US20050279217A1 - Coffee-maker - Google Patents
Coffee-maker Download PDFInfo
- Publication number
- US20050279217A1 US20050279217A1 US11/196,432 US19643205A US2005279217A1 US 20050279217 A1 US20050279217 A1 US 20050279217A1 US 19643205 A US19643205 A US 19643205A US 2005279217 A1 US2005279217 A1 US 2005279217A1
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- United States
- Prior art keywords
- coffee
- lid
- maker
- chamber
- rising pipe
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- 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.)
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- 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
- A47J31/30—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 steam pressure
- A47J31/303—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 steam pressure classical type of espresso apparatus, e.g. to put on a stove, i.e. in which the water is heated in a lower, sealed boiling vessel, raised by the steam pressure through a rising pipe and an extraction chamber and subsequently is collected in a beverage container on top of the water boiling vessel
- A47J31/306—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 steam pressure classical type of espresso apparatus, e.g. to put on a stove, i.e. in which the water is heated in a lower, sealed boiling vessel, raised by the steam pressure through a rising pipe and an extraction chamber and subsequently is collected in a beverage container on top of the water boiling vessel with integral electrical heating means
Definitions
- the present invention relates to a coffee-maker. More specifically, the invention relates to a coffee-maker with the features of the introductory portion of claim 1 .
- Coffee-makers of the kind referred to in the introduction are common. From U.S. Pat. No. 5,894,785, for example, an espresso-maker such as in its basic construction has been used in households for many years is known. Water is made to boil in a lower chamber and is then, owing to the pressure which is developed, conducted through a brewing insert containing coffee powder. The coffee produced is conducted through a rising pipe, which has lateral openings at its upper end, into an upper chamber and accumulates there.
- a splash guard which covers the at least one opening of the rising pipe laterally when the lid is closed, is present on the lid. Lateral splashing of the coffee is thus avoided. This reduces the dirtying of the lid and moreover increases safety, as no splashes, which can lead to dangerous scalds, can come out between the lid and the upper part of the coffee-maker.
- the splash guard is provided on the lid, the openings of the rising pipe remain easily accessible for cleaning purposes when the lid is open, and the splash guard itself can also be cleaned easily. This is important in particular also because unremoved coffee residues impair the flavour of subsequent preparations.
- a number of radial openings in particular two openings lying radially opposite one another, are preferably present in the upper end region of the rising pipe. Optimum flow of the coffee is thus ensured.
- the splash guard is designed as a ring.
- the height of the ring is then selected in such a way that it extends at least to the lower edge of the openings when the lid is closed.
- the lid is preferably articulated pivotably on the upper part. Moreover, the lid is preferably designed so as to be removable from the upper part, in order to simplify cleaning.
- Observation of the brewing process is made possible if the lid and/or the upper part are/is at least partly transparent. Moreover, transparent parts make easy checking of cleaning possible.
- the provision of a splash guard on the lid is especially advantageous then as in this case splashes are especially inconvenient and obstruct observation of the brewing process.
- the lid and/or the upper part are/is made at least partly of polycarbonate.
- This plastic is not only transparent but also especially resistant to heat and ageing, breakproof and impact-resistant.
- the coffee-maker can furthermore have a lower part with a lower chamber for receiving water and also a brewing insert for receiving ground coffee.
- the lower part, the brewing insert and the upper part are arranged in such a way that water can pass from the lower chamber through the brewing insert into the upper chamber.
- the lower part comprises a safety valve which is arranged close to the upper end of the lower part.
- the upper part then preferably has an apron which is suitable for covering the safety valve. In this way, scalds caused by steam or hot water coming out laterally are avoided.
- FIG. 1 shows a perspective view of an espresso-maker
- FIG. 2 shows an espresso-maker in cross section along the line II-II
- FIG. 3 shows a detailed view of the upper region of an espresso-maker in cross section along the line III-III, and
- FIG. 4 shows a perspective view of a lid for an espresso-maker.
- FIGS. 1 and 2 show an electrically operated espresso-maker in a perspective view and in cross section respectively as an example of a coffee-maker according to the invention.
- An upper part 10 with an upper chamber is screwed onto a lower part 20 with a lower chamber for receiving water. Inserted into the lower part 20 is a brewing insert 50 which extends into the lower chamber.
- the upper chamber is closed by a lid 30 .
