Vespidae Nest Neutralization System

Abstract

Title: System for neutralizing a nest of vespids The invention relates to a system (1) for neutralizing a nest (2) of flying insects, by steam projection comprising a neutralizing device (30) carried by a gripping member (20), the neutralizing device comprising a piercing member (31) configured to pierce a nest and comprising at least one projection member (310) configured to be supplied with steam (5), and to project the fluid in at least one direction, characterized in that the neutralizing device comprises a bell (32) having an internal volume (320), the piercing member and the fluid projection member being located inside the internal volume, the neutralizing device being configured so that when a nest is housed, at least partly in the bell, the piercing member and the projection member can penetrate into the nest. Figure for abstract: Fig.1

Description

Title of the invention: Vespidae nest neutralization system Technical field

[0001] The present invention relates to the field of destroying nests of flying insects, more particularly vespids such as Asian hornets or the like. It relates in particular to a system for neutralizing vespids, preferably wasps and hornets, as well as neutralizing the nest. STATE OF THE ART

[0002] The Asian hornet is one of the main causes of mortality in bee colonies in France. There are few natural predators for the Asian hornet in France and several techniques for trapping / eliminating the hornet at the foot of the apiary with still low and very variable performances are studied but none entirely satisfies the scientific world. Neutralization techniques generally use mechanical, chemical, electrical traps, toxic baits, or even protection by wire cage. These forms of control are located near the apiary and on the basis of capturing insects individual by individual.

[0003] When the presence of an Asian hornet nest is identified, or that of a colony of wasps or European hornets which would pose a risk to human health, the current reference method used to destroy it is to inject a biocidal product into the nest with rapid action. However, the use of such a product can have harmful effects in nature and presents a major danger, among others, for other insects, birds as well as for the health of operators. This method also has an effect of polluting water and soil. A solution of this type is presented in document FR3030190A1.

[0004] Another solution, disclosed in a scientific article “Characterizing thermal tolerance in the invasive yellow-legged homet (Vespa velutina nigrithorax): the first step toward a green control method, Ruiz-Christi, L, Berville, L., Darrouzet E. (2020)”, consists of injecting steam to ensure rapid propagation of heat in the nest. The aim is to induce hyperthermia in the insects. In practice, it is observed that many vespids resist, in particular vespids outside the nest at the time of treatment. The effectiveness of the system is therefore not satisfactory. Due to this low effectiveness, professionals in the sector have turned away from this solution. Indeed, the device does not have sufficient power and is very bulky.

[0005] An object of the present invention is therefore to propose a solution making it possible to limit, or even eliminate, at least some of the disadvantages presented by the prior art solutions.

[0006] Another object of the present invention is to propose a solution for effectively and quickly neutralizing a nest of vespids while reducing the environmental impact.

[0007] Other objects, features and advantages of the present invention will become apparent from the following description and accompanying drawings. It is understood that other advantages may be incorporated. SUMMARY

[0008] To achieve this objective, according to a first aspect, a system is provided for neutralizing a nest of flying insects, typically vespids, preferably wasps and / or hornets, by projection of steam comprising a neutralization device intended to be carried by a gripping member, such as a pole, manipulable by an operator, the neutralization device comprising a piercing member configured to pierce a nest and comprising at least one projection member configured to be supplied with pressurized fluid, preferably to be supplied with steam, and to project the fluid in at least one direction or even throughout the entire volume of the structure of the nest.

[0009] The neutralization device comprises a bell having an internal volume, the piercing member and the steam projection member being located inside the internal volume. The neutralization device is configured so that when a nest is housed, at least partially in the bell, the piercing member and the projection member can penetrate into the nest.

[0010] Thus, the invention proposes a solution for effectively neutralizing a nest of vespids. The bell makes it possible to encompass the nest as well as all the vespids that may exit it during neutralization.

[0011] The invention thus makes it possible to provide heat through pressurized hot water or steam to the vespids in the nest and to those which escape from it.

[0012] The underlying idea is therefore a method for applying heat to the vespids, both inside the nest and to those that may escape from it. This application of heat can be achieved either by the use of pressurized hot water or by the projection of steam. The objective is to effectively neutralize the vespids by exposing the entire nest as well as any insects that may escape from it to a heat source.

[0013] In the context of the development of the present invention, it was noted that in the absence of the bell, very often some vespids escape from the nest during the piercing and injection of steam inside the nest. It was also noted that the few escaped vespids can return to the vicinity of the nest several hours after the injection of steam inside the nest. These escaped vespids may adopt aggressive behavior that is dangerous to people in the vicinity of the nest.

[0014] The invention also offers, thanks to the use of the bell, a more efficient increase in temperature, resulting in better efficiency in the neutralization of vespids. This system is distinguished by its efficiency while being light, handy and, consequently, at a limited cost.

