Fumigators Patents (Class 43/125)
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Patent number: 6327813Abstract: An insect controller in which at least one volatile insecticidal or insect repellent compound that volatizes without heating is carried on a support with at least one through hole. The use of a volatile insecticidal or insect repellent compound without heating can ensure satisfactory insect-controlling effects. If a specific structure, e.g., folding structure, is employed for the insect controller, wasteful evaporation of the volatile insecticidal or insect repellent compound can be reduced during non-use.Type: GrantFiled: August 27, 1997Date of Patent: December 11, 2001Assignee: Sumitomo Chemical CompanyInventor: Takao Ishiwatari
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Patent number: 6306913Abstract: A projectile can be used to administer pesticides such as one or more from the group consisting of 4-allylanisole, anisole, allylbenzene, 4-isopropylanisole, p-anisaldehyde, ethylbenzene, cumene, 4-methoxyacetophenone, 4-methylstyrene, 2-propylphenol, phenetole, and toluene, for scolytid infestation. Conifers, which are a target for scolytids, are protected by the application of the pesticides by use of a projectile containing the compound which explodes upon contact with the conifer thereby emitting the compound.Type: GrantFiled: December 21, 1998Date of Patent: October 23, 2001Assignee: The United States of America as represented by the Secretary of AgricultureInventors: Jane L. Hayes, Brian L. Strom, Lawrence M. Roton, Leonard L. Ingram, Jr., Edgar R. Butts
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Patent number: 6286248Abstract: Disclosed are rope-like fumigants. The rope-like fumigants are sufficiently sturdy thick, or tightly twisted or braided that they can be generally vertically positioned without drooping at their top, even though they are considerably elongated. The rope-like fumigants are loaded with an insecticide, fragrance, or the like, and lit from the top. Very low cost materials such as jute, hemp, or the like form the base material for the fumigant. A holder is disclosed which retains the rope-like fumigant in a vertical position from its lower portion, while reducing the incidence of the fumigant's prematurely extinguishing. A method of controlling insects by use of the fumigant is also disclosed.Type: GrantFiled: December 15, 1999Date of Patent: September 11, 2001Assignee: S. C. Johnson & Son, Inc.Inventors: Harry E. Bryant, Donald W. Hildebrandt, Douglas P. Gundlach
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Patent number: 6282833Abstract: A device for repelling insects from the vicinity of a support surface for the repelling device. The repelling device has a base which can be placed against an upwardly facing support surface to thereby maintain the repelling device in an operative position, a first arm connected to the base and in an elevated position above the upwardly facing surface on which the repelling device is maintained in the operative position and rotatable around a vertically extending axis, a first element depending from the first arm and rotatable with the first arm around the vertically extending axis, and a drive which is operable to rotate the first arm around the vertically extending axis to thereby cause the first element to trace an annular path around the vertically extending axis.Type: GrantFiled: December 9, 1999Date of Patent: September 4, 2001Inventor: Daynin Dashefsky
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Patent number: 6279261Abstract: In a process for thermal pest control, a fuel-operated heater with separate flue gas routing is used to heat up a space to be treated. Fumigants may be additionally introduced into the air of the space to be treated, especially if the combustion chamber 13 of the heater is separated from the heat exchanger chamber 8 of the heater in a gas-tight manner. The process is particularly suitable for disinfecting mills and food-processing plants.Type: GrantFiled: May 25, 1999Date of Patent: August 28, 2001Assignee: Binker Materialschutz GmbHInventors: Gerhard Binker, Joachim Binker
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Patent number: 6203824Abstract: The gaseous chemical compound, carbonyl sulphide, has hitherto been unknown as a fumigant for the control of insects and mites. Experiments have shown conclusively that carbonyl sulphide can be used as such a fumigant, with fumigation properties comparable to those of phosphine and methyl bromide. The effectiveness of carbonyl sulphide against insects (both adult and immature stages), mites, termites and moulds is demonstrated. In addition, its low absorbtion by grain, lower flammability than phosphine, lack of influence on seed germination, and apparent environmental safety make carbonyl sulphide particularly beneficial as a fumigant of stored grain. It may also be used to fumigate other stored produce (including perishable foodstuff), soil, timber and spaces (such as buildings) and any material likely to be infested by insects or mites, or act as a source of such infestation.Type: GrantFiled: November 10, 1997Date of Patent: March 20, 2001Assignee: Commonwealth Scientific and Industrial Research OrganisationInventors: Henry Jonathan Banks, Francis James Michael Desmarchelier, Ren Yonglin
