CA2039026A1 - Automatic appliance for instant coffee and process for the operation of same - Google Patents
Automatic appliance for instant coffee and process for the operation of sameInfo
- Publication number
- CA2039026A1 CA2039026A1 CA002039026A CA2039026A CA2039026A1 CA 2039026 A1 CA2039026 A1 CA 2039026A1 CA 002039026 A CA002039026 A CA 002039026A CA 2039026 A CA2039026 A CA 2039026A CA 2039026 A1 CA2039026 A1 CA 2039026A1
- Authority
- CA
- Canada
- Prior art keywords
- pressure chamber
- coffee
- automatic appliance
- piston
- thrust piece
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J31/00—Apparatus for making beverages
- A47J31/24—Coffee-making apparatus in which hot water is passed through the filter under pressure, i.e. in which the coffee grounds are extracted under pressure
- A47J31/34—Coffee-making apparatus in which hot water is passed through the filter under pressure, i.e. in which the coffee grounds are extracted under pressure with hot water under liquid pressure
- A47J31/36—Coffee-making apparatus in which hot water is passed through the filter under pressure, i.e. in which the coffee grounds are extracted under pressure with hot water under liquid pressure with mechanical pressure-producing means
- A47J31/3604—Coffee-making apparatus in which hot water is passed through the filter under pressure, i.e. in which the coffee grounds are extracted under pressure with hot water under liquid pressure with mechanical pressure-producing means with a mechanism arranged to move the brewing chamber between loading, infusing and ejecting stations
- A47J31/3609—Loose coffee being employed
- A47J31/3619—Means to remove coffee after brewing
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J31/00—Apparatus for making beverages
- A47J31/24—Coffee-making apparatus in which hot water is passed through the filter under pressure, i.e. in which the coffee grounds are extracted under pressure
- A47J31/34—Coffee-making apparatus in which hot water is passed through the filter under pressure, i.e. in which the coffee grounds are extracted under pressure with hot water under liquid pressure
- A47J31/36—Coffee-making apparatus in which hot water is passed through the filter under pressure, i.e. in which the coffee grounds are extracted under pressure with hot water under liquid pressure with mechanical pressure-producing means
- A47J31/3604—Coffee-making apparatus in which hot water is passed through the filter under pressure, i.e. in which the coffee grounds are extracted under pressure with hot water under liquid pressure with mechanical pressure-producing means with a mechanism arranged to move the brewing chamber between loading, infusing and ejecting stations
- A47J31/3609—Loose coffee being employed
- A47J31/3614—Means to perform transfer from a loading position to an infusing position
Abstract
Abstract An automatic appliance for instant coffee com-prises a pressure chamber (10) for preparing the coffee, this pressure chamber having a closing/opening element (20) for introducing and eliminating the coffee powder and at least one adjustable moveable wall (31) defining the volume of the chamber, a hot-water or steam supply conduit and a coffee outlet conduit, and control means determining a position of the moveable wall (31) and the quantity of water and coffee. The pressure chamber (10) is expandable at the moment of injection of hot water or steam, particularly in that the wall (31) is the head of a piston mounted on springs which are compressed under the pressure of the hot water or steam.
Proposed figure: Figure 2
Proposed figure: Figure 2
Description
~039026 Automatic appliance for instant coffee and process for the operation of this The present invention relates to an automatic appliance for instant coffee, comprising a pressure chamber for preparing the coffee, this pressure chamber having a closing~opening element for introducing and eliminating the coffee powder and at least one adjustable moveable wall defining the volume of the chamber, a water supply conduit and a coffee outlet conduit, and control means determining a po~ition of the moveable wall and the quantity of water and coffee. It also relates to a process for the operation of such an appliance.
~here are known coffee machines, in which a cylinder/piston assembly compresses ground coffee in a cylindrical pressure chamber, the pressure being exerted by the head of the piston, itself actuated by a motor, cam or other method. Such machines are described, for example, in European Patent Application EP-A-0,073,739.
The disadvantage of these machines is that the pressure chamber thus defined presents only a fixed volume at the moment of in~ection of hot water or steam.
In this fixed volume, the water or steam does not circu-late perfectly through the mass of ground coffee and cannot draw all the aroma from it.
The ob~ect of the invention is to overcome this disadvantage by providing, in such an automatic appliance, a pressure chamber, one characteristic of which is that it is expandable at the moment of in~ection of hot water or steam.
