BOILING OVER

TECHNICAL FIELD

The invention relates to a machine that automatically makes Turkish coffee in the cooking reservoir without boiling the coffee over. STATE OF ART

The most preferred and beloved feature of Turkish coffee is its foam and a non- foamy Turkish coffee means the experience for the one drinking it will not be enjoyable. Turkish coffee needs to be cooked without boiling over so as to have the desired foam. Nowadays, many types of automatic coffee machines have been developed and being used to make Turkish coffee this way without boiling over.

Automatic coffee machines that are available on the market are equipped with infrared or ultrasonic reflective systems to serve as level detection sensors in a compartment above the reservoir to detect the level of the mixture and the height of the foam in the cooking reservoir (coffee pot). In infrared measurement technique, faulty level measurements may be caused due to the beam sent not having a plane feature of the foam surface, its being reflected on the sides of the reservoir, the color change of the coffee in the cooking process and the effect of coffee vapor and condensation. Again, in infrared measurement technique, the scratching and staining of the infrared permeable plastic part in front of the sensor during use can cause sensitivity losses in cooking control due to measurement errors.

The ultrasonic measuring technique, which is another measurement technique, is generally known as an expensive solution except for the cost-effective structure. It has a drawback due to its effect on production costs. In Sensor-Lumina measuring technique, the level of the coffee is determined when the sensors located in the vertical row window detects the light from the light source in the inner reservoir ceiling. The large number of sensors used here also causes a cost drawback. In addition, it is also adversely affected by environmental lights

DESCRIPTION OF THE INVENTION

The present invention relates to an automatic Turkish coffee machine to eliminate the aforementioned disadvantages and provide new advantages to the relevant technical field.

An object of the invention is to cook Turkish coffee contained in the cooking reservoir automatically without boiling it over. The sensor-pulse technology of the invention has multiple light sources that can be operated at different times in the vertical row window. The inner reservoir chamber has one or two sensors that detect light transmitted through the vertical row window. Thus, the boiling over is detected when the coffee in the reservoir is being cooked and the heat source is cut off.

The advantage of the Sensor-Pulse used in the machine of the invention is the ease of installation in production due to the use of one or two parallel sensors considering the importance of the placement angle of the sensors, the product cost advantage and the fact that the calibration process will be applied only for one or two parallel sensors due to the sensor tolerances. Positioning the sensor above reduces the negative effects of environmental light and ensures more accurate measurement.

Another object of the invention is to provide an adaptable structure for the boiling over and cooking control of beverages that bubble when heated such as cappuccino, espresso, and milk.

Drawings

Embodiments of the present invention briefly summarized above and discussed in more detail below can be understood by reference to the exemplary embodiments described in the accompanying drawings. It should be noted, however, that the accompanying drawings only illustrate the typical embodiments of the present invention and therefore, they will are not intended to limit the scope of the invention, since it may allow other equally effective embodiments.

Figure 1 is a perspective view of the coffee pot of the invention.

Figure 2 is a front perspective view of the machine of the invention.

Figure 3 is a side sectional view of the invention.

Identical reference numbers are used where possible to identify identical elements common in the figures to facilitate understanding. The figures are not drawn with a scale and can be simplified for clarity. It is contemplated that the elements and features of an embodiment may be usefully incorporated into other embodiments without further explanation.

Description of the Details in the Drawings

The equivalents of the reference numbers shown in the figures are provided below.

1. Coffee pot

2. Coffee pot window

3. Body

4. Light detection sensor

5. Visible or infrared light source

6. Control card section

7. Start button DETAILED DESCRIPTION OF THE INVENTION

In this detailed description, preferred alternatives of the coffee making machine embodiment of the invention are described only for a better understanding of the subject and without any limiting effect.

The invention is characterized in that the coffee making materials put in a coffee pot 1 shown in Figure 1 are cooked in the body 1 equipped with the visible or infrared light source 5 and the light detection sensor 4 shown in Figure 2 and Figure 3.

In the invention, the coffee pot 1 is a part in which coffee, water, and similar mixtures are placed. Coffee pot window 2 is a specially shaped structure that ensures the lights transmitted from the visible or infrared light source 5 passes through the coffee pot window 2 and reaches the light sensing sensor 4 located at the upper part of the body 3 and facing the inside of the coffee pot 1 The coffee-water mixture prevents the light transmitted from certain light sources from reaching the light detection sensor 4 and thus the level is determined.

The body 3 is the main part in which the coffee pot 1 is placed, containing the light sensing sensors 4 and the control card, where the cooking process is controlled and performed. The light sensing sensor 4 inside the body 3 is a material such as ALS (Ambient Light Sensor), LDR (Light Depended/Decreasing Resistor), photodiode, phototransistor which detect the light transmitted from the visible or infrared light sources S and thus detect the level of the coffee-water mixture.

In the invention, the visible or infrared light source 5 may be materials such as led and infrared led, which can be operated simultaneously or independently of one another. The control card section 6 is a structure consisting of an AC-DC converter and a microcontroller that drives the power section and the control part, which provides the operating voltage and current of the control part, and is equipped with electronic and electromechanical circuit elements to switch on or off the heater. The start button 7 is the part that allows the user control on the machine-start-stop functions.

The visible or infrared light source 5 preferably has LEDs, each of which is operated independently at different times and represents certain levels. Due to the light blocking feature of the mixture surface in the coffee pot 1 placed in the body 3, the light detection sensor 4 on the inner ceiling of the body 3 or the light coming into the cells are evaluated by an electronic processor to determine the level of the mixture. The level of the foam formed by cooking the coffee inside the coffee pot 1 according to the Turkish method is measured with high precision and controlled using the Sensor-Pulse measuring technology, this the cooking process is automatically completed.

This is accomplished by means of an electronic comparison of the initial level of the coffee mixture in the coffee pot 1 before heating and the level of foam (due to increased coffee volume). The invention is a machine that ensures the duly cooking of traditional Turkish Coffee using Sensor-Pulse measuring technique in which the gradual visible lights, transmitted by an infrared or LED source, preheating and post-foaming levels of Turkish Coffee in a coffee pot are detected by a microcontroller stimulated by a light detection sensor 4 functioning as ALS (Ambient Light Sensor), LDR (Light depended/decreasing resistor) or as a photodiode or a phototransistor, thus starting or stopping a heater and preventing the boiling over.