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Patent number: 6061950Abstract: A burnable coil holder such as a mosquito coil holder has a base member with a plurality of non-metallic support peaks and a higher central metal support spade. The spade supports the burnable coil from a single point under normal circumstances. The non-metallic support peaks provide support if the coil sags during use. The support peaks are positioned in a cross or spiral array around the spade. The spade has teeth to grip the coil, a shoulder to support the coil, and spaced legs to permit easy insertion of the spade into the base member.Type: GrantFiled: July 2, 1998Date of Patent: May 16, 2000Assignee: S. C. Johnson & Son, Inc.Inventors: Michael R. Carey, Paul E. Furner, Donald W. Hildebrandt, Amelia H. Majerowski, Russell H. Petersen
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Patent number: 6047497Abstract: A method and system are disclosed for fumigating at least one region with a non-flammable gaseous mixture including phosphine. A sensor senses the concentration of phosphine for atmosphere of the region and a flow controller controls flow to the region in response to the sensed concentration. A recycling passage removes a portion of the atmosphere from the region and returns the atmosphere to create a recycle flow through the region. In addition, a gas mixing system is provided to supply the non-flammable mixture by mixing phosphine from a phosphine source and an inert substance from an inert substance source.Type: GrantFiled: March 18, 1997Date of Patent: April 11, 2000Assignee: The BOC Group, Inc.Inventors: Dennis Smithyman, Carl W. Schmidt, Sloane R. Six
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Patent number: 6047496Abstract: Processes and devices for producing a heated non-flammable gaseous fumigant for structural fumigation use by the application of a carrier gas, such as carbon dioxide (102), to a heater (103) either prior or subsequent to mixing the gas with a toxic agent gas, such as methyl bromide (213), such as by means of a mixer (214) and applying the mixture of gasses as a structural fumigant to eradicate target pests within a structure (106). In the preferred embodiment, the gaseous carbon dioxide is formed by flashing liquid carbon dioxide (614) directly to the gaseous state in a heater (630) prior to being mixed with methyl bromide (654) in a mixer (648) and applying the mixture of gasses as a structural fumigant within a structure (668).Type: GrantFiled: March 20, 1996Date of Patent: April 11, 2000Inventors: Kenneth D. Leitner, Arthur W. R. Terry
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Patent number: 6032407Abstract: A combination ultra-low volume aerosol generator and thermal fogger for dispensing a mosquito killing insecticide includes a power source which may be a gasoline driven engine and an air pump connected to the power source. The air pump drives a turbine pump which has a rotatable turbine wheel. There is a fluid pump connected to and driven by rotation of the turbine wheel. An insecticide formulation tank is connected to the fluid pump and provides insecticide to an atomizing nozzle and a thermal fog muffler and fog discharge. There is a flow selector valve connected to the fluid pump to determine which discharge device receives fluid insecticide. There is a volume control valve connected between the fluid pump and the flow selector valve.Type: GrantFiled: October 19, 1998Date of Patent: March 7, 2000Assignee: Clarke Engineering Technologies, Inc.Inventor: Larry D. Conner
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Patent number: 5939033Abstract: A system to deliver gas/vapor from solid materials. Specifically, the delivery system for the use of gas or vapor released from a solid material, such as a non-aqueous/solid hydrogen peroxide complex. The system is comprised of a delivery system that is configured to receive a plurality of disks containing the solid material and provide these disks into an injector. The injector heats the disks to produce a gas or vapor that is then provided into a chamber. The sterilization process can be done by gas or vapor alone, or in combination with plasma or ultra violet radiation. In particular, a control system automatically induces the delivery system to provide the injector with a disk and then remove the disk once the injection sequence is complete.Type: GrantFiled: October 28, 1996Date of Patent: August 17, 1999Assignee: Johnson & Johnson Medical, Inc.Inventors: Richard Jed Kendall, Xiaolan Chen, Michael Hahs, Paul Taylor Jacobs, Szu-Min Lin, Robert M. Spencer, Harold R. Williams
