WO1997039621A1 - Mobile autonomous apparatus generating and spraying into the ground a mixture of toxic gases to destroy and chase noxious burrowing animals in their runs or burrows - Google Patents

Mobile autonomous apparatus generating and spraying into the ground a mixture of toxic gases to destroy and chase noxious burrowing animals in their runs or burrows Download PDF

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Publication number
WO1997039621A1
WO1997039621A1 PCT/FR1996/000638 FR9600638W WO9739621A1 WO 1997039621 A1 WO1997039621 A1 WO 1997039621A1 FR 9600638 W FR9600638 W FR 9600638W WO 9739621 A1 WO9739621 A1 WO 9739621A1
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WO
WIPO (PCT)
Prior art keywords
gas
turbine
burrows
mixing tank
toxic
Prior art date
Application number
PCT/FR1996/000638
Other languages
French (fr)
Inventor
Philippe Demaille
Roger Demaille
Pierre Vergnier
Original Assignee
Serbic S.A.R.L.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Serbic S.A.R.L. filed Critical Serbic S.A.R.L.
Priority to PCT/FR1996/000638 priority Critical patent/WO1997039621A1/en
Publication of WO1997039621A1 publication Critical patent/WO1997039621A1/en

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Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
    • A01M13/00—Fumigators; Apparatus for distributing gases
    • A01M13/006—Fumigators specially adapted for destruction of rats or similar animals in holes
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
    • A01M17/00—Apparatus for the destruction of vermin in soil or in foodstuffs
    • A01M17/002—Injection of toxic gases or fluids into the soil
    • A01M17/004—Apparatus for gassing rats or similar animals in holes

Definitions

  • Burrowing animals by their presence and their way of life, pose more and more problems for people using the surfaces where they are deployed to find their food, their lodging, their place of reproduction.
  • the animals concerned moles, brown rats, rats, rodents and other burrowing animals.
  • the present invention remedies these drawbacks by using the action of a turbine to propel and distribute in the galleries or burrows, and over a very large surface, a toxic, heavy, low volatile gas, without risking contaminating the treated animals or surrounding.
  • the invention is a mobile and autonomous device, generator, propellant and earth distributor, of a mixture of toxic gases with a view to destroying or repelling burrowing noxious animals in their galleries or burrows.
  • This invention allows, indifferently, the use of liquid, solid or gaseous products, to obtain the desired treatment gas.
  • the device consists of a motor actuating a turbine which can be placed in communication with a burner producing heavy toxic gas.
  • this heavy toxic gas flow is conveyed from the turbine to a mixing tank by a nozzle on which it is possible to connect on the one hand, a pipe connected to a gas bottle, on the other hand, a tube recovering the combustion gases from the engine.
  • the special feature of the mixer consists of a tank where the flow of gas propelled by the turbine is brought by an inlet pipe immersed in a volatile liquid, previously poured into the tank, and allowing the bubbling and over-escalation of the gas flow.
  • the heavy toxic gas is conveyed under pressure by several flexible tubes in the galleries or burrows created by the pests to be destroyed.
  • Figure 1 is a perspective which shows the entire apparatus consisting of an electric or combustion engine (2) driving a turbine (1) which sucks the gases from the burner (7) (see f ⁇ g.4).
  • the gases sucked in by the turbine (1) are propelled into the nozzle (3) connected to the mixing tank (4).
  • the exhaust gases will be recovered (9) and injected into the nozzle (3) (see fig. 6).
  • Compressed gases from the bottle (8) can also be injected into the nozzle (3).
  • the gas flow thus obtained will be directed by the nozzle (3) in the mixing tank (4) (see fig. 3), where a volatile liquid has been previously poured, bubbling will take place (see fig. 3).
  • the new gas flow thus obtained will be directed under pressure into the conduits (5) provided with injectors (6) (see fig. 5) thus carrying out the treatment in the selected galleries or burrows.
  • the assembly is mounted on a support (10) itself fixed in a structure (11) provided with wheels (19) which make the device mobile and autonomous.
  • Figure 2 is an operating diagram showing the path and enrichment of gas flows in the device and their pressurization by the turbine.
  • the actions of the burner (7), the bottle (8), and the mixing tank (4), can, depending on the desired treatment, be used separately or added up.
  • Figure 3 is an axonometry of the mixing tank (4) and its bubbling system connected to the nozzle (3). This bubbling takes place in a volatile liquid allowing a gas exchange.
  • the mixing tank (4) is provided with a filling cap (18).
  • Figure 4 shows the burner (7) in axonometry. It is a drawer composed, in the lower part, of a combustion chamber, where the composition to be burned, which is previously lit, is arranged, and in the upper part, an adjustable opening allowing the entry of the side air open to the outside and a square outlet at the other end. This square outlet is received in a cylinder (15) leading to the suction hole of the turbine (1).
  • the combination of the square section inscribed in a cylindrical section ensures by the free peripheral spaces thus created, an air passage for regulating the draft and cooling the burner (7).
  • FIG. 5 is an axonometry representing the injector (6) composed of a spout (17) fitted into the duct (5) and a cone movable along the duct (5), making it possible to seal on the gallery to be treated.
  • a valve fixed upstream on the conduit (5) allows the gas to be cut off.
  • FIG. 6 is an axonometry representing the recuperator (9) of the burnt gases at the outlet of the internal combustion engine (2) and reinjected into the nozzle (3). This principle makes it possible to enrich the treatment gases and to eliminate, for the user, the emission of exhaust gases.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Pest Control & Pesticides (AREA)
  • Wood Science & Technology (AREA)
  • Engineering & Computer Science (AREA)
  • Insects & Arthropods (AREA)
  • Soil Sciences (AREA)
  • Zoology (AREA)
  • Environmental Sciences (AREA)
  • Food Science & Technology (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Catching Or Destruction (AREA)