- a handle 40 is also provided on the upper part 10 .
- the lower part 20 stands on a base plate 60 .
- the essentially round base plate 60 has a connection cable 61 in order to supply electric power.
- the cable 61 is connected electrically to a central, upwardly extending connection element 62 .
- contact elements 27 which interact with the connection element 62 in order to supply power to a heating element 26 in the form of a heating coil.
- the contacts are arranged in such a way that the lower part 20 can easily be removed from the base plate 60 , the contacts being separated.
- the heating element 26 serves for heating water located in the lower chamber.
- the power supply is switched on and off by means of a switch 25 . Additionally provided is an overheating protection means, which interrupts the power supply if necessary.
- the lower part 20 is delimited laterally by a side wall 21 which is adjoined by an essentially cylindrical connection piece 22 with an external thread 28 .
- a safety valve (pressure relief valve) 23 is inserted into the connection piece 22 just below the external thread 28 .
- the lower part 20 has a circular opening for receiving the brewing insert 50 .
- the lower part 20 is preferably made from stainless steel. However, other materials which are sufficiently breakproof, impact-resistant and heat-resistant are also suitable, for example aluminium or heatproof plastics.
- the brewing insert 50 is constructed according to known principles. It comprises an upper region 51 for receiving ground coffee. This region is closed towards the bottom by a strainer 52 . A funnel-shaped transition region 53 is adjoined towards the bottom by a pipe 54 which extends vertically into the lower chamber in the lower part 20 .
- the brewing insert 50 also is preferably made from stainless steel or another metal.
- the upper chamber in the upper part 10 is delimited by a side wall 11 and a bottom 13 . From the side wall 11 , an apron 12 extends downwards in a region below the bottom 13 . Machined into the apron 12 is an internal thread 16 which interacts with the external thread 28 of the connection piece 22 . A handle 40 is fastened to the upper part. A pourer 18 is formed at the upper edge of the upper part 10 .
- the apron 12 extends so far downwards that it covers the pressure relief valve 23 when the upper part 10 is screwed onto the lower part 20 .
- the apron 12 is widened slightly in the lower region in relation to the internal thread 16 so that this region can without difficulty be pushed over the external thread 28 of the connection piece 22 and has a certain spacing radially from the safety valve 23 after the upper part 10 has been screwed onto the lower part 20 .
- Steam which, if necessary, escapes through the safety valve 23 is thus diverted downwards between the valve 23 and the apron 12 and can come out downwardly (essentially vertically). This prevents a steam jet under high pressure escaping radially (horizontally) and scalding a user of the espresso-maker.
- a safety valve is as a rule arranged further down, in the actual side wall of the lower part. It is possible then inadvertently to fill the lower chamber so full of water that the inner side of the safety valve is covered by water. In the event of overpressure arising, hot water under pressure can escape in such a case, which can lead to dangerous scalds. With the valve 23 being arranged directly below the thread 28 in the connection piece 22 , this danger is largely avoided. Furthermore, a harmonious appearance is achieved by virtue of the safety valve 23 being covered by the apron 12 and not being located visually disturbingly in the side wall 21 .
- a strainer insert 16 Located below the bottom 13 of the upper part 10 is a strainer insert 16 which is held in position by a flat rubber ring 17 .
- a strainer insert with rubber ring is known in principle from commercially available espresso-makers. It serves to close the brewing insert 50 towards the top and to retain the coffee powder in the brewing insert 50 during brewing.
- the bottom 13 of the upper part 10 has a central opening, from which a rising pipe 14 extends vertically upwards.
- the rising pipe 14 is connected to the upper part 10 and preferably formed in one piece with it. It has an upwardly slightly tapering design and thus has essentially the shape of a truncated cone.
- the rising pipe 14 is closed in the axial direction, that is towards the top, while it has two opposite openings 15 in the radial direction, that is laterally, at its upper end.
- FIG. 3 clarifies the arrangement and shape of the openings 15 further, illustrating them from a different viewing direction to that in FIG. 2 .
- a lid 30 Articulated on the upper part 10 is a lid 30 , which is additionally illustrated in a perspective view in FIG. 4 .
- the lid 30 can be pivoted about a horizontal axis between an open and a closed position.
- the lid 30 serves to close the upper chamber 10 towards the top.
- a splash guard 34 in the form of a ring is formed centrally on the inner side of the lid 30 .
