WO2022048725A1

WO2022048725A1 - An apparatus for hand sanitizing, use hereof and a method of controlling an apparatus for hand sanitizing

Info

Publication number: WO2022048725A1
Application number: PCT/DK2021/050276
Authority: WO
Inventors: Paul Teichert
Original assignee: Danish Clean Water A/S
Priority date: 2020-09-07
Filing date: 2021-09-07
Publication date: 2022-03-10
Also published as: EP4210547A1; CN116234588A

Abstract

An apparatus (1) for hand sanitizing and a method of controlling an apparatus for hand sanitizing, said apparatus comprising a sanitizing zone (6) that is configured for receiving a user's hand (30). At the sanitizing zone (6) the apparatus comprises spraying means (8) for spraying a sanitizing liquid onto the user's hand (30) from at least two different directions, when the user's hand is at least partly received at the sanitizing zone. The spraying means for spraying sanitizing liquid is configured for producing a spray of said sanitizing liquid from said at least two different directions, opposed to each other, and the apparatus (1) comprises a control unit (24) for controlling said spraying of said sanitizing liquid, based on a 3 -dimensional detection of the user's hand (30) in relation to said sanitizing zone (6).

Description

AN APPARATUS FOR HAND SANITIZING, USE HEREOF AND A METHOD OF CONTROLLING AN APPARATUS FOR HAND SANITIZING

Field of the invention

The present invention relates in a first aspect to an apparatus for hand sanitizing, e.g. facilitating that a person, which will be referred to as a user in the following, may apply a hand sanitizer to the user’s hand or hands.

Furthermore, the invention relates in a second aspect to a use of such an apparatus.

Even further, the invention relates in a third aspect to a method of controlling an apparatus for hand sanitizing.

Background of the invention

Although the use of hand sanitizing has been widely known for many years, in particular in medical, health and hospital environments, in food manufacturing facilities, etc., the importance has grown considerably in recent years due to certain diseases and epidemics, in particular as a consequence of the outbreak of the COVID-19 epidemic, which has made increased hygienic measures necessary in everyday scenarios among people in general and in a global context, e.g. when shopping, commuting, travelling, visiting and/or working in restaurants, hotels, factories, etc. and in general when visiting public locations, buildings, institutions, etc.

Already known apparatuses for facilitating hand sanitizing may be manually operated by the user, e.g. by the user holding one hand under an outlet, a nozzle, a pipe or the like and operating a push knob, a lever or the like with the other hand or the e.g. elbow to operate a manual pump, whereafter a portion of the hand sanitizer is delivered to the hand placed under the outlet, the nozzle, the pipe or the like. Subsequent to this, the user may distribute the hand sanitizer on both hands and may rub the hand sanitizer onto the surface of the hands in order to achieve a desired sanitizing effect. Further, apparatuses for facilitating hand sanitizing are known, which are more or less automated, e.g. based on various sensors being used for detecting the presence of a user’ s hand or hands under an outlet, whereafter a power operated pump delivers a portion of hand sanitizer into the hand of the user. Again, the user subsequently must distribute the hand sanitizer on both hands and rub the hand sanitizer onto the surface of the hands to achieve a satisfactory sanitizing effect.

Thus, in any instance the user will have to make a stop, when using the already known hand sanitizing apparatuses, e.g. walk up to such an apparatus, place at least one hand under the sanitizer outlet, e.g. in a horizontal position, and when a portion of hand sanitizer has been delivered, the user will normally keep standing, while distributing the sanitizer and rubbing it over the hands. Thus, this means that each user will normally occupy such a hand sanitizing apparatus for a period of time, before the next user may use the apparatus. Hence, the hand sanitizing apparatus will form a hindrance at e.g. an entrance, disturb the inflow of people and a queue may easily form, e.g. at an entrance to a shop or other premises, which means that people that may be in a hurry, may be tempted to enter the e.g. shop without sanitizing their hands, which is detrimental to optimal health conditions in society as a whole.

It is also noted that in connection with more or less automated already known hand sanitizing apparatuses, the sensors and/or the control arrangement used are of such a kind that a quick release of hand sanitizer is not provided, e.g. due to delay in the sensor arrangement or in the control arrangement, which has the effect that a potential user holding one hand under e.g. a nozzle, will have to wait for some time before receiving a release of hand sanitizer and in some case even may be confused by the long delay, remove the hand before hand sanitizer has been released in the belief that the apparatus is empty, whereafter a portion of sanitizer is released (and wasted), and whereafter the user then subsequently again places the hand under the nozzle, etc. An example of an automatic dispenser for hand sanitizer lotion is disclosed in US 2012/0085780 Al, which relates to an apparatus that is powered by a rechargeable battery pack, which is rechargeable via solar cells. The sanitizer is stored in a liquid storage bag, from which the fluid sanitizer can be delivered via a dispensing nozzle to a position above a lower tray that is arranged to catch any excess amount of the sanitizer fluid. The apparatus is sensor activated by a sensor that detects a hand being positioned between the dispensing nozzle and the tray. Thus, when using this prior art apparatus, the user will, as it has been described above in general, need to stop up in front of the apparatus, reach into the space between the dispensing nozzle and the tray with the palm of the hand facing upward, wait for the portion of sanitizer to be delivered into the palm of the hand and subsequently distribute the sanitizer over the surface of both hands by e.g. rubbing the hands. The user may potentially begin to walk away along the intended route while e.g. distributing the sanitizer and rubbing the hands, but many will be standing still for a short period before maneuvering around or away from the hand sanitizing apparatus and all will be at least slowed down when entering e.g. a building, a premise, a shop or the like, where such a prior art sanitizing apparatus is placed and desirably needs to be used by all persons entering such an .e.g. building, premise, shop or the like.

Summary of the invention

It has been realized that there is a need for improvements in apparatuses for hand sanitizing, e.g. hand sanitizer dispensers, which facilitates an improved, e.g. quicker flow of people using and passing such apparatuses for hand sanitizing, while simultaneously providing an improved sanitizing effect on the users’ hands. Furthermore, it has been realized that there is a need for improvements in apparatuses for hand sanitizing, e.g. hand sanitizer dispensers, which may provide an increased degree of user friendliness. Thus, the present invention has been devised.

The invention relates in a first aspect to an apparatus for hand sanitizing, said apparatus comprising a sanitizing zone that is configured for receiving a user’s hand, wherein said apparatus at said sanitizing zone comprises spraying means for spraying a sanitizing liquid onto the user’s hand from at least two different directions, when the user’s hand is at least partly received at the sanitizing zone, said spraying means for spraying sanitizing liquid is configured for producing a spray of said sanitizing liquid from said at least two different directions, opposed to each other, and wherein said apparatus comprises a control unit for controlling said spraying of said sanitizing liquid, based on a 3-dimensional detection of the user’s hand in relation to said sanitizing zone.