Abstract

A mobile autonomous apparatus generating, propelling and spraying into the ground a mixture of toxic gases to destroy or chase noxious burrowing animals, such as moles, brown rats, coypus in their runs or burrows, is characterised by the use of a turbine (1) driven by an engine (2), sucking and propelling a gas flow constituted by a first supply of gas generated by a combustor (7) for diffusible substances, after ignition, located upstream of the turbine (1), then carried by a joining piece (3) into a mixing vessel (4) after recuperating in the case of an internal combustion engine, the exhaust gas (9) and the supplementary supply of gas stored in a cylinder (8). A plug (18) allows the addition of liquid and volatile toxic products into the mixing vessel (4) where mixing is effected. The contents of the burner (7), of the gas cylinder (8) and of the mixing vessel (4) can be used separately or jointly according to the treatment required. The gas flow coming from the mixing vessel (4) is carried in pipes (5) provided with a mobile cone (16) into the runs or burrous. The whole apparatus is attached by fasteners (13) on a frame (10) located in a structure (11) equipped with wheels (19), a pipe-holder (14) and a speed accelerator (12), the whole machine is self-propelled.

Description

Appareil mobile et autonome, générateur et répartiteur en terre, d'un mélange de gaz toxiques en vue de détruire ou de repousser les animaux nuisibles fouisseurs dans leurs galeries ou terriers. Mobile and autonomous device, generator and earth distributor, of a mixture of toxic gases in order to destroy or repel burrowing pests in their galleries or burrows.
Les animaux fouisseurs, de par leur présence et leur mode de vie, posent de plus en plus de problèmes aux personnes utilisant les surfaces où ils se déploient pour trouver leur pitance, leur gîte, leur lieu de reproduction.Burrowing animals, by their presence and their way of life, pose more and more problems for people using the surfaces where they are deployed to find their food, their lodging, their place of reproduction.
Ces animaux deviennent nuisibles à partir du moment où ils contrarient l'exploitation des lieux, en creusant des galeries, des terriers, en rejetant en surface les excédents de terre.These animals become harmful from the moment they thwart the exploitation of the premises, by digging galleries, burrows, by rejecting on the surface the surplus of earth.
Les lieux exploités: les jardins, les potagers, les pelouses mais également les golfs, les terrains d'aviation, les autoroutes, les digues, etc..The places used: gardens, vegetable gardens, lawns but also golf courses, airfields, highways, dikes, etc.
Les animaux concernés: les taupes, les surmulots, les rats, les rongeurs et autres animaux fouisseurs.The animals concerned: moles, brown rats, rats, rodents and other burrowing animals.
Les procédés utilisés à ce jour sont difficiles d'emploi, onéreux et peu actifs, d'autres sont dangereux pour l'utilisateur ou pour la faune à protéger.The processes used to date are difficult to use, expensive and not very active, others are dangerous for the user or for the fauna to be protected.
La présente invention remédie à ces inconvénients en utilisant l'action d'une turbine pour propulser et répartir dans les galeries ou terriers, et sur une surface très importante, un gaz toxique, lourd, peu volatil, sans risquer de contaminer les animaux traités ou environnants.The present invention remedies these drawbacks by using the action of a turbine to propel and distribute in the galleries or burrows, and over a very large surface, a toxic, heavy, low volatile gas, without risking contaminating the treated animals or surrounding.
L'invention est un appareil mobile et autonome, générateur, propulseur et répartiteur en terre, d'un mélange de gaz toxiques en vue de détruire ou de repousser les animaux nuisibles fouisseurs dans leurs galeries ou terriers.The invention is a mobile and autonomous device, generator, propellant and earth distributor, of a mixture of toxic gases with a view to destroying or repelling burrowing noxious animals in their galleries or burrows.