- This guard is dimensioned in such a way that it covers the openings 15 of the rising pipe 14 in the closed position of the lid 30 .
- the splash guard 34 extends at least to the lower edge of the openings 15 of the rising pipe 14 in the closed position of the lid 30 .
- the lid 30 has a region 31 which is curved inwardly, that is in the direction of the rising pipe 14 .
- This curvature of the lid 30 leads to the inner lid region, which is located inside the splash guard 34 , coming to lie directly above the upper end of the rising pipe 14 when the lid is closed.
- the curvature of the lid 30 thus makes it possible to keep the splash guard 34 short. This is desirable for aesthetic reasons but also for reasons of simple cleaning.
- the outer edge 35 of the lid 30 is towards the bottom designed in such a way that it comes to lie partly inside the side wall 11 of the upper part 10 in the closed state.
- an extension 32 is formed on the outer edge 35 of the lid 30 in the form of two parallel hooks with reinforcements 36 extending inwards from the outer edge 35 , which extension, together with a corresponding counterpart in the upper part 10 and a pin fastened therein, serves as a hinge. As the hooks are open at an angle upwards, the lid 30 can be removed easily from the upper part 10 in the open position.
- a central gripping knob 33 is provided on the upper side of the lid 30 . This knob is pushed onto a pin 37 formed in one piece with the lid 30 and connected to it, for example by pressing, adhesive bonding or welding.
- the upper part 10 and/or the lid 30 are/is preferably made from a clear, transparent plastic.
- Polymethyl methacrylate in particular which is also known by the trade name Plexiglas®, is suitable.
- manufacture from other, not necessarily transparent materials is also possible, for example from other heatproof and impact-resistant plastics or from stainless steel, aluminium or other metals.
- the lid 30 is preferably manufactured in an injection-moulding or die-casting process, as is the upper part 10 .
- the splash guard is preferably formed in one piece with the lid 30 .
- the pin 37 too and the extension 32 as well are preferably formed in one piece with the lid 30 .
- the splash guard 34 As the splash guard covers the openings 15 , the espresso coming out is diverted downwards and runs downwards on the exterior of the rising pipe 14 , to accumulate in the upper chamber. In particular when the lid 30 is transparent, the preparation of the espresso can be observed through the lid 30 undisturbed by splashing espresso.
- the openings 15 are preferably roughly 2 to 6 millimetres high and 3 to 8 millimetres wide.
- the splash guard extends roughly 4 to 10 millimetres downwards from the inner side of the lid 30 .
- the splash guard is preferably located at a spacing of 2 to 6 millimetres from the openings 15 in order to allow a sufficient gap.
- the precise dimensions depend on the overall dimensions of the espresso-maker.
- the coffee-maker does not have to be electrically operated but can be intended for conventional heating of the water on a hot plate or on an open flame.
- Such a coffee-maker can also be suitable for use in a microwave oven if appropriate materials are selected, for example if metal parts are largely excluded.
- the outer shapes, for example, of the lower part 20 and of the upper part 10 can be changed.
- the shape in plan view can also be polygonal, for example hexagonal, octagonal or dodecagonal, instead of essentially circular.
- the rising pipe does not have to be round in plan view either, but can have any other shape. More or fewer than two openings, for example one, three, four, five or six, can also be present at the upper end of the rising pipe.
- a construction other than the construction described is also possible.
- coffee-makers for instance, in which water is made to boil in a lower chamber and, owing to the boiling pressure, is conducted through a rising pipe into an upper chamber without passing through a brewing chamber.
- the coffee powder is then usually located directly in the upper chamber and is not brought into contact with the water until it arrives there.
- a strainer with a plurality of small openings is usually present between the upper and lower chambers.
- a vacuum is created, which sucks the ready coffee through the strainer into the lower chamber, while the leached coffee grounds are retained.
- a splash guard as provided in the present invention is advantageous in such a coffee-maker as well.
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Apparatus For Making Beverages (AREA)
Abstract
A coffee-maker is disclosed. It comprises a lid (30) which closes an upper part (10) with an upper chamber. A rising pipe (14) extends into the upper chamber. This pipe has at least one lateral opening (15) in an upper end region. In order to avoid splashing of liquid coming out of the rising pipe (14), a downwardly extending splash guard (34) is present on the lid (30), which guard covers the at least one opening (15) of the rising pipe (14) laterally when the lid (30) is closed.