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Patent number: 5932172Abstract: Fumigation of grain in a storage facility having a plurality of grain silos or bins is effected from a single source of a gaseous fumigant. The single source of gaseous fumigant is connected to a gas supply duct through which a carrier gas flows. The gas inlet ports of the silos are also connected to the gas supply duct. The connection between each gas inlet port and the duct is provided with a respective valve and a respective orifice plate, the orifice or aperture of which is sized so that the pressure drop across the orifice plate into the silo is substantially greater than the pressure drop across any other component between the gas source and the silo. With this arrangement, the flow rate of gaseous fumigant through the grain-containing silos in the facility suffers only a minor perturbation when a valve between the duct and a silo is opened or closed. This minor perturbation can be readily compensated by maintaining the gas pressure in the duct at a constant value.Type: GrantFiled: April 7, 1997Date of Patent: August 3, 1999Assignee: Commonwealth Scientific and Industrial OrganisationInventor: Robert Gordon Winks
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Patent number: 5911950Abstract: A system to deliver gas/vapor from solid materials. Specifically, the delivery system for the use of gas or vapor released from a solid material, such as a non-aqueous/solid hydrogen peroxide complex. The system is comprised of a delivery system that is configured to receive a plurality of disks containing the solid material and provide these disks into an injector. The injector heats the disks to produce a gas or vapor that is then provided into a chamber. The sterilization process can be done by gas or vapor alone, or in combination with plasma or ultra violet radiation. In particular, a control system automatically induces the delivery system to provide the injector with a disk and then remove the disk once the injection sequence is complete.Type: GrantFiled: September 30, 1997Date of Patent: June 15, 1999Assignee: Johnson & Johnson Medical, Inc.Inventors: Xiaolan Chen, Paul Taylor Jacobs, Szu-Min Lin, Robert M. Spencer, Harold R. Williams
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Patent number: 5829188Abstract: A liquid storage container, in which an extermination liquid is stored, is at an upper portion of a case. A gauze or other permeable material is mounted on the outer surface of a support on a lower portion of the liquid storage container. An upper end of a portion of the gauze is transferably connected to the liquid storage container to transfer extermination liquid to the rest of the gauze by wicking action. Capillary action causes the extermination liquid to saturate the gauze. A sirocco fan and a motor, below the gauze, causes air from outside to be drawn into the case from an opening on the upper portion of case. The air passes through and around the gauze, causing vaporization of the extermination liquid in the gauze. The vaporized extermination liquid, cooled and densified by vaporization, is blown outside the case through a lower ventilation opening of the case.Type: GrantFiled: November 21, 1995Date of Patent: November 3, 1998Assignee: Yuugen Kaisha KaishinInventor: Fuminao Tanitomi
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Patent number: 5796914Abstract: An electrically activatable fumigating device and the method of its use. The device is adapted to be useable with vertically or horizontally oriented, wall-mounted electrical receptacles as well as receptacles mounted in horizontal countertops, all without the need for moving parts in the device. This is accomplished by the relative angle of the electrical plug to the longitudinal axis of a well contained within the body of the fumigating device from the mouth of which active ingredient is expelled by chemical reaction. Use of a modular heating assembly aids in allowing economical manufacture so that the fumigating device may be made inexpensively enough to be a single use device, with a self-disabling, single use, electrically activated heating means.Type: GrantFiled: April 17, 1996Date of Patent: August 18, 1998Assignee: S. C. Johnson & Son, Inc.Inventors: John J. Gatzemeyer, Robert E. Corba, Scott W. Demarest, Nicholas M. Gerrits
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Patent number: 5756046Abstract: When fumigating a bulk particulate commodity stored in a top-vented vertical silo by slowly passing a gas containing a low concentration of a gaseous fumigant through the bulk mass, differences between the temperature, T.sub.g, in the bulk mass and the ambient temperature, T.sub.a, outside the silo cause a "chimney effect" within the silo, and possible unwanted dilution of the fumigant. The chimney effect also occurs in other top-vented storage structures containing particulate commodities. To overcome the chimney effect, the fumigant-containing gas is supplied through a duct to the base of the storage structure at a flow rate Q.sub.f (in m.sup.3 sec.sup.1) determined by the relationship ##EQU1## where g is the acceleration due to gravity (approximately 9.8 m sec .sup.2); P.sub.a is the atmospheric pressure expressed in Pascals; R.sub.a is the gas constant for air (=287 J kg.sup.-1 K.sup.-1); T.sub.a is in K; T.sub.g is also in K; R is a resistance factor (in Pascals sec m.sup.Type: GrantFiled: June 25, 1996Date of Patent: May 26, 1998Assignee: Commonwealth Scientific and Industrial Research OrganisationInventors: Robert Gordon Winks, Aleck James Hunter
