Sublimator for providing treatments in hives
The portable sublimator allows upright operation with precise oxalic acid application to hives, addressing the inefficiencies and safety issues of existing machines by ensuring fast and safe treatment of Varroa mites in beehives.
Patent Information
- Application Number
- PCT/ES2025/070390
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2024-06-26
- Filing Date
- 2025-06-26
- Publication Date
- 2026-01-02
Smart Images

Figure ES2025070390_02012026_PF_FP_ABST
Abstract
Description
[0001] DESCRIPTION
[0002] Sublimator for beehive treatments
[0003] Object of the invention
[0004] The invention describes a sublimated product applicator for beehive treatments, specifically for applying sublimated oxalic acid inside beehives as an anti-mite treatment against the Varroa mite. This device has the advantageous feature of an innovative structural configuration that, in addition to allowing for controlled application of the product in single doses at a controlled temperature, is specially designed to protect the beekeeper. The sublimator of the invention is a portable, single-dose device, meaning that each hive receives the necessary dose of sublimation. This precise dose is achieved through application with a specially designed syringe and is constantly controlled by a temperature regulator, ensuring optimal sublimation.In turn, the device also takes care of the beekeeper, since the work is carried out continuously, at a speed that, compared to other similar devices, is much faster, and all this without having to be bending down in front of each hive, as happens with other sublimation machines, since it has an elongated structural support and directional handle designed to hold the device and use it in an upright position.
[0005] Field of application of the invention
[0006] The field of application of the present invention falls within the sector of the industry dedicated to the manufacture of apparatus, machines, and devices for beekeeping, as well as in the field of fumigation and gasification apparatus, focusing particularly on apparatus applicable for the sublimation of oxalic acids as an anti-Varroa treatment in beehives. Background of the invention
[0007] In fieldwork, and more specifically in work with beehives, the beekeeper seeks to carry out his work efficiently and respectfully of the environment, taking the utmost care of his animals, the bees, and the hives as a whole.
[0008] Until now, the work to treat the Varroa Destructor mite has been very slow, sometimes imprecise, and with the drawback that the beekeeper must go hive by hive, bending down in front of the entrance of each one to carry out this type of work.
[0009] The objective of the present invention is, therefore, the development of a sublimator that not only serves to protect bees against the Varroa mite more effectively, but is also more ergonomic and serves to take care of the beekeeper, so that he does not have to be bending down in front of each hive as happens with other sublimation machines.
[0010] It should be noted that, although other machines exist for sublimating beehives, they are not like the one proposed here and, in general, present several drawbacks. With these machines, the beekeeper must bend down in front of the hives to apply the sublimate, since the sublimated oxalic acid is not dispensed from the bottom, as is the case with the present invention. In other cases, existing machines use external tubes that connect to external accessories, complicating the work and maintenance. In this regard, it is also worth highlighting that the sublimation device of the present invention does not require any separate machine or accessory to operate; it only needs a source of electrical power.
[0011] The document closest to the invention, DE10028573, describes an electrically powered oxalic acid sublimator that applies oxalic acid to the beehive using a nozzle. The device does not contain any elongated structure. It has a handle in its central section. Consequently, the beekeeper must bend down to apply the oxalic acid to the beehive.
[0012] Explanation of the invention
[0013] The problem that the present invention solves is to improve the treatment of honeycombs, prevent the beekeeper from bending over, and avoid or reduce the inhalation of oxalic acid vapors.
[0014] The solution found by the inventors is a sublimator for beehive treatment that comprises:
[0015] • an elongated support,
[0016] • means for the sublimation of oxalic acid,
[0017] • means for temperature control,
[0018] • a connection to an electrical source,
[0019] • gripping means attached to the support,
[0020] • pressure dosing means,
[0021] • an outlet for sublimated oxalic acid suitable for introduction into the hive entrance, characterized in that the gripping means are located at the upper end of the support and the outlet for the sublimated material is located at the bottom of the device.