Description
- The present invention relates to a coffee-maker. More specifically, the invention relates to a coffee-maker with the features of the introductory portion of claim 1.
- Coffee-makers of the kind referred to in the introduction are common. From U.S. Pat. No. 5,894,785, for example, an espresso-maker such as in its basic construction has been used in households for many years is known. Water is made to boil in a lower chamber and is then, owing to the pressure which is developed, conducted through a brewing insert containing coffee powder. The coffee produced is conducted through a rising pipe, which has lateral openings at its upper end, into an upper chamber and accumulates there.
- In coffee-makers of this kind, the problem arises that the coffee coming out of the rising pipe comes out of the openings uncontrolledly and in doing so dirties in particular the lid of the coffee-maker and may even force its way out.
- It is an object of the present invention to provide a coffee-maker which reduces the splashing of the lid.
- This object is achieved by a coffee-maker with the features of claim 1.
- Accordingly, a splash guard, which covers the at least one opening of the rising pipe laterally when the lid is closed, is present on the lid. Lateral splashing of the coffee is thus avoided. This reduces the dirtying of the lid and moreover increases safety, as no splashes, which can lead to dangerous scalds, can come out between the lid and the upper part of the coffee-maker. As the splash guard is provided on the lid, the openings of the rising pipe remain easily accessible for cleaning purposes when the lid is open, and the splash guard itself can also be cleaned easily. This is important in particular also because unremoved coffee residues impair the flavour of subsequent preparations.
- A number of radial openings, in particular two openings lying radially opposite one another, are preferably present in the upper end region of the rising pipe. Optimum flow of the coffee is thus ensured.
- In an advantageous embodiment, the splash guard is designed as a ring. The height of the ring is then selected in such a way that it extends at least to the lower edge of the openings when the lid is closed.
- Manufacturing is simple if the splash guard is designed in one piece with the lid.
- In order to simplify operation, the lid is preferably articulated pivotably on the upper part. Moreover, the lid is preferably designed so as to be removable from the upper part, in order to simplify cleaning.
- Observation of the brewing process is made possible if the lid and/or the upper part are/is at least partly transparent. Moreover, transparent parts make easy checking of cleaning possible. The provision of a splash guard on the lid is especially advantageous then as in this case splashes are especially inconvenient and obstruct observation of the brewing process.
- In an advantageous embodiment, the lid and/or the upper part are/is made at least partly of polycarbonate. This plastic is not only transparent but also especially resistant to heat and ageing, breakproof and impact-resistant.
- The coffee-maker can furthermore have a lower part with a lower chamber for receiving water and also a brewing insert for receiving ground coffee. In this connection, the lower part, the brewing insert and the upper part are arranged in such a way that water can pass from the lower chamber through the brewing insert into the upper chamber.
- In an advantageous embodiment, the lower part comprises a safety valve which is arranged close to the upper end of the lower part. The upper part then preferably has an apron which is suitable for covering the safety valve. In this way, scalds caused by steam or hot water coming out laterally are avoided.
- Autonomous operation of the coffee-maker without external heat sources is advantageously made possible by electrically operated means for heating water being present.