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Patent number: 5753183Abstract: Methyl iodide is employed as a structural fumigant for the effective control of soil borne and structural pests such as wood rotting fungi, arthropods such as insects and arachnids. Methyl iodide is employed in substantially the same manner as is customary for use of methyl bromide, and is at least as effective as methyl bromide when used in comparable amounts.Type: GrantFiled: May 17, 1996Date of Patent: May 19, 1998Assignee: The Regents of the University of CaliforniaInventors: Howard D. Ohr, Nigel M. Grech, James J. Sims
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Patent number: 5731055Abstract: Gas-permeable 100% reinforced thermosetting polyester film material for the manufacture of pest control applicators, comprising a grid including a base of polyester yarn overlain with top and bottom layers of polyester fibers, and an aqueous-based paste of the same polyester filling the spaces between the grid yarn and fibers and having a melting point lower than the grid yarn and fibers polyester. A pest control applicator is formed of such film material, filled with pest control agent reactive with water to release a fumigating gas, and after reaction of the pest control agent with air humidity, the applicator is immersed in water to deactivate residial pest control agent.Type: GrantFiled: February 21, 1995Date of Patent: March 24, 1998Assignee: Casa Bernardo LTDAInventor: Marie Cristina Spada Bernardo
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Patent number: 5700039Abstract: An exhaust pipe adapter for connecting a conventional garden hose to an exhaust pipe of a vehicle for the purpose of humanely exterminating underground dwelling vermin by the exhaust fumes of the vehicle being directed from the distal end of the garden hose into a hole in the ground. The exhaust pipe adapter includes a tubular rubbery body having a large opening at one end sized for placement over and releasable connection to an exhaust pipe end, and the opposite end of the adapter is affixed with rigid male threads sized for connection to the female end of a standard garden hose. The rubbery body of the adapter includes differing internal diameters to allow it to be snugly attached to largely varying exhaust pipe diameters. An adjustable circular hose clamp is provided to compress the rubbery body onto the exterior surface of the exhaust pipe to maintain the adapter in place during use.Type: GrantFiled: April 4, 1996Date of Patent: December 23, 1997Inventor: Michael J. Manning
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Patent number: 5678352Abstract: Processes and devices for producing a heated non-flammable gaseous fumigant for commodity fumigation use by application of a carrier gas, such as carbon dioxide (102), to a heater (103) either prior or subsequent to mixing the gas with a toxic agent gas, such as methyl bromide (213), such as by means of a mixer (214) and applying the mixture of gasses as a commodity fumigant to eradicate target peats infesting a commodity stored within an enclosed volume (106). In the preferred embodiment, the gaseous carbon dioxide is formed by flashing liquid carbon dioxide (614) directly to the gaseous state in a heater (630) prior to being mixed with methyl bromide (654) in a mixer (648) and applying the mixture of gases as a fumigant to a commodity held within an enclosure (668).Type: GrantFiled: January 25, 1996Date of Patent: October 21, 1997Inventors: Kenneth D. Leitner, Arthur W. R. Terry
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Patent number: 5662865Abstract: The invention relates to a chamber for use in a fumigation method to produce a fumigant gas mixture and supply it to a circulatory loop gas flow system gas. The chamber is adapted to receive fumigant gas generation device and includes:an inlet port controlled by an inlet valve,an outlet port controlled by an outlet valve,a flushing gas inlet controlled by a flushing gas inlet valve for connection to a source of inert gas,a vent valve, andaccess means openable for access to its interior from a position outside of the fumigation space.The chamber forms part of the loop gas flow system when connected to ends of a gas duct. The invention further relates to a method of fumigating a bulk commodity in an enclosed fumigation space wherein the fumigant gas mixture is generated in the chamber as well as to use of the chamber in such a fumigation method.Type: GrantFiled: September 21, 1995Date of Patent: September 2, 1997Assignee: Degesch GmbHInventor: Bevin Henry Shenton Blatchford