[0022] More specifically, the sublimator proposed by the invention, as previously mentioned, is a portable device that operates on electricity (220 V AC or 9V DC) whose objective is the sublimation of oxalic acid inside the hives to fight against a mite called Varroa that attacks bee colonies until their total destruction.
[0023] The sublimator is used with a pressure dispenser, in the form of a single-dose application using a syringe specifically designed for this purpose, which is capable of containing a certain amount of oxalic acid powder and introducing it into the sublimation machine through the top of a cup where there is a conical-type hole to house said syringe during sublimation.
[0024] This syringe is made primarily of aluminum parts and includes a piston and a central threaded stainless steel rod with various nuts that regulate its extension and compression capacity to sublimate a specific quantity of oxalic acid powder contained in the vessel. At the top of the syringe, there is a spring connected to a push button to facilitate dispensing the powder into the sublimation vessel at the appropriate time.
[0025] Ideally, the sublimation cup should have a lid with a syringe port. This lid is made of heat-resistant plastic and is attached to the cup with screws.
[0026] In any case, the vessel is completely metallic, preferably aluminum, and is preheated with a resistance that surrounds it externally, which is controlled at 180 degrees Celsius through temperature regulation means that include a thermostat, in order to carry out a correct sublimation of the oxalic acid powder that is introduced inside with the syringe mentioned above.
[0027] The vessel has a through-duct that defines a sublimate outlet channel that runs through the vessel wall between an internal orifice, at an internal inlet end, located on the side wall of the chamber or inner cavity of the vessel and an external orifice, at an external outlet end, located on the outside of the vessel surface at a point lower than the position of the internal orifice of the inlet end.
[0028] This method of conducting the sublimation vapor through the heated wall of the vessel itself represents a significant innovation, as it eliminates the need for curved tubing and allows the sublimation vapor temperature to be maintained at the bottom of the vessel without heat loss or crystallization of the product. Furthermore, a straight stainless steel tube has been incorporated into the external outlet of the conduit at the bottom of the aluminum vessel. Through this tube, and using the pressure generated within the vessel, the total amount of oxalic acid powder placed in the dosing syringe is expelled and introduced into the hive.
[0029] Furthermore, it's important to note that the aluminum cup is first surrounded by a temperature-controlled heating element, regulated by a thermostat, which allows it to reach the optimal temperature for successful sublimation. This element is then covered by several layers of insulation and a final aluminum sheet that seals the entire assembly and provides protection. Ideally, the entire assembly is sealed with heat-resistant silicone on the top to prevent sudden temperature changes.
[0030] Continuing with the particularities of the device, it is worth noting that the set of cup, syringe cap and insulation along with protections, are mounted on a stainless steel base that at one end is joined to the lower end of an elongated structural support whose opposite upper end incorporates an orientable handle to be able to handle the device standing up, without having to bend down and holding it in the position that best suits each case.
[0031] Ideally, the aforementioned base is a molded plate that features a small tab located in conjunction with the position of the stainless steel tube that expels the sublimation, to ensure the durability of said tube.
[0032] The structural support is a hollow, square stainless steel profile that serves as both a cable pass-through and the backbone of the sublimator. In its central section, it features a flat support for mounting a temperature control panel or box, which houses the thermostat and other control elements. At its upper end, a nut holds a screw that secures the adjustable support for the directional handle. Ideally, the control panel support is a rectangular stainless steel plate that houses the transparent, waterproof plastic box containing the device's control elements: the thermostat or temperature regulators, operating instructions, and a small wrench for adjusting the screws on the plastic lid of the sublimation cup.
[0033] And, preferably, the handle is composed of a plate molded in the shape of a "II" terminated in a cylindrical plastic bar joining the upper ends of said "II".