Hereby, it is achieved that the apparatus is being alerted of the incoming hand as well as its position and that on the basis of this the time for the hand to reach an appropriate position, e.g. where the hand is in a suitable position in relation to spraying nozzles, can be estimated or determined. Thus, with knowledge of the necessary time for activation of the spraying means, the time when the spraying is being initiated can be determined to achieve that the user’s hand is applied with the sanitizing liquid at a desired location on the user’s hand and on both sides of the user’s hand, while the hand is passing through the sanitation zone. Thus, the user need not make a stop, when using the apparatus according to the invention, as the sanitation liquid may be applied to user’s hand at the appropriate moment, when the user lets his or her hand pass through the sanitation zone.

Thus, in connection with an apparatus according to the invention it may be achieved that a user may use the apparatus while passing the apparatus, e.g. by walking past the apparatus and letting the hand that is near the apparatus, pass into the sanitizing zone and out of it again, as the user walks by. It will be understood that the apparatus may be configured such that the sanitizing zone will be at a height that will suit a large range of people, e.g. people having a height in a large range around normal height.

However, it will be understood that people having a larger height may bend down slightly and that people of lesser height may raise the arm slightly (or more), whereby the hand, while still being oriented with the palm in an essentially vertical direction, may pass into the sanitation zone, e.g. with the fingers pointing slightly forward. Also, it will be understood that the user may lift the arm and let the hand enter the sanitation zone for example from above. Thus, it will be understood that persons having a lower height may use the apparatus as well, e.g. children, wheelchair users, etc.

In general, it will be understood that the user will position and/or move the hand such that when being in the sanitation zone, the palm will be facing one side of the sanitation zone, the back of the hand will be facing the other side and the fingers will be essentially extended.

It will furthermore be understood that when the apparatus according to the invention is configured to be placed at a place, where potential users are walking past, two or more apparatuses may be placed with a suitable distance to each other, which may allow a user to sanitize both hands when passing between them.

It is furthermore noted that the apparatus may be used by a user, when the user is passing one way, but that the user may as well use the apparatus in the opposite direction, since the function of the apparatus preferably is independent of how and from which direction the user’s hand is entered into the sanitation zone. Thus, the hand may be entered from one horizontal direction (and may be removed the same way, if desired), the hand may be entered from the opposite horizontal direction and the hand may be entered from e.g. above or any other direction. Thus, the apparatus is extremely versatile as regards its uses. Also, it is noted that the user may move the hand, while it is within the sanitation zone, restricted only by e.g. the elements forming the sanitation zone.

According to an embodiment, the sanitizing liquid being used may be any liquid, fluid, etc. that is compatible with the apparatus, e.g. which has characteristics such as a viscosity that is suitable for the spraying means in order to produce the sprayed liquid, the bursts of spray, the sprayed aerosols and/or the sprayed mist in the sanitation zone, depending on the particular embodiment. Such liquids or fluids may be liquids or fluids for disinfection, cleansing of hands, antiseptic liquids or lotions, biocide liquids, organic sanitizing liquids, etc.

Hence, it is noted that in connection with the present invention, the term “sanitizing” and the term “sanitizing liquid” will be understood in their broadest meaning and will cover examples as mentioned above.

An example of a sanitizing liquid that suitably may be used in connection with particular embodiments of the present invention, e.g. where a mist is produced by the spraying means, is a hypochlorous acid hand sanitizer such as the sanitizer known as Neuthox ®.

According to an embodiment, the spraying means may comprise a sensor device for detecting presence of the user, e.g. the user’s hand, said sensor device providing input to said control unit.

Hereby, the apparatus may be controlled via the control unit and based on input from the sensor device to operate the spraying means to provide e.g. sprayed liquid, bursts of sprayed liquid, a mist of sanitizing liquid etc. at the appropriate time, e.g. when the user enters or passes his or her hand in the sanitation zone. Also, based on such sensor device input, the control unit may e.g. end the spraying or control the spraying to take place at an appropriate period of time. The sensor input may also be used for controlling other elements, such as e.g. indicator lights or the like, that may be activated when a potential user is within a predefined distance, for example in order to alert the potential user.

It is noted that the sensor device may comprise a single sensor arranged at the apparatus. According to an embodiment, the sensor device may comprise two sensors, e.g. one arranged at each side of the sanitizing zone, but it is noted that more than two sensors may be used. The sensor device may be of any suitable type, e.g. operating by optical means, electromagnetic means, etc. as it will be apparent to a skilled person.

According to an embodiment, said sensor device may comprise a sensor device positioned at one or each side of said sanitizing zone, said sensor device being configured for 3-dimensional detection of the user’s hand in relation to said sanitizing zone.

Hereby, it may be achieved in an efficient manner that the apparatus is being alerted of the incoming hand in the sanitation zone as well as its position, due to the 3- dimensional detection on both sides of the sanitation zone. Thus, on the basis of this, the time for the hand to reach an appropriate position, e.g. where the hand is in a suitable position in relation to spraying nozzles, etc. can be estimated or determined. Thus, with knowledge of the necessary time for activation of the spraying means, the time when the spraying is being initiated can be determined to achieve that the user’s hand is applied with the sanitizing liquid at a desired location on the user’s hand, while the hand is passing through the sanitation zone. It is noted that such a sensor device may be positioned e.g. below the sanitizing zone.

According to an embodiment, the sanitizing zone may comprise two dispenser side elements, which are arranged opposite to each other to form at least part of said sanitizing zone that is configured for receiving a user’s hand.

Hereby, the sanitizing zone may be designed in a convenient and practical manner, whereby at least part of the spraying means may be integrated in such side elements. Further, such side elements may be configured as extensions of the underlying part of the apparatus, e.g. a housing or the like, and with a similar curvature, etc. which may allow this upper part of the apparatus to be designed in such a manner that it will not be considered an obstacle by passing persons, but simply an extension of the whole structure. It is noted that one or both of the two dispenser side elements may comprise individual elements, e.g. parallel bars, finger like elements or the like, that together may form each side element.

According to an embodiment, the two dispenser side elements may comprise said spraying means arranged for spraying sanitizing liquid, e.g. in a spray burst, in a mist or in any other manner onto the user’s hand, when it is present in or passing the sanitizing zone.

Hereby, the spraying of a sanitizing liquid onto the user’s hand from at least two different directions may be effected in an expedient manner.

According to an embodiment, the apparatus may comprise indicators arranged at or near said sanitizing zone, which indicators may be controlled to be activated constantly, e.g. by constantly flashing, or be controlled to be activated upon presence of a potential user.

Hereby, it may be achieved that a potential user that is walking in a direction generally towards the apparatus or at least may be in a position to observe the apparatus, may be alerted of the apparatus and its function as a hand sanitizer. Such indicators, e.g. light indicators such as LED lights may be arranged in various manners and may include sequential flashing lights that direct the potential user’s eyes in the direction of the sanitation zone so that the user may receive indications that lead to an intuitive understanding of how the apparatus is intended to be used. Furthermore, indicator arrangements such as panels, LED panels, etc, may be used as well in order to provide indications to the user, e.g. indications leading to an intuitive understanding of the apparatus and its use.