[0015] Finally, steam injection makes it possible to avoid the use of dangerous products, whether for the environment or for operators.

[0016] Another aspect relates to a method of neutralizing a vespid nest using a system as described above. The method comprises at least a first phase comprising the following steps: • positioning the neutralization device so as to house at least partially and preferably entirely the nest in the internal volume of the bell, and while keeping the nest at least partially housed in the internal volume of the bell, • drilling of the nest by the drilling device, • at least one injection of fluid, for example steam into the nest by the at least one projection member.

[0017] Thus, the use of the system is simple and quick for any operator. A limited number of steps are necessary to accomplish the neutralization of a vespid nest in an efficient and prompt manner. BRIEF DESCRIPTION OF THE FIGURES

[0018] The aims, objects, as well as the characteristics and advantages of the invention will emerge more clearly from the detailed description of an embodiment thereof which is illustrated by the following accompanying drawings in which:

[0019] [Fig.l] [Fig.l] schematically represents a system according to a first embodiment.

[0020] [Fig.2] [Fig.2] schematically represents a system according to another embodiment.

[0021] [Fig.3] [Fig.3] represents a rear view of the neutralization device according to one embodiment of the invention.

[0022] [Fig.4] [Fig.4] is a diagram showing a perspective view of the neutralization device according to one embodiment of the invention. [Fig.5] [Fig.5] is a diagram showing a side view of the device positioned against a support and piercing a nest according to one embodiment of the invention.

[0023] The drawings are given as examples and are not limiting of the invention. They constitute schematic representations of principle intended to facilitate understanding of the invention and are not necessarily on the scale of practical applications. DETAILED DESCRIPTION

[0024] Before commencing a detailed review of embodiments of the invention, optional features which may possibly be used in combination or alternatively are set out below.

[0025] According to one example, the neutralization system comprises a generator configured to produce said pressurized fluid, preferably a hot gas, preferably steam, preferably water vapor. It may also be liquid hot water. The system is configured to supply the at least one projection member with said pressurized fluid.

[0026] According to one example, the bell is configured so as to at least partially and preferably entirely encompass the nest.

[0027] This makes it possible to position the nest in a closed environment, preferably hermetic to the passage of vespids, in order to have satisfactory efficiency.

[0028] According to one example, the neutralization device comprises a base configured to be integral with the gripping member, the bell being articulated in rotation on the base along at least one axis of rotation, so as to be able to tilt the bell along at least one direction of tilt.

[0029] In a given example, the neutralization device consists of a base designed to be fixed to the gripping member. The bell, for its part, is articulated in rotation on the base, along at least one axis of rotation, thus making it possible to tilt the bell in at least one direction of tilt.

[0030] This allows the bell to be oriented and to reach difficult-to-access angles. This makes the treatment of the nest easier and more efficient.

[0031] According to one example, the piercing member is articulated in rotation on the base along at least the axis of rotation, so as to be able to tilt the piercing member along at least one direction of tilt.

[0032] This allows the drilling member to be oriented and to reach difficult-to-access angles. This makes the treatment of the nest easier and more efficient.

[0033] According to one example, the bell and the piercing member are integral in rotation around said axis of rotation, so as to be able to tilt the bell and the piercing member in a first direction of inclination.

[0034] This automatically ensures correct positioning of the piercing member by controlling the positioning of the bell relative to the nest. This makes piercing the nest easier.

[0035] According to one example, at least one of the bell and the piercing member is articulated in rotation on the base along at least one additional axis of rotation, so as to be able to tilt the bell along at least one second direction of tilt.

[0036] This ensures that the bell and / or piercing member is correctly positioned and can reach hard-to-reach angles. This makes the nest treatment easier and more efficient.

[0037] According to one example, the piercing member extends in a main direction called the main piercing direction and the main inclination direction is substantially perpendicular to the main piercing direction.

[0038] This ensures that the drilling direction is satisfactory and thus facilitates the drilling of the nest and therefore the neutralization of the vespids.

[0039] According to one example, the projection member is configured to project the steam in a main projection direction and the main projection direction is substantially perpendicular to the main piercing direction.

[0040] This allows good diffusion of the steam in the bell and allows good efficiency of the neutralization device.

[0041] According to one example, the piercing member comprises a plurality of projection members positioned spaced apart along the length of the piercing member.

[0042] This makes it possible to diffuse steam both into the nest after piercing it and into the bell, thus improving the efficiency of the device.

[0043] According to one example, the bell has a passage opening intended to allow the passage of the nest and a bottom, the piercing member being located in the bottom, preferably in line with said passage opening.

[0044] This ensures that the device is easily and correctly installed to ensure optimal neutralization effectiveness.

