U.S. patent application number 09/770591 was filed with the patent office on 2001-08-02 for multipurpose heating device for vaporising active substances.
Invention is credited to Basaganas Millan, Jordi.
Application Number | 20010010758 09/770591 |
Document ID | / |
Family ID | 8304666 |
Filed Date | 2001-08-02 |
United States Patent
Application |
20010010758 |
Kind Code |
A1 |
Basaganas Millan, Jordi |
August 2, 2001 |
Multipurpose heating device for vaporising active substances
Abstract
It includes a housing (1) within which a resistor (3) is
arranged connected to two connections (2) projecting through the
bottom of the housing (1), further provided with an aluminum plate
(5) serving as a radiator which is held inside at the top of the
housing (1), held by strips (6) in the latter. The housing (1) and
the aluminum plate (5) are provided with a hole (7) through which a
wick may pass to project through the mouth of a container holding
liquid product to be vaporized, by heating the wick through the
resistor. A frame-like spacer element (8) is arranged on the
housing (1) with fixing means to the housing (1), defining a
supporting surface for a tablet (12), which tablet may be spaced to
a greater or lesser extent by means of the spacer element (8) in
order for said tablet (12) to be reached at all times by the
appropriate heat to be full efficiently vaporized. The heating
device may be used for both liquid and solid products.
Inventors: |
Basaganas Millan, Jordi;
(Barcelona, ES) |
Correspondence
Address: |
HELFGOTT & KARAS, P.C.
EMPIRE STATE BUILDING
60TH FLOOR
NEW YORK
NY
10118-6098
US
|
Family ID: |
8304666 |
Appl. No.: |
09/770591 |
Filed: |
January 26, 2001 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
|
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09770591 |
Jan 26, 2001 |
|
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PCT/ES99/00240 |
Jul 28, 1999 |
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Current U.S.
Class: |
392/390 ;
219/505; 392/391; 392/395 |
Current CPC
Class: |
A01M 1/2077 20130101;
A61L 9/03 20130101 |
Class at
Publication: |
392/390 ;
219/505; 392/391; 392/395 |
International
Class: |
H05B 001/02; F24F
006/10 |
Foreign Application Data
Date |
Code |
Application Number |
Jan 26, 2001 |
ES |
9801592 |
Claims
1. A multipurpose heating device for vaporising active substances
consisting of a housing (1) in which a resistor (3), which is
preferably of the PTC type, is arranged, connected with the
appropriate connections (2) projecting through the base of said
housing (1), and further comprising a plate as a radiating element
(5) duly fixed with strips (6) on the top inner part of the actual
housing (1), the latter being in turn provided, and so is the
actual plate serving as a radiator (5), with a hole (7),
characterised in that the top of the housing (1) of the heating
device is provided with a spacer element (8) fitted with fixing
means to said housing (1), which element (8) is furnished with the
means to support the tablet (12) that maintains it distanced from
the heating element, being the width of these support and
distancing means, between the tablet (12) and the heating element,
calculated previously so as to provoke a greater or lesser distance
and with that, a greater or lower calorific contribution to the
tablet.
2. A multipurpose heating device for vaporising active substances,
as in claim 1, characterised in that the spacer element (8) for
adjusting the spacing between the heating plate (5) and the tablet
(12) arranged on the heating device has elastic strips (9) locked
in steps (10) on the side surface of the housing (1), defining the
fixing means of said spacer element (8) on the housing of the
heating device.
3. a multipurpose heating device for vaporising active substances,
as in claim 1, characterised in that the heater (5) consists of an
aluminium plate with which a better distribution of the temperature
is obtained on the surface of the heating device, and having a
ledge (15) around the hole (7) to improve liquid evaporation, since
increasing the heat radiation surface toward the wick.
Description
OBJECT OF THE INVENTION
[0001] The invention relates to a multipurpose heating device
designed to stand as a means for vaporising active substances, such
as those used as insecticides or air-fresheners. The device, which
is provided with a resistor, preferably of the PTC type, as the
heating means, is structured to be able to evaporate liquids,
tablets and gels without distinction, and at all times with a
maximum performance, whatever the type of product to be evaporated
may be.
BACKGROUND OF THE INVENTION
[0002] There are electrically powered heating devices for
vaporising liquids contained in diffusers, in some cases, and
solids in the form of tablets in other cases, and indeed sometimes
allowing tablets or liquids to be used without distinction, at
will.
[0003] Present-day known devices for vaporising these products
usually consist of a resistor which upon being activated heats a
ceramic plate through which the relevant substance is vaporised
close to a tablet diffuser. On the other hand, the heating device
may be provided with a hole in which a wick is arranged projecting
to the outside of a diffuser container holding a liquid product,
thereby for heating of that wick to cause the liquid substance held
in the container to be vaporised.
[0004] The power required in heating the heating device differs in
the case of diffusers containing liquids and solid or tablet
products, because in the first case a greater temperature is
required at the mouth of the hole, whereas in the latter case the
entire surface of the tablet can come into contact with the ceramic
plate, whence less heat is required for sublimation to take
place.
[0005] That is why a same heating device is neither advisable nor
indeed effective to be able to vaporise tablet form products and
vaporise liquid products without distinction, because the optimum
working temperature of the wick in the case of liquid products does
not match that of the tablet in the case of solid products, and
therefore two types of heating devices are normally marketed, one
specific for liquids and another one which is also specific for
solids or tablets.