According to an embodiment, the apparatus may be arranged with a dispenser head at the top, which comprises said spraying means and one or more of

- said control unit - a power supply,

- a pump,

- one or more indicators,

- a controllable valve, and/or

- a sensor device.

Hereby, it is achieved that major components and/or components involved in control, etc. may be contained in the dispenser head that may be releasably coupled to a supporting structure. Thus, the dispenser head may be removed for example for service, for change of batteries in a power supply, for cleaning, etc. The dispenser head may be coupled to the supporting structure by e.g. hinges, by a bayonet coupling, by a threaded connection, by an extendable structure, etc.

It is noted in this connection that the dispenser head in addition to indicator lights, indicator panels, LED light arrangements or the like may comprise optical means such as acrylic, plexiglass or other plastic parts for providing optical and possible colour effects in combination with indicator lights, other light sources, etc. in order to provide for example an improved user-friendliness and user appeal.

According to an embodiment, the apparatus may comprise a base stand, which has a height adapted for a floor stand, for a table stand or for being supported otherwise, e.g. on a wall or a piece of furniture, etc.

Hereby, the apparatus may be provided in different variations, e.g. for use on floors, for use on tables and other parts, etc. and where the height of the e.g. dispenser head may be suitable for various uses. Even further, it is noted that the base stand may be adjustable as regards the height so that even further flexibility and versatility may be achieved. Hence, it will be understood that the apparatus thus may be adjusted to suit users such as children, wheelchair users, etc. According to an embodiment, the base stand may be configured for containing a supply of said sanitizing liquid, for example one or more bags, containers or the like.

Hereby, it is achieved that a supply of said sanitizing liquid, for example one or more bags, containers or the like may easily be replaced, when empty, by simply removing the dispenser head from the base stand and replacing the e.g. empty bag with a filled bag. It is noted in this respect that a supply line, e.g. a pipe or tube, to the dispenser head may be connected to the supply of sanitising liquid, e.g. bags, by a coupling, e.g. a quick connect coupling that may be specific to this particular use in order to assure that only proper sanitizing liquid with the correct characteristics may be used in connection with the specific apparatus according to the invention.

In this connection it is noted that according to an embodiment the apparatus may be able to communicate with other devices, communication means, etc, for example via a Bluetooth connection, via a Wi-Fi connection, etc. and that thus the need for replacing a sanitizing liquid bag may be communicated to a service person in this way, e.g. via a Bluetooth connection, via an internet connection, etc.

Even further, it is noted that according to an embodiment, the apparatus may comprise means for preventing a loss of the apparatus, e.g. a tracking device incorporated in the apparatus, which makes it possible to retrieve the apparatus in case it should be misplaced or stolen.

According to an embodiment, the spraying means may comprise one or more spraying nozzles arranged at each side of said sanitizing zone.

Hereby, the spraying means may be arranged such, e.g. with nozzles placed in a suitable pattern that the entire surface of a user’s hand may receive sprays of sanitizing liquid or may come in contact with the mist of aerosols that may be provided by the e.g. array of nozzles. It is noted in this context that the nozzles are made and designed to correspond to the pressure of the sanitizing liquid that is being delivered, such that the liquid may be sprayed in a suitable manner, e.g. as squirts or bursts of sprayed liquid or sprayed out as a mist, e.g. in the form or aerosols. It is further noted that in case the sanitizing liquid is being sprayed out as a mist, e.g. a burst of mist, and due to the fact that said mist is directed to the user’s hand within a relatively confined space, i.e. the sanitation zone, most of this will be applied to the user’s hand, including otherwise rather inaccessible skin areas of the hand as it has been explained above and essentially no surplus liquid will be formed. When the applied sanitation liquid is in the form of a mist, e.g. aerosols, that e.g. float in the air, any aerosols that may not reach the user’s hand, will evaporate and effectively no surplus will fall down, e.g. on the apparatus, the floor, etc. However, in the rare case that any droplets should fall down on the dispenser head bottom, a grid or the like may be arranged here to collect and accommodate such surplus liquid.

According to an embodiment, the spraying means may comprise one spraying nozzle arranged at each side of said sanitizing zone, for example near a lower part of the sanitation zone and directed in an angle upwards, e.g. for example within an angle interval of 0° to 90° or within an angle of 5° to 85° in relation to the vertical direction, or the angle may for example be in an interval around 30°, in an angle interval around 45° or in an angle interval around 60° in relation to the vertical direction or in other suitable angle intervals.

It is noted that in an embodiment of the invention, the sanitizing liquid is delivered to the spraying nozzles by the pump with a pressure that effect the sanitizing liquid being sprayed in a predefined manner, e.g. as squirts or bursts of sprayed liquid or as a mist, e.g. as aerosols, whatever the case may be. Such a pressure may be a pressure up to 5 bar, or it may be above 5 bar, above 6 bar, above 8 bar, above 10 bar, etc. As an example, it is mentioned that the pressure may be within an interval from 6 bar to 8 bar or an interval from 8 bar to 12 bar, etc. However, the pressure may be dependent on the actual sanitizing liquid and/or the actual nozzle being used. Furthermore, it is noted that the pressure in combination with the duration of the time that the sanitation liquid is delivered to the nozzle is of importance when providing a desired spray of sanitizing liquid, e.g. as squirts or bursts of sprayed liquid or as a burst of aerosols to deliver a mist that will serve to effect the sanitizing effect, e.g. a short duration in combination with a high pressure.

Furthermore, it is noted that the apparatus according to an embodiment of the invention may comprise further indicators, e.g. indicator lights, for service purposes, e.g. indicators alerting a person handling the service of the apparatus that e.g. the sanitizing level is low, that the power level is low, etc. where after the person in charge may replace the sanitizing liquid container, e.g. bag, replace the battery pack, etc. or perform other service jobs.

In this connection it is noted that according to an embodiment the apparatus may be able to communicate with other devices, communication means, etc, for example via a Bluetooth connection, via a Wi-Fi connection, etc. and that thus the need for replacing a sanitizing liquid bag may be communicated to the person in charge in this way, e.g. via an internet connection, via a Bluetooth connection or the like.

According to an embodiment, said spray of said sanitizing liquid may comprise a mist of said sanitizing liquid.