- The invention is described in greater detail below with reference to the drawings, in which
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FIG. 1 shows a perspective view of an espresso-maker; -
FIG. 2 shows an espresso-maker in cross section along the line II-II; -
FIG. 3 shows a detailed view of the upper region of an espresso-maker in cross section along the line III-III, and -
FIG. 4 shows a perspective view of a lid for an espresso-maker. -
FIGS. 1 and 2 show an electrically operated espresso-maker in a perspective view and in cross section respectively as an example of a coffee-maker according to the invention. Anupper part 10 with an upper chamber is screwed onto alower part 20 with a lower chamber for receiving water. Inserted into thelower part 20 is abrewing insert 50 which extends into the lower chamber. The upper chamber is closed by alid 30. Ahandle 40 is also provided on theupper part 10. Thelower part 20 stands on abase plate 60. - The essentially
round base plate 60 has aconnection cable 61 in order to supply electric power. Thecable 61 is connected electrically to a central, upwardly extendingconnection element 62. Provided on thelower part 20 arecontact elements 27 which interact with theconnection element 62 in order to supply power to aheating element 26 in the form of a heating coil. In this regard, the contacts are arranged in such a way that thelower part 20 can easily be removed from thebase plate 60, the contacts being separated. Theheating element 26 serves for heating water located in the lower chamber. The power supply is switched on and off by means of aswitch 25. Additionally provided is an overheating protection means, which interrupts the power supply if necessary. - The
lower part 20 is delimited laterally by aside wall 21 which is adjoined by an essentiallycylindrical connection piece 22 with anexternal thread 28. Let into theconnection piece 22 just below theexternal thread 28 is a safety valve (pressure relief valve) 23. At the upper edge of theconnection piece 22, thelower part 20 has a circular opening for receiving thebrewing insert 50. Thelower part 20 is preferably made from stainless steel. However, other materials which are sufficiently breakproof, impact-resistant and heat-resistant are also suitable, for example aluminium or heatproof plastics. - The
brewing insert 50 is constructed according to known principles. It comprises anupper region 51 for receiving ground coffee. This region is closed towards the bottom by astrainer 52. A funnel-shaped transition region 53 is adjoined towards the bottom by apipe 54 which extends vertically into the lower chamber in thelower part 20. Thebrewing insert 50 also is preferably made from stainless steel or another metal. - The upper chamber in the
upper part 10 is delimited by aside wall 11 and a bottom 13. From theside wall 11, anapron 12 extends downwards in a region below the bottom 13. Machined into theapron 12 is aninternal thread 16 which interacts with theexternal thread 28 of theconnection piece 22. Ahandle 40 is fastened to the upper part. Apourer 18 is formed at the upper edge of theupper part 10. - The
apron 12 extends so far downwards that it covers thepressure relief valve 23 when theupper part 10 is screwed onto thelower part 20. To this end, theapron 12 is widened slightly in the lower region in relation to theinternal thread 16 so that this region can without difficulty be pushed over theexternal thread 28 of theconnection piece 22 and has a certain spacing radially from thesafety valve 23 after theupper part 10 has been screwed onto thelower part 20. Steam which, if necessary, escapes through thesafety valve 23 is thus diverted downwards between thevalve 23 and theapron 12 and can come out downwardly (essentially vertically). This prevents a steam jet under high pressure escaping radially (horizontally) and scalding a user of the espresso-maker. Another advantage derives from thesafety valve 23 being arranged very high up, in an upper edge region of thelower chamber 20. In known espresso-makers, a safety valve is as a rule arranged further down, in the actual side wall of the lower part. It is possible then inadvertently to fill the lower chamber so full of water that the inner side of the safety valve is covered by water. In the event of overpressure arising, hot water under pressure can escape in such a case, which can lead to dangerous scalds. With thevalve 23 being arranged directly below thethread 28 in theconnection piece 22, this danger is largely avoided. Furthermore, a harmonious appearance is achieved by virtue of thesafety valve 23 being covered by theapron 12 and not being located visually disturbingly in theside wall 21. - Located below the bottom 13 of the
upper part 10 is astrainer insert 16 which is held in position by a flat rubber ring 17. Such a strainer insert with rubber ring is known in principle from commercially available espresso-makers. It serves to close thebrewing insert 50 towards the top and to retain the coffee powder in thebrewing insert 50 during brewing. - The bottom 13 of the
upper part 10 has a central opening, from which a risingpipe 14 extends vertically upwards. The risingpipe 14 is connected to theupper part 10 and preferably formed in one piece with it. It has an upwardly slightly tapering design and thus has essentially the shape of a truncated cone. At its upper end, the risingpipe 14 is closed in the axial direction, that is towards the top, while it has twoopposite openings 15 in the radial direction, that is laterally, at its upper end.FIG. 3 clarifies the arrangement and shape of theopenings 15 further, illustrating them from a different viewing direction to that inFIG. 2 . - Articulated on the
