NL2020706B1 - Self contained liquid circulation and heating unit and vacuum system for delaying spoilage of a consumable product comprising such a unit - Google Patents
Self contained liquid circulation and heating unit and vacuum system for delaying spoilage of a consumable product comprising such a unit Download PDFInfo
- Publication number
- NL2020706B1 NL2020706B1 NL2020706A NL2020706A NL2020706B1 NL 2020706 B1 NL2020706 B1 NL 2020706B1 NL 2020706 A NL2020706 A NL 2020706A NL 2020706 A NL2020706 A NL 2020706A NL 2020706 B1 NL2020706 B1 NL 2020706B1
- Authority
- NL
- Netherlands
- Prior art keywords
- heating unit
- liquid circulation
- stand
- water
- vacuum pump
- Prior art date
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 89
- 239000007788 liquid Substances 0.000 title claims abstract description 84
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 62
- 238000010411 cooking Methods 0.000 claims abstract description 26
- 238000005086 pumping Methods 0.000 claims abstract description 5
- 238000004140 cleaning Methods 0.000 claims description 13
- 238000001035 drying Methods 0.000 claims description 12
- 238000005259 measurement Methods 0.000 claims description 7
- 239000012530 fluid Substances 0.000 claims description 5
- 239000003570 air Substances 0.000 description 35
- 230000006870 function Effects 0.000 description 7
- 239000000779 smoke Substances 0.000 description 7
- 230000001276 controlling effect Effects 0.000 description 6
- 239000004509 smoke generator Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 235000013305 food Nutrition 0.000 description 3
- 239000012080 ambient air Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 1
- 235000008452 baby food Nutrition 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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
- A47J27/00—Cooking-vessels
- A47J27/10—Cooking-vessels with water-bath arrangements for domestic use
Abstract
The present disclosure relates to a self contained liquid circulation and heating unit at least partly immersable into a general purpose cooking vessel. The unit comprising a housing, an air and water inlet, a pump arranged in the housing, a first duct between the air water inlet and an inlet of the pump and a heating element arranged in the housing. The pump is a vacuum pump suitable for pumping air and liquid. The unit further comprises an air pressure sensor for measuring the air pressure at an inlet of the vacuum pump. The present disclosure also relates to a vacuum system for delaying spoilage of a consumable product in a container by means of a low pressure environment, in Which the vacuum system comprises such a self contained liquid circulation and heating unit.
Description
TECHNICAL FIELD AND BACKGROUND
The present invention in general relates to the field of cooking appliances and in particular relates to a self contained liquid circulation and heating unit at least partly immersable into a general purpose cooking vessel.
Such a self contained liquid circulation and heating unit is for example known from US-A1-2016/0037956. In the embodiment of a self contained liquid circulation and heating unit shown in Figures 1 and 2 of US-A1-2016/0037956 the self contained liquid circulation and heating unit is called a fluidic temperature control device. An upper portion thereof includes a display device which can display information, e.g. the temperature of the fluid present in the general purpose cooking vessel in which a lower portion of the temperature control device is at least partially immersed. The lower portion comprises a housing in which a submersible water pump and liquid intake and ejection ports are provided. The lower portion further comprises a heating element provided in the housing and adjacent the water pump for controlling the temperature of the fluid in which it is immersed. A middle portion of the known fluidic temperature control device comprises a mounting device enabling attachment of the fluidic temperature control device to the general purpose cooking vessel. In the field of cooking appliances or even more general in the field of food processing there is a general desire to provide multi-purpose appliances. Further there is a desire to reduce the energy these appliances use. SUMMARY
It is therefore an object of the invention to provide a self contained liquid circulation and heating unit at least partly immersable into a general purpose cooking vessel which can be used for at least one other purpose. It is a further object of the invention the provide a self contained liquid circulation and heating unit at least partly immersable into a general purpose cooking vessel in which the energy used for bringing or keeping a fluid in a general purpose cooking vessel in which it is at least partly immersed is reduced.
