(19) |
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(11) |
EP 0 947 773 A2 |
(12) |
EUROPEAN PATENT APPLICATION |
(43) |
Date of publication: |
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06.10.1999 Bulletin 1999/40 |
(22) |
Date of filing: 31.03.1999 |
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(84) |
Designated Contracting States: |
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AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
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Designated Extension States: |
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AL LT LV MK RO SI |
(30) |
Priority: |
03.04.1998 ES 9800710
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(71) |
Applicant: Mendoza Soria, Carmelo |
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08203 Sabadell,
Barcelona (ES) |
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(72) |
Inventor: |
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- Mendoza Soria, Carmelo
08203 Sabadell,
Barcelona (ES)
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(74) |
Representative: Aguilar Forment, Domènec |
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c/o Aguilar & Revenga
C. Consell de Cent 415, 5.o-1.a 08009 Barcelona 08009 Barcelona (ES) |
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(54) |
Diffuser support base for burners and construction method |
(57) The base is unique in that it is composed of non-porous vitrified refractory material.
The construction method involves mixing a number of atomised powder-based components
to which water and a mould release agent are then added, the mixed product being selected
by means of a sieve test before being cast and pressed; the base obtained thereby
is dried with hot air, polished, fired for the first time, glazed and fired again.
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OBJECT OF THE INVENTION
[0001] As its name indicates, the invention relates to a base like those used on cooker
and cooking top burners to support the diffusers and which are connected to the gas
pipe which supplies gas to the burner, as well as the process for constructing the
said base.
BACKGROUND
[0002] At present, the diffuser bases used on cooker and cooking top burners are made of
cast iron and are therefore not porous.
[0003] When hot food spills onto the hot base, it becomes stratified on the base and part
of the food becomes incrusted on the inside of the pores, preventing the base from
coming completely clean using conventional cleaning methods.
DESCRIPTION OF THE INVENTION
[0004] To solve these problems, the diffuser support base referred to herein has been uniquely
designed in that it is made of non-porous vitrified refractory material in order to
reduce food which spills on the hot base from sticking, thereby facilitating subsequent
cleaning considerably and enabling the complete elimination of all spilled food since
it is burned on the surface of the base rather than inside the pores, as occurs with
conventional burners.
[0005] According to the invention, the process used to obtain the base is composed of the
following steps: a) the following components, in the form of atomised powder, are
mixed together: silicon dioxide (SiO2), aluminium trioxide (Al2O3), titanium dioxide
(TiO2), ferrous oxide (Fe203), magnesium oxide (MgO), potassium oxide (K20), calcium
oxide (CaO), sodium oxide (Na2O), phosphorous (P), and fluoride (F); b) water and
olein-based mould release agents are added to the mix, c) the product obtained is
selected by sieve testing, d) the selected product is placed in a mould and pressure
applied thereto to shape the base, e) the base obtained thereby is introduced into
a hot air chamber and then polished, g) the base is fired at a temperature of about
1000°C, g) the base is glazed and h) the base is fired again at a temperature of 1350°C.
DESCRIPTION OF THE DRAWINGS
[0006] In order to facilitate an understanding of the invention, a sheet of drawings is
attached to this description in which:
- Figure 1 shows a vertical section of a portion of a cooking top, where the base in
question can be seen connected to the gas pipe and supporting a diffuser.
PREFERRED EMBODIMENT OF THE INVENTION
[0007] As observed in the referenced figures, the base (1) which is part of the cooking
top burner (2) is connected to the gas pipe (3) which supplies the gas to the burner
and also serves as a diffuser support (4), is unique in that it is made of non-porous
vitrified material in order to reduce food from sticking to the hot base during preparation
due to the heat produced by the combustion of the gas from the holes in the base (1)
and the diffuser (4).
[0008] No further description is deemed necessary since any expert in the field will understand
the scope of the invention and the advantages derived therefrom.
[0009] The terms in which this description has been written shall always be understood in
the widest, non-limiting sense, the essential features of the invention being contained
in the following claims:
1. Diffuser support base for burners which, being of the type used on cookers and cooking
top to support the diffusers and which are connected to the end of the gas pipe that
supplies gas to the burner, is characterised in that it is made of non-porous vitrified
refractory material.
2. Process for obtaining the diffuser support base mentioned in the preceding claim,
characterised in that it is composed of the following steps: a) the following components,
in the form of atomised powder, are mixed together: silicon dioxide (SiO2), aluminium
trioxide (Al2O3), titanium dioxide (TiO2), ferrous oxide (Fe2O3), magnesium oxide
(MgO), potassium oxide (K2O), calcium oxide (CaO), sodium oxide (Na2O), phosphorous
(P), and fluoride (F); b) water and olein-based mould release agents are added to
the mix, c) the product obtained is selected by sieve testing, d) the chosen product
is placed in a mould and pressure applied thereto to shape the base, e) the base obtained
thereby is introduced into a hot air chamber and then polished, g) the base is fired
at a temperature of about 1000°C, g) the base is glazed, and h) the base is fired
again at a temperature of 1350°C.