upper part 10 is alid 30, which is additionally illustrated in a perspective view inFIG. 4 . Thelid 30 can be pivoted about a horizontal axis between an open and a closed position. Thelid 30 serves to close theupper chamber 10 towards the top. Asplash guard 34 in the form of a ring is formed centrally on the inner side of thelid 30. This guard is dimensioned in such a way that it covers theopenings 15 of the risingpipe 14 in the closed position of thelid 30. In other words, thesplash guard 34 extends at least to the lower edge of theopenings 15 of the risingpipe 14 in the closed position of thelid 30. - The
lid 30 has aregion 31 which is curved inwardly, that is in the direction of the risingpipe 14. This curvature of thelid 30 leads to the inner lid region, which is located inside thesplash guard 34, coming to lie directly above the upper end of the risingpipe 14 when the lid is closed. The curvature of thelid 30 thus makes it possible to keep thesplash guard 34 short. This is desirable for aesthetic reasons but also for reasons of simple cleaning. - The
outer edge 35 of thelid 30 is towards the bottom designed in such a way that it comes to lie partly inside theside wall 11 of theupper part 10 in the closed state. Formed on theouter edge 35 of thelid 30 is anextension 32 in the form of two parallel hooks withreinforcements 36 extending inwards from theouter edge 35, which extension, together with a corresponding counterpart in theupper part 10 and a pin fastened therein, serves as a hinge. As the hooks are open at an angle upwards, thelid 30 can be removed easily from theupper part 10 in the open position. A centralgripping knob 33 is provided on the upper side of thelid 30. This knob is pushed onto apin 37 formed in one piece with thelid 30 and connected to it, for example by pressing, adhesive bonding or welding. - The
upper part 10 and/or thelid 30 are/is preferably made from a clear, transparent plastic. Polymethyl methacrylate in particular, which is also known by the trade name Plexiglas®, is suitable. However, manufacture from other, not necessarily transparent materials is also possible, for example from other heatproof and impact-resistant plastics or from stainless steel, aluminium or other metals. Thelid 30 is preferably manufactured in an injection-moulding or die-casting process, as is theupper part 10. In this connection, the splash guard is preferably formed in one piece with thelid 30. Thepin 37 too and theextension 32 as well are preferably formed in one piece with thelid 30. - In order to put the espresso-maker into operation, water is filled into the lower chamber in the
lower part 20. Thebrewing insert 50 is then inserted and filled with ground coffee. Then theupper part 10 is screwed on. By actuating theswitch 25, theheating element 26 is put into operation, which heats the water in the lower chamber. When the water comes to the boil, it is forced, owing to the pressure which is developed, through thepipe 54 into the brewing chamber where it draws the coffee powder. The ready espresso then rises through the risingpipe 14 and escapes through theopenings 15 into the upper chamber in theupper part 20. - If no
splash guard 34 were present on the lid, the espresso would then splash radially outwards. This would lead to dirtying of theentire lid 30. This is undesirable in particular when thelid 30 is transparent, as the espresso splashes are then unsightly. Moreover, espresso splashes could travel so far outwards that espresso finds its way out between thelid 30 and the upper edge of theupper part 10. - These disadvantages are avoided by means of the
splash guard 34. As the splash guard covers theopenings 15, the espresso coming out is diverted downwards and runs downwards on the exterior of the risingpipe 14, to accumulate in the upper chamber. In particular when thelid 30 is transparent, the preparation of the espresso can be observed through thelid 30 undisturbed by splashing espresso. - The
openings 15 are preferably roughly 2 to 6 millimetres high and 3 to 8 millimetres wide. Correspondingly, the splash guard extends roughly 4 to 10 millimetres downwards from the inner side of thelid 30. The splash guard is preferably located at a spacing of 2 to 6 millimetres from theopenings 15 in order to allow a sufficient gap. The precise dimensions depend on the overall dimensions of the espresso-maker. - Numerous variations of a coffee-maker according to the invention are possible. For example, the coffee-maker does not have to be electrically operated but can be intended for conventional heating of the water on a hot plate or on an open flame. Such a coffee-maker can also be suitable for use in a microwave oven if appropriate materials are selected, for example if metal parts are largely excluded.
- Furthermore, the outer shapes, for example, of the
lower part 20 and of theupper part 10 can be changed. The shape in plan view can also be polygonal, for example hexagonal, octagonal or dodecagonal, instead of essentially circular. The rising pipe does not have to be round in plan view either, but can have any other shape. More or fewer than two openings, for example one, three, four, five or six, can also be present at the upper end of the rising pipe. - A construction other than the construction described is also possible. There are coffee-makers, for instance, in which water is made to boil in a lower chamber and, owing to the boiling pressure, is conducted through a rising pipe into an upper chamber without passing through a brewing chamber. The coffee powder is then usually located directly in the upper chamber and is not brought into contact with the water until it arrives there. In this case, a strainer with a plurality of small openings is usually present between the upper and lower chambers. When the lower chamber cools, a vacuum is created, which sucks the ready coffee through the strainer into the lower chamber, while the leached coffee grounds are retained. A splash guard as provided in the present invention is advantageous in such a coffee-maker as well.