According to the invention this object is obtained by providing a self contained liquid circulation and heating unit at least partly immersable into a general purpose cooking vessel according to claim 1. By according to the invention using a vacuum pump suitable for pumping air and liquid the self contained liquid circulation and heating unit can also function as a vacuum system for delaying spoilage of a consumable product contained within a container by means of lowering the pressure in the container. The invention is based on the insight that the fluidic temperature control device of US-A1-2016/0037956 is restricted and intended to perform only one function, i.e. controlling the temperature of the liquid in which it is at least partially immersed by the use of the water pump used. By, in accordance with the invention, using a vacuum pump suitable for pumping both water, or liquid in general, and air a multi-purpose appliance is provided. By providing an air pressure sensor the vacuum pump in the self contained liquid circulation and heating unit can be controlled in an accurate and reliable manner. In dependence on the container of which the inner pressure is to be lowered the self contained liquid circulation and heating unit can comprise a connection port for connecting the air and water inlet to the container for the consumable product.
In an embodiment of a self contained liquid circulation and heating unit according to the invention the water inlet is an air and water inlet, wherein the self contained liquid circulation and heating unit comprises a second duct connected to the first duct at a first branching point, the second duct comprising from the first branching point in a serial arrangement a first valve, the air pressure sensor, a second valve and an opening to external surroundings. It is then advantageous when the inlet of the vacuum pump, the first branching point, the first valve, the air pressure sensor, the second valve and the opening to the external surroundings are provided in a serial arrangement. In this manner, in particular by providing the first valve, the air pressure sensor can be prevented from coming into contact with liquid or water, which could disturb the functioning of the air pressure sensor.
In a further embodiment of a self contained liquid circulation and heating unit according to the invention the unit comprises a water sensor, such as a flow sensor for obtaining water measurements, said water sensor being positioned in the first duct between the air and water inlet and the first branching point. It is then preferred that the self contained liquid circulation and heating unit comprises a controller arranged to control the vacuum pump and the first and second valve, the water sensor being operatively linked to the controller for providing information to the controller indicative of water measurements, wherein the controller is programmed to selectively operate in one of a plurality of different operating modes, the plurality of different operating modes comprising a mode in which at least the first valve is closed when the water sensor detects water in the first duct. In this manner it is prevented in a reliable manner that the air pressure sensor comes into contact with liquid or water, which may improve the lifetime and/or reliability of the air pressure sensor.
In a still further embodiment of a self contained liquid circulation and heating unit according to the invention the self contained liquid circulation and heating unit comprises a third valve positioned in the first duct between the air and water inlet and the first branching point. It is then advantageous when the plurality of different operating modes comprises a drying and cleaning mode for drying and cleaning of at least the air pressure sensor, in which drying and cleaning mode the third valve is closed and the first and second valves are opened and the vacuum pump is activated during a drying and cleaning period. This provides the possibihty to dry and clean the air pressure sensor by sucking ambient air through the air pressure sensor in case the air pressure sensor by accident or otherwise has come into contact with e.g. water.
In an even further embodiment of a self contained liquid circulation and heating unit according to the invention the self contained liquid circulation and heating unit comprises an outlet duct extending from an outlet of the vacuum pump to an outlet of the self contained liquid circulation and heating unit and a temperature sensor, wherein the outlet of the vacuum pump, the temperature sensor, the heating element, and the outlet of the self contained liquid circulation and heating unit are provided in a serial arrangement. In the fluidic temperature control device known from US-A1-2016/0037956 the heating element is provided adjacent, thus separate from the water pump. By in accordance with the invention proving the heating element and the vacuum pump in a serial arrangement it is possible to heat the water or liquid more efficiently and even more accurately. In particular when the heating element is a thick film heating element the energy use appears to be very efficient.