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Patent number: 5657574Abstract: A mosquito coil having an enlarged outer portion for providing quick coverage of an insect control ingredient in a space that previously had none. The coil is provided with urea for greater breakage resistance and kerosene and peanut shell powder to improve igniting and burning characteristics.Type: GrantFiled: May 13, 1996Date of Patent: August 19, 1997Assignee: S. C. Johnson & Son, Inc.Inventors: Thomas V. Kandathil, Francis J. Randall, James Runkel, Michael J. Servi
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Patent number: 5635132Abstract: A process for decontamination and detoxification of a room wherein an atomizer is used to diffuse a product containing essential oils as a mist. The outer openings of the room to be decontaminated and detoxified are closed and the product is diffused as a true aerosol from the center of the room. After the diffusion is stopped, the mist is allowed to decontaminate and detoxify room and the room is then aired.Type: GrantFiled: August 10, 1994Date of Patent: June 3, 1997Inventor: Michel Blanc
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Patent number: 5588252Abstract: A mole killing device having a direct connection to the exhaust of a small gasoline engine and conveying the fumes from the exhaust to mole passages and preventing the escape of the fumes from the passages.Type: GrantFiled: January 29, 1996Date of Patent: December 31, 1996Inventor: Jerry L. Jones
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Patent number: 5584139Abstract: A portable, collapsible chamber for asphyxiating trapped animals is described. The chamber is used in its canopy configuration and is transported and stored in its collapsed or folded configuration. When deployed in its canopy configuration, the chamber is placed over a trap that contains an animal in captivity. The animal is subjected to a lethal or immobilizing gas which is supplied to the chamber. The chamber includes front, back and end panels, each of which is hinged to an edge of a top panel. The panels are configured so that there gaps which function as gas vents between the end panels and the front and back panels. The front panel contains a gas inlet opening. The chamber optionally includes carrying handles, magnetic strips to help secure the chamber in its collapsed configuration and heat sensitive tape to sense the temperature of the chamber when gas is supplied to it.Type: GrantFiled: December 6, 1995Date of Patent: December 17, 1996Inventor: Jack W. Wentworth
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Patent number: 5566502Abstract: An insecticide dispenser that has a safety device such that when there is a loss of power, the inlet and outlet ports of the dispenser are shut to prevent loss of insecticide. A heater is positioned in the dispenser near the air inlet port to heat the incoming air before it comes in contact with the insecticide. The dispenser has a test mechanism to test the dispenser and insure it is working properly. The timer of the dispenser allows for setting a start time and a period of time that the dispenser is active.Type: GrantFiled: January 17, 1995Date of Patent: October 22, 1996Assignee: Nihon Naishi Inc.Inventor: Hiromi Shigetoyo
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Patent number: 5518692Abstract: Methyl iodide is employed as a soil fumigant for the effective control of plant pathogens, nematodes, bacteria and weeds. Methyl iodide is employed in substantially the same manner as is customary for use of methyl bromide, and is at least as effective as methyl bromide when used in comparable amounts.Type: GrantFiled: June 7, 1995Date of Patent: May 21, 1996Assignee: The Regents of the University of CaliforniaInventors: Nigel M. Grech, Howard D. Ohr, James J. Sims
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Patent number: 5501032Abstract: A method, compositions and apparatus are disclosed for causing the death of pupating insects, especially fleas, at all stages of the life cycle. The invention includes by both direct and residual insecticidal extermination of juveniles, adults, larvae and eggs, and also provides an environment of elevated humidity, temperature and pressure around pupal cocoons to cause the cocoons open quickly, so that the emergent insects are killed by residual insecticide, thus providing complete termination of an insect infestation and prevention of development of new infestations from subsequent emergence of metamorphosed insects from surviving pupa. Extermination occurs from the simultaneous application of a "residual" adulticide, a "residual" larvacide, and high temperature hot water under pressure to the infested location.Type: GrantFiled: May 31, 1994Date of Patent: March 26, 1996Assignee: FleaXperts, Inc.Inventor: Judith L. Pitman
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Patent number: 5403597Abstract: A method for fumigating an enclosed structure includes release of sufficient phosphine into the enclosed structure to maintain an average concentration of between about 50 ppm and 500 ppm phosphine. Concurrently, sufficient carbon dioxide is released into the enclosed structure to maintain an average concentration of between about 4% and 10% carbon dioxide, and a temperature of between about 30 degrees Celsius to about 40 degrees Celsius is maintained in the enclosed structure to enhance fumigation effectiveness.Type: GrantFiled: November 22, 1993Date of Patent: April 4, 1995Inventor: David K. Mueller
