DE1404739A1 - coffee machine - Google Patents

Description

CALOR APPARSILS ELSCTRZO-DOMSSOiIQUSS, Place Courtois, Lyon (Rhone, France)

coffee machine

The invention relates to a coffee machine with a Container with a hot chamber on the bottom, in the vicinity of which there is a heating element ", this chamber is covered by a bell-shaped part, which at its top by a line from the length which opens into the upper part of the container, and where this heating chamber covered by the bell communicates with the interior of the container through openings.

In the known machines for making coffee, a heating chamber is usually provided at the bottom of the container, on which a line leading upwards is arranged. The line opens into your part of the filter, which is located in the upper part of the container and contains the coffee powder. The boiling water or steam rising through the line moistens the coffee powder, runs out of the filter and flows back into the container.

. ■ BATHROOM

909809/0048

The object of the invention is to provide a coffee machine create where the coffee powder and the im. The water in the container remains in close contact at all times.

This object is achieved in that they have a filter contains, which receives the coffee powder and this filter essentially the entire upper area of the container occupies and that its substantially perpendicular walls are at the level of the walls of the container and which at its lower area has a support plate or the like, which is provided with an opening and frustoconical walls that fit exactly to the Adjust the upper walls of the bell covering the heating chamber and thus rest there.

In the device according to the invention, the coffee powder and the water in the container remain at all times in close connection. The heating chamber, which is extended upwards by the pipeline, causes an inevitable Circulation of the liquid in the container, thus ensuring the "best possible absorption of the coffee aroma by the in water in the machine. The arrangement of a filter Large volume, on the other hand, ensures that the water reaches every coffee particle and is well moistened. This avoids the creation of a compressed coffee mixture from which the entire aroma is not withdrawn except using pressurized steam jets. '·

Since the perforated surface of the filter provided in the present invention is very is large, can-a very close-meshed filter arrangement are provided - which do not have coffee parts lets through, so that there is a clear, unclouded coffee liquid results in a way that cannot be achieved with conventional machines. .

BATH 909 809/004 8 ^:

The in ^which: according to the invention means "located. Water does not come to a boil so that the Kaffe.e its full flavor develops well known, eighth / t to home preparing the -besten coffee, generally." Turkish coffee (Mocha) "called care that the coffee "comes into contact with water ₅ which almost reaches the boiling point, however, never directly cooks" the device of the invention provides such an excellent coffee _f without any preparation at monitoring is required.

The heating element can be formed by a metal body be that with one embedded in its mass electrical conductor is provided, wherein the heating element surrounds at least a part of the heating chamber, such that it causes a rapid increase in the temperature of the water in the chamber.

■ The arrangement of a heating chamber at the bottom of the container near the heating element causes a cyclical movement of the water and the production of an intimate mixture of the same with the coffee powder If desired, can be extended, whereby an infusion of the desired strength can be made without boiling occurs. . "'■. - ■

The metal body can preferably have the shape of a 'above offer' cone, which is also conical surrounds the lower wall of the heating chamber.

An embodiment of the invention is explained below with reference to the drawing » - - ■: ■.

Here shows: ·.

* ■

BADORiGINAL

909809/0048 '<

Fig. 1 is a sectional view of the inventive Coffee machine and .--- · ■

FIG. 2 is a view of the underside of the machine according to FIG. 1 in partial section.

In the illustrated embodiment, the apparatus consists essentially of a container 1 of any desired Shape, which z. B. "cylindrical and above.mit. an A.usgußschnauze 2 is provided. At the bottom of the container 1, a heating chamber 3 is provided, which on the one hand is limited by an approximately conical indentation, which on the wall 4 of the container 1 approximately in the middle Part of the same is attached, and on the other hand by a •• Part-5, which approximately the shape of an inverted funnel ' Has. Between this part 5 and the conical indentation of the bottom 4 passages 6 are provided which connect the chamber 3 with the interior of the container 1 set.

At the bottom 4 of the container 1 a heating element is attached, which is formed by a conical metal body 7'ge ^ · which fits on the indentation of the bottom 4 of the container and is provided with a conductor formed by a heating tube 8 embedded in its mass The metal body 7 is fastened to the bottom of the container 1 by a nut 9 which at the same time seals the container ^{by means of a seal 9 1.}

The part 5 "is. Nach., Above through a cylindrical tube 10 extended, which lies approximately in the axis of the container 1 and opens into the upper part of the same.

A filter 31 is arranged within the container 1, which by a z. B. cylindrical filter wall 12 made of metal

909809/0040

tissue, perforated sheet metal or the like. Is formed. These Filterwnnd is held at the top by a rigid ring 13 and is closed at the bottom by a full plate 14, which has an opening in its center with upturned edges 15, which nuf the tube 10 and ■ Part 5 fits. ·

A cover 16 provided with two concentric edge strips 17 and 18 closes the container at the same time and the filter. The lid is roughly in the shape of a, after cone open at the top, the tip of which practically coincides with the The axis of the tube coincides.