Hereby it may be achieved that, when the hand is in the sanitation zone, the spraying means for spraying sanitizing liquid will direct a mist, e.g. comprising aerosols of sanitizing liquid, a curtain of aerosols or the like, towards both sides of the hand, controlled by the control unit, whereby a film of sanitizing liquid will be formed on the surfaces of the hand. It is noted that due to the sanitizing liquid being directed as a mist, e.g. comprising aerosols of sanitizing liquid, towards the hand, the e.g. aerosols will flow in and through the air and reach areas that otherwise are difficult to reach by spraying, e.g. skin areas between the fingers of the user, etc. Thus, an improved sanitizing effect is achieved hereby. It will be understood that a user may be standing still while using the apparatus, but in case the sanitation zone is essentially vertically oriented, and due to the control unit, which serves to provide a suitable amount of sanitation liquid at each hand while passing, a user may conveniently use the apparatus while walking past. After having passed the apparatus, the user may rub the hands, which may enhance the sanitizing effect, e.g. due to the distribution of the liquid, but due to the application of the sanitation liquid in the form of a mist, e.g. a burst of mist, which provides a film on the hand, a satisfactory sanitation may be effected without rubbing the hands afterwards.

According to an embodiment, said sanitizing zone may be configured for receiving a user’s hand that is oriented in an essentially vertical direction.

Thus, in connection with this embodiment of the apparatus according to the invention it may be achieved that a user may use the apparatus while passing the apparatus, e.g. by walking past the apparatus and conveniently letting the hand that is near the apparatus, pass into the sanitizing zone and out of it again, as the user walks by. It will be understood that the apparatus may be configured such that the sanitizing zone will be at a height that will suit a large range of people, e.g. people having a height in a large range around normal height.

However, it will be understood that people having a larger height may bend down slightly and that people of lesser height may raise the arm slightly (or more), whereby the hand, while still being oriented with the palm in an essentially vertical direction, may pass into the sanitation zone, e.g. with the fingers pointing slightly forward. Also, it will be understood that the user may lift the arm and let the hand enter the sanitation zone from above. Thus, it will be understood that persons having a lower height may use the apparatus as well, e.g. children, wheelchair users, etc. In general, it will be understood that the user will position and/or move the hand such that when being in the sanitation zone, the palm will be facing one side of the sanitation zone, the back of the hand will be facing the other side and the fingers will be essentially extended.

It is noted that when it is stated that a user’s hand is oriented in an essentially vertical direction, it will be understood that the hand, which may be in a relaxed state, e.g. far from forming a plane structure, that may be used for defining precise directions and planes, may be oriented within a relatively wide range that may in practice be limited only by the elements of the apparatus for hand sanitizing that defines the sanitation zone, such as for example side walls or the like.

According to an embodiment, said sanitizing zone may be configured for receiving a user’s hand that is oriented in an angle in relation to an essentially vertical direction.

In a second aspect, the invention relates to use of an apparatus according to any one of claims 1-13, wherein said apparatus is positioned at or near a walking area, at or near a passing area or the like, and where optionally one further of said apparatus may be positioned with a distance to said apparatus such that a user may pass between said apparatus and said further apparatus, such that the user may sanitize one or both hands while passing.

As mentioned above, a user may use the apparatus according to the invention while passing the apparatus, e.g. by walking past the apparatus and letting the hand that is near the apparatus, pass into the sanitizing zone and out of it again, as the user walks by. When the apparatus according to the invention is configured to be placed at a place, where potential users are walking past, two or more apparatuses may be placed with a suitable distance to each other, which may allow a user to sanitize both hands when passing between them or the user may sanitize one hand only, e.g. in case the user is carrying something in the other hand. However, the option of sanitizing both hands is provided, which in this way may be performed in a relatively quick manner while passing between the two apparatuses.

In a third aspect, the invention relates to a method of controlling an apparatus for hand sanitizing, said apparatus comprising a sanitizing zone that is configured for receiving a user’s hand, said method comprising

- detecting the user’s hand when entering the sanitizing zone,

- determining the position 3 -dimensionally within the sanitizing zone, and

- based on the determined position within the sanitizing zone determining an initiation time for activation of spraying means for spraying sanitizing liquid onto the user’s hand.

Hereby, it is achieved that the apparatus is being alerted of the incoming hand as well as its position and that on the basis of this the time for the hand to reach an appropriate position, e.g. where the hand is in a suitable position in relation to spraying nozzles, can be estimated or determined. Thus, with knowledge of the necessary time for activation of the spraying means, the time when the spraying is being initiated can be determined to achieve that the user’s hand is applied with the sanitizing liquid at a desired location on the user’s hand, while the hand is passing through the sanitation zone.

According to an embodiment, said activation of spraying means may comprise activation of a pump and/or activation of a controllable valve.

According to an embodiment, the step of determining the position 3 -dimensionally within the sanitizing zone may comprise applying an electric field detecting using an electric field detecting arrangement positioned at or in at least one dispenser side element, which defines one side of the sanitizing zone and/or at or in a bottom part of said sanitation zone, e.g. in a bottom part of the dispenser head.

According to an embodiment, the step of determining the position 3 -dimensionally within the sanitizing zone may comprise applying an electric field detecting using an electric field detecting arrangement positioned at or in two opposing dispenser side elements, which defines the sanitizing zone.

According to an embodiment, said activation of spraying means for spraying sanitizing liquid may comprise a burst or a series of bursts of sanitizing liquid delivered via one or more nozzles.

According to an embodiment, said method is applied in connection with an apparatus that is configured according to any one of claims 1-13.

Figures

The invention will be explained in further detail below with reference to the figures of which

Fig. 1 shows in a schematic manner an example of an embodiment of an apparatus according to the invention, seen in a front view,

Fig. 2 is an example of components of an apparatus according to an embodiment of the invention,

Fig. 3 shows an example of an embodiment corresponding to Fig. 1, but adapted to be positioned on e.g. a table,

Fig. 4 shows an example of an embodiment corresponding to Figs. 1 and 3, but adapted to be positioned on e.g. a wall,

Fig. 5a-c show in an enlarged view examples of a dispenser head, seen in a front view,

Fig. 6 shows in an enlarged view a further example of a dispenser head, seen in a front view, together with the top of the base stand, Fig. 7 shows a further embodiment of an apparatus according to the invention, seen in a perspective view,

Fig. 8 shows the apparatus shown in Fig. 7 in a front view,

Figs. 9a, b show the lower part of an embodiment of the apparatus to illustrate a height adjustment option,

Fig. 10 shows a user sanitizing one hand in an apparatus according to an embodiment of the invention,

Fig. 11 corresponds to Fig. 8, but further showing examples of bursts of spray,

Fig. 12 shows an example of use of apparatuses according to the invention in a location, where a plurality of persons are passing,

Figs. 13a-c illustrate various manners in which an apparatus for hand sanitation may be used,

Fig. 14 shows in a schematic manner components of an embodiment of a sanitizing apparatus according to the invention,

Fig. 15 illustrates sensor devices in an embodiment of a sanitizing apparatus according to an embodiment of the invention seem from above,

Fig. 16a,b show schematically a sensor device using an electric field technology for detecting a user’s hand, and

Fig. 17 shows various examples of positioning one or more sensor devices in an apparatus for hand sanitizing.