[0034] The following describes the method of use and operation of the sublimator that is the subject of the invention in a practical case, for example, in an apiary of 100 hives, with an infestation by the Varroa mite that reduces the population of bees in the hives until their disappearance, for which the veterinary services recommend and prescribe a prescription of a pharmaceutical product to fight against Varroa inside the hives; product whose main active matter is oxalic acid for sublimation.
[0035] The user must position themselves in the apiary with the sublimator, suitably equipped with the necessary PPE (Personal Protective Equipment) for its use, start the power generator that supplies electricity to the device; connect the invention to the electricity, and wait 5 minutes for the cup to reach the working temperature controlled by the programmable thermostat, and then proceed to use the device.
[0036] To do this, the user will stand in front of the hive where the bees exit the hive entrance (the door where the bees leave the hive), having a bucket on top of the hive lid containing the material prescribed by the veterinary services (oxalic acid), holding the device by the handle with the left hand and resting it on the bottom part on top of the hive lid where the bucket is also located.
[0037] The device measures approximately 800 mm in length and is lightweight as it rests on its base. The syringe is removed from its housing, and the first sublimation can be performed in the hive on which it is resting. The syringe is inserted into the bucket, filling it completely with oxalic acid. No more will fit than the amount preset in the syringe's adjustment mechanism. Once filled, the syringe is returned to its housing in the opening of the sublimation vessel's lid.
[0038] Next, using the palm of your hand, press the syringe's emptying system so that all the acid inside flows by gravity into the sublimation vessel. Quickly lower the device until the product outlet tube is facing the hive entrance. A small amount of steam will escape from the outlet tube, indicating that sublimation is taking place inside the sublimator vessel. Without stopping, insert the outlet tube into the hive through the entrance and allow the sublimator to operate for approximately 8 seconds.
[0039] After this time, the tube should be removed from the hive and the device lifted to carry it to the lid of the next hive.
[0040] Again, the syringe is taken with the right hand and inserted into the oxalic acid bucket. Then, the same operation as before is repeated: the syringe is loaded, inserted into its housing in the lid of the cup, the syringe is pressed to discharge the powder contents into the sublimation cup, the device is lowered to the hive entrance to insert the sublimation outlet tube, and a dose of oxalic acid is applied to the new hive.
[0041] This procedure is repeated with all the hives in the apiary, without having to bend down or stop the work at any time until all the hives have had the oxalic acid application carried out in the apiary in an effective, fast way and without having to bend down in each hive.
[0042] Description of the drawings
[0043] To complement the description being made and in order to help a better understanding of the characteristics of the invention, this descriptive document is accompanied, as an integral part thereof, by a set of drawings in which the following has been represented for illustrative and non-limiting purposes:
[0044] Figure 1 shows a schematic perspective view of an example of the product sublimator for beehive treatments that is the subject of the invention, showing its general configuration and main parts that it comprises, as well as their arrangement.
[0045] Figure number 2.- Shows a schematic exploded view of the example of the sublimator according to the invention shown in figure 1, showing the configuration of each of its parts.
[0046] Figure number 3 shows a perspective view of an example of the sublimating vessel comprising the apparatus of the invention, represented independently, showing its external configuration.
[0047] Figures 4, 5 and 6.- Show respective bottom plan views, front elevation and longitudinal section of the vessel shown in figure 3, showing the threaded perforations it has and the conduit for the passage of the product that passes through it.
[0048] Figure number 7 shows again a perspective view of the sublimation vessel, in this case including the product outlet tube.
[0049] Figures number 8 and 9.- Show two views, in perspective and section, of the lid that closes the top of the cup, showing its configuration and parts, in particular the conical hole it has for the insertion of the syringe.
[0050] And figures number 10, 11 and 12.- Show respective perspective views, side elevation and longitudinal section of an example of the syringe comprising the sublimator of the invention, showing the parts and elements it comprises, as well as their configuration and arrangement.