[0045] According to one example, the bell has walls that are entirely closed except for said passage opening.

[0046] This makes it possible to have a device which prevents as much as possible vespids escaping from the nest from escaping from the neutralization device.

[0047] According to one example, the passage opening defines a perimeter configured to be applied to a surface to close the passage opening.

[0048] This allows, after installation of the device, to have the nest in a relatively closed environment and hermetic to the passage of vespids. At the very least this makes it possible to ensure that no vespids trapped in the neutralization device can escape and therefore allow effective neutralization.

[0049] According to one example, the bell is configured to, at least at the periphery, be deformable, preferably elastically, preferably so as to be able to adapt to the shape of a support on which the nest is positioned.

[0050] This allows for adaptation to the support, thus preventing any vespid escape, which improves the efficiency of the device and, consequently, of the system.

[0051] According to one example, the bell is made of an elastically deformable material.

[0052] This allows for a bell that fits even on a non-flat surface.

[0053] According to one example, the neutralization system does not include an inflatable member.

[0054] According to one example, the bell is not inflatable.

[0055] According to one example, the bell comprises ribs. This allows for simplified deformation of the bell so as to allow for better efficiency of the system.

[0056] According to one example, the neutralization device is not configured to detach the nest from a support.

[0057] According to one example, the neutralization device is configured such that at least one of the bell and the piercing member is removably mounted on the base.

[0058] This makes it possible to modify the bell and the piercing member according to the nest in order to adapt to it and therefore to effectively neutralize the vespids.

[0059] According to one example, the system comprises a base configured to be secured to the gripping member, the bell being articulated in rotation on the base along at least one axis of rotation, so as to be able to tilt the bell along at least one direction of tilt and in which the base is configured to be removably mounted on the gripping member.

[0060] This allows the gripping member to be modified in order to reach all possible heights. This makes the treatment of the nest easier and more efficient.

[0061] According to one example, the system comprises at least one gripping member. Preferably, the system comprises a set of gripping members of different lengths.

[0062] This allows the gripping member to be modified in order to reach all possible heights. This makes the treatment of the nest easier and more efficient.

[0063] According to one example, the base is integral with the gripping member and forms a single-piece part with the gripping member.

[0064] According to one example, the gripping member is a pole, for example a telescopic pole.

[0065] This allows the neutralization device to be used at greater and adjustable distances. This makes the treatment of the nest easier and more effective.

[0066] According to one example, the system comprising a generator configured to produce said pressurized fluid, preferably steam, to supply the at least one projection member with said pressurized fluid and in which the generator comprises a reservoir and a boiler positioned remotely, the generator being connected to the projection member via a flexible conduit of so as to supply the projection organ with pressurized fluid.

[0067] This allows for a lighter and more manageable system for a user and thus facilitates the treatment of a nest.

[0068] According to one example, the bell has an internal volume of between 5L and 70L. Preferably, the bell has an internal volume of between 40L and 60L.

[0069] This allows the entire nest to be integrated into the internal volume of the bell to ensure that no vespids escape and to have an efficient system.

[0070] According to one example, the system comprises a set of bells having different internal volumes.

[0071] This allows the bell to be adapted to any possible nest size and therefore ensures that in position the nest is enclosed within the internal volume of the bell. The set of bells ensures the effectiveness of the neutralization device.

[0072] According to one example, the set of bells comprises at least a first bell having an internal volume VI and a second bell having an internal volume V2 such that V2 > VI.

[0073] According to one example, the method does not include a step of capturing the nest.

[0074] This allows the nest not to be moved during the intervention and thus avoids a additional aggressiveness of the vespids. The treatment and therefore the use of the system is therefore more effective.

[0075] According to one example, at least several injections of fluid, for example steam, are carried out during the at least one first phase into the nest by the at least one projection member.

[0076] This ensures that the vespids trapped in the neutralization device are effectively neutralized.

[0077] According to one example, a step of removing the bell is carried out after the first phase.

[0078] According to one example, the method comprises a second phase identical to the first phase. This thus makes it possible to treat the vespids which could have been moved away from the nest during the first phase.

[0079] According to one example, the method comprises cleaning the bell after the step of removing the bell and before carrying out at least one second phase comprising the same steps as the at least one first phase.

[0080] According to one example, at least the steps of the first phase are performed while the nest is left in place relative to a base of the nest.

[0081] Thus, the method does not include a step of detaching, by tearing or cutting for example, the nest from its fixing support.

[0082] In the remainder of the description, the term “on” does not necessarily mean “directly on”. Thus, when it is indicated that a part or a member A is in support "on" a part or organ B, this does not mean that the parts or organs A and B are necessarily in direct contact with each other. These parts or organs A and B can either be in direct contact or be supported on each other by means of one or more other parts. The same applies to other expressions such as, for example, the expression "A acts on B" which can mean "A acts directly on B" or "A acts on B by means of one or more other parts".