The advantage affarded is a bettqr impregnation of the coffee powder by the hot water or steam and therefore a coffee of higher quality.
In an advantageous embodiment of the invention, the pressure chamber comprises a cylinder/piston assembly, the moveable wall consisting of the head of the piston and the expansion of the chamber being obtained as a result of the retraction of the head of the piston.
Preferably, this pi~ton has a widened base sliding on at ~()39026 least one guide column parallel to the axis of the cylinder, the widened base is coupled by elastic con-nection means to a thrust piece sliding on the same guide column or guide column~ as the widened base, stop means lLmit the spacing between the thrust piece and the widened base, and the position of the thrust piece is determined by a rotationally moveable screw/rotationally stationary nut system, the nut being integral with the thrust piece and the screw being parallel to the axis of the cylinder.
In another embodiment, the elastic connection means consist of one or more springs and the widened base and the thrust piece are rectangular plates of the same dimensions and have at least one blind hole designed for receiving the spring or springs. The closing/opening element can comprise a flange pivoting about an axis parallel to the axis of the cylinder, and the outlet conduit for the liquid coffee is arranged in the pivoting flange.
In another embodiment, the hot-water or steam supply conduit opens into the moveable wall of the pressure chamber; arranged in the piston and its widened base is a blind hole intended to allow the screw to pass through when the piston is in the position of maximum retraction; the means for driving the closing/opening element and for driving the screw comprise motors grouped side by side.
In this last advantageous embodiment of the invention, the overall size of the machine is reduced as a result of the three characteristics, more specifically:
- the location of the hot-water or steam supply in the piston head coming under pressure up against the ground coffee makes it po~ible to limit the height of the appliance;
- the blind hole made in the piston and its widened base for partially inserting there the screw of the screw/nut system makes it possible to save the height occupied by some of the space taken up by the screw/nut system;
- by grouping the means for driving the screw on the one ' ,: :
- :
~0;~9~)26 hand and for driving the closing/opening element rep-resented by a pivoting flange on the other hand side by side at the bottom of the appliance, greater access to the other parts of the appliance is obtained.
S The invention also relates to an operating process for such an automatic appliance, in which coffee powder is introduced into the pre~sure chamber, after which the chamber is closed and the coffee powder is compressed by the moveable wall of the pressure chamber before the in~ection of hot water or steam and the flow-off of liquid coffee, defined in that the control means determine the position of the thrust piece, the position of the moveable wall of the pressure chamber being determined both by the position of the thrust piece and by the pressure prevailing in the pressure chamber, allowing an expansion of the volume of the pressure chamber at the moment of in~ection of hot water or steam.
A preferred embodiment of the appliance and its - operation are described below with reference to the accompanying drawings in which:
- Figure 1 shows the appliance ready for operation, - Figure 2 shows the step of the compression of the coffee, before the in~ection of hot water;
- Figure 3 show~ a step of e~ecting the used coffee cake;
- Figure 4 shows, in a side view of the appliance, the position of the hot water or steam supply and coffee outlet conduits.
In Figure 1, the appliance is ready for operation. The pivoting flange 20 is in the open position, exposing the entrance of the pressure chamber 10 to allow the intake of ground coffee; the piston 30 is in the position of maximum retraction, maximizing the volume of the pressure chamber 10.
When the user orders one or t~o CUp8 of coffee from the control panel (not shown), the control means (not shown) release an appropriate quantity of ground coffee, poured into the pressure chamber 10, via a nozzle (not shown) openinq out above the pressure chamber 10.
The flange 20 pivots into the closed position, shutting 4 20;~9026 off the pressure chamber 10, a~ shown in Figure 2.
