US2018206295A1PendingUtilityA1
Device for Evaporating a Volatile Material
Est. expiryAug 8, 2032(~6.1 yrs left)· nominal 20-yr term from priority
A61L 9/01A61L 9/035A61L 9/015A61L 9/037A01M 1/2061A61M 15/003A61L 9/03H05B 6/105H05B 6/06A61L 2209/11A61M 2205/368A61L 9/02H05B 6/10A61M 11/042
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Claims
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 wherein the refill comprises at least one magnetic susceptor having a coercivity of substantially 50 ampere/metre (H c ) to substantially 1500 ampere/metre (H c ) 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.
Claims
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43 . A refill adapted for attachment to a device which evaporates a volatile material, wherein the refill comprises at least one magnetic susceptor having a coercivity of substantially 50 ampere/metre (Hc) to substantially 1500 ampere/metre (Hc) and a substantially liquid-tight sealed reservoir containing the volatile material.
44 . The refill according to claim 43 , wherein the refill is provided with a membrane to substantially liquid-tight seal the reservoir.
45 . The refill according to claim 44 , wherein the membrane is a gas-permeable membrane.
46 . The refill according to claim 44 , wherein the membrane includes one or more gas-permeable portions.
47 . The refill according to claim 43 , wherein the refill is provided with a pierceable film to substantially liquid-tight seal the reservoir.
48 . The refill according to claim 47 , wherein the refill may further comprise a lid.
49 . The refill according to claim 43 , wherein the magnetic susceptor is embedded within the reservoir.
50 . The refill according to claim 43 , wherein the reservoir is lined in whole or in part by the magnetic susceptor.
51 . The refill according to claim 43 , wherein the reservoir is composed in whole or in part of the magnetic susceptor.
52 . The refill according to claim 43 , wherein the magnetic susceptor is in the shape of a non-coiled strip.
53 . The refill according to claim 43 , wherein the volatile material is a volatile liquid and/or a volatile gel and wherein the refill further comprises a volatile material transport means for transporting and storing some of the volatile liquid and/or gel.
54 . The refill according to claim 53 , wherein the susceptor(s) is placed in contact with the volatile material transport means.
55 . The refill according to claim 54 , wherein the susceptor(s) is wholly or partially embedded in the volatile material transport means.
56 . The refill according to claim 53 , wherein the volatile material transport means at least partially lines the reservoir.
57 . The refill according to claim 43 , wherein the magnetic susceptor(s) comprises at least one of the following materials: cast iron (annealed); nickel; nickel-coated steel; cobalt; carbon steel (annealed) 1% C; constructional steel, constructional steel (0.3% C, 1% Ni), constructional steel (0.4% C, 3% Ni, 1.5% Cr); cobalt-iron alloy, Pernnendur 24 (24% Co), Pernnendur 49 (49% Co); Heusler alloy (61% Cu, 26% Mn, 13% Al); tool steel; powdered iron, powdered iron set in a resin base; iron filings set in a resin base.
58 . The refill according to claim 43 , wherein the susceptor(s) is made from a material with a stable Curie temperature, preferably less than 150° C.
59 . The refill according to claim 43 , wherein the refill is provided with a single magnetic susceptor.
60 . The refill according to claim 43 , wherein the refill is provided with more than one magnetic susceptor.
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62 . The refill according to claim 43 , wherein the refill operates to evaporate the volatile material when the refill is operatively connected to the device, the device comprising 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 to induce a magnetic field.
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90 . (canceled)Cited by (0)
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