WO2022229640A1 - Améliorations apportées à un appareil de pulvérisation - Google Patents

Améliorations apportées à un appareil de pulvérisation Download PDF

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Publication number
WO2022229640A1
WO2022229640A1 PCT/GB2022/051076 GB2022051076W WO2022229640A1 WO 2022229640 A1 WO2022229640 A1 WO 2022229640A1 GB 2022051076 W GB2022051076 W GB 2022051076W WO 2022229640 A1 WO2022229640 A1 WO 2022229640A1
Authority
WO
WIPO (PCT)
Prior art keywords
fluid material
reservoir
dispensing
nozzle
dispensing aperture
Prior art date
Application number
PCT/GB2022/051076
Other languages
English (en)
Inventor
Michael Waldron
Geert ENSING
Rients Bakker
Original Assignee
7Rdd Limited
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 7Rdd Limited filed Critical 7Rdd Limited
Publication of WO2022229640A1 publication Critical patent/WO2022229640A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
    • B05B5/025—Discharge apparatus, e.g. electrostatic spray guns
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/50—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/60—Arrangements for mounting, supporting or holding spraying apparatus
    • B05B15/65—Mounting arrangements for fluid connection of the spraying apparatus or its outlets to flow conduits
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
    • B05B5/025—Discharge apparatus, e.g. electrostatic spray guns
    • B05B5/035—Discharge apparatus, e.g. electrostatic spray guns characterised by gasless spraying, e.g. electrostatically assisted airless spraying
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
    • B05B5/16—Arrangements for supplying liquids or other fluent material
    • B05B5/1691—Apparatus to be carried on or by a person or with a container fixed to the discharge device
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
    • B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
    • B05B9/08—Apparatus to be carried on or by a person, e.g. of knapsack type
    • B05B9/085—Apparatus to be carried on or by a person, e.g. of knapsack type with a liquid pump
    • B05B9/0855—Apparatus to be carried on or by a person, e.g. of knapsack type with a liquid pump the pump being motor-driven
    • B05B9/0861—Apparatus to be carried on or by a person, e.g. of knapsack type with a liquid pump the pump being motor-driven the motor being electric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
    • B05B5/025—Discharge apparatus, e.g. electrostatic spray guns
    • B05B5/043—Discharge apparatus, e.g. electrostatic spray guns using induction-charging