Control means known per se determine the total stroke of a thrust piece represented by a plate 42 sliding on stationary columns 43O The displacement of this plate 42 depends, by way of a screw~nut system, on the angle of rotation of a screw 40 actuated by driving means 38 coupled to an electric motor (not shown~. This angle is adjusted as a function of various parameters, particularly the selected number of cups, the grinding and nature of the coffee and the desired flow-off speed;
the nut 41 integral with the plate 42 converts this angle of rotation into a displacement parallel to the axis 34 of a cylinder and to the columns 43. A blind hole 36 arranged in the piston 30 i~ provided, into which the screw 40 is partially inserted. The position of the widened base of the piston 30, represented by a plate 32, is determined by that of th0 plate 42 and by the com-pression of the springs 50 arranged in blind holes 53 made in the plates 32 and 42. The relative spacing of the plates 42 and 32 is limited by the stop means consisting of shoulders 52 of stop screws 51. The position of the moveable wall 31 of the pressure chamber, represented by the head of the piston 30 fixed to the plate 32, is determined so as to exert a specific pressure on the coffee which is thus compacted into a cake 33. During the injection of hot water or steam under pressure via the conduit 23 and the flow-off of the coffee via the outlet conduit 22, both of which can be seen in Figure 4, the wall 31 is capable of retracting together with the plate 32, compressing the springs 50 a little more and thus ensuring the desired expansion of the pressure container containing the coffee cake 33.
After the cups have been filled and the in~ection of hot water or steam has ceased, the control means cause the plate 42 and indirectly the wall 31 of the pressure chamber to retract slightly, in order to reduce the pressure exerted on the working face 21 of the flange 20 by way of the coffee cake 33; the flange 20 pivots into the open position, and according to Figure 3 the wall 31 _ 5 _ ~039026 of the pressure chamber advances as far as the position previously occupied by the working face 21 of the flange, thus expelling the cake 33 of spent ground coffee, the flange 20 pivots into the closed position, at the same time scraping the wall 31 of the pressure chamber, thus removing the cake 33 of spent ground coffee, and then returns to the open position, and the wall 31 of the pressure chamber retracts to its maximum extent, the machine thus being ready once again for operation, as in Figure 1.
By grouping the means 37, 38, actuated by electric motors (not shown), for driving the screw 40 on the one hand and the pivoting flange 20 on the other hand side by side at the bottom of the appliance, greater acces~ to the other parts of the appliance is obtained.
It goes without saying that the invention is not limited by the exemplary embodiments described.
~here are known coffee machines, in which a cylinder/piston assembly compresses ground coffee in a cylindrical pressure chamber, the pressure being exerted by the head of the piston, itself actuated by a motor, cam or other method. Such machines are described, for example, in European Patent Application EP-A-0,073,739.
The disadvantage of these machines is that the pressure chamber thus defined presents only a fixed volume at the moment of in~ection of hot water or steam.
In this fixed volume, the water or steam does not circu-late perfectly through the mass of ground coffee and cannot draw all the aroma from it.
The ob~ect of the invention is to overcome this disadvantage by providing, in such an automatic appliance, a pressure chamber, one characteristic of which is that it is expandable at the moment of in~ection of hot water or steam.
The advantage affarded is a bettqr impregnation of the coffee powder by the hot water or steam and therefore a coffee of higher quality.
In an advantageous embodiment of the invention, the pressure chamber comprises a cylinder/piston assembly, the moveable wall consisting of the head of the piston and the expansion of the chamber being obtained as a result of the retraction of the head of the piston.
Preferably, this pi~ton has a widened base sliding on at ~()39026 least one guide column parallel to the axis of the cylinder, the widened base is coupled by elastic con-nection means to a thrust piece sliding on the same guide column or guide column~ as the widened base, stop means lLmit the spacing between the thrust piece and the widened base, and the position of the thrust piece is determined by a rotationally moveable screw/rotationally stationary nut system, the nut being integral with the thrust piece and the screw being parallel to the axis of the cylinder.
In another embodiment, the elastic connection means consist of one or more springs and the widened base and the thrust piece are rectangular plates of the same dimensions and have at least one blind hole designed for receiving the spring or springs. The closing/opening element can comprise a flange pivoting about an axis parallel to the axis of the cylinder, and the outlet conduit for the liquid coffee is arranged in the pivoting flange.
In another embodiment, the hot-water or steam supply conduit opens into the moveable wall of the pressure chamber; arranged in the piston and its widened base is a blind hole intended to allow the screw to pass through when the piston is in the position of maximum retraction; the means for driving the closing/opening element and for driving the screw comprise motors grouped side by side.