Detailed description

An exemplary embodiment of an apparatus 1 according to the invention is shown in a schematic manner in Fig. 1, seen in a front view. In this embodiment the apparatus is configured for standing on e.g. a floor and has a base stand 2 standing on a support 4, where the base stand 2 carries a dispenser head 12. This dispenser head 12 defines a sanitizing zone 6, e.g. a zone which may be in the form of a channel, groove or the like and where the hand of a user may be inserted as it will be explained later, for example with the hand and fingers pointing downwards and whereby the hand may be passed through the zone 6 from e.g. the front to the rear, while a person is passing the apparatus 1. The dispenser head 12 may have two dispenser side elements 10, arranged opposite to each other to form the sanitizing zone 6. At both of these dispenser side elements 10 spraying means 8 are arranged as indicated in Fig. 1 and as it will be explained in greater detail later on, e.g. in the form of spray nozzles or the like. The spraying means 8 serves to spray a burst of sanitizing liquid or a mist of sanitizing liquid onto a user’s hand, when passing through or otherwise being present in the sanitizing zone 6, such that e.g. a film of sanitizing liquid is received on essentially all accessible surfaces of the hand. The burst of sanitizing liquid or mist of sanitizing liquid being sprayed by the spraying means 8 are such that essentially no surplus sanitizing liquid will be formed, e.g. falling down to the bottom of the sanitizing zone 6. However, if any surplus should be formed, this may escape via small holes, a small grate or the like in the bottom of the sanitizing zone 6 (not shown in Fig. 1). As furthermore indicated in Fig. 1, a supply of sanitizing liquid may be comprised in a container such as a flexible bag 18, which may be placed in the inner of the base stand 2. The base stand may contain one or more of such flexible bags 18 or other forms of containers for the sanitizing liquid.

As further indicated in Fig. 1, the apparatus 1 may comprise a sensor device 14, e.g. arranged in the dispenser head 12, which serves to detect when a potential user is getting near the apparatus and/or when a user’s hand is entering or about to enter the sanitizing zone 6. Further, the sensor device 14 may serve to correspondingly detect when a user’s hand leaves or is about to leave the sanitizing zone 6.

Even further, the apparatus 1 may comprise one or more indicators 16, e.g. lights such as LED lights or the like, which may function to draw a potential user’s attention to the apparatus 1 and/or may serve to indicate to the potential user how the apparatus is intended to be used. Such indicators, indicator lights, indicator light panels or the like may be visible for users in a 360° configuration, e.g. from all directions. The function of an apparatus according to an embodiment of the invention will be explained with reference to Fig. 2, which shows in a schematic manner an example of components of the apparatus 1.

The apparatus comprises a supply of sanitizing liquid 20, which as mentioned above may be arranged in the base stand 2 as one or more bags 18. The supply of sanitizing liquid 20 is connected via e.g. a pipe or tube to a pump 22, which may be placed in the dispenser head 12 or possibly in the base stand 2. The pump pressurizes the sanitizing liquid, when it is necessary to provide a burst of sanitizing liquid or a mist of sanitizing liquid and pumps the liquid via a pipe or a tube to the spraying means 8 that as mentioned above may comprise spraying nozzles for providing the burst of sanitizing liquid or the sanitizing mist. It is noted that the pump 22 may provide the necessary pressure when necessary, e.g. when a hand is detected in the sanitation zone 6, or the pump may be configured to maintain a certain pressure at all times, so that the e.g. burst of sanitizing liquid or mist of sanitizing liquid may be provided by allowing the already pressurized liquid to reach the spraying means 8, which may have the effect that the e.g. mist will be established quicker and that less surplus liquid will be formed. Thus, it will be understood that a controllable valve or the like (not shown in Fig. 2) may be arranged between the pump 22 and the spraying means, which controllable valve or the like will be controlled by the control unit 24 to deliver sanitizing liquid at a specified pressure for a specified period of time.

Furthermore, in Fig. 2 it is shown that a power supply 26 is provided, which may be in the form of a battery pack. This power supply is connected to the pump 26 and may provide power to other components, such as a control unit 24, a sensor device 14 and indicator(s) 16. Possibly, power may be provided to other components. For example, the power supply 26 may be connected to the supply of sanitizing liquid 20 in order to feed a supply meter with power. However, at it will be apparent to a skilled person, such a supply meter to indicate the amount of remaining liquid may be fed with power directly from the control unit 24, which will need to be connected with the supply 20 anyway in order to indicate the remaining amount of liquid. However, it is furthermore noted that in order to estimate the remaining contents of the supply of sanitizing liquid, the e.g. control unit may count the number of bursts of sanitizing liquid that has been effected since the last replacement of the sanitizing liquid bag and in this way estimate how much liquid is left. Alternatively, the control unit may keep count of the duration of bursts, in case they differ from time to time, e.g. by adding the time periods that the pump has been applied, and in this way estimate how much liquid is left. Other manners of doing this is possible, as it will be apparent to a skilled person.

As also shown in Fig. 2, the control unit 24 is connected to the pump 22 in order to control the pump, and certain signals may be sent from the pump 22 to the control unit, e.g. pressure indicator signals, etc. Further, the control unit 24 is connected to the indicator(s), which possibly may send signals back to the control unit.

It is noted that the pump 22 is configured to supply the sanitizing liquid with a pressure that will effect the sanitizing liquid to be sprayed as a burst of sanitizing liquid or as a mist, e.g. as aerosols from the spraying means 8. Such a pressure may e.g. be a pressure up to 5 bar, or it may be above 5 bar, above 6 bar, above 8 bar, above 10 bar, or even higher. As an example, it is mentioned that the pressure may be within an interval from 6 bar to 8 bar or an interval from 8 bar to 12 bar, etc. However, the pressure may be dependent on the actual sanitizing liquid and/or the actual nozzle being used. Furthermore, it is noted that the pressure in combination with the duration of the time that the sanitation liquid is delivered to the nozzle is of importance when providing a burst of sanitizing liquid, e.g. of aerosols to deliver a mist that will serve to effect the sanitizing effect, e.g. a short duration in combination with a high pressure, whereby a burst of e.g. aerosols may be delivered that will flow in and through the air to the surfaces of the user’s hand, including skin surfaces between the fingers and other skin surfaces that otherwise may be hard to reach by spraying. Furthermore, by the use of a high pressure for a short duration to produce the burst of sanitizing liquid, e.g. a mist, it is achieved that the aerosols that may not reach the user’s hand, will flow on in the air and eventually evaporate, thus leaving no surplus and effectively no dripping.

The specified period of time, where the pressure is delivered to the nozzles and where the spraying means, e.g. nozzles sprays a burst or a mist of sanitation liquid into the sanitation zone from at least two directions, may be referred to as an application time period T_a. The application time period T_a may be for example up to 0.1 sec, more than 0.1. sec., more than 0.2 sec, more than 0.5 sec, more than 0.8 sec or more than 1.0 sec.