[0083] The term "solidar" used to describe the connection between two parts means that the two parts are connected / fixed relative to each other, according to all degrees of freedom, unless explicitly specified differently. For example, if it is indicated that two parts are solidar in translation in an X direction, this means that the parts can be movable relative to each other, possibly according to several degrees of freedom, excluding the freedom in translation in the X direction. In other words, if one part is moved in the X direction, the other part performs the same movement.

[0084] In this document, when two parts are indicated as distinct, this means that these parts are separate. They are: • positioned at a distance from each other, and / or • mobile relative to each other and / or • secured to each other by being fixed by added elements, this fixing being removable or not.

[0085] A single-piece unit cannot therefore be made up of two separate parts.

[0086] The terms “substantially”, “approximately”, “of the order of” mean “to within 20%, preferably to within 10%” or, when it comes to an angular orientation, “to within 10°”. Thus, a length substantially equal to a dimension means that a length has a dimension of 5+0.5 mm.

[0087] The present innovation relates to a system 1 for neutralizing a nest 2 of flying insects, typically vespids, preferably wasps and / or hornets, by steam projection. In the present description, steam projection is understood to mean the projection of hot water under pressure with a pressure higher than ambient pressure. This neutralization system 1 makes it possible to heat a nest 2 so as to effectively neutralize the colony of the nest 2 of vespids. Since the neutralization is carried out efficiently, it allows rapid use of the system 1 while being reliable.

[0088] The neutralization system 1 will now be described with reference to FIGS. 1 to 5.

[0089] Generally speaking, the neutralization system 1 comprises a device of neutralization 30 comprising a bell intended to receive in its internal volume the nest of vespids. It also comprises a piercing member 31 intended to penetrate into the nest of vespids in order to inject steam inside the nest. The system is connected to a steam generator 10 to supply steam to the piercing member 31. These different elements will be detailed below.

[0090] The generator 10 is configured to produce hot water under pressure, preferably steam. It can thus enable the production of steam necessary for the neutralization of the vespids.

[0091] The generator 10 can then be connected to a steam projection member, for example carried by the piercing member 31, by means of a flexible conduit 100 so as to supply hot water under pressure to this steam projection member.

[0092] According to one example, the generator 10 comprises a tank and a boiler positioned remotely. The neutralization system 1 is then lighter and more manageable by an operator 4 and thus facilitates the treatment of a nest 2.

[0093] According to one example, the pressure at the outlet of the pressure generator, whether the fluid is steam or liquid water, is greater than 5 bars. Preferably, this pressure is greater than 9 bars. The pressure at the outlet of the pressure generator can be adjusted. Preferably, the pressure is adjusted according to the size of the nest 2. Thus, the larger the volume of the nest 2, the greater the pressure at the outlet of the generator will be.

[0094] The neutralization device 30 is intended to be carried by a gripping member 20. The gripping member 20 is intended to be manipulated by an operator 4.

[0095] The neutralization device 30 comprises a piercing member 31. The piercing member is configured to pierce a nest 2. Thus the piercing member 31 may have, according to one example, a pointed shape at one end, so as to easily penetrate into the nest 2.

[0096] The piercing member 31 comprises at least one projection member 310. The projection member 310 is configured to project hot water under pressure, preferably steam 5 in at least one direction. The projection member 310 may comprise or be formed of a nozzle.

[0097] Preferably, the piercing member 31 comprises several projection members 310. For example, these different projection members 310 are distributed along a longitudinal direction of the piercing member 31. Thus, if the piercing member 31 has a main dimension, called the main piercing direction, along its longitudinal direction, then the different piercing members can be distributed, periodically or non-periodically along this longitudinal direction. In a combined or alternative manner, the projection members 310 can be distributed concentrically around the piercing member 31. For example, several projection members 310 can be distributed around an axis passing through the longitudinal direction. This makes it possible to have a projection of steam in several directions in order to diffuse the steam throughout the volume of the nest.

[0098] The neutralization device 30 also comprises a bell 32. The bell 32 has an internal volume 320. Inside the internal volume 320 are located the piercing member 31 and therefore the projection member 310 of steam 5. Thus, when a nest 2 is housed, at least partly in the bell 32, the piercing member 31 and the at least one projection member 310 can penetrate into the nest 2.

[0099] According to an example, illustrated in figures 1, 2 and 5 the bell 32 is configured so as to at least partially and preferably entirely encompass the nest 2. The nest 2 is thus positioned in a closed environment. Preferably, it is positioned in an environment sufficiently hermetic to prevent the passage of vespids outside the internal volume of the bell 32. The bell 32 does not, however, need to present with the support a perfect hermeticity. The cooperation of the bell 32 and the support can allow a part of the steam or water projected by the system to pass through. It is also possible to provide a few orifices in the bell 32, the cross-section of which does not allow the passage of vespids, in order to avoid too great a rise in pressure inside the volume of the bell and the creation of a localized current of fluid between the inside and the outside, which would cause the expulsion of vespids from the bell 32.

[0100] The bell 32 will be described in more detail later.

[0101] According to one example, the neutralization device 30 comprises a base 33. The base 33 configured to be integral with the gripping member 20. The base 33 may, according to one example, comprise several separate parts. The base 33 may also be a single-piece part. The base 33 thus makes it possible to connect the neutralization device 30 to the gripping member 20.

[0102] According to one example, the bell 32 is articulated in rotation on the base 33 along at least one rotation axis RL. The bell 32 can thus, thanks to the rotation axis RI, tilt along at least one tilt direction. The bell 32 is thus orientable in order to reach nests 2 positioned at angles that are difficult to access.

[0103] According to one example, the piercing member 31 is articulated in rotation on the base 33 along at least the axis of rotation RL. The piercing member 31 can thus tilt along at least one direction of tilt.

[0104] The adjustable orientation of the drilling member 31 thus makes it possible to reach angles that are difficult to access. The treatment of the nest 2 is thus made easier and more efficient.

[0105] According to one example, the bell 32 and the piercing member 31 are integral in rotation around said axis of rotation RL. Thus, the piercing member 31 and the bell 32 are positioned so as to ensure good positioning of the neutralization device. lisation 30 and thus ensure good efficiency of the neutralization system 1. Thus, the bell 32 and the piercing member 31 can tilt in a first direction of inclination.

[0106] According to one example, at least one of the bell 32 and the piercing member 31 is articulated in rotation on the base 33 along at least one additional axis of rotation R2. Preferably, the bell 32 and the piercing member 31 are articulated in rotation on the bracket 33 along at least one additional axis of rotation R2. Thus, at least one of the bell 32 and the piercing member 31 can tilt along at least one second direction of tilt. The bell 32 and the piercing member 31 can thus have degrees of freedom along at least two directions making it possible to reach positions that are difficult to access. The treatment of the nest is then made easier and more efficient.

[0107] Bell 32:

[0108] According to one example, the bell 32 has a passage opening 321 intended to allow the passage of the nest 2. The passage opening 321 thus allows the insertion of the nest 2 into the internal volume 320 of the bell 32. Preferably the passage opening 321 is not in contact with the nest 2. The entirety of the nest 2 can then be integrated into the internal volume 320 of the bell 32 in order to ensure that no vespids escape and to have an effective system 1.

[0109] According to one example, the bell 32 has an internal volume of between 5L and 70L. Preferably, the bell 32 has a volume of between 40L and 60L.

[0110] According to one example, the passage opening 321 defines a perimeter 3210. The perimeter 3210 is configured so as to be applied to a surface 3 to substantially close the passage opening 321. The perimeter 3210 can then be at least partially, preferably totally, in contact with the surface 3. The nest 2 can then be housed in a relatively closed and preferably hermetic environment. At the very least, this makes it possible to ensure that no vespids trapped in the neutralization device can escape and therefore allow effective neutralization.

[0111] According to one example, the bell 32 is configured to be deformable, at least at the level of the periphery 3210. Preferably, the periphery 3210 is deformable so as to be able to adapt to the shape of a support 3 on which the nest 2 is positioned. The adaptation to the support 3 of the periphery 3210 and therefore of the bell 32 makes it possible to prevent a vespid from escaping, thereby improving the effectiveness of the device 30 and therefore of the system 1. The deformable nature of the periphery 3210 and preferably of the entire bell 32, makes it possible to further simplify the proper trapping of the nest 2 in the bell and ideally a good hermeticity of this trapping. Hermetic trapping will be defined as a cooperation of the periphery 3210 on the support which defines between these elements an interface not having an orifice whose dimension maximum is greater than Do. Preferably Do is < 2 centimeters. Preferably Do is < 1 centimeter. Preferably Do is < 0.5 centimeters. This limits, or even prevents, the risk of vespids escaping through this orifice. Naturally, if the support has strong irregularities, such as a stone wall with strong reliefs, then locally orifices may form whose dimension is greater than Do.

[0112] According to one example, the surface, otherwise called support in the present description 3 can be taken from a wall, a ceiling, a flat surface or a surface having irregularities. Thus, the device 30 can be positioned against a large part of the supports 3 on which the nests 2 can be positioned.