Cette invention permet, indifféremment, l'utilisation de produits liquides, solides ou gazeux, pour obtenir le gaz de traitement souhaité.This invention allows, indifferently, the use of liquid, solid or gaseous products, to obtain the desired treatment gas.
Conformément à l'invention, l'appareil est constitué par un moteur actionnant une turbine qui peut être mise en communication avec un brûleur producteur de gaz toxique lourd.According to the invention, the device consists of a motor actuating a turbine which can be placed in communication with a burner producing heavy toxic gas.
Autre caractéristique de l'invention, ce flux gazeux toxique lourd est acheminé de la turbine à un réservoir mélangeur par un embout sur lequel il est possible de brancher d'une part, un tuyau raccordé à une bouteille de gaz, d'autre part, un tube récupérant les gaz de combustion du moteur.Another characteristic of the invention, this heavy toxic gas flow is conveyed from the turbine to a mixing tank by a nozzle on which it is possible to connect on the one hand, a pipe connected to a gas bottle, on the other hand, a tube recovering the combustion gases from the engine.
La particularité du mélangeur consiste en un réservoir où le flux de gaz propulsé par la turbine est amené par un tuyau d'arrivée plongeant dans un liquide volatil, préalablement versé dans le réservoir, et permettant le barbotage et le surenchérissement du flux gazeux.The special feature of the mixer consists of a tank where the flow of gas propelled by the turbine is brought by an inlet pipe immersed in a volatile liquid, previously poured into the tank, and allowing the bubbling and over-escalation of the gas flow.
En sortie du réservoir mélangeur, le gaz toxique lourd est acheminé sous pression par plusieurs tubes souples dans les galeries ou terriers créés par les nuisibles à détruire.At the outlet of the mixing tank, the heavy toxic gas is conveyed under pressure by several flexible tubes in the galleries or burrows created by the pests to be destroyed.
Une forme de réalisation de l'objet de l'invention est représentée à titre d'exemple, non limitative aux dessins de détail annexés.An embodiment of the object of the invention is shown by way of example, without limitation to the attached detailed drawings.
La figure 1 est une perspective qui représente l'ensemble de l'appareil constitué par un moteur (2) électrique ou à combustion entraînant une turbine (1) qui aspire les gaz provenant du brûleur (7) (voir fιg.4). Les gaz aspirés par la turbine (1) sont propulsés dans l'embout (3) relié au réservoir mélangeur (4). Dans le cas d'un moteur (2) à combustion, les gaz d'échappement seront récupérés (9) et injectés dans l'embout (3) (voir fig.6). Les gaz comprimés provenant de la bouteille (8) pourront également être injectés dans l'embout (3). Le flux gazeux ainsi obtenu sera dirigé par l'embout (3) dans le réservoir mélangeur (4) (voir fig. 3), où un liquide volatil aura été préalablement versé, un barbotage s'effectuera (voir fig.3). Le nouveau flux gazeux ainsi obtenu sera dirigé sous pression dans les conduits (5) munis d'injecteurs (6) (voir fig.5) menant ainsi le traitement aux galeries ou terriers choisis. L'ensemble est monté sur un support (10) lui-même fixé dans une structure (11) munie de roues (19) qui rendent l'appareil mobile et autonome.Figure 1 is a perspective which shows the entire apparatus consisting of an electric or combustion engine (2) driving a turbine (1) which sucks the gases from the burner (7) (see fιg.4). The gases sucked in by the turbine (1) are propelled into the nozzle (3) connected to the mixing tank (4). In the case of a combustion engine (2), the exhaust gases will be recovered (9) and injected into the nozzle (3) (see fig. 6). Compressed gases from the bottle (8) can also be injected into the nozzle (3). The gas flow thus obtained will be directed by the nozzle (3) in the mixing tank (4) (see fig. 3), where a volatile liquid has been previously poured, bubbling will take place (see fig. 3). The new gas flow thus obtained will be directed under pressure into the conduits (5) provided with injectors (6) (see fig. 5) thus carrying out the treatment in the selected galleries or burrows. The assembly is mounted on a support (10) itself fixed in a structure (11) provided with wheels (19) which make the device mobile and autonomous.
