Imported: 17 Feb '17 | Published: 28 Jun '11
USPTO - Utility Patents
A modular burner for a cooking plate of a cooking appliance comprises a burner base (20) in turn comprising a framework (22), a burner base (21) which can be centrally assembled to the framework (22) and at least one cover for covering the framework (22) and the burner base (21).
The present invention relates to a modular burner for a cooking plate.
The burner according to the invention is particularly but not exclusively destined for application to cooking tops such as those described and illustrated in patent application PCT/EP2005/011174 in the name of Inzaghi Enzo, said PCT should be considered as being an integrant part of the present patent application.
Cooking tops for stoves, having a series of burners situated in the centre of cooking plates and equipped with underlying basins suitable for collecting drips and food residues which overflow from cooking containers, have been known for some time.
These burners are generally produced with a circular shape and have a series of holes or notches along the circumference for the gas outlet, flame-dividers, through which the flame is distributed for heating the bottom of the container.
According to the known art therefore, both the plate and the basin have a central opening with relatively large dimensions, through which the burner passes, creating in this region an expansion bowl which is in turn covered by a cover equipped with flame-divider notches.
This configuration of the cooking plate according to the known art is not without drawbacks.
First of all, the cleaning of the burner can only be partial, mostly applied to the removable cover, and is difficult and approximate with respect to the expansion bowl.
The food drips can also occupy the spaces between the burner and the basin, also penetrating the latter, along the expansion bowl, which makes the cleaning of these elements lengthy and ineffective.
Possible maintenance or substitution of the elements relates to the cover and also the expansion bowl which, as they are the elements of the plate most subject to physical-chemical aggression, are more susceptible to damage.
Another drawback can be found in the limited possibility of correctly distributing the flame with a variation in the maximum heating capacity to be obtained in a burner. In this configuration, the maximum flame capacity is directly correlated to the diameter of the burner, upon increasing this diameter, however, a vaster flameless central region is created, jeopardizing the distribution uniformity of the flame under the container.
A general objective of the present invention is therefore to overcome the above disadvantages of the known art by providing a modular burner for cooking plates.
A particular objective of the present invention is to provide a modular burner which is easy to clean.
Further objectives of the present invention are to provide a cooking plate with a burner which can be easily removed and washed, resistant to the most critical conditions and modular for producing various forms of cooking tops.
In view of the above objectives, the concept of the present invention is to provide a modular burner for cooking plates, having the characteristics indicated in the enclosed claims.
With reference to the figures, a modular burner 10 destined for a cooking plate of a cooking appliance comprises a first burner base 20 in turn comprising a framework 22 non-limitingly illustrated as square-shaped, a second burner base 21 which can be centrally assembled with respect to the framework 22, at least one cover but preferably an outer cover 11 and an inner cover 12 separated and respectively destined for covering the framework 22 and the second burner base 21.
The framework comprises a series of supporting arms 23 which extend radially towards the centre thereof and a burner arm 24 fed by a connection 25 situated along the framework 22.
In the embodiment illustrated with a square framework, there are three supporting arms 23 leaving the centre of three sides of the framework and a burner arm 24 leaving the centre of the fourth side, the number and position of these however can differ.
The burner arm 24 is therefore “U”-shaped and is equipped with a channel 29′ connected to the connection 25 for the feeding of the gas to the whole second burner base 21.
The burner arm 24 also has flame-divider notches 30 situated along the edge of the wings 35 of the “U” to allow the formation of the flame along this section.
At the end facing the inside of the framework, each supporting arm 23 has a seat 31 equipped with a hole 19 suitable for housing the corresponding ends of the burner second base 21 and allow it to be fixed by means of screws 15.
As the burner arm 24 has to allow the passage of gas along the channel 29′, it has a lower bracket 38 suitable for being connected to a corresponding lower counter-element 37 extending from the second burner base 21.
The framework 22 is also equipped with further holes 19 for fixing the outer cover 11 and inner cover 12.
The second burner base 21 is equipped with radial channels 27 configured so as to correspond to the arms 23, 24 which support them and allow the circulation of gas fed by the channel 29′ connected to the connection 25.
The second burner base 21 also comprises a crown 26 having a central aeration opening 28, the channels 27 extend radially from said crown.
Three of the channels 27 are each equipped at their free end with a bracket 32 with a hole 33 destined for one of the three arms 23.
The fourth channel 27 is arranged for being connected to the burner arm 24 and has a lower counter-element 37 for the purpose.
Both the crown 26 and the channels 27 have a “U”-shaped profile with wings 35 and a bottom 36.
The three channels 27 destined for being connected to the three supporting arms 23 are also equipped with a transversal septum 34 which closes the channel at the end to be inserted in the seat 31.