Definitions

  • the invention to which this application relates is apparatus which can be used to apply a spray of a fluid material, typically of a liquid, with the spray being formed of a plurality of particles or droplets of the fluid material which are emitted from a dispensing aperture or apertures of a nozzle under pressure so as to disperse the particles into the surrounding environment in a spray pattern.
  • the particular spray pattern can, in certain instances, be adjustable by the user.
  • the apparatus of this type comprises a reservoir for the fluid material, a pump which is located downstream of an exit aperture from the reservoir and the pump is operated by a powered motor to pump the fluid material from the reservoir and along a supply channel to the dispensing aperture or apertures under pressure.
  • the operation, such as switching on and off, of the apparatus is controlled by the user operation of a switch or trigger mechanism and power can be supplied to operate the pump from a mains power connection or a battery pack located on the housing of the apparatus.
  • the fluid material held in the reservoir may be selected to suit a particular purpose such as, for example, for certain uses, the fluid material may be a disinfectant or anti-viral liquid, but it should be appreciated that the fluid material may be of other forms and with which the apparatus can be used to advantage.
  • a problem which is created by applying the electrostatic charge is that the apparatus is prone to building up an electric charge and which is discharged to the operator of the apparatus as an electric shock. This is found to be particularly prevalent when operator contact is made to adjust the nozzle setting and/ or after the apparatus has been used and when a quantity of the charged fluid material is still present in the supply channel. This therefore means that if the operator contacts the apparatus and in particular the fluid supply channel, such as, for example, to refill the reservoir with the fluid material, there is a risk that they will suffer an electric shock due to the discharge of the electrostatic fluid material retained in the supply channel.
  • a further problem with this known apparatus is the requirement to adjust the relative position of a number of nozzles in order to change the spray pattern as typically, at the dispensing aperture the apparatus includes a nozzle assembly which has a number of spaced apart nozzle types and a particular nozzle type can be selected by adjustment of position of the nozzle assembly with respect to the remainder of the apparatus so that one of the nozzle types is placed in connection with the fluid material discharge aperture to allow the passage of the fluid material through the selected nozzle and thereby provide a selected spray pattern.
  • the nozzle assembly is typically mounted so as to be adjustable in position whilst retained in connection with the apparatus housing and this can lead to direct contact between the operator and the nozzle types which are typically formed from a metal or metal alloy material and which can cause electrical discharge as an electric shock to the operator.
  • An aim of the present invention is therefore to provide apparatus which allows the discharge of a spray pattern of fluid material particles which are provided with an electrostatic charge and to provide the apparatus in a form which reduces the risk of electric shock from the charged fluid material/ and or apparatus to the operator whilst still maintaining the benefit of applying the electrostatic charge to the discharged fluid material.
  • a further aim is to provide a method of use of said apparatus which allows a reduction in the risk of electric shock to the operator.
  • a further aim of the present invention is to provide the apparatus in a form which allows increased efficiency of application of the fluid material so as to maximise the potential benefit of the fluid material which is dispensed.
  • apparatus for the dispensing of fluid material particles under pressure and with an electrostatic charge said apparatus including a reservoir of the fluid material, a supply channel from the reservoir to a dispensing aperture, a means for applying pressure to the fluid material to dispense the fluid material particles from the dispensing aperture and into the surrounding environment, a means for imparting an electrostatic charge to the fluid material particles and wherein control means are provided so as to allow a purge of said fluid material to be performed so as to at least reduce the quantity of electrostatically charged fluid material retained between the reservoir and the dispensing aperture.
  • the purge is performed after the operator has moved the apparatus from a dispensing or on condition.
  • the change in condition is achieved by the operator using control means, typically a switch assembly, on the apparatus.
  • the electrostatic charge which is added to the particles is a positive charge such that when the particles have been dispensed from the apparatus as a spray, the charged particles are increasingly attracted to apply to and be retained on surfaces within range of the dispensed spray pattern in the surrounding environment and thereby improve the efficiency and usage of the fluid material particles to provide the required effect such as, for example, a disinfecting effect on said surfaces.
  • the apparatus includes a reservoir of fluid material which is directly located on and carried by the housing of the apparatus which is also gripped by the operator when using the apparatus and the reservoir is connected to the dispensing aperture by a supply channel.
  • the reservoir is carried separately by the operator or may be located at a fixed or moveable location so as to allow typically larger quantities of the fluid material to be dispensed and the reservoir is connected to the said housing of the apparatus via the supply channel which extends from the reservoir to the housing.
  • the apparatus includes a dispensing assembly at the dispensing aperture, said assembly including location means to allow the selective engagement and release of a nozzle.
  • the nozzle is formed of a specific configuration so as to allow a particular spray pattern of fluid material particles which leaves the dispensing aperture to then pass through the nozzle and be dispensed therefrom in a particular spray pattern.
