MXPA94005797A - Infusion machine understanding a purification device of a - Google Patents

Abstract

The present invention relates to an infusion machine that includes a cold water reservoir which incorporates a water purification device and which comprises a water outlet connected to a water heater, a water purification device including a removable cartridge comprising a lower part forming a cup which is designed to be hermetically assembled in a suitable basin formed at the base of the tank, and which contains a water purifying substance, and an upper part that forms a cover which is located in line with the cup and which is capable of closing it, said cartridge cover comprising at least one opening through which water enters the reservoir, and said cartridge cup comprising at least one opening through which the water in a state The purified water flows to the water heater, characterized in that the water purification substance is contained in an over-filter which stamped in the cup of the cartridge and which has an upper face that has a peripheral ring that is applied tightly against the edge of the cup of the cartridge

Description

INFUSION MACHINE UNDERSTANDING A WATER PURIFICATION DEVICE »INVENTORS: CHRISTIAN BERNARD JOUATEL and FRANCIS PIERRE JACQUES LANDAIS, both citizens of France, residing respectively in Les Vaux, 61250 Randon, and Cité Scolaire, Rué Jean Jaurés, 72600 Ma ers, France.

CAUSAHABIENTE: MOULINEX, a French company, with • address at 11 Rue Jules Ferry, Bagnolet, France.

Summary The invention consists of an infusion machine comprising a cold water tank (1) incorporating a water purification device (5) and comprising a water outlet connected to a heater (3). According to the invention, the water purification device contains a removable cartridge (7) comprising a lower part forming a beaker or cup (8) intended to be mounted hermetically in a suitable basin (10) formed at the bottom of the container. deposit, and in which is removably placed an overfilter (15) containing a water purification substance (16), as well as a high part forming a cover (18), located in the prolongation of the beaker or beaker (18). 8) and adapted to close said lid (18) of the cartridge comprising at least one opening (42) through which the water of the reservoir enters, and said beaker or cup (8) of the cartridge comprising at least one opening (51) through which water passes to the water heater (3) after passing through the filter (15). Description; The invention applies particularly to electric coffee makers. The present invention relates to a tea infusion machine, such as for example a coffee machine of drop-wise type, which comprises a cold water reservoir incorporating a water purification device and comprising a water outlet connected to a heater of water. To guarantee a good scent of the infusion, it is necessary to place in the reserve a filter adapted to purify the water destined to feed the water heater. For this purpose, a water purification filter of known type is composed of a removable cartridge in relatively flexible material, filled with a water purification substance containing active carbon granules. This cartridge forming a water purification filter is placed so that it fits into a basin of adapted profile, formed in the bottom of the tank, and containing water inlet holes and outlet orifices through which the purified water, after the passage after the filter cartridge is drained into the water heater.

However, due to the fact that said filter cartridge is applied against the walls of the bowl ^ - placed on the bottom of the tank, the cartridge is subject to deform as a result of an increase in its volume due to an inflation of the mass of the purification substance by the water it retains, which causes a certain difficulty to extract the filter cartridge outside the tank when changing it. The invention has among other objectives, to eliminate these drawbacks. In accordance with the invention, the water purification device comprises a removable cartridge comprising a lower part forming a beaker or vessel intended to be mounted hermetically in a suitable basin formed at the bottom of the reservoir, and in which it is removably positioned an overfilter containing a water purifying substance, as well as a high part forming a lid located in the prolongation of the beaker or vessel and which is adapted to close it, said lid of the cartridge comprising at least one opening whereby the water of the reservoir enters, and said beaker or cup of the cartridge comprising at least one opening through which the water drains into the water heater after passage through the overfilter. Thanks to said assembly, it is understood that the removable cartridge constitutes a simple support and protection member of the overfilter, which is easily removable from the cartridge. Moreover, the cartridge and the superfilter form a W - hygienic and user friendly set.