In this last advantageous embodiment of the invention, the overall size of the machine is reduced as a result of the three characteristics, more specifically:
- the location of the hot-water or steam supply in the piston head coming under pressure up against the ground coffee makes it po~ible to limit the height of the appliance;
- the blind hole made in the piston and its widened base for partially inserting there the screw of the screw/nut system makes it possible to save the height occupied by some of the space taken up by the screw/nut system;
- by grouping the means for driving the screw on the one ' ,: :
- :
~0;~9~)26 hand and for driving the closing/opening element rep-resented by a pivoting flange on the other hand side by side at the bottom of the appliance, greater access to the other parts of the appliance is obtained.
S The invention also relates to an operating process for such an automatic appliance, in which coffee powder is introduced into the pre~sure chamber, after which the chamber is closed and the coffee powder is compressed by the moveable wall of the pressure chamber before the in~ection of hot water or steam and the flow-off of liquid coffee, defined in that the control means determine the position of the thrust piece, the position of the moveable wall of the pressure chamber being determined both by the position of the thrust piece and by the pressure prevailing in the pressure chamber, allowing an expansion of the volume of the pressure chamber at the moment of in~ection of hot water or steam.
A preferred embodiment of the appliance and its - operation are described below with reference to the accompanying drawings in which:
- Figure 1 shows the appliance ready for operation, - Figure 2 shows the step of the compression of the coffee, before the in~ection of hot water;
- Figure 3 show~ a step of e~ecting the used coffee cake;
- Figure 4 shows, in a side view of the appliance, the position of the hot water or steam supply and coffee outlet conduits.
In Figure 1, the appliance is ready for operation. The pivoting flange 20 is in the open position, exposing the entrance of the pressure chamber 10 to allow the intake of ground coffee; the piston 30 is in the position of maximum retraction, maximizing the volume of the pressure chamber 10.
When the user orders one or t~o CUp8 of coffee from the control panel (not shown), the control means (not shown) release an appropriate quantity of ground coffee, poured into the pressure chamber 10, via a nozzle (not shown) openinq out above the pressure chamber 10.
The flange 20 pivots into the closed position, shutting 4 20;~9026 off the pressure chamber 10, a~ shown in Figure 2.
Control means known per se determine the total stroke of a thrust piece represented by a plate 42 sliding on stationary columns 43O The displacement of this plate 42 depends, by way of a screw~nut system, on the angle of rotation of a screw 40 actuated by driving means 38 coupled to an electric motor (not shown~. This angle is adjusted as a function of various parameters, particularly the selected number of cups, the grinding and nature of the coffee and the desired flow-off speed;
the nut 41 integral with the plate 42 converts this angle of rotation into a displacement parallel to the axis 34 of a cylinder and to the columns 43. A blind hole 36 arranged in the piston 30 i~ provided, into which the screw 40 is partially inserted. The position of the widened base of the piston 30, represented by a plate 32, is determined by that of th0 plate 42 and by the com-pression of the springs 50 arranged in blind holes 53 made in the plates 32 and 42. The relative spacing of the plates 42 and 32 is limited by the stop means consisting of shoulders 52 of stop screws 51. The position of the moveable wall 31 of the pressure chamber, represented by the head of the piston 30 fixed to the plate 32, is determined so as to exert a specific pressure on the coffee which is thus compacted into a cake 33. During the injection of hot water or steam under pressure via the conduit 23 and the flow-off of the coffee via the outlet conduit 22, both of which can be seen in Figure 4, the wall 31 is capable of retracting together with the plate 32, compressing the springs 50 a little more and thus ensuring the desired expansion of the pressure container containing the coffee cake 33.
After the cups have been filled and the in~ection of hot water or steam has ceased, the control means cause the plate 42 and indirectly the wall 31 of the pressure chamber to retract slightly, in order to reduce the pressure exerted on the working face 21 of the flange 20 by way of the coffee cake 33; the flange 20 pivots into the open position, and according to Figure 3 the wall 31 _ 5 _ ~039026 of the pressure chamber advances as far as the position previously occupied by the working face 21 of the flange, thus expelling the cake 33 of spent ground coffee, the flange 20 pivots into the closed position, at the same time scraping the wall 31 of the pressure chamber, thus removing the cake 33 of spent ground coffee, and then returns to the open position, and the wall 31 of the pressure chamber retracts to its maximum extent, the machine thus being ready once again for operation, as in Figure 1.
By grouping the means 37, 38, actuated by electric motors (not shown), for driving the screw 40 on the one hand and the pivoting flange 20 on the other hand side by side at the bottom of the appliance, greater acces~ to the other parts of the appliance is obtained.