The fourth channel 27 destined for connection with the burner arm 24, on the other hand, has a free duct 29 to allow the entry of gas to the burner.
Flame-divider notches 30 are present along the sides of the wings 35.
The covers 11 and 12 are provided for the upper closing of the ducts, which can be seal-fixed by means of screws 15 to be screwed into specific holes 19 correspondingly situated in the framework 22.
Said covers 11, 12 have upper first and second wings 13 and 13′, respectively, for supporting the cooking containers in a raised position with respect to the burner, the first wings 13 extend from the outer cover 11 whereas the second wings extend from the inner cover 12 to support smaller containers.
The outer cover 11 therefore corresponds to the framework 22, and has holes 14 corresponding to the holes 19 for fixing with screws 15.
The inner cover 12 corresponds to the second burner base 21, in particular it comprises four plates 17 radially extending from a central crown 16 configured so as to correspond to the radial channels 27 and the crown 26 of the second burner base, respectively.
The inner cover 12 also has an opening 18 corresponding to the aeration opening 28 of the second burner base.
In this way, the flame and combustion distribution is optimized and it is extremely easy to dismantle and clean the inner cover and burner base without having to intervene on the outer cover and framework.
The washing of the burner is much more practical with respect to conventional burners, as it is possible to effect said washing in dishwashers, for example, or with suitable solvents suitable for dissolving the crusting.
The burner according to the invention has advantageous variants.
FIG. 5 illustrates a rounded cover 50 destined for covering the second burner base 21.
The cover is equipped with channels 51 equipped with flame-divider notches 53 along the lower edges 52.
There are also wings 55 for supporting the cooking containers in a raised position with respect to the burner, brackets with a hole 56 destined for fixing to the corresponding brackets of the arms of the second burner base (21), and an upper counter-element 57 at the end of the channel which corresponds to the lower counter-element of each arm of the second burner base 56. FIGS. 6-8 illustrate a double burner 100 with a small flame and large flame.
The burner therefore comprises the first burner base 20 connected to a third burner base 120 destined for a burner with a double crown 121, destined for a fourth burner base with an outer crown 122 and an inner crown 123 connected to each other.
The third burner base 120 is equipped with supporting arms 126 and at least one burner arm 124 fed by a connection 125.
The cover 101 of the framework correspondingly has a double dimension for covering both of the frameworks of first burner base 20, and third burner base 120 whereas a cover 112 is envisaged of the double-crowned burner forming an outer crown 112 and an inner crown 113, whereas the small burner envisages the cover 56 described above.
FIGS. 9-12 illustrate a large-flame burner 130, consisting of a fourth burner base 131 correspondingly extended, preferably equipped with two opposite burner arms 134 each having its own feeding connection 135 and four supporting arms 136 arranged centrally.
The double-crowned burner base 150 has two opposite extended ducts 153 suitable for connection to the two burner arms 134 and four supporting arms 154 corresponding to the arms 136.
The fifth burner base has an outer crown 151 and an inner crown 152 connected for the gas circulation.
The fourth burner base 131 and burner crown are closed above by an outer perimetric cover 141 and a double-crowned cover having an outer crown 142 and inner crown 143 and two opposite extended plates 144 suitable for closing the extended ducts 153.
FIG. 13 illustrates another embodiment of a double small-small flame burner 200 in which a single double base 220 equipped with two burner arms 224 allows the assembly of two burners 21, the whole unit being closed above by an outer cover 211 and two inner covers 12 respectively.
With reference to FIGS. 14 and 15, these illustrate an oblong burner for a fish pan 250 consisting of a sixth burner base 251 correspondingly extended preferably equipped with two opposite burner arms 254 each having its own feeding connection 255 and six supporting arms 256 arranged centrally.
The seventh burner base 261 has an oblong crown 262 and two opposite extended ducts 264 suitable for connection to the two burner arms 254 and six supporting arms 263 corresponding to the base arms 256.
The sixth burner base 251 and burner 261 are respectively closed above by an outer perimetric cover 271 and an oblong cover having an oblong crown 273 and two opposite extended plates 272 suitable for closing the extended ducts 264.
FIGS. 16-18 illustrate different cooling plate compositions using the burners described above, and respectively:
a composition of two double small-flame side burners 200 with a central large-flame burner 130;
a composition of a double small-flame side burner 200 with a central oblong burner for a fish pan 250 and a double large-small flame side burner 100;
a composition of two double small-flame side burners 200 with a central oblong burner for a fish pan 250.
With reference to the present description and relative figures, it is evident how a modular burner for a cooking plate according to the invention is particularly useful and advantageous. The objective mentioned in the preamble of the description is therefore achieved.
The forms of the burner according to the invention can obviously be different from those shown for illustrative and non-limiting purposes in the drawings.
The protection scope of the invention is therefore delimited by the enclosed claims.