The invention also relates to a vacuum system for delaying spoilage of a consumable product in a container by means of a low pressure environment, in which the vacuum system comprises a self contained liquid circulation and heating unit according to any one of the preceding claims. In an embodiment of a vacuum system according to the invention the plurality of different operating modes comprises a vacuum mode for lowering a pressure inside the container, wherein in the vacuum mode the heating element is deactivated.
Further advantageous embodiments are represented in the subclaims.
BRIEF DESCRIPTION OF DRAWINGS
These and other features, aspects, and advantages of the inventive vacuum system of the present disclosure will become better understood from the following description, appended claims, and accompanying drawing wherein:
Fig. 1 schematically shows a self contained liquid circulation and heating unit according to an embodiment of the invention used for circulating and heating of a liquid in a general purpose cooking vessel;
Fig. 2 schematically shows a self contained liquid circulation and heating unit according to a further embodiment of the invention used as a vacuum system for lowering the pressure in a container for consumable product for delaying spoilage of the consumable product;
Fig. 3a schematically shows a self contained unit according to a further embodiment of the invention used for circulating and heating of a liquid in a general purpose cooking vessel;
Fig 3b schematically shows another embodiment for the adapter of figure 3a;
Fig. 4 schematically shows a self contained unit according to a further embodiment of the invention used as a vacuum system for lowering pressure in a container; and
Fig. 5a schematically shows a self contained unit according to a further embodiment of the invention used as a smoke system for a smoke treatment of a consumable product in a container; and
Fig. 5b shows an alternative embodiment of the self-contained unit as a smoke system of fig. 5a.
DESCRIPTION OF EMBODIMENTS
Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs as read in the context of the description and drawings. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein. In some instances, detailed descriptions of well-known devices and methods may be omitted so as not to obscure the description of the present systems and methods. Terminology used for describing particular embodiments is not intended to be limiting of the invention. As used herein, the singular forms a, an and the are intended to include the plural forms as well, unless the context clearly indicates otherwise. The term and/or includes any and all combinations of one or more of the associated listed items. It will be understood that the terms comprises and/or comprising specify the presence of stated features but do not preclude the presence or addition of one or more other features. It will be further understood that when a particular step of a method is referred to as subsequent to another step, it can directly follow said other step or one or more intermediate steps may be carried out before carrying out the particular step, unless specified otherwise. Likewise it will be understood that when a connection between structures or components is described, this connection may be established directly or through intermediate structures or components unless specified otherwise.
For the purpose of clarity and a concise description, features are described herein as part of the same or separate embodiments, however, it will be appreciated that the scope of the invention may include embodiments having combinations of all or some of the features described. It may be understood that the embodiments shown have the same or similar components, apart from where they are described as being different.
The invention is described more fully hereinafter with reference to the accompanying drawings, in which embodiments of the invention are shown. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. The description of the exemplary embodiments is intended to be read in connection with the accompanying drawings, which are to be considered part of the entire written description. In the drawings, the absolute and relative sizes of systems, components, layers, and regions may be exaggerated for clarity. It is remarked that the drawings are not to scale. Embodiments may be described with reference to schematic and/or cross-section illustrations of possibly idealized embodiments and intermediate structures of the invention. In the description and drawings, like numbers refer to like elements throughout. Relative terms as well as derivatives thereof should be construed to refer to the orientation as then described or as shown in the drawing under discussion. These relative terms are for convenience of description and do not require that the system be constructed or operated in a particular orientation unless stated otherwise.
Fig. 1 schematically shows a schematic representation of a self contained liquid circulation and heating unit 1 according to an embodiment of the invention used for circulating and heating of a liquid in a general purpose cooking vessel 5. The liquid, such as water, is filled up to a liquid level 5A in the general purpose cooking vessel 5. Although not shown in Figure 1 self contained liquid circulation and heating unit 1 can comprise a mounting device (e.g. a clamping device, a tripod or the like) enabling attachment of the unit 1 to the general purpose cooking vessel 5. Please note that the drawing is not to scale and that the unit 1 can be a hand held unit.