Even further, it is noted that according to an embodiment the apparatus may be able to communicate with other devices, communication means, etc, for example via a (not shown) module for Bluetooth connection, a Wi-Fi connection, etc. Hereby, any service signals, e.g. the need for replacing a sanitizing liquid bag, low battery voltage, etc. may be communicated to the person in charge in this way, e.g. via an internet connection, via a Bluetooth connection or the like, including the ID of the specific apparatus. Also, it is noted that the individual apparatuses 1, when more than one is used, may communicate with each other. For example, based on a sensor input received at one apparatus, indicators may be activated at one or more of the others.

Also, it is noted that according to an embodiment, the apparatus may comprise means for preventing a loss of the apparatus, e.g. a (not shown) tracking device incorporated in the apparatus, which makes it possible to retrieve the apparatus in case it should be misplaced or stolen.

Furthermore, it is noted that more than one component of a particular type may be included in the example shown in Fig. 2, e.g. two pumps or more, two battery packs or more, two control units or more, etc.

Figs. 3 and 4 shows embodiments of the apparatus as shown in Fig. 1 and where thus the same reference numbers denote the same or similar features, but where in Fig. 3 the apparatus 1 is adapted for being positioned on a piece of furniture such as a table 40, thus having a shorter base stand 2 and a correspondingly adapted support 4. Correspondingly, the apparatus shown in Fig. 4 is adapted for being placed on a vertical member such as a wall 42, thus also having a shorter base stand 2 and a support 4 that as schematically shown is adapted for being fixed to the wall 42, e.g. by being fastened with screws or the like.

It is noted that embodiments having a shorter base stand and thus a lower height may also be used in connection with e.g. children, for example at schools, child institutions, etc. and that furthermore locations, institutions, etc. where wheelchair users visit, may have advantage of embodiments with a lower base stand height. In connection with this, it is noted that as it will be explained in detail later, the apparatus according to embodiments of the invention may be configured to be height adjustable, which also may be useful in connection with users such as children, wheelchair user, etc.

In Fig. 5a an example of a dispenser head 12 is shown in an enlarged view, seen in a front view. Here, it is shown that a number of nozzles 50, e.g. two, are positioned at each of the dispenser side elements 10 to form the spraying means 8. As mentioned, there may be only one at each side or there may be more than two at each side. Furthermore, it is shown that the indicator 16 may comprise a number of indicator lights 52, of which only a few are shown in Fig. 5 for illustrative purposes. As it will be clear to a skilled person, such indicator lights 52, e.g. LED lights, may be arranged in a multitude of ways, patterns, etc. in order to fulfil the purpose of providing information to the user.

Even further, a vertical plane 56 is shown in Fig. 5a to illustrate the manner in which a user’s hand may be oriented when it is received in the sanitation zone 6 in an essentially vertical direction, e.g. with the hand essentially being oriented near the vertical plane 56, e.g. within a relatively wide space around this plane 56. Furthermore, Fig. 5b shows a further example of a dispenser head 12, corresponding to Fig. 5a, but wherein it is illustrated that the dispenser head may be slanted and where the user’s hand essentially will be oriented in a non-vertical plane 57, e.g. forming an angle in relation to the vertical direction, possibly even a horizontal plane, or in any other suitable orientation.

Even further, Fig. 5c shows a further example of a dispenser head 12, corresponding to Figs. 5a and 5b, but wherein it is illustrated that the dispenser head may be slanted even more, and where the user’s hand essentially will be oriented in a non-vertical plane 57, e.g. forming an angle in relation to the vertical direction, where the non- vertical plane 57 is essentially a horizontal plane.

In Fig. 6 a further example of a dispenser head 12 is shown in an enlarged view, seen in a front view. The same references numbers as used in Fig. 5 denote here the same or similar features, but further the top of the base stand 2 is shown here to illustrate that the dispenser head 12 is disconnected from the base stand 2, e.g. as the dispenser head 12 may be connected to the base stand 2 by hinges, a bayonet coupling, a screw coupling or any other suitable means (not shown here). Thus, it is shown that a supply of sanitizing liquid (not shown here) in the base stand is connected via a tube 54 to the pump and spraying means in the dispenser head. This tube 54 may be connected to the supply of sanitizing liquid by a releasable coupling to facilitate the replacement of an empty sanitizing liquid bag with a filled bag, e.g. by simply removing the dispenser head 12, lifting up the empty bag, couple a new bag to the tube 54, place the new bag in the base stand 2 and put the dispenser head 12 onto the base stand again.

Fig. 6 further illustrates that the inner sides of the dispenser side elements 10 and thus the sanitation zone 6 has a different form. It will be apparent that other forms may be used and that the side elements 10 may be angled e.g. outwards or inwards, if found expedient. A further embodiment of an apparatus 1 according to the invention is shown in Fig. 7, seen in a perspective view.

The support 4 of the apparatus is here configured as the lower part of a cone and the dispenser head 12 is adapted to have the dispenser side elements leaning outwards at the top and with rounded shapes, thereby making the sanitation zone wider at the top, where the user normally enters his or her hand. Thus, an improved user-friendliness is achieved since it will be easier for a user to enter his/her hand by maneuvering in relation to the wide inlet gap and avoid contacting the ends.

The embodiment shown in Fig. 7 is furthermore shown in Fig. 8 in a front view, where the form of the sanitation zone 6 appears clearly and where furthermore, it is shown that the indicators 16 may comprise a light line or another optical marker arrangement, possibly with esthetic and/or informational color effects, around the edge of the sanitation zone. Such indicators 16, indicator lights, indicator light panels or the like may be visible for users in a 360° configuration, e.g. from all directions.

In Figs. 9a and 9b it is shown that the height of the apparatus 1 may be adjusted as the base stand 2 may be configured to be adjusted in relation to the cone shaped support 4, e.g. adjusting the height in steps or as a stepless variation, which may be made in various manners as it will be apparent to a skilled person.

It should be noted that according to embodiments of the invention, the dispenser head 12, which comprises a major part of the electric and electronic components, etc. may be configured to be robust and may comprise e.g. a rubber covering, shock absorbers, etc. to prevent any damages to the dispenser head and its components in case the apparatus is being knocked over, pushed over or otherwise overturned. The same may apply to the support 4, which also may be exposed to damages, e.g. when being overturned or the like and when for example accidentally being hit by people, items and/or materials. It is noted that the apparatus that may be movable and placed at any desirable position, in certain embodiments may be configured to be fixed e.g. to the floor, e.g. by bolting or the like.

Furthermore, it should be noted that the apparatus 1 may be configured to have a mat (not shown) below the support 4, e.g. a rubber mat or the like.