According to another important feature of the invention, the upper face of the overfilter has a peripheral edge applied sealingly on the rim of the cartridge bore. This particular position of the overfilter ensures both a perfect tightness between the lid and the beaker of the cartridge, and an excellent maintenance of the placement of the overfilter in the beaker of the cartridge, also guaranteeing permanently one step of all the water of the reserve through the over-filter without risk of separation. DESCRIPTION OF THE DRAWINGS Other features and advantages of the invention will be apparent from the following description, by way of example, with reference to the accompanying drawings, in which: Figure 1 is a partial vertical section view of -etjif a machine of infusion according to the invention, teaching a non-return flap in the closed position; Figure 2 is a sectional view according to the line lili of Figure 1; Figure 3 is a view identical to Figure 1, the anti-return flap being in the open position; Figure 4 is a vertical sectional view, on a larger scale, of the water purification device illustrated in Figures 1 and 3; Figure 5 is a separate view, in vertical section, "." Of the beaker or beaker and lid constituting the cartridge of the water purification device illustrated by figure 4. Figure 6 is a sectional view of a detail of the lid according to line VI-VI of figure 5; Figure 7 is a vertical sectional view of the beaker and cup and the lid of Figure 5 once attached; Figure 8 is a perspective view of the water purification device, showing the cartridge in the open position ready to receive; an overfilter, and Figure 9 is a perspective view of the water device of Figure 8, after insertion of the overfilter and closure of the cartridge, In figures 1, 2 and 3, we have only represented part of an infusion machine, such as a drip-type coffee maker, that is to say: a cold water tank 1 whose outlet 2 is connected to a water heater 3 via a non-return flap 4 schematically depicted Y incorporating a cooling device. purification of water, designated by the general reference 5. In a manner known per se, the outlet of the water heater feeds, through a tube of hot water upwards, an irrigation channel of a filter intended to receive ground coffee and arranged on top of a coffee collector. According to the invention, the water purification device 5 (figures 1, 2, 3 and 4) comprises a removable cartridge 7, made of a plastic material such as, for example, H-polypropylene, and comprising a lower part forming a cup or cup 8 mounted in a sealed manner, for example by coupling, in a basin 10 (figures 1, 2 and 3), of adapted profile, formed in the bottom 12 of the tank 1, and in which a removable overfilter 15 containing a water purifying substance 16, as well as a high part forming a cover 18 for closing the flap 8. The overfilter 15 is made of a water-permeable material, such as for example a felt, and the water purifying substance 16 containing this composed of granules of activated carbon treated by silver salts; Such a substance suppresses the taste and odor of chlorine, retains a part of the organic impurities and prevents the proliferation of bacteria. The overfilter 15 is maintained in its position, in a sealed manner, in the beaker or cup 8 of the cartridge 7 thanks to a peripheral edge 19 (more visible in FIG. 8), formed on the flat upper side of the overfilter. 15 and applied on the edge 21 (figure 8) of the beaker or cup 8. This type of positioning of the overfilter in the beaker or beaker of the cartridge is particularly advantageous as it guarantees the passage of all the water through the overfilter without risk of separation from it.

As shown in Figures 1 and 3, the lid 18 of the cartridge 7 has a long shape and extends "__ | vertically in the extension of the beaker or cup 8 by making a projection through an appropriate opening 22 in a cover 23 of the reservoir 1. Moreover, the lid 18 of the cartridge 7 has, from both sides of its upper part or bottom 25, a slight projecting depression 26a respectively 26b, more visible in figures 8 and 9, forming a prehension member intended for the removal of the cartridge 7. We have represented in Figure 1 and 3 a filler opening k of water, in the cover 23 of the tank I. The cover 18 of the cartridge 7 has a side wall 28 and an internal wall 29 adjusted to so as to delimit, with this side wall 28, a vertical cylindrical duct 30, of axis XX, whose lower part is intended to receive a hollow vertical axis 32 forming a hinge made on the side of the upper edge 33 of the cup or cup 8 of the cartridge , from such a man was that the lid 18 is capable of rotating on the axis 32 of the beaker or beaker 8. As shown in figures 5 and 6, the vertical hollow axis 32 of the beaker or beaker 8 of the cartridge 7 (without the overfilter) laterally possesses a nose 35 intended to be placed in an unrestrainable manner in a substantially semi-circular groove 36 (Figure 6) located in the side wall 28 of the lid 18 of the cartridge 7, so as to form a non-removable hinge.