In Figure 1 the self contained liquid circulation and heating unit 1 is shown to be partly immersed below the liquid level 5A in the general purpose cooking vessel 5. The unit 1 comprises a housing 2, an air and water inlet 3 and a vacuum pump 4 arranged in the housing 2. A first duct 9 extends between the water inlet 3 and an inlet 4a of the vacuum pump 4, in which first duct 9 a third valve 16 is positioned between the air and water inlet 3 and a first branching point 10. Please note that the third valve is optional and may - in another embodiment of the invention - be absent. Further a water sensor 14, in the shown embodiment as a flow sensor 14 for obtaining water measurements is positioned in the first duct 9 between the air and water inlet 3 and the first branching point 10. An outlet duct 17 extends from an outlet 4b of the vacuum pump 4 to an outlet 18 of the unit 1, which outlet 18 is - in the shown embodiment - provided adjacent the air and water inlet 3. A connection port 3a for connecting the air and water inlet 3 to a container 20 (Fig. 2) for consumable product is also provided in the embodiment shown in Figure 1. Please note that in dependence of the container used, such a connection port 3a may not be necessary for connection. Please further note that in another not shown embodiment hoses can be connected with one of their ends to the connection port 3a and the outlet 18, while the other ends of the hoses are immersed below the liquid level. These hoses then also form part of the self contained liquid circulation and heating unit 1. An example of such an embodiment is shown in figure 3a and figure 3b.
The self contained liquid circulation and heating unit 1 further comprises a second duct 8 connected to the first duct 9 at the first branching point 10. The second duct 8 comprises from the first branching point 10 in a serial arrangement a first valve 11, an air pressure sensor 7, a second valve 12 and an opening 13 to external surroundings. In the embodiment shown in Figure 1 it thus follows that also the inlet 4a of the vacuum pump 4, the first branching point 10, the first valve 11, the air pressure sensor 7, the second valve 12 and the opening 13 to the external surroundings are provided in a serial arrangement.
The vacuum pump 4 provided in the unit 1 is a vacuum pump 4 which is suitable for pumping both air and liquid, and due to the arrangements of ducts and valves the air pressure sensor 7 can measure the air pressure Px at the inlet 4a of the vacuum pump 4.
Within the housing 2 a heating element, preferably a thick film heating element 6 and a temperature sensor 19 are provided, such that the outlet 4b of the vacuum pump 4, the temperature sensor 19, the thick film heating element 6 and the outlet 18 of the unit 1 are provided in a serial arrangement. To obtain an even more accurate control of the temperature a further temperature sensor 21 can optionally be provided in serial arrangement between the thick film heating element 6 and the outlet 18 of the unit. The further temperature sensor 21 is also operatively connected to a controller 15 described below.
The self contained vacuum unit 1 further comprises a controller
15. The controller 15 is arranged to control the vacuum pump 4, the thick film heating element 6 and the valves 11, 12 and 16 (schematically indicated by the double arrow). The controller 15 is programmed to selectively operate in one of a plurality of different modes and can be connected with a user interface 15a for receiving user input. The controller 15 may include microprocessors, central processing units (CPUs), digital signal processors (DSPs), or any other processor(s) or controller(s) such as analog electrical circuits that perform the same functions, and employ electronic techniques and architecture. Any type of processor may be used such as dedicated or shared one. The processor is typically under software control for example, and has or communicates with a memory that stores the software and other data such as parameters, user preferences (e.g. temperatures, flow and pressure ranges), and/or equipment settings. The memory may be any suitable type of memory where data are stored. The memory may also store application data as well as other desired data accessible by the controller/processor for configuring it to perform operational acts in accordance with the present systems and methods. One or more of the described components such as sensors, processors, etc., may all or partly be a portion of a single (fully or partially) integrated unit. Alternatively, instead of being integrated in a single device, parts may be distributed between multiple devices. Apart from the components shown, also other components can be present optionally linked to the controller 15. Alternative or in addition to the controller 15, some or all components can be controlled by other means, e.g. mechanically or by analog electrical circuits. The modes may e.g. comprise specific settings of the valve system, heating element and/or pump. For example, the modes can be stored in a memory that can be integrated or couple to the controller. A user interface may be provided on the housing 2 of the unit 1 to operate the controller 15, or to output data of the controller 15 to. For example, to select one of the modes stored in the controller 15, or to input and/or store additional modes in the controller. Data of the controller, such as temperature, pressure, time etc. may be outputted to the user interface for information to the user. Alternatively and/or additionally, the controller 15 can be operatively connected to the respective components of the self contained liquid circulation and heating unit 1 either by for example hard wires or by any known wireless connection, such as wifi or Bluetooth, or a combination of both. For example, the unit 1, in particular the controller 15, may be connected to a mobile communications device, such as a smartphone or a tablet, on which an application may be provided for operating the controller 15. As such, the operation of the stand alone unit 1 can become flexible and user-friendly.