Fig. 10 shows a user 32 sanitizing one hand 30 in an apparatus 1 according to the invention, where the user passes his hand 30 through the sanitation zone 6, while the hand is oriented in an essentially vertical direction. As the hand passes, the spraying means sprays a burst of sanitizing liquid or a mist of sanitizing liquid into the sanitizing zone, e.g. for an application time period T_a from at least two directions, e.g. nozzles placed at each side of the sanitizing zone, e.g. nozzles placed at each of the dispenser side elements 10. The application time period T_a may be for example up to 0.1 sec, more than 0.1. sec, more than 0.2 sec, more than 0.5 sec, more than 0.8 sec or more than 1.0 sec.

Fig. 11 corresponds to Fig. 8, but in Fig. 10 a vertical plane 56 is shown (as also shown in fig. 5) and where a burst of spray 58 is shown from each of two nozzles 50 that are located within the sanitizing zone and which sprays sanitizing liquid on a user’s hand from two directions, e.g. from each side. The sprays may be directed in an angle more or less upwards, e.g. for example within an angle interval of 0° to 90° or within an angle of 5° to 85° in relation to the vertical direction 56, or the angle may for example be in an angle interval around 30°, around 45° or around 60° in relation to the vertical direction 56 or in other suitable angle intervals.

Fig. 12 shows an example of use of apparatuses 1 according to the invention in a location, where a plurality of persons is passing. The apparatuses are positioned with a suitable distance to each other such that a user 32 may pass between the apparatuses, such that the user 32 may sanitize one or both hands while passing. It is noted that when being used in places such as airports and the like, the apparatus may also be used for guiding posts and as anchor points for e.g. guiding strips and similar marking appliances.

Figs. 13a-13c illustrate some of the various manners in which an apparatus for hand sanitation may be used, e.g. as illustrated with a schematically shown dispenser head 12, seen from one side, e.g. showing a dispenser side element 10, and as illustrated with a user’s hand 30. In Fig. 13a, the user is entering the user’s hand 30 from left, holding the hand substantially vertical with the fingers pointing downwards and with the hand essentially parallel with the dispenser side element 10. As indicated with the arrow, the user passes the hand 30 from left to right, such that the hand passes through the sanitation zone.

In Fig. 13b, it is shown that the user’s hand 30 may be entered from above, for example with the fingers pointing downwards, and when the spraying means (not shown in Figs. 13a-13c) has sprayed a burst or mist of sanitizing liquid onto the hand 30, the user may withdraw the hand 30 upwards, e.g. as indicated with the doublearrow.

In Fig. 13c it is furthermore shown that the user may enter his or her hand 30 into the sanitation zone by moving the hand downwards in an angular movement, e.g. with the palm essentially parallel with the dispenser side element 10, until the hand is received in the sanitation zone. When the spraying means (not shown in Figs. 13a- 13c) has sprayed a burst or mist of sanitizing liquid onto the hand 30, the user may withdraw the hand 30 angularly upwards again, e.g. as indicated with the doublearrow.

Other manners of using the apparatus for hand sanitation may apply, e.g. also combinations of the manners illustrated in Fig. 13a-13c. Fig. 14 shows in a schematic manner components of an embodiment of a sanitizing apparatus according to the invention, wherein it is illustrated that a bag 18 for sanitizing liquid is connected to a pump 22 via a filter 60 for removing possible particles, contaminations, etc. Via a tube 54 or the like, the sanitizing liquid is led to a two-way controllable valve 62, which is controlled by a (not shown) control unit. The two outlets from the two-way controllable valve 62 are connected to distribution tubes 64 or the like, which leads sanitation liquid to the nozzles 50 within the sanitation zone 6, possibly via further filters 60.

Fig. 15 illustrates an embodiment of a sanitizing apparatus according to an embodiment of the invention seem from above, e.g. showing the outline of a dispenser head 12 seen from above and wherein furthermore, the two dispenser side elements 10 are indicated, seen from above. Inside each of these is positioned a sensor device 40, which in this embodiment is a hand detection system, based on 3D positioning in an electric field. The E-field sensor devices are enclosed in the dispenser side elements 10 and have thus each an encapsulation 11, protecting the sensor devices 14. The sensor devices 14 according to this embodiment generates electric fields, E_F_1 and E_F_2, which are generated by electric charges and propagate 3-dimensinonally within the sanitation zone 6. Furthermore, as the two sensor devices 40 are facing each other, placed on each side of the sanitation zone 6, the electric fields, E_F_1 and E_F_2, may be overlapping as indicated by E_F_l+2.

When the user’s hand is entered into the sanitation zone 6, the position of the hand is detected 3 -dimensionally as well as the movement of the hand into the sanitation zone. Thus, the apparatus and e.g. the spraying means 8 may, based on signals from the sensor devices 14, be alerted of the incoming hand as well as the characteristic of the movement, e.g. the speed with which the hand is entered and may therefore apply e.g. bursts of sanitation liquid from the respective nozzles when the hand is in an appropriate position. Fig. 16a shows in a schematic manner a sensor device 40 using an electric field technology for detecting a user’s hand. The sensor device 40 according to this embodiment comprises a transmitter 70 on one side of an isolation 72, e.g. dielectric material, layer, plate or the like, and on the other side of the isolation 72 a number of receivers 74a, 74b are positioned. Below the transmitter 70 a layer defining an electric ground 76 is arranged.

When a voltage is applied to the electrodes, an electric field (E-field) is generated as illustrated in Fig. 16a with field lines 78 (dash lines) and correspondingly an equipotential line 80 (dotted line), of which only one is shown for clarity reasons.

When a user’s hand 30 is entering the electric field, e.g. when the user’s hand is getting near or entering a sanitation zone, the electric field becomes distorted as illustrated in Fig. 16b. The field lines 78 are drawn to the user’s hand 30 due to the conductivity of the human body and due to the human body representing a shunt to ground. Thus, the influence of the user’s hand 30 causes a compression of the equipotential lines, as represented with the single equipotential line 80 in Fig. 16b, meaning that the signal level of the receiver electrode 74a shifts to a lower potential, which may be measured and utilized, e.g. by a control unit (not shown in Fig. 16b) to calculate the e.g. position of the hand 30, to track the movements etc.

Thus, it will be understood that by such sensor devices 40, applied on or within the dispenser side elements 10, the apparatus and e.g. the spraying means 8 may, based on signals from these sensor devices 14, be alerted of the incoming hand 30 as well as the characteristic of the movement, e.g. the speed with which the hand is entered and may therefore apply e.g. bursts of sanitation liquid from the respective nozzles when the hand is in an appropriate position.