The container 1 is extended at the bottom by a shell or the like, which preferably consists of an insulating molded material and is fastened to the metal body 7 by means of a screw 20. This bowl contains; in addition to the heating element mentioned, two power supply terminals 21 which are connected to the heating tube 8 by conductors (not shown). In the vicinity of the heating element, a device for limiting the temperature is attached, which z. B. is formed by a bimetal strip 22 or the like. As well as by an illuminated sign 23, which are switched on in the supply circuit of the heating element. ^: The bimetallic strip is provided with a control element, which can be operated from the outside by means of a lever "24." which passes through an opening 25 provided in the bottom of the bowl 19. A viewing hole 26 made of a transparent or translucent material is attached to the wall of the bowl opposite the illuminated sign.

The apparatus is also with a handle, 23 from one any insulation material provided, which is preferably on the container 1 is attached. .-.-- ■ · ■ -

909809 / ÜQM

The machine works as follows: ■

To. When the desired amount of coffee is filled into the filter 11, the container 1 is filled with the desired amount of water. The heating pipe is then fed via the temperature limiter and the illuminated sign. The water which has entered the chamber 3 through the openings 6 is quickly heated, whereupon it _{rises in the pipe 10 along the arrow F 1} and then rains in the upper part of the container 1 on the coffee powder after the water has passed the filter has flowed through in the direction of the arrows F ₂ , it falls by its own weight to the bottom of the container 1, where it is sucked in the direction of the arrow F into the heating chamber 3-. Thanks to this circulation, the temperature of the arrangement rises gradually, and when the desired temperature is reached, the temperature limiter automatically interrupts the power supply to the heating element, while at the same time the light goes out and the user is informed ". · That coffee preparation has ended.

Depending on the setting of the temperature limiter 22 can Apparently the- user circulates the water during a more ' or maintained for a shorter period of time, giving it a more or less strong coffee.

Furthermore, the user can also switch off after a first time of the illuminated sign wait for it to light up again tet as he wishes. The cycle then lasts as desired: long, without the bimetallic strip being worked on the mass - of water and coffee powder - comes to a boil. In particular, the consequence of this is that you want the whole thing Can prepare a large amount of coffee at once.

9 098 097

It should be noted that the large capacity of the Filtered !! © "in conjunction with the device for water circulation the correct mixture of the coffee powder and the Water "with simultaneous strong, fast filtering enables.

The invention can of course be modified. So can ζ-. B. the heating element has a shape deviating from the illustrated Have shape and z. B. by a cylindrical part provided with a helical conductor or by one provided with a spiral conductor flat part can be formed, etc. The tube can also have a shape deviating from the shape shown. Finally, the illuminated sign can be activated by another signaling device be replaced, e.g. B. by a relay with two positions, an acoustic signal, etc. "

- patent claims -

909809/0048

Claims (1)

Claims Coffee machine with a container, on the bottom of which a heating chamber is arranged, in the vicinity of which there is a heating element, this chamber being covered by a bell-shaped part which is extended on its top by a line. _: is that opens into the upper part of the container,. and with this heating chamber covered by the bell. the interior of the container through openings in communication, characterized in that it contains a filter (11) which the coffee. absorbs powder and this filter substantially ._- occupies the entire upper area of the container and that its substantially vertical walls (12) are in "the vicinity of the walls of the container and which at its lower area a support plate (14) 'or the like *, which is provided with an opening (15) and forms frustoconical walls which adapt exactly to the upper walls of the bell (5) covering the heating chamber (3) and thus rest there. Coffee machine according to claim .1, characterized in that the heating element is formed by a metal body .... (7) having embedded in its mass electrical conductor (8) _$ wherein the heating element at least partially surrounds the heating chamber (3) and the metal body preferably has the shape of an upwardly open cone which surrounds the lower, also conical y.md (4) of the heating chamber (3) _f .. 909809/0 (14 ^ 5. Coffee machine according to one or more of the preceding Claims, characterized in that the . Metal body (7) arranged at the bottom of the container (T) and lies in a shell (19) or the like lying in the extension of the container (1). 4. Coffee machine according to one or more of the preceding Claims, characterized in that the. Shell (19) preferably made of an insulating -. Molding compound consists " 5. ■ 'coffee machine-according to one or more of the preceding Claims, characterized in that the substantially vertical walls of the filter (11) through a metal mesh, a perforated sheet or Like. Are formed. 6. Coffee machine according to one or more of the preceding Claims, characterized in that the filter (11) in its upper area by a, removable lid (16} 'closable, which ■ at the same time as the top perimeter of the container (1) is engaged. "''^;' 7. Coffee machine according to one or more of the preceding Claims, characterized in that the cover (16) has the shape of an upward has open cone, the tip of which substantially coincides with the axis of the line (10) about ^. July 16, 1968/325 909 80 ^ / 0048