Device for spherification of a liquid

Abstract

A device for spherification of a liquid includes a first device for storing a first liquid; and a spherification tank for storing a second liquid, arranged so that a dripper or entry funnel controls a level of the second liquid in the spherification tank. A device meters the first liquid coming from the first tank into the spherification tank. An extraction device extracts spheres generated in the spherification tank as a result of the metering. The extraction device includes a worm screw located in the spherification tank, the worm screw being arranged at an angle to the level, and a motor for rotating the worm screw.

Claims

1. A device for spherification of a liquid, comprising: a spherification tank; a first storage tank of a first liquid; a second tank for storing a second liquid; a dripper or entry funnel for introducing the second liquid from the second tank into the spherification tank, and for controlling a level of the second liquid in the spherification tank; a first fluid dispenser for dispensing the first liquid coming from the first tank into the spherification tank; an extraction device for extracting spheres generated in the spherification tank as a result of the dispensation, wherein: the extraction device comprises a worm screw located in the spherification tank and a motor for rotating the worm screw, the worm screw is arranged at an angle to said level, wherein the worm screw comprises a spoon having a concave shape for receiving the first liquid into an interior of the spoon, wherein the spoon is arranged in parallel with the level of the second liquid when the spoon is aligned with a vertical axis of said first fluid dispenser of the first liquid, wherein the spoon is configured to turn over such that the first liquid received in the interior of the spoon leaves the interior of the spoon; and the first fluid dispenser dispenses the first liquid into the spherification tank at a first position and the dripper or entry funnel introduces the second fluid into the spherification tank at a second position, wherein the second position is proximate a portion of the angled worm screw higher than a portion of the angled worm screw proximate the first position.

2. The device according to claim 1, wherein the spoon is fixed to the worm screw, without possibility of movement with respect to the worm screw.

3. The device according to claim 2, wherein the spoon remains fixed to the central axis of the worm screw.

4. The device according to claim 1, further comprising: a dispensing pump for the first liquid, a cap located in the first tank having dispensing nozzles for dispensing calcium salts, thickeners and stabilisers, an alginate powder dispenser connected to the second tank.

5. The device according to claim 4, wherein the dispensing pump for the first liquid is located in an outlet conduit of the first tank.

6. The device according to claim 4, wherein the alginate powder dispenser comprises a hopper, a worm screw and a capacitance sensor.

7. The device according to claim 1, wherein a valve is located between the first tank and the spherification tank.

8. The device according to claim 1, wherein the first fluid dispenser comprises a dripper.

9. The device according to claim 1, wherein the spherification tank comprises an outlet at a third position, wherein the third position is proximate a portion of the angled worm screw higher than the portion of the angled worm screw proximate the second position.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) To aid understanding, explanatory yet non-limiting drawings are included of an embodiment of the apparatus of the present invention.

(2) FIG. 1 is a schematic view of the components of an embodiment of a device according to the present invention, in which the internal parts of the different components are shown.

(3) FIG. 2 is a detailed view of the first tank or input tank of the product to be spherified.

(4) FIG. 3 is a detailed view of the water tank having a dispenser.

(5) FIG. 4 is a cross-section of the dispenser used in the tank from FIG. 3.

(6) FIG. 5 is a detailed view of the mixing tank having a worm screw for extracting formed spheres.

(7) FIG. 6 is a view from above of the cap of dispensers comprised in the first tank from FIG. 1 and FIG. 2.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

(8) In the example shown, the functioning is illustrated for the case of reverse spherification. In the case of direct spherification, the contents and/or arrangement of the dispensers should be changed, while the rest of the device can be identical.

(9) The spherification apparatus shown in the drawings comprises a water tank -2- or second tank and a first tank -1-. Furthermore, it comprises a formation tank or spherification tank -3- in which spherification occurs.

(10) In the case of reverse spherification, water is introduced into the water tank -2- and the liquid that we want to spherify into the first tank -1-. Said tanks -1- and -2- are removable and easy to clean.

(11) The mixing system for the water tank having alginate and the liquid to be spherified having the rest of the salt comprises magnetic mixers -1c- and -2b-.

(12) Once the liquid to be spherified has been introduced, the relevant programme (selected recipe book) will be introduced by means of the device controller. The domestic spherification apparatus will dispense the estimated weight in grams of each component (according to the recipe), of both calcium chloride and thickener, and the correct ratio of pH buffer by means of the cap -5a- powder dispenser. These quantities and ratios can be programmed to be introduced in advance. There is also an option for the device to repeat dispensing until the correct data is obtained, for example, pH, as it is the most sensitive measurement to be taken into account.

(13) The first tank or container -1- comprises a cap -5a- having five dispensing nozzles -8- (FIG. 6) that dispense via a worm screw which is controlled electronically. Two dispensers are used to balance the pH, another is for the thickener, another for the calcium chloride, and another provides the option of adding a food stabiliser for some recipes.

(14) In the second tank -2-, the tank for water, the apparatus dispenses the alginate in the proportion necessary via the alginate dispenser -4-.

(15) The alginate dispenser -4- comprises a hopper 4a, a capacitance sensor 4b, and a worm screw or feeder screw -4c-, which is controlled by means of the number of rotations of the screw, with the weight in grams of each rotation being calibrated and programmed.