It goes without saying that the invention is not limited by the exemplary embodiments described.
Claims (10)
1. An automatic appliance for instant coffee, comprising a pressure chamber (10) for preparing the coffee, this pressure chamber having a closing/apening element (20) for introducing and eliminating the coffee powder and at least one adjustable moveable wall (31) defining the volume of the chamber, a hot-water or steam supply conduit (23) and a coffee outlet conduit (22), and control means determining a position of the moveable wall (31) and the quantity of water and coffee, wherein the pressure chamber (10) is expandable at the moment of injection of hot water or steam.
2. The automatic appliance as claimed in claim 1, wherein the pressure chamber (10) comprises a cylinder/
piston assembly, the moveable wall (31) consisting of the head of the piston (30) and the expansion of the chamber (10) being obtained as a result of the retraction of the head of the piston (30).
piston assembly, the moveable wall (31) consisting of the head of the piston (30) and the expansion of the chamber (10) being obtained as a result of the retraction of the head of the piston (30).
3. The automatic appliance as claimed in claim 2, wherein the piston (30) has a widened base (32) sliding on at least one guide column (43) parallel to the axis (34) of the cylinder, wherein the widened base (32) is coupled by elastic connection means (50) to a thrust piece (42) sliding on the same guide column or guide columns (43) as the widened base (32), wherein stop means (51, 52) limit the spacing between the thrust piece (42) and the widened base (32), and wherein the position of said thrust piece (42) is determined by a rotationally moveable screw (40)/rotationally stationary nut (41) system, the nut (41) being integral with the thrust piece (42) and the screw (40) being parallel to the axis (34) of the cylinder.
4. The automatic appliance as claimed in claim 3, wherein the elastic connection means (50) are springs, and wherein the widened base (32) and the thrust piece (42) are rectangular plates of the same dimensions and have at least three blind holes (53) designed for receiv-ing the springs.
5. The automatic appliance as claimed in claims 1 to 4, wherein the closing/opening element (20) com-prises a flange pivoting about an axis (35) parallel to the axis (34) of the cylinder.
6. The automatic appliance as claimed in claims l to 5, wherein the coffee outlet conduit (22) is ar-ranged in the closing/opening element (20).
7. The automatic appliance as claimed in claims 1 to 6, wherein the hot-water supply conduit (23) opens into the moveable wall (31) of the pressure chamber.
8. The automatic appliance as claimed in claims 2 to 7, wherein arranged in the piston (30) and its widened base (32) is a blind hole (36) intended to allow the screw (40) to pass through when the piston (30) is in the position of maximum retraction.
9. The automatic appliance as claimed in claims 5 to 8, wherein the means for driving the closing/opening element (20) and for driving the screw (40) comprise motors grouped side by side.
10. An operating process for the automatic appliance as claimed in claims 1 to 9, in which coffee powder is introduced into the pressure chamber (10), the chamber is closed, and the coffee powder is compressed by the moveable wall (21) of the pressure chamber before the injection of hot water or steam and the flow-off of liquid coffee, wherein the control means determine the position of the thrust piece (32), the position of the moveable wall (21) of the pressure chamber (10) being determined both by the position of the thrust piece (32) and by the pressure prevailing in the pressure chamber, allowing an expansion of the volume of the pressure chamber at the moment of injection of hot water or steam.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP90200810.1 | 1990-04-04 | ||
| EP90200810A EP0450200B1 (en) | 1990-04-04 | 1990-04-04 | Automatic assembly for espresso coffee and method of operating the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2039026A1 true CA2039026A1 (en) | 1991-10-05 |
Family