  • a range of nozzles are available to be selectively placed on and removed from the apparatus. For example, one nozzle, when engaged, may allow a relatively narrow spray pattern of fluid material particles while another nozzle, when engaged, causes dispensation of a larger spray pattern and therefore it will be appreciated that the operator can select to fit the appropriate nozzle for their particular purpose for each particular use of the apparatus.
  • each of the nozzles includes a metal or metal alloy channel through which the fluid material passes and said channel is located in a casing which includes one or more engagement portions which are engageable with location means of the dispensing assembly on the apparatus housing.
  • the nozzle engagement portions and/ or dispensing assembly include at least one part which is biased towards a locking position to retain the nozzle on the housing and said at least one part can be moved under manual force to a release location to allow the nozzle to be released from the housing.
  • the biasing means force the said at least one part to the locking position to thereby retain the nozzle in position.
  • the casing is formed of a plastics material housing and in order to release and engage the nozzle, the operator only has to make contact with the plastics material and thereby reducing the risk of electric shock to the operator.
  • the need to have an adjustable multi-nozzle assembly is overcome and removed and hence the risk of leakage and/ or electric shock to the operator when manipulating the adjustable nozzle of the conventional type, is avoided whilst, at the same time, ensuring that the range of possible options for spray patterns can be at least maintained if not increased in comparison to the conventional apparatus. This also allows the improved seal of the nozzle with respect to the housing.
  • the housing includes a handle portion which includes, in location therewith, control means in the form of, for example, a trigger portion which when operated by the operator causes electrical connection and operation of the motor and pump in order to move the fluid material to be dispensed from the reservoir towards the dispensing aperture.
  • control means in the form of, for example, a trigger portion which when operated by the operator causes electrical connection and operation of the motor and pump in order to move the fluid material to be dispensed from the reservoir towards the dispensing aperture.
  • the electrostatic charge is applied to the fluid.
  • the fluid passes through a metal or metal alloy passage such as a tube leading from the pump to the dispensing aperture and the charge is applied to the metal or metal alloy tube and, in turn, to the fluid passing through the tube.
  • the said tube is part of, or is in connection with, the metal or metal alloy channel of the nozzle assembly.
  • the control means for generating the electrostatic charge is connected to the metal or metal alloy passage and the control means is located in the housing and the charging assembly applies the electrostatic charge to the fluid material prior to being dispensed.
  • the purging of any fluid material which is held in the apparatus intermediate the reservoir and the dispensing aperture commences once, and preferably immediately and automatically after, the user has operated the trigger or released the same to stop operation of the motor and pump.
  • the purged fluid material is discharged through the dispensing aperture and nozzle but without the fluid material being dispensed at as great a pressure as when the apparatus is being operated for normal usage, such that once the purge has been completed, the supply channel is substantially filled with air.
  • the apparatus includes one or more apertures which are connected to the external environment and which therefore allow air to enter the channel and prevent the build-up of a vacuum in the supply channel and/or reservoir which, if it did occur, would prevent the purging of the fluid.
  • the pressure, which is created is selected such that it is sufficient to allow the purging of the dispensing fluid into the reservoir but, when the apparatus is operated to dispense fluid, does not act to provide any significant resistance to the dispensing of the fluid particles in the spray pattern.
  • the purging operation will occur automatically upon the operator moving the pump and motor to an off position.
  • the apparatus includes a three-way valve to prevent any liquid flow from the reservoir entering the channel, and pump during the purging operation.
  • a safety interlock is provided as part of the apparatus which prevents the operation of the motor, pump and/or electrostatic charging means when the reservoir is removed from the channel and being replaced in location on the housing.
  • the safety interlock feature is located between the reservoir and the housing if the reservoir is of a type which is mounted on the housing and is a mechanical and/ or electrical feature connected to the control system within the housing of the apparatus to retain the apparatus in a switched off position when the safety interlock is disengaged.
  • the reservoir includes a negative pressure release valve to allow air to flow into the tank whilst the fluid material is being drawn-out from the reservoir through the pump.
  • apparatus for the dispensing of fluid material particles under pressure and with an electrostatic charge said apparatus including a reservoir of the fluid material, a supply channel from the reservoir to a dispensing aperture, a means for applying pressure to the fluid material to dispense the fluid material particles from the dispensing aperture and into the surrounding environment, a means for imparting an electrostatic charge to the fluid material particles and wherein the dispensing apertures is connected via a dispensing assembly to at least one nozzle formed as a metal or metal alloy channel located within a plastics material casing.
  • a method for the dispensing of fluid material particles under pressure and with an electrostatic charge from a dispensing apparatus comprising the steps of providing a reservoir of the fluid material, operating the apparatus control means to apply pressure to the fluid material and a charge to the fluid material to dispense the charged fluid material particles from a dispensing aperture of the apparatus and into the surrounding environment, and wherein when the said control means are moved to a condition to stop the dispensing of the fluid material purge of said fluid material is automatically performed so as to at least reduce the quantity of electrostatically charged fluid material retained between the reservoir and the dispensing aperture.
  • Figures la-c illustrate views of apparatus in accordance with one embodiment of the invention
  • Figure 2 illustrates the components of the apparatus of the preceding Figures in separation
  • Figures 3a-c illustrate the dispensing aperture portion and nozzle of the apparatus.
  • FIG. 1 a-c and 2 there is illustrated one embodiment of apparatus 2 in accordance with the invention.
  • the apparatus includes a housing 4 as shown in Figure la but which is removed in Figure 2.
  • the housing 4, in this embodiment, is provided to mechanically and electrically engage with a battery pack 6 which can provide power at a required rated voltage to allow operation of the apparatus.
  • a battery pack 6 which can provide power at a required rated voltage to allow operation of the apparatus.
  • the apparatus will equally be operable using a mains power supply thereto.
  • a reservoir 8 for the fluid material which is to be dispensed.
  • the reservoir is not shown in Figure 2 for clarity of reference.
  • the apparatus includes a supply or dispensing channel 10, typically a tube, which passes from the reservoir 8 and into the housing.
  • the channel 10 may be of a longer length and pass into a reservoir which is separate to the housing and which, for example, may be provided in the form of a backpack which has a greater capacity for the fluid material which is to be dispensed.
  • the housing also includes a handle assembly 12 by which the apparatus can be gripped and used and adjacent thereto is a control means in the form of a trigger 14 which allows the selective operation of the on/off switch 16 located in the housing.
  • a motor and pump 18,20 are also provided in the housing in order, when operated by the provision of power thereto via the on/ off switch, to draw the fluid material from the reservoir 8 and through the channel 10 to the pump 20 and then be directed, under pressure to the dispensing assembly 22.
  • the dispensing assembly will be discussed in more detail but includes therein a dispensing aperture 24 through which the fluid material exits to a nozzle 26 and exits therefrom in a spray pattern 28 defined by the particular configuration of the nozzle located on the apparatus housing at that time.
  • electrostatic charging control means 30 are provided in the housing and connected to control the operation of an electrostatic charging means 32 positioned so that the fluid material liquid when passing along a metal or metal alloy passage tube 33 as part of the dispensing channel 10 is charged after the location of the pump and prior to reaching the dispensing aperture 24.
  • the apparatus in operation, is moved to an on position by the user operating the trigger 14 and the fluid material is drawn through the channel 10, is electrically charged and then the particles are dispensed from the nozzle 26.
  • the control system for the apparatus will move to a purging mode and cause the apparatus motor and pump to continue to operate for a predetermined period of time thereafter in order to allow any remaining fluid material in the channel 10 intermediate the reservoir 8 and the dispensing aperture 24 to be discharged through the dispensing aperture through the nozzle 26 and/ or to return into the reservoir.
  • one or more air passages to the external environment are provided so as to allow air to enter the passage as the continued dispensing during the purge operation occurs.
  • means are provided to allow a lower pressure to be created in the reservoir 8 which draws the fluid material back into the reservoir from the channel 10 when the apparatus is moved to the off position.
  • the level of the lower pressure will be sufficient to encourage the fluid back into the reservoir but will not be sufficient so as to provide any significant resistance to the dispensing of the fluid material from the apparatus during the normal operation of the same.
  • the purging operation will take one or a few seconds and the operation of the pump and motor beyond the desired end use of the apparatus, will be predetermined and will then stop to move the apparatus automatically to a fully off condition.
  • a nozzle 26 in accordance with one embodiment of the invention is shown in greater detail in Figures 3a-c and typically includes a plastic material casing 34 which locates therein, a metal or metal alloy channel 36 which is of a required configuration so as to determine the type of spray pattern of the fluid material particles which are dispensed.
  • the apparatus will typically be provided with a range of nozzles of different types and these can be selectively used with the apparatus so that at any one time of operation, one of the range of nozzles will be located on the apparatus.
  • the nozzle casing 34 can be provided in different embodiments with the embodiments shown in Figures 3a-c different to that shown in Figures la-c and 2.
  • location means 38, 40 are provided on the dispensing assembly 22 and nozzle 26 respectively and the location means 38 are provided with engagement portions 42, 44 which can be selectively moved between locking and released positions to allow the selected nozzle to be locked in position and released from the dispensing assembly respectively.
  • the outer housing 46 of the dispensing assembly is removed in Figures 3b and c to illustrate the operation of the location means.
  • the location means 38 will be biased to a locking position in shown in Figure 3b in which the same latch into the location means 40 of the nozzle casing 34 to thereby secure and seal the nozzle in position at the dispensing aperture 24 of the dispensing assembly.
  • the operator slides the engagement portions 42,44 as indicated by arrow 48 to release the location means and allow the nozzle 26 to be released from the housing as indicated by arrow 50 and replaced by another nozzle 26 to provide a different spray pattern or to allow the nozzle to be cleaned.
  • the metal or metal alloy dispenser 36 is located in a plastic housing and is not required to be contacted in order to use or release the same then the risk of electric shock by the operator contacting the metal portion is at least reduced or avoided completely.
  • apparatus which allows for the safer use of electrostatic fluid dispensing apparatus and, also, to allow the ease of adaptability of the same in terms of the spray pattern of the fluid material, which is omitted, to be improved whilst at the same time, reducing the risk of electric shock to the user.

Landscapes

  • Electrostatic Spraying Apparatus (AREA)

Abstract

L'invention concerne un appareil (2) et un procédé de distribution de particules de matériau fluide sous pression et à charge électrostatique. L'appareil (2) et le procédé selon l'invention permettent, lorsque ledit appareil est sorti d'un mode de distribution, d'effectuer une purge dudit matériau fluide, de sorte à réduire au moins la quantité de matériau fluide chargé électrostatiquement retenu à l'intérieur de l'appareil. Un ensemble de distribution (22) peut également être pourvu d'une buse (26) pouvant être fixée de façon sélective sur ledit ensemble. La buse (26) et la purge de l'appareil permettent de réduire le risque de décharge par électrisation pour les opérateurs de ce type d'appareil.
PCT/GB2022/051076 2021-04-29 2022-04-28 Améliorations apportées à un appareil de pulvérisation WO2022229640A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB2106111.4 2021-04-29
GBGB2106111.4A GB202106111D0 (en) 2021-04-29 2021-04-29 Improvements to spray apparatus

Publications (1)

Publication Number Publication Date
WO2022229640A1 true WO2022229640A1 (fr) 2022-11-03

Family

ID=76301157

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2022/051076 WO2022229640A1 (fr) 2021-04-29 2022-04-28 Améliorations apportées à un appareil de pulvérisation

Country Status (2)

Country Link
GB (2) GB202106111D0 (fr)
WO (1) WO2022229640A1 (fr)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0086029A1 (fr) * 1982-02-05 1983-08-17 Imperial Chemical Industries Plc Réservoir à liquide
US5601478A (en) * 1994-03-01 1997-02-11 Job Industries Ltd. Fluidized stream accelerator and pressuiser apparatus
KR20110116131A (ko) * 2008-12-17 2011-10-25 텐난트 컴파니 액체를 통하여 전하를 인가하여 살균 특성을 증가시키는 방법 및 장치
JP2013094719A (ja) * 2011-10-31 2013-05-20 Daikin Industries Ltd 静電噴霧装置
US20130230661A1 (en) * 2012-03-05 2013-09-05 Honda Motor Co., Ltd. Intermediate storage device of electrostatic coating system , method for cleaning the same, and method for coating
DE102018109456A1 (de) * 2017-04-21 2018-10-25 J. Wagner Gmbh Verfahren zur Steuerung eines elektrostatischen Zerstäubers für Flüssigkeiten
DE102019135150A1 (de) * 2018-12-21 2020-06-25 J. Wagner Gmbh Düsenfeld-Silikon
US20200360941A1 (en) * 2014-09-04 2020-11-19 Victory Innovations Company Electrostatic fluid delivery system

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7152817B2 (en) * 1999-08-18 2006-12-26 The Procter & Gamble Company Electrostatic spray device
WO2003031075A1 (fr) * 1999-09-16 2003-04-17 Nordson Corporation Pistolet pulverisateur dote d'un bec pulverisateur a angle en ligne
CN107106980B (zh) * 2014-10-28 2020-07-17 沃尔沃卡车集团 静电流体喷射系统

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0086029A1 (fr) * 1982-02-05 1983-08-17 Imperial Chemical Industries Plc Réservoir à liquide
US5601478A (en) * 1994-03-01 1997-02-11 Job Industries Ltd. Fluidized stream accelerator and pressuiser apparatus
KR20110116131A (ko) * 2008-12-17 2011-10-25 텐난트 컴파니 액체를 통하여 전하를 인가하여 살균 특성을 증가시키는 방법 및 장치
JP2013094719A (ja) * 2011-10-31 2013-05-20 Daikin Industries Ltd 静電噴霧装置
US20130230661A1 (en) * 2012-03-05 2013-09-05 Honda Motor Co., Ltd. Intermediate storage device of electrostatic coating system , method for cleaning the same, and method for coating
US20200360941A1 (en) * 2014-09-04 2020-11-19 Victory Innovations Company Electrostatic fluid delivery system
DE102018109456A1 (de) * 2017-04-21 2018-10-25 J. Wagner Gmbh Verfahren zur Steuerung eines elektrostatischen Zerstäubers für Flüssigkeiten
DE102019135150A1 (de) * 2018-12-21 2020-06-25 J. Wagner Gmbh Düsenfeld-Silikon

Also Published As

Publication number Publication date
GB2607191A (en) 2022-11-30
GB202206169D0 (en) 2022-06-15
GB202106111D0 (en) 2021-06-16

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