Claims (6)
1. Coffee-maker comprising,
a lower part having a lower chamber for receiving water,
a brewing insert for receiving ground coffee, said insert being insertable into said lower part, and
an upper part having an upper chamber,
wherein said lower part, said brewing insert and said upper part are arranged such that water can pass from said lower chamber through said brewing insert into said upper chamber,
wherein said lower part comprises a safety valve which is arranged close to an upper end of said lower part, and
wherein said upper part has an apron which covers said safety valve.
2. Coffee-maker according to claim 1 , wherein said lower part comprises a sidewall portion delimiting said lower part laterally and an essentially cylindrical connection piece adjoining said sidewall portion and having an external thread, and wherein said apron has an internal thread matching said external thread.
3. Coffee-maker according to claim 2 , wherein said safety valve is arranged in said connection piece.
4. Coffee-maker according to claim 1 , wherein said upper part is at least partly transparent.
5. Coffee-maker according to claim 1 , wherein said upper part is made at least partly of polycarbonate.
6. Coffee-maker according to claim 1 , wherein electrically operated means for heating water are present in said lower chamber.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US11/196,432 US20050279217A1 (en) | 2004-06-21 | 2005-08-04 | Coffee-maker |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
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DE202004009759U DE202004009759U1 (en) | 2004-06-21 | 2004-06-21 | cafetiere |
DE202004009759.1 | 2004-06-21 | ||
US10/878,368 US6968774B1 (en) | 2004-06-21 | 2004-06-29 | Coffee-maker |
US11/196,432 US20050279217A1 (en) | 2004-06-21 | 2005-08-04 | Coffee-maker |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US10/878,368 Division US6968774B1 (en) | 2003-08-19 | 2004-06-29 | Coffee-maker |
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US20050279217A1 true US20050279217A1 (en) | 2005-12-22 |
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Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
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US10/878,368 Expired - Fee Related US6968774B1 (en) | 2003-08-19 | 2004-06-29 | Coffee-maker |
US11/196,432 Abandoned US20050279217A1 (en) | 2004-06-21 | 2005-08-04 | Coffee-maker |
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Application Number | Title | Priority Date | Filing Date |
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US10/878,368 Expired - Fee Related US6968774B1 (en) | 2003-08-19 | 2004-06-29 | Coffee-maker |
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US (2) | US6968774B1 (en) |
CA (1) | CA2472613A1 (en) |
DE (1) | DE202004009759U1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100005811A1 (en) * | 2008-07-11 | 2010-01-14 | Danene Jaffe | Beverage Preservation, Chilling, and Dispensing System |
US9232873B2 (en) | 2013-06-03 | 2016-01-12 | Starbucks Corporation | Method for brewing a beverage |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202004009759U1 (en) * | 2004-06-21 | 2004-09-23 | Pi-Design Ag | cafetiere |
ATE410942T1 (en) * | 2004-12-21 | 2008-10-15 | Inventum Holland B V | DEVICE FOR PREPARING A DRINK |
CN101119667B (en) * | 2004-12-21 | 2010-12-08 | 因文图姆集团有限公司 | Device for preparing beverage |
CN101721135B (en) * | 2006-09-07 | 2013-07-17 | 库里格股份有限公司 | Method and apparatus for beverage formation |
DE102007016544A1 (en) * | 2007-04-05 | 2008-10-23 | BSH Bosch und Siemens Hausgeräte GmbH | Brewing chamber for brewing unit of a beverage brewing machine, comprises a removable insert having walls that form a water contacting area having a heat insulation material arranged under a coating of the water contacting area |
DE202010011979U1 (en) | 2010-08-30 | 2010-12-30 | Albert, Helmut | Coffee maker, with a cylindrical container open at the top and a filter piston movable up and down |