DESCRIPTION OF THE INVENTION
[0006] The heating device disclosed herein has been devised to
fully overcome the above-mentioned drawbacks, i.e. it may be used
without distinction and as may be required on case by case basis
for liquid products or for tablet form products.
[0007] More specifically, the first novel characteristic of the
heating device subject of the invention lies in that the general
body of the heating device is supplemented with a spacer element
provided with fixing means to the general body of the heating
device, and therefore such spacer element may in each case be
arranged at a greater or lesser distance from the heat radiating
plate, thus allowing the solid product to be spaced to a greater or
lesser extent; i.e. said spacer element is used to adjust the
spacing between the tablet and the radiating plate in order to
achieve an effective operation, starting from the fact that the
heating device has previously been studied and constructed with a
specific extent of evaporation and temperature to work as a heating
device for liquid products, i.e. to work with a wick, and therefore
taking that as the starting point, when the heating device is to be
used to vaporise solid products, such as tablets, the spacer
element will be used to adjust the spacing between the tablet and
the radiating plate.
[0008] Another novel characteristic lies in that the heating plate
at issue is not made of ceramics as is conventionally the case but
consists of an aluminium plate. for an enhanced distribution of the
temperature on the heater surface. and with that improvement the
highest temperature reached on the surface of the aluminium
radiating plate is less than in a ceramic heating device, thereby
producing a lesser degradation of the insecticide active principles
and of perfumes, due to an excess temperature, or in other words a
better efficiency is achieved.
[0009] Another advantage of the inventive device lies in the
perfect adjustment of the temperature required for each
application, whether for liquid products or for tablets, based upon
the above-mentioned spacer element.
DESCRIPTION OF THE DRAWINGS
[0010] In order to provide a fuller description and contribute to
the complete understanding of the characteristics of the invention,
in accordance with a preferred practical embodiment thereof, a set
of drawings is attached to the specification as an integral part
thereof which, while purely illustrative and not fully
comprehensive, shows the following:
[0011] FIG. 1.--Is an elevation exploded view of the various
components making up the multipurpose heating device subject of the
invention, showing a sectional view of the sheet or plate making up
the aluminium radiator.
[0012] FIG. 2.--Is a side elevation view of the fully mounted
heating device.
[0013] FIG. 3.--Is a top plan view of the same heating device shown
in the preceding figures, with the spacer element on which the
relevant plate acting as an aluminium radiator is to be
supported.
[0014] FIG. 4.--Is a sectional view along line A-A of the preceding
figure, with a tablet arranged supported on the spacer element.
[0015] FIG. 5.--Is another sectional view of the same heating
device, as applied on a liquid diffuser container, with a wick
projecting to the outside through which the relevant vaporisation
takes place.
PREFERRED EMBODIMENT OF THE INVENTION
[0016] With reference to the above-mentioned figures, the heating
device of the invention comprises a housing (1) with appropriate
connections (2) passing through its base and a resistor (3)
arranged between these, which connections (2) pass through
appropriate windows or slots purposely provided on the base of the
housing (1).
[0017] The resistor (3) is a PTC type resistor and has an isolating
film (4) arranged above it, which lies just below the appropriate
radiator (5), which in this case consists of an aluminium plate or
sheet, the latter being held at the top of the housing (1) by means
of elastic strips (6) with which said housing (1) is purposely
provided on the top edges of two of its side-walls.
[0018] Both the housing (1) and the aluminium plate (5)
constituting the radiator are provided with a hole (7).
[0019] The heating device thus constructed is further provided, and
there lies one of the main characteristics of the invention, with a
spacer element (8) consisting of a sort of frame coupled on the top
contour of that device, and having side strips (9) or any other
conventional means to be fixed by being locked onto appropriate
steps (10) purposely provided on the respective faces of the
housing (1).
[0020] This frame-like spacer element (8) has small projections
(11) projecting inward from its sides, altogether forming a support
for a tablet (12), as is clearly shown in FIG. 4.
[0021] In this way, and when the heating device is applied to
vaporise a liquid product held in a container (13) from which a
wick (14) emerges, passing through the hole (7) of the device, heat
is conveyed through the bore or said hole (7) of the aluminium
radiator (5), said heat being conveyed to the wick (14) with the
assistance of the ledge (14), the latter increasing the heat
radiation surface to the wick, causing the liquid held in the
container (13) to be volatised or evaporated.
[0022] Clearly, and as aforesaid, the temperature supplied by the
heating device will be adjusted to whatever is required for
obtaining the desired evaporation speed.
[0023] If a solid product, in the form of both an insecticide and
an air-freshener tablet (12), is to be evaporated, once the
temperature required for the preceding case is fixed, the size of
the spacer element (8) shall be adjusted in order to achieve a
suitable spacing between said tablet (12) and the aluminium
radiator (5) in order thereby to obtain a proper evaporation.
[0024] In conclusion, depending on the substances (insecticides,
air-fresheners, etc.) or products to be evaporated (liquid,
tablets, gels, etc.) the height of the spacer or separating element
(8) shall be adjusted in each case, to achieve at all times a
perfect adjustment for each case.
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