[0051] Preferred embodiment of the invention
[0052] The references for the figures are: 100- sublimator
[0053] 1 - glass (sublimator)
[0054] 1.1 - duct (product outlet)
[0055] 2 - sublimation chamber
[0056] 3 - side threaded hole (for side adjusting screw)
[0057] 4 - upper threaded holes (for securing the lid)
[0058] 5 - upper threaded hole (for upper adjusting screw)
[0059] 6 - external orifice (outer end of the product outlet conduit)
[0060] 7 - lower threaded holes (for securing the cup to the lower base)
[0061] 8 - internal orifice (inner end of the product outlet conduit)
[0062] 9 - tube (product outlet)
[0063] 10- Lateral surface (of the sublimating vessel)
[0064] 11- syringe
[0065] 11.a- lower part (of the conical syringe)
[0066] 11.1 - Discharge stop nuts (of the syringe)
[0067] 11.2 - axis (of the syringe guide)
[0068] 11.3 - rubber (inner sealing of the syringe)
[0069] 11.4 - Load stop nuts (of the syringe)
[0070] 11.5 - piston (of the syringe)
[0071] 11.6 - body (of the syringe) 11.7 - spring (of the syringe)
[0072] 11.8 - head (of the syringe shaft that acts as a push button)
[0073] 12. lid (of the glass)
[0074] 12.1 - through holes (for fixing the lid to the cup) 12.2 - conical hole (in the lid for inserting the syringe)
[0075] 12.3 - lower protrusion (fitting into the vessel chamber)
[0076] 13.- structural support
[0077] 13.a- lower end (of the structural support)
[0078] 13.b - upper end (of the structural support) 13.6 - insulating coating (surrounding the vessel's strength)
[0079] 13.7 - protective plate (surrounding the insulating coating of the vessel)
[0080] 13.8 - base (lower support of the vessel)
[0081] 14.- control box
[0082] 14.1 - rectangular flat support plate (for fixing the control box) 15- thermostat
[0083] 16- cable
[0084] 17- handhold
[0085] 17.1 - U-shaped plate (for fixing the handle)
[0086] 17.2 - adjustable screw (for fixing the handle plate). Thus, as can be seen in Figure 1, the sublimator (100) of the invention consists of a portable electrically operated device used by a user in an upright position, comprising essentially the following elements:
[0087] - an elongated structural support (13), which acts as a supporting spine to which the rest of the elements of the sublimator are attached;
[0088] - a metallic sublimating vessel (1), preferably made of aluminum, heated by means of a resistance attached externally to it (not shown in the figures), which is installed at the lower end (13a) of the structural support (13) and has a tube (9) that emerges from its front part for its introduction into the hive entrance, said tube (9) being inserted into an external outlet (6) of a conduit (1.1) that passes through the wall of the vessel (1) to an internal inlet (8) that communicates with a central chamber (2) where the product to be sublimated is inserted;
[0089] - a pressure-dispensing syringe (11) for the product, which is removable and insertable into the internal chamber (2) of the vessel (1) from the top of the vessel (1) through a lid (12) that closes the upper part of said vessel (1), so that, once the syringe (11) is inserted, it seals said chamber (2) during the sublimation of the product;
[0090] - a control box (14) with temperature regulation means for the heating element attached to the vessel (1) and connected via a cable (16) with a plug for connection to the 220v electrical network; and
[0091] - an adjustable handle (17) located at the upper end (13b) of the structural support (13).
[0092] In a preferred embodiment, the sublimating vessel (1) is a solid aluminum piece of cylindrical configuration having a central chamber (2) open at its top. Said vessel (1), as shown in Figures 3 to 7, has the central chamber (2) with the internal orifice (8) which, through the through-channel product outlet conduit (1.1), communicates with the external orifice (6) where the tube (9) is attached, said external orifice (6) being located in a position lower than the position of the internal orifice (8) such that the conduit (1.1) runs, at least in part, vertically through the wall of the vessel (1).