USD983586S1 (en) * | 2021-05-17 | 2023-04-18 | Jiangmen Cityxinhui Henglong Innovative Housewares Co., Ltd. | Coffee pot |
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US1188249A (en) * | 1915-07-23 | 1916-06-20 | Walter H Cook | Coffee-pot. |
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US1917071A (en) * | 1930-05-01 | 1933-07-04 | John E Smith | Apparatus for making coffee |
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US3334573A (en) * | 1965-09-27 | 1967-08-08 | Kanemaru Kaname | Percolator |
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IT1284992B1 (en) | 1996-10-18 | 1998-05-28 | Alfonso Bialetti & C Spa | PRESSURE COFFEE POT FOR THE PREPARATION OF COFFEE INFUSION |
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- 2004-06-21 DE DE202004009759U patent/DE202004009759U1/en not_active Expired - Lifetime
- 2004-06-28 CA CA002472613A patent/CA2472613A1/en not_active Abandoned
- 2004-06-29 US US10/878,368 patent/US6968774B1/en not_active Expired - Fee Related
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2005
- 2005-08-04 US US11/196,432 patent/US20050279217A1/en not_active Abandoned
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US1188249A (en) * | 1915-07-23 | 1916-06-20 | Walter H Cook | Coffee-pot. |
US1624606A (en) * | 1926-05-19 | 1927-04-12 | Lane Franklin Edward | Coffeepot |
US1917071A (en) * | 1930-05-01 | 1933-07-04 | John E Smith | Apparatus for making coffee |
US1947426A (en) * | 1931-12-12 | 1934-02-13 | John E Smith | Electrical cooking apparatus |
US2346924A (en) * | 1939-09-08 | 1944-04-18 | Casco Products Corp | Coffee maker |
US3077156A (en) * | 1957-11-12 | 1963-02-12 | Egi Mario | Percolator |
US3368476A (en) * | 1965-09-02 | 1968-02-13 | Mancioli Luciano | Apparatus for making a beverage, for example coffee |
US3334573A (en) * | 1965-09-27 | 1967-08-08 | Kanemaru Kaname | Percolator |
US3429255A (en) * | 1967-01-04 | 1969-02-25 | Peter L Cardiello | Coffee percolator |
US3638555A (en) * | 1968-12-30 | 1972-02-01 | Luciano Mancioli | Device for producing an infused liquid, particularly coffee |
US3580163A (en) * | 1969-02-05 | 1971-05-25 | Cory Corp | Variable capacity coffee percolator |
US3670641A (en) * | 1969-12-31 | 1972-06-20 | Luciano Mancioli | Beverage infusion apparatus, for example coffee |
US3667645A (en) * | 1970-06-17 | 1972-06-06 | Milton Emmer | Cover and knob assembly for a coffee percolator |
US4642443A (en) * | 1981-11-16 | 1987-02-10 | Northland Aluminum Products, Inc. | Apparatus for brewing coffee in microwave ovens |
US4498375A (en) * | 1984-03-01 | 1985-02-12 | Dante Bedini | Automatic coffee pot |
US4843954A (en) * | 1987-05-26 | 1989-07-04 | Robert Krups Stiftung & Co. Kg | Tea making machine |
US5281785A (en) * | 1992-02-20 | 1994-01-25 | Lacrex S.A. | Apparatus for preparing beverages in a microwave oven |
US5463935A (en) * | 1993-06-22 | 1995-11-07 | Biesse S.P.A. | Infusion maker |
US5894785A (en) * | 1996-10-10 | 1999-04-20 | Caffe' Molinari S.P.A. | Percolator of mocha type, for espresso coffee or other similar drinks |
US5970850A (en) * | 1997-09-03 | 1999-10-26 | Piazza; Pietro | Coffee, tea and herbal tea maker |
US20020124735A1 (en) * | 2001-02-14 | 2002-09-12 | Scott Michael James | Electric beverage maker |
US6823771B2 (en) * | 2002-10-08 | 2004-11-30 | Pietro Piazza | Coffee, tea, and herbal tea maker |
US6968774B1 (en) * | 2004-06-21 | 2005-11-29 | Pi-Design Ag | Coffee-maker |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100005811A1 (en) * | 2008-07-11 | 2010-01-14 | Danene Jaffe | Beverage Preservation, Chilling, and Dispensing System |
US9232873B2 (en) | 2013-06-03 | 2016-01-12 | Starbucks Corporation | Method for brewing a beverage |
Also Published As
Publication number | Publication date |
---|---|
US6968774B1 (en) | 2005-11-29 |
DE202004009759U1 (en) | 2004-09-23 |
CA2472613A1 (en) | 2005-12-21 |
US20050279218A1 (en) | 2005-12-22 |
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Legal Events
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STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |