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EP3978141B1 - Pulvérisateur à pression à jet porté - Google Patents

Pulvérisateur à pression à jet porté Download PDF

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Publication number
EP3978141B1
EP3978141B1 EP21198194.9A EP21198194A EP3978141B1 EP 3978141 B1 EP3978141 B1 EP 3978141B1 EP 21198194 A EP21198194 A EP 21198194A EP 3978141 B1 EP3978141 B1 EP 3978141B1
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EP
European Patent Office
Prior art keywords
pressure
bar
spray device
container
pump
Prior art date
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Active
Application number
EP21198194.9A
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German (de)
English (en)
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EP3978141A1 (fr
Inventor
Markus Kress
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Individual
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Individual
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Publication date
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Publication of EP3978141A1 publication Critical patent/EP3978141A1/fr
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Classifications

    • 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
    • B05B9/0805—Apparatus to be carried on or by a person, e.g. of knapsack type comprising a pressurised or compressible container for liquid or other fluent material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
    • B05B12/004—Arrangements for controlling delivery; Arrangements for controlling the spray area comprising sensors for monitoring the delivery, e.g. by displaying the sensed value or generating an alarm
    • B05B12/006—Pressure or flow rate sensors
    • B05B12/008—Pressure or flow rate sensors integrated in or attached to a discharge apparatus, e.g. a spray gun
    • 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
    • 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
    • B05B9/0888—Carrying means for knapsack sprayers

Definitions

  • the invention relates to a pressure spray device with a pressure container, an electric pump, and an electric storage device for supplying energy to the electric pump, wherein the electric pump builds up a container pressure in the interior of the container.
  • a pressure sprayer in particular a hand-held fire extinguisher or crop protection sprayer, has become known, which comprises a spray container that can be filled with pressurised gas and a hose connected to the spray container with a one-sided valve for dispensing the spray.
  • the DE-U 84 20 572 shows a portable pressure sprayer which is characterized in that the spray medium pressure container is provided with an upper filling opening which can be closed by an insertable hand pump, as well as openings for a pressure indicator and for a pressure relief valve and a connection opening for a spray hose.
  • the disadvantage of all the pressure sprayers mentioned above was that the pressure in the pressure sprayer which was necessary to dispense the spray medium and which is preferably in the range of 1.5 to 1.6 bar was built up in particular with the help of a hand pump. During spraying, the pressure decreases when the spray medium is dispensed. Therefore, in the prior art, after a certain period of time during which the spray medium was dispensed, the pressure in the pressure container would have to be increased again by pumping it up again by hand.
  • a pressure sprayer has become known in which an electric motor drives the pump.
  • the pump is located in the upper part of the pressure spray container, and rechargeable battery cells are located in the lower part of the housing, which extends into the liquid tank. Since the battery cells located there cannot be removed during operation, the work process must be interrupted when charging or replacing the batteries, either until the empty battery cells are recharged or replaced.
  • batteries or accumulators for example NiMh accumulators
  • EP 1949972 A1 Similar principles are also shown by the EP 1949972 A1 and the EP 2588247 B1 .
  • the system is designed so that the battery cells can be removed by dismantling part of the pressure vessel.
  • EP 2588247 B1 solves this problem with a detachable battery compartment that can be removed and protrudes into the pressure vessel housing.
  • a pressure sprayer for applying a spray agent with a pressure container has become known, wherein the pressure container includes a compressor connection and can be connected to a compressor. With the help of the compressor, gas is fed into the pressure container and The pressure for applying the spray agent is built up. Using an external device, the pressure in the pressure vessel can be adjusted and, if necessary, kept constant.
  • the US 5 931 207 A discloses a handheld compressor used for spraying liquids from a tank or for inflating inflatable objects.
  • the compressor is powered by a storage device, in particular a battery, attached to the housing of the compressor.
  • a storage device in particular a battery
  • Not shown in the US 5 931 207 A is how the storage device can be replaced quickly and easily.
  • the US 5 931 207 A how the pressure must be regulated to achieve a constant volume flow.
  • the accumulator is arranged outside the interior of the container laterally on the outer wall of the container or laterally on the carrying handle of an insert for the pressure sprayer, wherein the insert comprises the electric pump.
  • herbicide spraying Another application is herbicide spraying. With herbicides used to eliminate weeds, wind drift of the droplets is undesirable, as they can then contaminate crops.
  • a suitable nozzle the nozzle manufacturer specifies suitable combinations of nozzle diameter and system pressure
  • low-drift spraying is possible at a pressure of approximately 1.5 bar, particularly in the range of 1.37 bar to 1.6 bar.
  • the pressure which is preferably kept constant within a tolerance within a specified pressure range, ensures a constant volume flow.
  • a pressure sprayer for applying foam with a hand pump describes the EP 2 308 603 A1 , the disclosure content of which is incorporated in the present application in its entirety.
  • EP 2 308 603 A1 the parameters that are crucial for good foaming are described.
  • the pump is preferably designed such that a sufficient volume flow is provided for various spray applications and requirements in a pressure range between 1 and 3 bar, particularly preferably between 1.5 and 2.5 bar.
  • the pressure is set on a control panel, preferably an indicator device, in particular a display, in the range 1.5 to 2.5 bar.
  • the pump is switched back on in the event of deviations in the range 2 to 20%, preferably 10%, of the target pressure, e.g. if the pressure falls below an internal limit value. With such a tolerance, there is a sufficient period of time between switching the pump on and off, so that wear is minimized.
  • a pendulum piston pump is used as the electric pump.
  • the piston is sealed to the cylinder using a rubber diaphragm.
  • the pendulum piston pump thus combines the advantages of a diaphragm pump with those of a piston pump.
  • the pendulum piston pump runs more smoothly than a piston pump and does not require lubrication. It is particularly preferred if the air sucked from the housing is compressed by the pump's piston and fed into a pressure hose via an outlet valve. The pressure hose, in turn, opens into the pressure sprayer's container.
  • the pressure in the pressure sprayer By introducing air into the pressure sprayer's container with the help of the piston pump via the pressure hose, the gas cushion in the container and thus the pressure in the pressure sprayer is adjusted. Since the pressure sensor measures the pressure in the container, the pressure in the pressure sprayer can be adjusted, preferably in the range of 1 to 3 bar, using the electric pump and the control or regulating unit.
  • the pressure sensor is preferably located on a circuit board on the rear of the control panel. The pressure sensor located there is connected to the container via a hose. In this way, the pressure in the container can then be determined.
  • the pressure hose is preferably made of silicone, polyurethane, or PVC.
  • the hose itself is preferably connected to a pressure nipple on the housing so that compressed air can be fed into the tank or pressure vessel via this nipple.
  • an inlet valve is preferably provided between the pump housing and the hose, which only opens when compressed air flows towards the nipple and thus into the container. In this way, it is possible to maintain the internal container pressure even when the pump is switched off.
  • the pressure sensor is preferably connected to the pressure nipple via the pressure hose or another hose.
  • the pump can be operated in reverse mode.
  • High reservoir pressures and an unfavorable piston position can cause the motor to jam upon starting.
  • the pump is equipped with a reverse mode, this ensures that the motor runs briefly in reverse and immediately restarts.
  • the motor current is measured and, if a certain motor current value is exceeded, the reverse current is activated. This ensures that the motor starts quickly and smoothly, even in unfavorable positions.
  • Figure 1 shows a pressure sprayer or a pressure spraying device 1 according to the prior art in a first embodiment with a hand pump in section.
  • the pressure sprayer 1 shown comprises a pressure vessel 3 and a hand pump 5.
  • the hand pump 5 is connected to the pressure vessel 3 via a screw connection 7.
  • the hand pump 5 can be detached from the pressure vessel 3 in order to fill the interior of the pressure vessel 3 with spray liquid.
  • the spray liquid can be filled up to a maximum of the fill level 11.
  • the volume V spray of the spray agent at maximum fill level is 5 l and the volume V gas of the gas cushion is 2 l.
  • the total volume of the device would then be 7 l.
  • the ratio of the volume V gas of the gas cushion to the volume V spray of the spray agent determines the application time of the spray agent after pressure has been built up in the pressure sprayer.
  • the pressure in the pressure sprayer is built up by means of the hand pump 5.
  • the Fig. 1 shown hand pump by an electric pump which is preferably used in an application such as in the Figures 2 to 4
  • the pressure is then built up instead of manually pumping using the Fig. 2 to Fig. 4
  • the electric pump shown in the drawing and integrated into the insert according to the invention can also be connected to the pressure vessel via a screw connection like the hand pump according to Figure 1 be connected
  • a constant pressure in the container can be set, preferably in the range of 1 to 3 bar, through constant pressure monitoring of the pressure in the container and a control system that switches the electric pump on and off depending on the container pressure, which is determined by the pressure sensor. This is not possible with a hand pump. With a hand pump, the set pressure decreases continuously.
  • FIG. 2 shows the housing 100 of the insert with the electric pump, which is used instead of the hand pump, as in Fig. 1 shown, can be inserted into the pressure container.
  • the housing 100 of the insert comprises a carrying handle 102, as well as a thread, in particular a screw threaded connector 104 for screwing the insert into the container of the pressure sprayer.
  • the carrying handle 102 is designed such that it is able to support the weight of the filled container.
  • the screw threaded connector 104 is interchangeable. This means that the pump can also be adapted for other sprayers with different threads and can be connected to a wide variety of containers. All necessary settings for the pressure sprayer can be made on the display device or display 106 of the housing in which the pumps are housed.
  • the housing of the insert is constructed asymmetrically. Electrical contacts 110 are provided on the side of the wall 108, which can be easily connected to the storage device or the accumulator by sliding the storage device onto slide rails 112 that are attached to the side of the housing. The electrical contacts 110 then engage in corresponding recesses in the electrical storage device, thus establishing an electrical connection between the accumulator and the housing and ensuring the electrical supply to the pump arranged in the housing. Because the storage device can be easily removed from the side wall via the slide rails 112 and reattached thereto, a quick and problem-free exchange of the storage device is possible without the container having to be opened to change the accumulator.
  • FIG 3a shows a sectional view of the housing 110 of the insert with concealed circuit board 210 of the control unit.
  • the unit or housing 110 comprises the electric pump.
  • the so-called motor pump unit 200 with the electric pump is arranged obliquely in the housing 110.
  • the pump used in the motor pump unit is preferably a pendulum piston pump 202.
  • the piston 210 of the pendulum piston pump is connected to the cylinder head via an elastomer sleeve 207.
  • the cylinder consists of a cylinder cover 204 with an intake valve and an exhaust valve 206.
  • the compression process carried out with the aid of the piston 210 of the pump generates heat, which is preferably dissipated via the cylinder head.
  • both the cylinder head and the cylinder cover 204 are made of a metallic material, preferably an aluminum injection molding.
  • the cylinder base housing 208 is made of a plastic material since no heat dissipation is required.
  • the air sucked from the insert housing is compressed by the pump's piston 210 and fed via the outlet valve 206 into a pressure hose 220, which leads into the pressure sprayer's container connected to the insert.
  • the pressure hose is made of silicone, PU, or PVC.
  • the pressure hose 220 itself is connected to the container using a pressure nipple 222.
  • the compressed air is fed via the pressure hose 220 and the pressure nipple 222 into the pressure container of the pump sprayer.
  • the pump's inlet valve only opens when compressed air flows toward the nipple. This allows the pressure in the connected container of the pressure sprayer to be maintained even when the pump is switched off.
  • a further hose 230 is provided, which connects a pressure sensor 221 to another nipple 232, which leads into the container (not shown).
  • the further hose 230 can also be identical to the pressure hose 220. This arrangement ensures that the pressure in the container is measured by the pressure sensor 221.
  • the arrangement of the pressure sensor 221 on the circuit board 201 is based Fig. 3b , which like Fig.
  • the circuit board also includes all of the control electronics for evaluating the pressure measurement and correspondingly controlling the electric pump to maintain a constant pressure in the container (not shown), preferably in the range of 1 bar to 3 bar.
  • the circuit board also includes the electronics for the display device with the help of which, for example, a predetermined pressure can be set.
  • the pressure sensor 221 is located on the circuit board 201, preferably on the back of the control panel with the display (not shown). The pressure sensor is connected to the housing at the container opening via the hose 230 and allows the pressure in the container to be determined.
  • the air pressure in the container drops as the spray liquid flows out.
  • This pressure loss is detected by the pressure sensor 221 and processed by the pressure control as part of the control electronics, which is also arranged in the housing of the insert on the circuit board 201.
  • the pressure control switches the pump on and compressed air is pumped into the tank until an upper limit pressure is reached.
  • the control switches the pump off again.
  • a working pressure below the set target pressure is established in the tank. This then causes the pump to run continuously.
  • the pump is designed to provide a sufficient volume flow for various spray applications and requirements in a pressure range of 1 to 3 bar, here in particular 1.5 to 2.5 bar.
  • a pressure of 1.5 to 2.5 bar is typical for crop protection applications. If the most even wetting possible with insecticides is required, the pressure is set so that small droplets are present. The pressure is then in the range 2.0 to 2.5 bar.
  • the tolerance for switching the pump on and off at a given setpoint is in the range of 2 to 20%, preferably 10%.
  • the preferred pressure for applying herbicides is in the range of 1.0 to 2.0 bar, preferably approximately 1.5 bar.
  • Foam generation requires a higher pressure of over 2 bar up to 3 bar and a corresponding flow rate. Satisfactory foam quality is achieved in the range of 2 to 2.5 bar, but at least 2 bar.
  • the control is now carried out so that, for example, a pressure of 2.0 bar is set. If the pressure drops by 10% to 1.8 bar, for example, due to the application of the spray agent, the pump in the form of a pendulum piston pump 202 is activated upon detection of a pressure of 1.9 bar by the pressure sensor 221 on the circuit board 201, and the pressure in the container is increased to the set pressure of 2.0 bar. This ensures that the volume flow to be applied always remains in the range of around 6 l/min.
  • FIG 4 A top view of the housing of the insert with the storage device attached is shown.
  • the display is switched off using button 400.
  • Button 402 allows the pressure to be preset, preferably in 0.1 bar increments using buttons 404 and 406.
  • the device displays the battery charge level when switched on, preferably for a period of 0.5 to 10 seconds, in particular 3 to 6 seconds.
  • a reverse mode can be implemented. This prevents the motor from stalling in the event of an unfavorable piston position by operating it in reverse mode, meaning the motor briefly runs backward and then restarts.
  • the motor's reverse mode is activated when the motor current exceeds a certain value.
  • the storage device 500 arranged laterally on the housing, in particular the accumulator, preferably the Li-ion accumulator, is well Figure 4
  • the storage device, in particular the accumulator 500 snaps into the provided holder with slide rails and can be removed for recharging by simply pressing a button on the storage device. Due to its ease of insertion via the slide rails located on the housing, which allow the accumulator or storage device to be slid on until the contacts are connected to the storage device, the accumulator can be replaced very easily.
  • the storage devices used especially the rechargeable batteries, have a nominal voltage of 18V. Batteries of various capacities between 1.5 and 8 Ah can be used. With a capacity of 2.5 Ah, the theoretical usable capacity for one battery charge is approximately 60-80 liters of sprayable liquid. Another advantage of these batteries is that they can also be used for other compatible electrical devices.
  • the accumulator is provided with an additional protective cover in order to protect the electrical connection of the accumulator to the housing from the ingress of moisture.
  • FIG 5 A pressure sprayer with the insert 1000 according to the invention is shown.
  • the container 1100 into which the insert 1000 according to the invention is located with the electric pump according to the invention is clearly visible.
  • the container 1100 of the pressure sprayer is provided with a carrying strap 1102. Also clearly visible is the pressure lance 1104 attached to the container of the pressure sprayer, with which the liquid contained in the container can be dispensed. Furthermore, the insert with the pump also includes a carrying handle 1010. If no carrying strap 1002 is present, the The pressure sprayer can be carried using the carrying handle 1010 alone.
  • the carrying handle is designed to support the weight of the filled container.
  • the invention provides, for the first time, a pressure sprayer with an electric pump in which the electrical supply unit can be easily replaced without, for example, having to release pressure from the container. Furthermore, the use of the pressure sprayer according to the invention is characterized by the fact that a container pressure can be set and maintained with the help of the control system even when liquid is being dispensed from the container of the pressure sprayer.

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  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Nozzles (AREA)

Claims (15)

  1. Pulvérisateur sous pression (1) avec
    un réservoir sous pression (1100),
    un insert contenant une pompe électrique (200),
    une installation d'accumulation électrique (500) pour l'alimentation en énergie de la pompe électrique (200), laquelle pompe électrique (200) crée une pression dans le réservoir dans un espace intérieur d'un réservoir sous pression,
    l'installation d'accumulation électrique (500) étant disposée à l'extérieur de l'espace intérieur du réservoir sous pression (1100), de préférence latéralement sur la paroi extérieure du réservoir sous pression ou latéralement sur un boîtier (100) de l'insert pour le pulvérisateur sous pression,
    caractérisé en ce que le boîtier (100) de l'insert comporte un raccord fileté (104) pour visser l'insert dans le réservoir sous pression (100) et aussi un affichage (106) avec une touche (404, 406) pour régler une pression dans la plage de 1 à 3 bars, de préférence de 1,5 bar à 2,5 bars, de préférence par paliers de 0,1 bar, l'affichage (106) indiquant la pression réglée,
    et le pulvérisateur sous pression comporte un capteur de pression (221) et une régulation qui démarre et arrête la pompe électrique selon la pression dans le réservoir qui est déterminée au moyen du capteur de pression (221), de sorte que la pression réglée sur l'afficheur (106) est maintenue.
  2. Pulvérisateur sous pression selon la revendication 1, caractérisé en ce que le capteur de pression est disposé dans le boîtier de l'insert, en particulier sur une platine (201).
  3. Pulvérisateur sous pression selon la revendication 2, caractérisé en ce que la platine (201) comprend outre le capteur de pression (221), faisant partie de la régulation, l'électronique de commande pour l'analyse de la mesure de la pression et l'activation de la pompe électrique pour maintenir la pression dans le réservoir réglée sur l'afficheur.
  4. Pulvérisateur sous pression selon l'une des revendications 1 à 3, caractérisé en ce que la pompe électrique est une pompe à piston oscillant.
  5. Pulvérisateur sous pression selon l'une au moins des revendications 1 à 4, caractérisé en ce que le pulvérisateur sous pression, en particulier l'insert pour le pulvérisateur sous pression, comporte une soupape d'échappement (206) et un flexible sous pression (210) et l'air comprimé par un piston de la pompe est amené via la soupape d'échappement (206) dans le flexible sous pression (210).
  6. Pulvérisateur sous pression selon la revendication 5, caractérisé en ce que le réservoir sous pression (1100) comprend un raccord de pression (222) qui est relié au flexible sous pression (210).
  7. Pulvérisateur sous pression selon l'une au moins des revendications 1 à 6, caractérisé en ce que la régulation de la pression comprend une limite supérieure, laquelle limite supérieure est réglable par paliers, de préférence de 1,6 bar, 1,8 bar, 2,0 bars.
  8. Pulvérisateur sous pression selon l'une au moins des revendications 1 à 7, caractérisé en ce que la régulation de la pression comprend une limite interne et elle est conçue de telle manière la pompe est mise en service si une limite de pression inférieure n'est pas atteinte qui correspond de préférence à la limite de pression supérieure réduite d'une hystérésis, particulièrement de préférence entre 2 % et 20 %, de préférence de 10 %, et/ou mise hors service si la limite supérieure réglée de préférence par paliers est dépassée.
  9. Pulvérisateur sous pression selon l'une au moins des revendications 1 à 8, caractérisé en ce que la plage de pression dans laquelle la limite de pression supérieure est réglée se situe entre 1 et 3 bars, de préférence entre 1,5 et 2,5 bars.
  10. Pulvérisateur sous pression selon l'une au moins des revendications 1 à 9, caractérisé en ce que la pompe comprend un mode d'inversion.
  11. Pulvérisateur sous pression selon l'une au moins des revendications 1 à 10, caractérisé en ce que le boîtier (100) de l'insert comprend une poignée de transport (1010) conçue pour supporter le poids du réservoir rempli.
  12. Pulvérisateur sous pression selon l'une des revendications 1 à 11, caractérisé en ce que l'insert comprend un boîtier (104) dont le filetage est conçu pour être interchangeable de, façon à permettre l'adaptation de l'insert à des réservoirs munis de filetages différents.
  13. Pulvérisateur sous pression selon l'une des revendications 1 à 12, caractérisé en ce que sont disposés latéralement sur une paroi (108) du boîtier de l'insert des contacts électriques (110) dans lesquels des sorties de l'installation d'accumulation électrique (500) s'enclenchent pour l'alimentation en énergie et des rails de glissement (112) pour le guidage de l'installation d'accumulation électrique et son emboîtement sur les contacts (110).
  14. Pulvérisateur sous pression selon l'une des revendications 1 à 3, caractérisé en ce que l'installation d'accumulation électrique comprend un accumulateur à ions lithium, en particulier d'une capacité de 1,5 Ah à 8 Ah, de préférence de 2,5 Ah.
  15. Pulvérisateur sous pression selon l'une des revendications 1 à 14, caractérisé en ce que l'installation d'accumulation électrique, en particulier l'accumulateur à ions lithium, comprend une enveloppe de protection conçue de telle manière que des connexions électriques de l'installation d'accumulation électrique soient protégées contre la pénétration d'humidité.
EP21198194.9A 2020-10-01 2021-09-22 Pulvérisateur à pression à jet porté Active EP3978141B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102020125632.9A DE102020125632A1 (de) 2020-10-01 2020-10-01 Drucksprühgerät

Publications (2)

Publication Number Publication Date
EP3978141A1 EP3978141A1 (fr) 2022-04-06
EP3978141B1 true EP3978141B1 (fr) 2025-05-14

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EP21198194.9A Active EP3978141B1 (fr) 2020-10-01 2021-09-22 Pulvérisateur à pression à jet porté

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DE (1) DE102020125632A1 (fr)

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Publication number Priority date Publication date Assignee Title
ES1272859Y (es) 2021-04-29 2021-10-18 Coop Goizper S Pulverizador presurizado
IT202200026259A1 (it) * 2022-12-21 2023-03-21 Vitaliano Donato Kit passeggiata con idropulitrice post deiezione animali

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DE102009048572A1 (de) 2009-10-07 2011-04-28 Markus Kress Drucksprühgerät
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DE102010025680A1 (de) 2010-06-30 2012-01-05 Markus Kress Einsatz für einen Druckbehälter mit einer elektrischen Pumpe, Druckbehälter mit einem derartigen Einsatz sowie Verfahren zum Aufbau und zum Halten eines Ausbringdruckes in einem Drucksprühgerät
JP2013169486A (ja) * 2012-02-17 2013-09-02 Hitachi Koki Co Ltd 高圧洗浄装置
US9538872B2 (en) * 2014-03-07 2017-01-10 Prince Castle LLC Pressurized viscous condiment dispenser
DE102014012433A1 (de) * 2014-08-26 2016-03-03 Markus Kress Vorrichtung zur Zumischung eines flüssigen Substrates und Vorrichtung zum Versprühen einer Flüssigkeit
US20160243570A1 (en) 2015-02-13 2016-08-25 Green Shoots, LLC Electric tank dispenser having a pressurizable space and selectable pressure levels
CN104941843B (zh) 2015-06-25 2017-07-25 苏州科劳斯贸易有限公司 一种电动喷雾器
US10532370B2 (en) * 2015-10-20 2020-01-14 Phillip B. Schrum Portable pressurized sprayer

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