Device for evaporating a volatile fluid
US10293069B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 14, 2018 |
| Grant date | May 21, 2019 |
| Priority date | — |
| Expiry date | Jun 14, 2038 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61L2209/135
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An assembly for evaporating a volatile fluid is described, the assembly including a device and a refill which are detachable from one another:wherein the device includes 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 a volatile fluid transport part receiving area containing at least one piece of heat-conducting, non-magnetic metal foil and/or deposited heat-conducting, non-magnetic metal; and wherein the refill includes a reservoir for the volatile fluid, a volatile fluid transport part to draw the fluid from the reservoir, and at least one magnetic susceptor having a coercivity of substantially 50 ampere/meter (Hc) to substantially 1500 ampere/meter (Hc).arranged to heat the wick predominately by magnetic hysteresis when an alternating current is passed through the induction coil, wherein the refill is attached to the device such that at least one magnetic susceptor is at least partially located within the volatile fluid transport part receiving area. Refills, devices and methods of operation are also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.