The beaker or cup 8 and cover 18 of the cartridge 7 also contain removable fastening means, in this case bayonet type, constituted by a spur 38 formed at the base of the side wall 28 of the lid 18 and intended to be inserted and fixed by means of an appropriate notch 39 placed in a small vertical wing 41 formed on the lip of the beaker 8, on the side opposite to the axis 32, see figure 5. Figure 7 shows the cartridge 7 (without the overfilter) once the beaker or cup 8 and the lid 18 assembled and fixed one on the other. ~ Faith As shown in Figure 2, two interstices 42, 43, formed by recesses in the wall of the lid 18, are placed in the meeting area between the lid 18 and the beaker or cup 8 of the cartridge 7 and are intended for the passage of water coming from the reservoir 1 in order to feed the envelope -filter 15. The passage of water inside the lid 18 of the cartridge 7 can also be effected by additional openings 45 (figure 9), for example two, placed in the lower part of the lid 18. We have represented in 47 holes in the open air , for example two, made in the upper part of the lid 18. In the assembly example illustrated in FIG. 1, the beaker or beaker 8 of the cartridge 7 extends, from the bottom 12 of the reservoir 1, on a part only of the depth of the basin 10 and has, on the one hand, in its bottom 49 a slit 51 that extends laterally to empty into the duct 30, and on the other hand, in an inclined lateral plane, an opening 53 putting the duct in direct contact 30 with the bowl 10; the space 55 placed between the bottom 49 of the beaker 8 of the cartridge and the bottom 56 of the basin 10, as well as the duct 30, then constitute a buffer reservoir, designated at 57, located above the anti-return flap 4. This reservoir plug 57, integrated in part in the cartridge 7, has an open-air opening 58 made in the upper part of the lid 18 of the cartridge 7. The operation of such water reservoir with water purification device incorporated according to The invention is as follows: When filling the reservoir 1, the anti-return flap 4 being open, the water enters the interior of the lid 18 of the cartridge 7 via the interstices 42, 43 and passes through the over-filter 15, draining, purified, through openings 51, 53 of the beaker or cup 8 of the cartridge, as well as through the outlet 2 of the reserve to fill the water heater 3. During the heating of the water, the anti-return flap 4 being closed, the hot water irrigates the ground coffee present in the filter and simultaneously the reserve plug 57 is filled with purified water until the equilibrium of the water levels in the reservoir 1,1a to the lid 18 of the cartridge 7 and the reservoir plug 57 as illustrated in figure 1. As a consequence of the opening of the anti-return flap 4, the heater Water 3 is then supplied with purified water drawn from the buffer reservoir 57 as illustrated in FIG. 3. This feeding of the water heater through the reservoir cap also allows a continuous spillage of purified water without loss of charge caused by the water purification substance contained in the overfilter. The change of the overfilter 15 in response to any appropriate indicator indicating the saturation state of the over-filter after a certain number of uses is made the following week. The user removes the cartridge 7 from the reservoir 1, very comfortably thanks to the prehension attachment 26a-26b projecting from the cover 23 of the reservoir and then unlocks the cap 18 by turning counterclockwise to open the beaker or cup 8 and then removes the overfilter 15. After inserting a new filter 15 into the beaker 8 of the cartridge 7, and locking the lid 18 by turning it clockwise as illustrated in FIG. Figure 8, the user then introduces the cartridge 7 (Figure 9) into the coffee maker tank 1 through the opening 22 of the container cover Wk; the cartridge 7 being placed in the reservoir 1, figure 1, the new over-filter 15 is ready to operate.