Further, the water flow sensor 14 and the air pressure sensor 7 are operatively hnked to the controller 15 for providing information to the controller 15 indicative of water measurements and air pressure, respectively, and the controller 15 is programmed to selectively operate in one of the plurality of different operating modes amongst other things based on the measurements received.
In the embodiment shown in Figure 1 a user can input via the user interface 15a that the unit 1 is functioning in a heating mode for circulating and heating the liquid in the cooking vessel 5. In this mode the controller closes the first and second valves 11, 12 and opens the third valve (if present). In case a user does not select the heating mode and the water sensor 14 detects water in the first duct 9, the controller 15 automatically puts the unit 1 in the heating mode. In this mode the controller 15 activates the vacuum pump 4 which draws in liquid via the water and air inlet 3, which liquid passes through the temperature sensor 19 to the thick film heating element 6. Depending on the desired temperature for cooking (e.g. input by the user or stored in a memory of the controller) and the temperature measured by the temperature sensor 19 and/or temperature sensor 21 the thick film heating element 6 and/or the pump 4 is controlled accordingly. Heat regulation of the circulating liquid can be done by controlling the heating element 6 and/or by controlling the vacuum pump 4, By controlling the heating element 6, the temperature can be adapted to provide more or less heat to the liquid. By controlling the vacuum pump 4, in particular the pump speed, by increasing or decreasing the pump speed, the temperature of the circulating liquid can be regulated as well. After passing through the thick film heating element 6 the liquid, for example heated liquid, is ejected from the outlet 18 to below the liquid level 5A in the cooking vessel 5. Due to the operation of the vacuum pump 4 drawing in and ejecting liquid causes a circulation of the liquid in the cooking vessel 5 as a result of which the temperature of the liquid in the cooing vessel will become at least substantially uniform. Thus in this heating mode the first valve 11 and optionally the second valve 12 are closed. These valves are also closed in other situation in which the water sensor 14 detects water in the first duct 9.
In Figure 2 an embodiment of the unit 1 is shown in which the unit 1 functions in a vacuum mode and that the unit 1 functions as a vacuum system for delaying spoilage of a consumable product in a container 20 by means of a low pressure environment. A user connects the container 20 to the unit 1, in the shown embodiment via the connection port 3a and via the user interface 15a the user can input to the controller that he or she wishes to activate the unit 1 for evacuating the interior of the container 20 in the vacuum mode. In this vacuum mode the heating element 6 is deactivated and preferably the first valve 11 is open. Depending on the intended low pressure in the container desired for delaying spoilage of the consumable product and the air pressure measured by the air pressure sensor 7 the controller 15 controls the vacuum pump 4 for reaching the desired low pressure. Please note that by connecting the container 20 to the outlet 18, instead of to the inlet 3, the vacuum pump 4 can also to raise the pressure inside the container 20 or introduce smoke or other gases or vapours into the container 20. Please note that the connection port 3a can comprise a sensor indicating connection of the unit 1 to a container 20 and for activating the vacuum pump 4 only in case a connection has been established. As such, the unit 1 can be smart controlled, and may only operate when a container 20 is connected, via a hose or via another connection element. This obviates use of the vacuum pump when no container is connected, and may also obviate misuse. Further, the lifetime of the vacuum pump may increase.