La figure 2 est un schéma de fonctionnement représentant le cheminement et l'enrichissement des flux gazeux dans l'appareil et leur mise sous pression par la turbine. Les actions du brûleur (7), de la bouteille (8), et du réservoir mélangeur (4), peuvent suivant le traitement désiré s'employer séparément ou s'additionner.Figure 2 is an operating diagram showing the path and enrichment of gas flows in the device and their pressurization by the turbine. The actions of the burner (7), the bottle (8), and the mixing tank (4), can, depending on the desired treatment, be used separately or added up.
La figure 3 est une axonométrie du réservoir mélangeur (4) et de son système de barbotage relié à l'embout (3). Ce barbotage s'effectue dans un liquide volatil permettant un échange gazeux. Le réservoir mélangeur (4) est doté d'un bouchon de remplissage (18).Figure 3 is an axonometry of the mixing tank (4) and its bubbling system connected to the nozzle (3). This bubbling takes place in a volatile liquid allowing a gas exchange. The mixing tank (4) is provided with a filling cap (18).
La figure 4 représente le brûleur (7) en axonométrie. Il s'agit d'un tiroir composé, en partie basse, d'une chambre de combustion, où est disposée la composition à brûler, allumée au préalable, et en partie haute, d'une ouverture réglable permettant l'entrée de l'air du coté ouvert sur l'extérieur et d'une sortie carrée à l'autre extrémité. Cette sortie carrée est reçue dans un cylindre (15) menant au trou d'aspiration de la turbine (1). La combinaison de la section carrée inscrite dans une section cylindrique, assure par les espaces périphériques libres ainsi créés, un passage d'air pour la régulation du tirage et le refroidissement du brûleur (7).Figure 4 shows the burner (7) in axonometry. It is a drawer composed, in the lower part, of a combustion chamber, where the composition to be burned, which is previously lit, is arranged, and in the upper part, an adjustable opening allowing the entry of the side air open to the outside and a square outlet at the other end. This square outlet is received in a cylinder (15) leading to the suction hole of the turbine (1). The combination of the square section inscribed in a cylindrical section, ensures by the free peripheral spaces thus created, an air passage for regulating the draft and cooling the burner (7).
La figure 5 est une axonométrie représentant l'injecteur (6) composé d'un bec (17) emboîté dans le conduit (5) et d'un cône mobile le long du conduit (5), permettant d'assurer l'étanchéité sur la galerie à traiter. Un robinet fixé en amont sur le conduit (5) permet la coupure des gaz.FIG. 5 is an axonometry representing the injector (6) composed of a spout (17) fitted into the duct (5) and a cone movable along the duct (5), making it possible to seal on the gallery to be treated. A valve fixed upstream on the conduit (5) allows the gas to be cut off.
La figure 6 est une axonométrie représentant le récupérateur (9) des gaz brûlés en sortie du moteur (2) à explosion et réinjectés dans l'embout (3). Ce principe permet d'enrichir les gaz de traitement et de supprimer, pour l'utilisateur, l'émanation de gaz d'échappement FIG. 6 is an axonometry representing the recuperator (9) of the burnt gases at the outlet of the internal combustion engine (2) and reinjected into the nozzle (3). This principle makes it possible to enrich the treatment gases and to eliminate, for the user, the emission of exhaust gases.