[0113] According to one example, the bell also comprises a bottom 322. The bottom 322 may be intended to accommodate the piercing member 31 on a first face. A second face of the bottom 322, opposite the first face, may be in contact with the base 33.

[0114] According to one example, the bell 32 has walls 323 that are entirely closed except for said passage opening 321. Thus, the neutralization device 30 makes it possible to prevent a maximum number of vespids escaping from the nest 2 from escaping from the neutralization device 30.

[0115] According to one example, the bell 32 is elastically deformable. It is configured to: • deform under force from the user, typically when the latter presses the bell 32 against the support; • return to its position in the absence of any request.

[0116] According to one example, the bell 32 is made of an elastically deformable material.

[0117] The bell 32 can fit even on a non-flat surface.

[0118] Alternatively, the bell 32 may have a rigid structure. The bell 32 may then have ribs allowing deformation of the periphery 3210 while maintaining a certain rigidity. The bell 32 is thus reinforced and is easily manipulated by an operator 4. Thus, the bell 32 is not inflatable and the neutralization system 1 does not include an inflatable member.

[0119] The piercing member 31:

[0120] According to one example, the piercing member 31 is located in the bottom 322 of the bell 32. Preferably the piercing member 31 is positioned in line with the passage opening 321. This ensures that the device is put in place easily and correctly to ensure optimal neutralization efficiency.

[0121] According to one example, the piercing member 31 extends in a main direction called the main piercing direction P. The piercing member 31 can thus extend longitudinally over a length L. The main inclination direction of the piercing member 31 can thus be substantially perpendicular to the direction main drilling direction P. Thus, the drilling member 31 can be positioned so as to drill the nest 2 in the main drilling direction P. The drilling of the nest 2 is preferably carried out substantially perpendicularly to the main inclination direction so as to ensure that the drilling direction is satisfactory and thus facilitate the drilling of the nest 2 and therefore the neutralization of the vespids.

[0122] According to one example, the projection member 310 positioned on the piercing member 31 is configured to project the steam 5 in a main projection direction. The main projection direction can then be substantially perpendicular to the main piercing direction P. Thus, the steam 5 is projected inside the nest 2 after piercing thereof by the piercing member 31. According to one example, the piercing member 31 is configured to project the steam 5 in several main projection directions. According to one example, the piercing member 31 is configured to project the steam 5 in an angular sector, for example in an angular sector greater than 30° and preferably greater than or equal to 90°.

[0123] Preferably, the piercing member 31 comprises a plurality of projection members 310. The plurality of projection members 310 is then positioned spaced apart over the length L of the piercing member 31. Similarly, the plurality of projection members 310 is distributed uniformly over the longitudinal dimension of the piercing member 31. The plurality of projection members 310 can then project steam 5 in several main projection directions, preferably perpendicular to the main piercing direction P. Thus, when the device 30 is positioned and the neutralization system 1 is started, good diffusion of the steam 5 is observed in the bell 32, thus allowing good efficiency of the neutralization device 30.

[0124] According to one example, when the nest 2 is pierced by the piercing member 31, the piercing member 31 may have a portion of its longitudinal dimension outside the nest 2. As a result, at least a portion of the plurality of projection members 310 may be in the bell 32 without being in the nest 2. The steam may then be diffused both into the nest 2 after piercing thereof and into the bell 32, thus the effectiveness of the device 32 is improved.

[0125] Interchangeability of the elements of the neutralization device 30:

[0126] According to one example, the neutralization device 30 is configured so that at least one of the bell 32 and the piercing member 31 is removably mounted on the base 33. Preferably, the bell 32 and the piercing member 31 are removably mounted on the base 33. The bell 32 and the piercing member 31 can thus be adapted to the nest 2 so as to allow effective neutralization of the vespids.

[0127] Thus, according to one example, the system 1 comprises a set of bells 32 having different internal volumes 320. The bell 32 can thus be adapted according to the size of the nest before positioning the neutralization system 1. The set of bells 32 can then comprise at least a first bell 32 having an internal volume VI and a second bell 32 having an internal volume V2 such that V2 > VL

[0128] Similarly, the system 1 can comprise a set of piercing members 31 having different lengths L. The piercing member 31 can thus be adapted according to the size of the nest before positioning the neutralization system 1.

[0129] According to one example, the base 33 is configured to be removably mounted on the gripping member 20. The gripping member 20 can then be adapted according to the distance to be reached to neutralize a nest 2. According to one example, the system 1 then comprises at least one gripping member 20. Preferably, the system 1 comprises a set of gripping members 20 of different lengths. The gripping member 20 can then be a pole, for example a telescopic pole. The treatment of the nest is thereby made easier and more efficient. Alternatively, the base 33 is integral with the gripping member 20 and forms a single piece with the gripping member 20.