Also, the outlet 18 can be provided with a connection port 18a which can comprise an outlet sensor indicating connection of the unit 1 to a container 20. In case both connection ports 3a and 18a with their sensors are used, the controller 15 can control the functioning of the unit 1 such that when it is indicated that a container 20 is only connected to the inlet 3 the controller 15 controls the unit 1 to lower the pressure inside the container. In case it is indicated that a container 20 is only connected to the outlet 18 the controller 15 then controls the unit 1 to raise the pressure inside the container 20 or to introduce for example a vapour into the container. In case it is indicated that both the inlet 3 and the outlet 18 are connected to, for example, hoses, then the controller 15 controls the unit 1 such that a sous vide circulation takes place. Preferably the connector ports 3a and 18a are provided with water detection sensors operatively connected to the controller 15, such that when at both the inlet 3 and the outlet 18 water is detected the controller 15 controls the unit 1 such that a sous vide circulation takes place. Also Figure 2 has not been drawn to scale. The container 20 can be (much) larger than the unit 1, which can be a hand held device.
Thus the unit 1 can function as a circulation and heating unit for e.g. cooking products as well as a vacuum system for delaying spoilage of a consumable product.
For maintenance or in case the air pressure sensor accidently or for any other reason has come into contact with water the controller 15 can control the unit 1 to function in a drying and cleaning mode for drying and cleaning of at least the air pressure sensor 7. In this drying and cleaning mode the third valve 16 (if present) is closed and the first and second valves 11, 12 are opened. The vacuum pump 4 is then activated during a drying and cleaning period so that ambient air can be drawn in from the opening 13 and pass through the air pressure sensor 7 thereby (hying and cleaning it.
Figure 3a shows an embodiment of the unit 1 in which the housing 2 of the unit 1 can be at a different location than the container 20 for low pressure storing, or the general purpose cooking vessel 5 for sous vide cooking. Then, an adapter 22 is provided on which end ports 3b, 18b can be provided that are via a, preferably flexible, hose 23 connected to the connector ports 3a and/or 18a on the housing 2. The housing 2 is provided with a vacuum pump 4, an inlet 3, with connector port 3a, an outlet 18, with connector port 18a and an opening 13 to the environment similarly as described in relation to figure 1. Advantageously, on the housing 2, the inlet 3 and the outlet 18 are positioned close to each other or adjacent to each other such that a connector 24 can easily be coupled to both the connector ports 3a, 18a to establish a connection with the inlet 3 and the outlet 18 at once. The connector 24 may be coupled to a hose 23 that is, at its other end, provided with the adapter 22. The adapter 22, in particular the sous-vide adapter, is configured for at least partially be immersed into water below the water level 5A of the general purpose cooking vessel 5. The adapter 22 is also provided with an end inlet port 3b and an end outlet port 18b. Advantageously, the end inlet port 3b and the end outlet port 18b are spaced apart on the adapter 22 as to induce circulation of the water and to improve a more homogenous temperature distribution in the water of the vessel 5. A bracket 25 or any other mounting structure, e.g. a magnetic element, or a suction cup, or a push-button, etc. can be provided to hold the adapter 22 into the water. For example, a rod can be provided that spans the vessel 5 and can be mounted to the wall of the vessel 5. To such a rod, the adapter 22 can be supported, but also bags with food can be supported by the rod such that the bag(s) can be immersed into the water for the sousvide cooking. Alternatively, the adapter 22 can be embodied differently, as shown in fig. 3b, e.g. as a floating element from which two hoses extend at the end of which the end inlet port 3b or the end outlet port 18b is provided, which end ports 3b, 18b are submerged in order to circulate the liquid in the vessel 5. Advantageously, the end inlet port 3b and the end outlet port 18b are at a distance from each other to improve circulation of the liquid.