Claims

REVENDICATIONS
1- Appareil mobile et autonome, générateur, propulseur et répartiteur en terre, d'un mélange de gaz toxiques en vue de détruire ou de repousser les animaux nuisibles fouisseurs dans leurs galeries ou terriers, tels que taupes, surmulots, ragondins, caractérisé par une turbine (1), entraînée par un moteur (2), aspirant et propulsant un flux gazeux constitué par un premier apport de gaz produit par un brûleur (7) de matières à diffuser après allumage situé en amont de la turbine (1) puis conduit par un embout (3) dans un réservoir mélangeur (4) après avoir récupéré, dans le cas d'un moteur à explosion, les gaz d'échappement (9) et l'apport supplémentaire d'un gaz stocké dans une bouteille (8), un bouchon (18) permet l'adjonction de liquides et de produits toxiques volatils dans le réservoir mélangeur (4) où s'effectue un barbotage, les actions du brûleur (7), de la bouteille de gaz (8) et du réservoir mélangeur (4) peuvent suivant le traitement désiré s'employer séparément ou s'additionner, le flux de gaz en sortie du réservoir mélangeur (4) est dirigé par des conduits (5) munis d'injecteurs (6) dans les galeries ou terriers.1- Mobile and autonomous device, generator, propellant and earth distributor, of a mixture of toxic gases with a view to destroying or repelling burrowing pests in their galleries or burrows, such as moles, brown rats, nutria, characterized by turbine (1), driven by a motor (2), sucking and propelling a gas flow consisting of a first supply of gas produced by a burner (7) of materials to be diffused after ignition located upstream of the turbine (1) then driven by a nozzle (3) in a mixing tank (4) after having recovered, in the case of an internal combustion engine, the exhaust gases (9) and the additional supply of a gas stored in a bottle (8 ), a plug (18) allows the addition of liquids and volatile toxic products in the mixing tank (4) where bubbling takes place, the actions of the burner (7), the gas bottle (8) and the depending on the desired treatment, the mixing tank (4) mployer separately or add up, the gas flow at the outlet of the mixing tank (4) is directed by conduits (5) provided with injectors (6) in the galleries or burrows.
2- Appareil suivant la revendication 1 caractérisé en ce qu'il génère un gaz toxique produit par un brûleur (7) situé en amont de la turbine (1).2- Apparatus according to claim 1 characterized in that it generates a toxic gas produced by a burner (7) located upstream of the turbine (1).
3- Appareil suivant la revendication 1 caractérisé par un entraînement par moteur à explosion dont les gaz d'échappement sont réinjectés dans le flux aval de la turbine (1) au niveau de l'embout (3).3- Apparatus according to claim 1 characterized by a combustion engine whose exhaust gas is reinjected into the downstream flow of the turbine (1) at the nozzle (3).
4- Appareil suivant la revendication 3 caractérisé par la récupération des gaz d'échappement du moteur en vue de supprimer la nuisance pour l'utilisateur du matériel, tels que souffleur à turbine et autres.4- Apparatus according to claim 3 characterized by the recovery of exhaust gases from the engine in order to remove the nuisance for the user of the equipment, such as turbine blower and others.
5- Appareil suivant la revendication 1 caractérisé par l'utilisation d'un gaz comprimé, provenant d'une bouteille (8), qui est réinjecté dans le circuit aval de la turbine (1) au niveau de l'embout (3).5- Apparatus according to claim 1 characterized by the use of a compressed gas, from a bottle (8), which is reinjected into the downstream circuit of the turbine (1) at the nozzle (3).
6- Appareil suivant l'une des revendications de 1 à 5, caractérisé par le passage du flux de gaz toxiques, obtenu en sortie de l'embout (3), dans un réservoir mélangeur (4), où, par un barbotage dans un liquide volatil et toxique, le flux peut être à nouveau surenchéri.6- Apparatus according to one of claims 1 to 5, characterized by the passage of the flow of toxic gases, obtained at the outlet of the nozzle (3), in a mixing tank (4), where, by bubbling through a volatile and toxic liquid, the flow can be increased again.
7- Appareil suivant l'une des revendications de 1 à 6, caractérisé par l'utilisation d'un cône (16) mobile, qui obstrue la galerie à traiter après introduction du bec (17), monté sur le conduit (5) de sortie de gaz de traitement7- Apparatus according to one of claims 1 to 6, characterized by the use of a movable cone (16), which obstructs the gallery to be treated after introduction of the spout (17), mounted on the conduit (5) of process gas outlet
8- Appareil suivant l'une des revendications de 1 à 7, caractérisé par un ensemble compact, démontable, mobile et autonome pouvant être fixé sur un support (10) repris dans une stucture (11) équipée de roues (19), la présence du moteur (2) permet d'autotracter l'ensemble.8- Apparatus according to one of claims 1 to 7, characterized by a compact, removable, mobile and autonomous assembly which can be fixed on a support (10) included in a structure (11) equipped with wheels (19), the presence motor (2) allows to self-tow the whole.
QUILLE DE REMPLACEMENT (REGLE 26) REPLACEMENT Keel (RULE 26)
PCT/FR1996/000638 1996-04-25 1996-04-25 Mobile autonomous apparatus generating and spraying into the ground a mixture of toxic gases to destroy and chase noxious burrowing animals in their runs or burrows WO1997039621A1 (en)