[0093] Furthermore, the vessel (1) has a threaded top hole (5) and a threaded side hole (3) that open to the aforementioned product outlet conduit (1, 1) which passes through the vessel wall (1) from the chamber (2) to the stainless steel tube (9). Both holes (3, 5) are intended for the insertion of respective adjusting screws (not shown in the figures) with which the product outlet can be regulated. Thanks to the size, design, and arrangement of this set of holes and outlet conduit, sublimation can occur continuously, and the resulting gases circulate without cooling inside the vessel (1) before exiting through the external outlet tube (9).
[0094] Preferably, the vessel (1) also comprises two upper threaded perforations (4) centered on both sides of the side wall of the chamber (2), for the insertion of screws that hold the lid (12) into which the syringe (11) is inserted and which closes the upper part of said sublimation chamber (2) of the vessel (1).
[0095] Preferably, the cup (1) also comprises two lower threaded perforations (7) to secure it by screwing it to a lower support base (13.8) provided at the lower end of the structural support (13).
[0096] Preferably, the cup (1), which as noted incorporates an attached resistance surrounding its lateral surface (10) to heat it to the sublimation temperature, has an insulating coating (13.6) which includes a lateral support for connecting the resistance to the thermostat, and over said coating a protective plate (13.7) that covers and seals the assembly of the insulation and the resistance surrounding the cup (1).
[0097] In turn, referring to Figures 8 and 9, it can be seen how, in the preferred embodiment of the invention, the lid (12) is a solid piece of thermal plastic material, circular in shape with a diameter corresponding to the diameter of the vessel (1), which has a lower protrusion (12.3) that defines a projection which, as a seat, fits snugly into the cavity of the chamber (2) of the vessel (1), with a conical cavity (12.2) in its center suitable for housing the syringe (11). In addition, the lid (12) has two through holes (12.1) for the insertion of screws to fix it to the sublimating vessel (1).
[0098] For its part, the syringe (11) is intended to perform two important functions: the first is to seal the sublimation chamber (2) of the vessel (1) thanks to the conical part it has at the lower end of its body (11.6), which coincides in turn with the conical hollow (12.2) of the lid (12) of the sublimation vessel (1); and the second is to dispense the appropriate amount of product, that is, oxalic acid, that is to be supplied in each sublimation.
[0099] For this purpose, the syringe (11), as shown in Figures 10 to 12, comprises a cylindrical aluminum body (11.6), the lower part (11a) of which is conical, fitting into the conical recess (12.2) of the cap (12). The cap has a flat piston (11.5) attached to a guide shaft (11.2) forming a single welded piece that runs through it. This shaft (11.2) is a threaded rod which incorporates, on its lower side, such that they are located in the inner recess of the syringe body (11.6), two loading stop nuts (11.4), i.e., with the piston compressed, situated next to a sealing rubber (11.3) for gas retention during sublimation, and on the upper side, two discharge stop nuts (11.1), i.e., with the extended piston, in addition to a spring (11.7) between said nuts (11.1) and a head (11.8) that acts as a push button, such that it ensures pressure in the assembly for its optimal operation.The syringe (11), due to its construction, ensures that it does not become clogged during sublimation and, being mostly made of aluminum, its weight is reduced for better handling.
[0100] Furthermore, preferably, the control box (14) where the temperature regulation means of the resistance attached to the vessel (1) are housed, which include a thermostat (15), is a waterproof and transparent box that is fixed in the intermediate area of the structural support (13) by means of a rectangular flat support plate (14.1) made of stainless steel.
[0101] And, as shown in Figure 2, preferably the structural support (13), which forms the backbone of the sublimator (100) to which the other elements are attached, is made of a hollow metal profile, preferably with a square cross-section, through which the power cables (16) for the temperature control elements of the control box (14) and the heating element of the vessel (1) pass. Furthermore, preferably, this support profile (13) has a length (L) of approximately 810 mm, allowing the user to adopt a fully upright working posture.