(16) In the first tank -1- and in the water tank -2-, there are spring valves -1b- and -2a-, one for each container, which lead to the formation tank -3-. The formation or spherification tank -3- comprises a dispensing device or dripper -3d- and a helical worm screw -3b- for extracting spheres to the outlet -3c-. The dripper can be composed of a simple liquid inlet.

(17) In order to perform mixing in the first tank -1- it is preferable to insert a plastics magnet (helix) for magnetic mixing in the initial containers (of water and of liquid to be spherified using a magnetic mixer -1c- in each case). This magnetic mixing is commonly used in laboratories.

(18) The outlet of the first tank -1- for the liquid to be spherified has a spring valve -1b-. Although not shown in the figures, the outlet of the first tank -1- can be connected by means of a diffusion pump or a peristaltic pump -1d- in bypass with a pH sensor such that the liquid is returned to the input container via a control valve or three-way valve. This three-way valve will change when the pH is correct, to send the liquid to the formation tank -3-. In the example shown, the valve -1b- leads to a peristaltic pump -1d- which pushes the liquid towards a dripper -3d-. In some cases, the use of the pump may be forgone.

(19) The second tank -2- comprises both a feeder screw -4c- for the alginate and a spring valve -2a- in the lowest part of the tank. The spring valve can be a spring valve that is commonly used in domestic coffee makers. The mixed water, once mixed, can be dispensed from the second tank -2- to the formation tank -3- by means of gravity by opening the spring valve -2a- leading to the water with alginate. Liquid can be dispensed into the formation tank -3- via a dripper -2c- or entry funnel.

(20) The mixing in the water tank -2- can be carried out using a magnetic mixer -2b-.

(21) In this way, the two mixed liquids are produced (water+alginate in the second tank -2- (second liquid) and product to be spherified+pH controllers+thickeners+calcium chloride in the tank -1- (first liquid)).

(22) The second liquid (second tank -2-) is conveyed to the formation or spherification tank -3- which contains the helical worm screw -3b- arranged in such a way that the liquid forms a level -9- such that the plane that contains the level -9- forms an oblique angle (an angle other than 0) with the axis of the worm screw -3b-.

(23) The mixture of alginate and water with calcium chloride and liquid to be spherified allows spherical membranes having liquid in their interior (spherification) to be formed. The spheres will form when the first liquid or input liquid (pre-mixed with pH controllers, thickeners and calcium chloride in tank -1-) comes into contact with the second liquid (mixture of water+alginate) (in the spherification tank -3-).

(24) It will be possible to produce small-sized spheres (known as caviar) (dripping the liquid to be spherified directly into the formation tank -3- via the dripper -3d-), without the dispensing spoon or receiving component -3a- as an intermediary. It will also be possible to produce larger spheres (known as ravioli) by dripping the liquid to be spherified into a dispensing spoon -3a-, and, once filled with liquid, said spoon will turn, coming into contact with the liquid in the spherification or formation tank -3- by lowering itself below the level -9- of said tank. The rotation of the dispensing spoon -3a- causes the formed sphere to leave the concave space by falling into a region in which it is pulled along by the vanes of the worm screw -3b-. The dispensing spoon -3a- in the example is arranged in parallel with the level -9- of the second liquid. It may stay fixed to the axis of the worm screw -3b- or even to the helical vane of the same.

(25) The spherification apparatus will automatically introduce the product to be spherified (by means of a spoon or direct drops) into the bath that contains the water+alginate mixture (deposited on the inclined helicoid) and the spheres will have formed in approximately 180-210 seconds. The spheres will be extracted by means of rotation of the helical worm screw -3b- which will keep rotating at the speed needed to keep the spheres in the bath for 180-210 seconds while they are forming. This helical worm screw mechanism -3b- will prevent the spheres from sticking together while they are forming, as each turn of the screw provides a cavity for a new sphere.

(26) If the user wants to produce smaller or caviar spheres, the drip will be carried out directly into the container that houses the helical worm screw. This drip can be controlled by the stepper motor of the peristaltic pump -1d-. The formed spheres will be collected and conveyed by the helical worm screw -3b- as far as the formation outlet -3c-, reaching the same once the necessary time has passed.

(27) There are numerous possibilities that differ from the example shown, which are merely given as examples; the inlet nozzle -3d- can take any form. For example, it would be possible for the inlet nozzle to have a rotating spoon or a spoon with alternating movement that would receive the first liquid from the first tank -1- and would dispense or drop its contents into the liquid in the formation or spherification tank -3-. This dispensing spoon -3a- has a rotating movement such that once dispensed by the dripper system it will start to rotate until it frees the liquid to be spherified in the inlet nozzle via the dripper -3d-. In this case, the worm screw -3b- in the formation tank -3- may not have the receiving element or dispensing spoon -3a-.

(28) The components of the embodiment shown in the drawings have been represented in a schematic and conceptual manner, not necessarily corresponding to their actual form or structure.

(29) Although the invention has been set out and described with reference to embodiments thereof, it should be understood that these do not limit the invention, and that it is possible to alter many structural or other details that may prove obvious to persons skilled in the art after interpreting the subject matter disclosed in the present description, claims and drawings. Therefore, the scope of the present invention includes any variant or equivalent that could be considered covered by the broadest scope of the following claims.