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PCT/FR1996/000638 WO1997039621A1 (en) 1996-04-25 1996-04-25 Mobile autonomous apparatus generating and spraying into the ground a mixture of toxic gases to destroy and chase noxious burrowing animals in their runs or burrows

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PCT/FR1996/000638 WO1997039621A1 (en) 1996-04-25 1996-04-25 Mobile autonomous apparatus generating and spraying into the ground a mixture of toxic gases to destroy and chase noxious burrowing animals in their runs or burrows

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7617630B2 (en) 2006-06-07 2009-11-17 Larry Allan Holmes Method and apparatus for exterminating subterranean burrowing animals

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB107651A (en) * 1916-07-07 1917-07-09 William Knight-Harrison Improved Means for Destroying Rats and other Vermin in their Burrows or Holes.
US1492732A (en) * 1923-07-18 1924-05-06 Louis A Knopf Gopher killer
DE1507130A1 (en) * 1965-03-12 1969-12-18 Jakob Meyer Portable smoking device for the destruction of agricultural pests
CH637807A5 (en) * 1982-08-04 1983-08-31 Eduard Leutenegger Device for fumigating the passages in earth structures built by animals
US4829706A (en) * 1986-10-24 1989-05-16 Perry John C Pest extermination method and apparatus
US5109628A (en) * 1990-05-29 1992-05-05 Ellefson Lee J Mole and gopher control apparatus
FR2725875A1 (en) * 1994-10-24 1996-04-26 Serbic Sarl Mobile machine for gassing burrowing animals

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB107651A (en) * 1916-07-07 1917-07-09 William Knight-Harrison Improved Means for Destroying Rats and other Vermin in their Burrows or Holes.
US1492732A (en) * 1923-07-18 1924-05-06 Louis A Knopf Gopher killer
DE1507130A1 (en) * 1965-03-12 1969-12-18 Jakob Meyer Portable smoking device for the destruction of agricultural pests
CH637807A5 (en) * 1982-08-04 1983-08-31 Eduard Leutenegger Device for fumigating the passages in earth structures built by animals
US4829706A (en) * 1986-10-24 1989-05-16 Perry John C Pest extermination method and apparatus
US5109628A (en) * 1990-05-29 1992-05-05 Ellefson Lee J Mole and gopher control apparatus
FR2725875A1 (en) * 1994-10-24 1996-04-26 Serbic Sarl Mobile machine for gassing burrowing animals

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7617630B2 (en) 2006-06-07 2009-11-17 Larry Allan Holmes Method and apparatus for exterminating subterranean burrowing animals

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