[0102] As for the adjustable handle (17), preferably it consists of a cylindrical bar of plastic material that is joined at its respective ends to the upper ends of a stainless steel “II” plate (17.1) which, in turn, is fixed at its lower part to the upper end of the structural support (13) by means of an adjustable screw (17.2) also of stainless steel, allowing the position of the handle (17) to be oriented as desired.
[0103] Finally, it should be noted that the base (13.8) for supporting the cup (1) provided at the lower end of the structural support (13) is a stainless steel piece molded with a lateral fold which, at one end, is joined by welding to the profile of the structural support (13) and at the other end has a flange that coincides with the product outlet tube (9), serving to ensure its durability, said base (13.8) having respective holes for securing the sublimating cup (1) by screwing.
[0104] In a preferred, though not limiting, embodiment, the cylindrical aluminum piece that constitutes the sublimation vessel (1) has approximate dimensions of 75 mm high (h) x 70 mm in diameter (D). The sublimation chamber (2), centered on the top of this cylinder, is 35 mm deep (p) x 40 mm wide (a), with a 15 mm thick cylinder wall (e) and a solid block at the bottom. The upper threaded hole (5) opens into the product outlet conduit (1.1) with a depth of 70 mm and an inner diameter of 6.75 mm, while the external outlet hole (6) has a diameter of 8 mm. For their part, the upper threaded holes (4) for fixing the lid (12) are metric 6 thread and the lower threaded holes (7) for fixing the cup (1) to the support base (13.8) are metric 8 thread.
[0105] In the preferred embodiment, the lid (12) has a diameter (D) of 70 mm and its lower projection (12.3) has a circumference 10 mm thick (g) x 40 mm wide (a). Furthermore, the conical recess (12.2) in its center has an outward opening at an angle of 45 degrees (a), and the through holes (12.1) for screw attachment to the cup (1) are 7 mm in diameter.
[0106] Furthermore, in the preferred embodiment, the body (11.6) of the syringe (11) is a solid aluminum cylinder 25 mm in diameter (d) x 115 mm long (I), the lower part of which is conical, with the circumference ending at a measurement of 21.5 mm. Its upper part has a centered projection of 11 mm, perforated in the center to a depth of 20 mm.
[0107] Furthermore, in said embodiment, the structural support (13) is a 30 x 30 mm square profile, and the handle (17) is a polypropylene bar 125 mm long by 25 mm in diameter.
[0108] Finally, it should be noted that the sublimator (100) will be manufactured using stainless steel, aluminum, plastic, flexible rubber, insulating materials, copper, and zinc-plated steel.
[0109] Some joints will be made by welding and others by screws and rivets.
Claims
CLAIMS 1. Sublimator for the treatment of beehives comprising: • an elongated support (13), • means for the sublimation of oxalic acid, • means for temperature control, • a connection to an electrical source, • gripping means attached to the support, • pressure dosing means, • an outlet for sublimated oxalic acid suitable for introduction into the hive entrance, characterized in that the gripping means (17) are located at the upper end of the support (13 b) and the outlet for the sublimated material is located at the bottom.
2. Sublimator according to claim 1 comprising: - an elongated structural support (13), which acts as a supporting spine to which the rest of the elements of the sublimator are attached; - a metallic sublimating vessel (1), heated by means of a resistance attached externally to it, which is installed at the lower end (13a) of the structural support (13) and has a tube (9) that emerges from its front part for the introduction of it into the hive entrance, said tube (9) being inserted into an external outlet hole (6) of a conduit (1 1) that passes through the wall of the vessel (1) to an internal inlet hole (8) that communicates with a central chamber (2) where the product to be sublimated is inserted; - a product dosing syringe (11), removablely inserted into the chamber (2) of the vessel (1) from the top of the vessel through a lid (12) that closes the upper part of said vessel (1), so that, once the syringe (11) is inserted, it seals said chamber (2) during the sublimation of the product; - a control box (14) with temperature regulation means for the resistance attached to the vessel (1) and connected via a cable (16) with a connection plug to the power source; - an adjustable handle (17), at the upper end (13b) of the structural support (13).