ID=8204987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002039026A Abandoned CA2039026A1 (en) | 1990-04-04 | 1991-03-25 | Automatic appliance for instant coffee and process for the operation of same |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP0450200B1 (en) |
| JP (1) | JPH04224718A (en) |
| AT (1) | ATE100688T1 (en) |
| CA (1) | CA2039026A1 (en) |
| DE (1) | DE69006350T2 (en) |
| ES (1) | ES2048410T3 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2804002B1 (en) | 2000-01-24 | 2002-07-05 | Unic | GROUP FOR THE MANUFACTURE OF BEVERAGES BY INFUSION AND MACHINE INCORPORATING THE SAME |
| IT1316751B1 (en) * | 2000-12-27 | 2003-05-12 | Piccioni Altero | FILTER HOLDER LOADER FOR ESPRESSO COFFEE MACHINES |
| DE102004023964B3 (en) * | 2004-05-14 | 2006-01-19 | HGZ Maschinenbau AG, Dällikon | The automated coffee machine |
| DE102019119103A1 (en) | 2019-07-15 | 2021-01-21 | Melitta Professional Coffee Solutions GmbH & Co. KG | Brewing unit of a coffee machine |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1305179A (en) * | 1961-11-10 | 1962-09-28 | Hydraulic compression unit for coffee machine, intended to improve the brewing conditions of powdered coffee | |
| IT1010946B (en) * | 1974-04-11 | 1977-01-20 | Imd Spa | AUTOMATIC INFUSER GROUP FOR INSTANTANEOUS PREPARATION OF HOT DRINKS IN PARTICULAR ESPRES SO COFFEE |
| IT214297Z2 (en) * | 1987-12-22 | 1990-05-03 | Zanussi Grandi Impianti Spa | ESPRESSO, IN VARIABLE DOSES. AUTOMATIC INFUSER GROUP FOR INSTANT PREPARATION OF HOT DRINKS, IN PARTICULAR COFFEE |
-
1990
- 1990-04-04 ES ES90200810T patent/ES2048410T3/en not_active Expired - Lifetime
- 1990-04-04 AT AT90200810T patent/ATE100688T1/en not_active IP Right Cessation
- 1990-04-04 DE DE90200810T patent/DE69006350T2/en not_active Expired - Fee Related
- 1990-04-04 EP EP90200810A patent/EP0450200B1/en not_active Expired - Lifetime
-
1991
- 1991-03-25 CA CA002039026A patent/CA2039026A1/en not_active Abandoned
- 1991-04-03 JP JP3071149A patent/JPH04224718A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| EP0450200A1 (en) | 1991-10-09 |
| DE69006350D1 (en) | 1994-03-10 |
| ATE100688T1 (en) | 1994-02-15 |
| EP0450200B1 (en) | 1994-01-26 |
| JPH04224718A (en) | 1992-08-14 |
| DE69006350T2 (en) | 1994-05-11 |
| ES2048410T3 (en) | 1994-03-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4796521A (en) | Compact automatic coffee-making machine more particularly for domestic use | |
| US6253664B1 (en) | Brewing unit for automatic beverage dispensers | |
| CA1280616C (en) | Automatic machine for preparing espresso coffee | |
| US5255594A (en) | Automatic coffee-making machine with direct-current motor drive and worm screws | |
| EP1121882B1 (en) | Automatic unit for preparing espresso coffee | |
| EP1267686B1 (en) | Drive for a coffee making device | |
| US5526733A (en) | Brewing device for a household expresso coffee machine | |
| US4579049A (en) | Coffee percolator | |
| ES2191503A1 (en) | Juice extractor with hydraulic control of extraction back pressure | |
| AU2001284102B2 (en) | Percolator unit with mobile infusion chamber and detachable without using tools | |
| AU2018241173A1 (en) | Apparatus to prepare beverages | |
| CA2039026A1 (en) | Automatic appliance for instant coffee and process for the operation of same | |
| US6745668B2 (en) | Unit for making beverages by brewing and machine incorporating same | |
| JP4222832B2 (en) | Coffee machine | |
| US5083503A (en) | Method and an apparatus for making a beverage such as coffee, soup,tea, cocoa or the like | |
| US4667586A (en) | Beverage brewing apparatus for a vending machine | |
| EP4014801B1 (en) | Brewing device for preparing beverages | |
| CN212878943U (en) | Brewing equipment and beverage machine | |
| US20230180960A1 (en) | Motorized brewing unit | |
| CN212346234U (en) | Brewing equipment and beverage machine | |
| CN212346237U (en) | Brewing equipment and beverage machine | |
| EP4167808A1 (en) | A brewing unit | |
| CN111759173A (en) | Brewing equipment and beverage machine | |
| WO2008006760A2 (en) | Super automatic machine for brewing coffee or espresso | |
| ITVB20000001U1 (en) | AUTOMATIC HYDRAULIC OPERATING GROUP PARTICULARLY SUITABLE FOR THE PRODUCTION OF ESPRESSO COFFEE AND OTHER EVENTUAL BEVERAGES |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Discontinued |