority date | — |
| Expiry date | Sep 25, 2035 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61L2209/135
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An assembly for evaporating a volatile material is described, the assembly comprising a device and a refill which are detachable from one another:wherein the device comprises a magnetic induction coil configured to operate with an alternating current passed therethrough at a frequency of between substantially 20 KHz to substantially 500 KHz and one or more volatile fluid emanation channels containing at least one piece of heat-conducting, non-magnetic metal foil and/or deposited heat-conducting, non-magnetic metal; and wherein the refill comprises at least one magnetic susceptor having a coercivity of substantially 50 ampere/meter (HC) to substantially 1500 ampere/meter (HC) and a substantially liquid-tight sealed reservoir containing the volatile material; wherein, in use, the magnetic susceptor(s) is arranged to heat the material predominately by magnetic hysteresis when the magnetic susceptor(s) is at least partially positioned in the induced magnetic field generated, in use, when said alternating current is passed through the induction coil. Refills, devices and methods of use are also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.