3. Product sublimator, according to the preceding claims, characterized in that the sublimating vessel (1) is a solid piece of aluminum of cylindrical configuration having the central chamber (2) open at its top, where the through-channel (1.1) for product outlet between the internal orifice (8) and the external orifice (6) runs, at least in one section, vertically through the wall of the vessel (1).
4. Product sublimator, according to claim 3, characterized in that the cup (1) has a top scratched hole (5) and a side threaded hole (3) that open up to the product outlet conduit (1.1) that passes through the wall of the cup (1), both holes (3, 5) being intended for the insertion of respective product outlet regulating screws.
5. Product sublimator, according to claim 3 or 4, characterized in that the cup (1) comprises two upper threaded perforations (4) centered on both sides of the side wall of the chamber (2), for the insertion of screws that hold the lid (12) into which the syringe (11) is inserted and which closes the upper part of said sublimation chamber (2) of the cup (1).
6. Product sublimator for treatments in beehives, according to any of claims 3 - 5 characterized in that the vessel (1) comprises two lower threaded perforations (7) for securing it by screwing it to a base (13.8) of lower support provided at the lower end of the structural support (13).
7. Product sublimator, according to any of the preceding claims, characterized in that the cup (1), which incorporates an attached resistance surrounding the surface (10) thereof to heat it to the sublimation temperature, has an insulating coating (13.6) and on said coating a protective plate (13.7) which covers and seals the assembly of the insulation and the resistance surrounding the cup (1).
8. Product sublimator, according to any of claims 3-7, characterized in that the lid (12) is a solid piece of thermal plastic material, circular in configuration with a diameter according to the diameter of the cup (1), which has a lower protrusion (12.3) that defines a projection that fits tightly with the cavity of the chamber (2) of the cup (1), there being in its center a conical cavity (12.2) suitable for housing the syringe (11).
9. Product sublimator, according to claim 8, characterized in that the syringe (11) comprises a cylindrical aluminum body (11.6), the lower part (11a) of which is conical in shape, which fits into the conical recess (12.2) of the lid (12).
10. Product sublimator, according to claim 9, characterized in that the body (11.6) of the syringe (11) has a flat piston (11.5) attached to a guide shaft (11.2) forming a single welded piece that runs through it, wherein said shaft (11.2) is a threaded rod which incorporates, on a lower side thereof, two loading cap nuts (11.4), together with a sealing range (11.3) for gas retention during sublimation, and on the upper side, two discharge stop nuts (11.1), in addition to a spring (11.7) and a head (11.8) that acts as a push button.
11. Product sublimator, according to any of the preceding claims, characterized in that the control box (14) housing the temperature regulation means of the heating element attached to the cup (1), which includes a thermostat (15), is a waterproof and transparent box that is fixed in the intermediate area of the structural support (13) through a flat support plate (14. 1) made of stainless steel.
12. A product sublimator, according to any of the preceding claims, characterized in that the structural support (13) is a hollow metal profile through which pass the power cables (16) for the temperature control elements of the control box (14) and the heating element of the vessel (1), which has a length (L) of approximately 810 mm, allowing the user to adopt a fully upright working posture.
13. A product sublimator for treatments in beehives, according to any of the preceding claims, characterized in that the adjustable handle (17) is a cylindrical bar of plastic material that is joined at its respective ends to the upper ends of a stainless steel "II" shaped plate (17.1), which, in turn, is fixed on its inner side to the upper end of the structural support (13) by means of an adjustable screw (17.2).
Citation Information
Patent Citations
Method and device for controlling bee and hive pests
DE10028573A1
GAS FUMIGATOR
RU205360U1
Beehive treatment systems
US10757921B1