Figure 4 shows an embodiment in which the stand alone unit 1 now comprises an adapter 22 for providing low pressure into the container 20. Then, only the inlet 3 is needed and the connector 24 can be sufficiently large to couple only with the inlet connector port 3a. Alternatively, the connector 24 can couple, as in the embodiment of figure 3, with both the inlet connector port 3a and the outlet connector port 18a, but is then configured to close the outlet connector port 18a, A flexible hose 23 may connect the connector 24 with the adapter 22 at its other end, wherein the adapter 22 is configured to connect with an opening, preferably provided with a valve onto the container 20. The container 20 can be a rigid or deformable vessel or a flexible bag, or any other variant. After the inside of the container 20 is provided with low pressure, the adapter 22 can be removed from, preferably the valve, of the container 20 to seal of the container 20 such that consumable goods may be preserved longer.
Figure 5a shows a further alternative of the vacuum unit 1. Here, a smoke generator 26 is coupled to housing 2 of the unit 1 via a hose 23b. An adapter 22a of the hose 23b can be coupled to the smoke generator 26, and at the other end of the hose 23b the connector 24 is provided that couples with the outlet connector port 18a. In an embodiment, the same connector 24 can also couple to the inlet connector port 3a, but in another embodiment, a different connector can be provided for coupling to the inlet connector port 3a. Via a flexible hose 23c, the smoke generator 26 can be coupled with a container 20 in which consumable goods, such as food, can be contained for a smoke treatment. An adapter 22b at the end of the hose 23c is provided to connect with, preferably a valve, of the container 20, such that, after removal of the adapter 22b the container 20 can be closed.
As an alternative to figure 5a, the embodiment of figure 5b shows a self-contained unit with a smoke generator 26. In this embodiment, the smoke generator 26 is connected to the inlet connector port 3a. Then, the smoke generated by the smoke generator 26 goes through the unit 1 with the vacuum pump 4 and via the outlet connector port 18a to the container 20. This way, the smoke can be sucked towards the container 20 in a more efficient way.
In the above, the stand-alone vacuum unit 1 has been explained by means of various embodiments. It is to be understood that other accessories can be coupled to the housing of the vacuum unit as well, e.g. a baby food container, a wine stop for a bottle, a blender, etc.
While the invention has been described in particular detail with reference to specific exemplary embodiments thereof, it should also be appreciated that numerous modifications and alternative embodiments may be devised by those having ordinary skill in the art without departing from the scope of the present disclosure as defined by the enclosed claims
Claims (13)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL2020706A NL2020706B1 (en) | 2018-04-03 | 2018-04-03 | Self contained liquid circulation and heating unit and vacuum system for delaying spoilage of a consumable product comprising such a unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL2020706A NL2020706B1 (en) | 2018-04-03 | 2018-04-03 | Self contained liquid circulation and heating unit and vacuum system for delaying spoilage of a consumable product comprising such a unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| NL2020706A NL2020706A (en) | 2019-10-09 |
| NL2020706B1 true NL2020706B1 (en) | 2019-11-21 |
Family
ID=66589830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL2020706A NL2020706B1 (en) | 2018-04-03 | 2018-04-03 | Self contained liquid circulation and heating unit and vacuum system for delaying spoilage of a consumable product comprising such a unit |
Country Status (1)
| Country | Link |
|---|---|
| NL (1) | NL2020706B1 (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160037956A1 (en) * | 2013-02-14 | 2016-02-11 | Jeff Wu | Circulator cooker |
| CA2892115C (en) * | 2014-05-20 | 2018-07-24 | Sunbeam Products, Inc. | Food cooking system |
| JP6552726B2 (en) * | 2015-05-11 | 2019-07-31 | イントロパック カンパニー リミテッド | Vacuum low temperature cooker |
-
2018
- 2018-04-03 NL NL2020706A patent/NL2020706B1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| NL2020706A (en) | 2019-10-09 |
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