Claims (10)

NOVELTY OF THE INVENTION REI INDICATIONS

1. An infusion machine comprising a cold water reservoir (1) which incorporates a water purification device (5) and which comprises a water outlet (2) connected to a water heater, characterized in that the water purification device (5) comprises a removable cartridge (7) comprising a lower part forming a beaker or cup (8), intended to be mounted hermetically in a suitable basin (10) formed in the bottom (12) of the reservoir (1), and in which an overfilter (15) containing a water purifying substance (16) is removably placed, as well as a part high forming a cover (18) located in the extension of the beaker (8) and which is adapted to close this, said lid (18) of the cartridge comprising at least one opening (42; 43) through which water enters the tank and said beaker or cup (8) of the cartridge comprising at least one opening (51; 53) through which the water passes in the water heater (3) after passing through the overfilter (fifteen) .

2. Infusion machine according to claim 1, characterized in that the upper face of the overfilter (15) has a peripheral edge (19) coming to be applied hermetically on the rim (21) of the beaker or cup (8) of the cartridge (7). ? An infusion machine according to claim 1 or 2, characterized in that the lid (18) of the cartridge (7) extends vertically over at least the entire height of the reservoir (1) and comprises a bottom (25) , a side wall (28) and a vertical internal wall (29) delimiting with said side wall a cylindrical conduit (30) in the lower part of which is placed a vertical axis (32) formed on an upper edge of the cup or glass (8) of the cartridge, in such a way that a rotation of the lid (18) around the axis (32) of the beaker or cup (8) allows the opening or closing of said beaker. 4. Infusion machine according to claim 3 or 4, characterized in that said shaft (32) of the cup or cup (8) laterally has a nose (35) placed in an unrestrainable manner in a substantially semi-circular articulation (36) placed on the side wall (28) ß of the lid (18) of the cartridge (7). 5. Infusion machine. according to claim 3 or 4, characterized in that the cup (8) and the lid (18) of the cartridge (7) have, on the side opposite the axis-conduit assembly, elements that allow (38; 39) its fixation and be removable. Infusion machine according to claim 3 or 4, characterized in that the removable fastening elements comprise a spur (38) formed in the base of the side wall (28) of the cover (18) and which is inserted in a appropriate notch (39) placed in a small vertical wing (41) formed in the lip of the beaker (8). Infusion machine according to one of claims 3 to 6, comprising a non-return flap (4) interposed between the outlet of the reservoir (1) and the inlet of the water heater (3), characterized in that the beaker or vessel (8) of the cartridge (7) extends vertically, from the bottom of the tank (1), on a part only of the depth of the basin (10), and because the shaft (32) of the beaker (8) is hollow and it opens out, on the one hand directly into the conduit (30) of the lid (18), and on the other hand, into said tub (10) via a corresponding opening (53) made in the beaker (8), in such a way that the space (55) located between the bottom (49) of the beaker (8) and the bottom (56) of the basin (10), as well as said conduit (30) of the lid, constitute a reserve plug (57) located above of said flap (4), this stopper reservoir (57) having at least one open air hole 58 made in the upper part of the pa lateral network (28) of the lid (18) of the cartridge (7). An infusion machine according to one of claims 3 to 7, characterized in that the opening (42, 43) through which the water in the reservoir enters the lid (18) of the cartridge (18) is constituted by an interstice formed in the contact zone between the lid (18) and the beaker (8) of the cartridge and which opens out above the filter (15), said • ^ lid (18) of the cartridge (7) having, at the top of its side wall, at least one opening hole outdoors (47). An infusion machine according to one of claims 3 to 8, characterized in that the reservoir (1) has a cover (23) comprising an opening (22) for inserting the cartridge, located exactly above the basin (10), as well as as a filler opening (27) of the container, the lid (18) of the cartridge (7) having a pre-grasping element (26a-26b) for the removal of the cartridge. 10. Infusion machine according to any of the preceding claims, characterized in that the overfilter (15) is made of a water-permeable material, such as for example a felt. IN WITNESS WHEREOVER, I sign the above in the city of Mexico, D. F., on the 29th day of the month of July 1994. By MOULINEX Hedwig Lindner L.