[0130] Alternatively, illustrated in [Fig.2], the gripping member 20 is a hollow tube so as to integrate the flexible conduit 100. Similarly, the gripping member 20 and the flexible conduit 100 can be a single element so as to reduce the number of elements of the system 1.

[0131] Neutralization process:

[0132] The neutralization system 1 allows effective neutralization of vespids by applying a method for neutralizing a nest 2 of vespids.

[0133] According to one example, during at least a first phase, the method comprises positioning the neutralization device 30 so as to at least partially and preferably entirely house the nest 2 in the internal volume 320 of the bell 32. This positioning is carried out while keeping the nest 2 at least partially housed in the internal volume 320 of the bell 32.

[0134] According to one example, the at least first phase comprises, subsequently or simultaneously, a piercing of the nest 2 by the piercing member 31. The at least first phase then comprises at least one injection of steam 5 into the nest 2 by the at least one projection member 310. The vespids in the nest 2 are then trapped in the bell 32 and, thanks to the steam 5, heat up until they are neutralized.

[0135] According to one example, the system is configured such that the bell 32 completely encloses the nest before the piercing member 31 begins to penetrate the nest. According to one example, the system may be configured such that the first phase is carried out entirely before the second phase. For example, the bell 32 is configured so as to completely encompass the nest before the piercing member 31 begins to pierce the nest. For this, a first phase of advancement of the system can be provided so that the bell comes to bear on the support then a second phase, during which the piercing member 31 pierces the nest. During this second phase, it can be provided that the bell 32 deforms, preferably elastically, preferably in a direction of advancement of the piercing member 31. It can for example have bellows to facilitate this deformation.

[0136] This allows the integrity of the nest to be maintained and it not to be moved before it is entirely housed in the bell 32. This allows the vespids to be kept in the nest or near the nest while they are trapped in the bell 32. They are then all eliminated for the injection of fluid.

[0137] According to one example, the method does not include a step of grasping the nest. Indeed, the neutralization device 30 is not configured to detach the nest 2 from a support 3. The nest 2 is not moved during the intervention and thus this makes it possible to avoid additional aggressiveness from the vespids. The treatment and therefore the use of the system 1 is therefore more effective.

[0138] Naturally, it is possible that during the treatment the nest may be damaged, broken, or even detach from its base, in particular under the effect of its weight which increases due to the injection of steam. However, this detachment of the nest is not necessary to implement this method.

[0139] According to one example, several injections of steam 5 into the nest 2 by the projection member 310 are carried out during the first phase. This thus increases the effectiveness of the neutralization and therefore of the neutralization system 1.

[0140] According to one example, the method then comprises, after the at least one first phase, a step of removing the bell 32. Between the first phase and a potential second phase, the bell is thus preferably removed from the nest 2.

[0141] According to one example, after the step of removing the bell 32, the operator 4 can clean the bell 32. Cleaning the bell 32 makes it possible to remove any debris from the nest 2 that may be present. Removing the debris makes it possible to subsequently avoid obstacles to a new positioning of the bell 32 on a surface 3. Indeed, the debris could limit the effectiveness of enclosing the nest 2 in the bell 32 and therefore limit the effectiveness of the neutralization system 1. In addition, the debris could come into contact with the nest before the positioning of the bell 32 and therefore cause the vespids to escape from the neutralization device 30.

[0142] According to one example, at least one second phase is then carried out. The second phase is preferably carried out after cleaning the bell 32. The second phase comprising the same steps as the at least one first phase. Carrying out a second neutralization phase ensures the neutralization of vespids that may have been far from nest 2 during the first phase and that may have returned to or near the nest after the previous treatment phase. According to a non-limiting example, the two phases are separated in time by a duration greater than 5 minutes and preferably between 5 and 10 minutes. The second phase can be carried out after the first phase, waiting for a time interval of between 5 minutes and 10 minutes. This thus allows time for vespids far from nest 2 to return to nest 2 while avoiding wasting too much time for operator 4.

[0143] According to one example, at least the steps of the first phase are carried out while the nest is left in place relative to a base of the nest. Thus, the method does not include a step of detaching, by tearing or cutting for example, the nest relative to a base of the nest. The base of the nest can also be referred to as the nest foot.

[0144] The invention is not limited to the embodiments previously described and extends to all embodiments covered by the invention. The present invention is not limited to the examples previously described. Many other variant embodiments are possible, for example by combining features previously described, without departing from the scope of the invention. In addition, the features described in relation to one aspect of the invention may be combined with another aspect of the invention.