Other embodiments of sensor devices may be used, which may be operating using other technologies. Fig. 17 shows various examples of positioning one or more sensor devices in an apparatus 1 for hand sanitizing, where the apparatus is seen in a front view, e.g. corresponding to Figs. 8 and 11. The sensor devices may be sensor devices using an electric field technology for detecting a user’s hand as explained above in connection with Figs. 15 and 16a-16b. Such a sensor device 14a may be positioned at one side of the sanitation zone 6, for example placed in a dispenser side element 10, where it may generate an electric field E_F_1. Instead or additionally, a sensor device 14b may be positioned at the other side of the sanitation zone 6, for example placed in another dispenser side element 10, where it may generate an electric field E_F_2 as illustrated in Fig. 17. Even further, it is illustrated in Fig. 17 that a sensor device 14c may be positioned at the bottom side of the sanitation zone 6, for example placed in the bottom of the dispenser head, where it may generate an electric field E_F_3. As it will be apparent, based on the functioning of the sensor devices using an electric field technology for detecting a user’s hand, one or more of these sensor devices 14a, 14b and 14 c may be used for detecting a user’s hand, e.g. one sensor device alone, e.g. , two in combination, e.g. 14a and 14b, 14a and 14c or 14 b and 14c, and possibly even three in combination.

It should be noted that other positions for the one or more of these sensor devices 14a, 14b and 14 c than shown are possible.

In the above description, various embodiments of the invention have been described with reference to the drawings, but it is apparent for a person skilled within the art that the invention can be carried out in an infinite number of ways, using e.g. the examples disclosed in the description in various combinations, and within a wide range of variations within the scope of the appended claims. List of reference numbers

1 Apparatus for hand sanitizing

2 Base stand

4 Support

6 Sanitizing zone

8 Spraying means

10 Dispenser side element

11 Encapsulation

12 Dispenser head

14 Sensor device

14a-c Sensor devices

16 Indicator

18 Bag for sanitizing liquid

20 Supply of sanitizing liquid

22 Pump

24 Control unit

26 Power supply

30 User’s hand

32 User

40 Table

42 Wall

50 Nozzle

52 Indicator light

54 Tube for sanitizing liquid

56 Vertical plane

57 Non- vertical plane

58 Spray from nozzle

60 Filter

62 Two-way controllable valve

64 Distribution tube

70 Transmitter 72 Isolation, e.g. dielectric

74a, b Receiver

76 Ground

78 Field lines 80 Equipotential line

Claims

32 Patent Claims

1. An apparatus (1) for hand sanitizing, said apparatus comprising a sanitizing zone (6) that is configured for receiving a user’s hand (30), wherein said apparatus at said sanitizing zone (6) comprises spraying means (8) for spraying a sanitizing liquid onto the user’s hand (30) from at least two different directions, when the user’s hand is at least partly received at the sanitizing zone (6), said spraying means (8) for spraying sanitizing liquid is configured for producing a spray of said sanitizing liquid from said a least two different directions, opposed to each other, and wherein said apparatus (1) comprises a control unit (24) for controlling said spraying of said sanitizing liquid, based on a 3-dimensional detection of the user’s hand (30) in relation to said sanitizing zone (6).

2. The apparatus according to claim 1, wherein said spraying means (8) comprises a sensor device (14) for detecting presence of the user (32), e.g. the user’s hand (30), said sensor device (14) providing input to said control unit (24).

3. The apparatus according to claim 2, wherein said sensor device (14) comprises a sensor device positioned at one or each side of said sanitizing zone (6), said sensor device being configured for 3 -dimensional detection of the user’s hand (30) in relation to said sanitizing zone (6).

4. The apparatus according to claim 1, 2 or 3, wherein said sanitizing zone (6) comprises two dispenser side elements (10), which are arranged opposite to each other to form at least part of said sanitizing zone (6) that is configured for receiving a user’s hand (30).

5. The apparatus according to claim 4, wherein said two dispenser side elements (10) comprise said spraying means (8) arranged for spraying sanitizing liquid onto the user’s hand, when it is present in or passing the sanitizing zone (6). 33

6. The apparatus according to any one of claims 1-5, wherein said apparatus comprises indicators (16) arranged at or near said sanitizing zone (6), which indicators are controlled to be activated constantly, e.g. by constantly flashing, or are controlled to be activated upon presence of a potential user (32).

7. The apparatus according to any one of claims 1-6, wherein said apparatus is arranged with a dispenser head (12) at the top, which comprises said spraying means and one or more of

- said control unit (24)

- a power supply (26),

- a pump (22),

- one or more indicators (16),

- a controllable valve (62), and/or

- a sensor device (14).

8. The apparatus according to any one of claims 1-7, wherein said apparatus comprises a base stand (2), which has a height adapted for a floor stand, for a table stand or for being supported otherwise, e.g. on a wall or a piece of furniture, etc.

9. The apparatus according to claim 8, wherein said base stand (2) is configured for containing a supply (20) of said sanitizing liquid, for example one or more bags (18), containers or the like.

10. The apparatus according to any one of claims 1-9, wherein said spraying means (8) comprises one or more spraying nozzles (50) arranged at each side of said sanitizing zone (6).

11. The apparatus according to any one of claims 1-10, wherein said spray of said sanitizing liquid comprises a mist of said sanitizing liquid.

12. The apparatus according to any one of claims 1-11, wherein said sanitizing zone (6) is configured for receiving a user’s hand (30) that is oriented in an essentially vertical direction.

13. The apparatus according to any one of claims 1-11, wherein said sanitizing zone (6) is configured for receiving a user’s hand (30) that is oriented in an angle in relation to an essentially vertical direction.

14. Use of an apparatus according to any one of claims 1-13, wherein said apparatus (1) is positioned at or near a walking area, at or near a passing area or the like, and where optionally one further of said apparatus (1) may be positioned with a distance to said apparatus such that a user (32) may pass between said apparatus and said further apparatus, such that the user may sanitize one or both hands while passing.

15. A method of controlling an apparatus (1) for hand sanitizing, said apparatus comprising a sanitizing zone (6) that is configured for receiving a user’s hand (30), said method comprising

- detecting the user’s hand (30) when entering the sanitizing zone (6),

- determining the position 3 -dimensionally within the sanitizing zone (6), and

- based on the determined position within the sanitizing zone (6) determining an initiation time for activation of spraying means (8) for spraying sanitizing liquid onto the user’s hand (30).

16. The method according to claim 15, wherein said activation of spraying means (8) comprises activation of a pump (22) and/or activation of a controllable valve (62).

17. The method according to claim 15 or 16, wherein the step of determining the position 3 -dimensionally within the sanitizing zone (6) comprises applying an electric field detecting using an electric field detecting arrangement positioned at or in at least one dispenser side element (10), which defines one side of the sanitizing zone (6), and/or at or in a bottom part of said sanitation zone (6), e.g. in a bottom part of the dispenser head (12).

18. The method according to claim 17, wherein the step of determining the position 3 -dimensionally within the sanitizing zone (6) comprises applying an electric field detecting using an electric field detecting arrangement positioned at or in two opposing dispenser side elements (10), which defines the sanitizing zone (6).

19. The method according to any one of claims 15-18, wherein said activation of spraying means (8) for spraying sanitizing liquid comprises a burst or a series of bursts of sanitizing liquid delivered via one or more nozzles (50).

20. The method according to any one of claims 15-19, wherein said apparatus is configured according to any one of claims 1-13.