[0145] DIGITAL REFERENCES 1: neutralization system 10: generator 100: flexible conduit 20: gripping organ 30: neutralization device 31: piercing organ 310: projection organ 32: bell 320: internal bell volume 321: passage opening 3210: perimeter 322: background 323: walls 33: base 2: nest 3: surface / support 4: operator 5: steam RI: axis of rotation R2: additional axis of rotation P: main drilling direction

Claims

Claims

1. System for neutralizing (1) a nest (2) of flying insects, typically vespids, preferably wasps and / or hornets, by steam projection comprising a neutralizing device (30) intended to be carried by a gripping member (20), such as a pole, manipulated by an operator (4), the neutralizing device (30) comprising a piercing member (31) configured to pierce a nest (2) and comprising at least one projection member (310) configured to be supplied with pressurized fluid, preferably to be supplied with steam (5), and to project the fluid in at least one direction, characterized in that the neutralizing device (30) comprises a bell (32) having an internal volume (320), the piercing member (31) and the fluid projection member (310) being located inside the internal volume (320), the neutralizing device (30) being configured so that when a nest (2) is housed,at least partly in the bell (32), the piercing member (31) and the projection member (310) can penetrate into the nest (2).,

2. System (1) according to the preceding claim, in which the bell (32) is configured so as to at least partially and preferably entirely encompass the nest (2).

3. System (1) according to any one of the preceding claims comprising a generator (10) configured so as to produce said pressurized fluid, preferably steam (5), to supply the at least one projection member (310) with said pressurized fluid.

4. System (1) according to any one of the preceding claims in which the neutralization device (30) comprises a base (33) configured to be integral with the gripping member (20), the bell (32) being articulated in rotation on the base (33) along at least one axis of rotation (RI), so as to be able to tilt the bell (32) along at least one direction of tilt.

5. System (1) according to the preceding claim, in which the piercing member (31) is articulated in rotation on the base (33) along at least the axis of rotation (RI), so as to be able to tilt the piercing member (31) along at least one direction of tilt.

6. System (1) according to any one of claims 4 or 5 in which the bell (32) and the piercing member (31) are integral in rotation around said axis of rotation (RI), so as to be able to tilt the bell (32) and the piercing member (31) according to a first direction of inclination.

7. System (1) according to claims 4 and 5 in combination, in which at least one of the bell (32) and the piercing member (31) is articulated in rotation on the base (33) according to at least one additional axis of rotation (R2), so as to be able to tilt the bell (32) according to at least one second direction of tilt.

8. System (1) according to any one of the preceding claims in which the piercing member (31) extends in a main direction called the main piercing direction (P) and the main inclination direction is substantially perpendicular to the main piercing direction (P).

9. System (1) according to any one of the preceding claims, in which the bell (32) has a passage opening (321) intended to allow the passage of the nest (2) and a bottom (322), the piercing member (31) being located in the bottom (322), preferably in line with said passage opening (321).

10. System (1) according to the preceding claim, in which the bell (32) has walls (323) which are entirely closed with the exception of said passage opening (321).

11. System (1) according to any one of the two preceding claims wherein the passage opening (321) defines a periphery (3210) configured so as to be applied to a surface (3) to close the passage opening (321).

12. System (1) according to the preceding claim, in which the bell (32) is configured to, at least at the periphery (3210), be elastically deformable, preferably so as to be able to adapt to the shape of a support (3) on which the nest (2) is positioned.

13. System (1) according to the preceding claim in which the bell (32) is made of an elastically deformable material.

14. A system according to claim 4 in combination with any one of the preceding claims wherein the neutralizing device (30) is configured such that at least one of the bell (32) and the piercing member (31) is removably mounted on the base (33).

15. System (1) according to any one of the preceding claims comprising a generator (10) configured so as to produce said pressurized fluid, preferably steam (5), to supply the at least a projection member (310) with said pressurized fluid and in which the generator (10) comprises a reservoir and a boiler positioned remotely, the generator (10) being connected to the projection member (310) via a flexible conduit (100) so as to supply the projection member (310) with pressurized fluid.

16. System (1) according to any one of the preceding claims in which the bell (32) has an internal volume (320) of between 5L and 70 L.

17. System (1) according to any one of the preceding claims comprising a set of bells having different internal volumes.

18. Method for neutralizing a nest of vespids using the system (1) according to any one of the preceding claims comprising, at least a first phase comprising the following steps: • positioning the neutralization device (30) so as to house at least partially and preferably entirely the nest (2) in the internal volume (320) of the bell (32), and, while keeping the nest (2) at least partially housed in the internal volume (320) of the bell (32): • piercing of the nest (2) by the piercing member (31), • at least one injection of fluid, for example steam (5), into the nest (2) by the at least one projection member (310).

19. Method according to the preceding claim in which at least several injections of fluid, for example steam (5), are carried out in the nest (2) by the at least one projection member (310) during the at least one first phase.

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