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Patent number: 5353544Abstract: A fumigation apparatus is provided which uses mixed gas of hydrogen phosphide and methyl bromide, said mixed gas containing hydrogen phosphide at a high concentration, and which is free from the risk of ignition and safe. The apparatus, furthermore, is capable of fumigation that can completely kill noxious insects infesting green plants within a short time, exhibiting very little phytotoxicity on the plants and leaving extremely little residual fumigating agent after fumigation. Said apparatus is composed of (a) a system for purging air and hydrogen phosphide in a hydrogen phosphide path; (b) a system for hydrogen phosphide supply and transfer from a hydrogen phosphide bomb to a mixer through a humidifier; (c) a system for methyl bromide supply and transfer from a methyl bromide bomb to the mixer; and (d) a system for transferring the mixed gas from the mixer to a fumigation chamber.Type: GrantFiled: December 14, 1992Date of Patent: October 11, 1994Assignee: Teijin Chemicals Ltd.Inventors: Teruyuki Tsutsumi, Tetsunori Sato, Akira Arita
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Patent number: 5335446Abstract: The dispenser has a fan and an insecticide in its cavity. Upon control signals from a controller in the "in use" mode, the fan is started and shutters provided at an inlet and outlet are opened, while in the "not in use" mode, the fan is stopped and the shutters are closed. When one of the individual timers is selected, the controller issues control signals at times specified by the individual timers within a time period previously specified by the main timer. When the dispenser is in the "not in use" mode, the shutter isolates the cavity from the outside.Type: GrantFiled: November 18, 1992Date of Patent: August 9, 1994Assignee: Nihon Naishi Inc.Inventor: Hiromi Shigetoyo
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Patent number: 5282334Abstract: A dry insect extermination device is disclosed herein having box-like housing interiorly supporting an inner frame in spaced relationship to the walls of the housing defining an air conducting passageway between apertures in the housing sidewall and apertures in the frame bottom. The frame supports a heater and a fan for drawing heated air past chemically impregnated packs so that a dry chemical vapor is dispensed from the housing for distribution into the surrounding atmosphere.Type: GrantFiled: April 17, 1989Date of Patent: February 1, 1994Inventors: Kohichiro Kimura, Michael Overturf
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Patent number: 5246675Abstract: A housing for disposition of a conventional aerosol fogger having an upright spraying mechanism wherein the housing securely maintains the aerosol fogger perpendicular to a mounting surface such as a wall or ceiling. The apparatus employs a housing having an elongated cylindrical chamber for slidably insertion of the fogger canister. Upon insertion, an end cap is used to seal the chamber opening and further force the canister into a predetermined position within the chamber. Opposite the frontal opening, the chamber terminates in a end wall having a centrally disposed aperture designed to allow protrusion of the fogger's dispersion nozzle further engaging a trigger mechanism of said dispersion nozzle thereby causing expulsion of fogger canister contents though said end wall aperture.Type: GrantFiled: October 7, 1991Date of Patent: September 21, 1993Inventor: Anthony Castronovo
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Patent number: 5218782Abstract: A recycling bench includes a rigid housing containing a plurality of aligned compartments in adjacency relative to one another utilizing a single lid overlying the compartments for positioning of various recycling components within each compartment. An alternative aspect of the invention includes individual lids and a pesticide fumigant to minimize insect infestation in the storage of various recycling components.Type: GrantFiled: November 14, 1991Date of Patent: June 15, 1993Inventors: Cecelia M. Null, Clinton D. Null
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Patent number: 5205067Abstract: A device for treating mausoleums against Phorid Fly infestation by discharging a cloud of dry powder insecticide into each sealed, mausoleum cell entombment, from outside the cell; the insecticide powder covers and adheres to all surfaces in the cell; the insecticide used is chosen from those insecticides relatively harmless to human beings, and that will continue to kill Phorid Flies for a period of time greater than the expected dehydration time of the contents of the sealed mausoleum cell, which dehydration time is from five to seven years.Type: GrantFiled: October 3, 1991Date of Patent: April 27, 1993Inventor: Matthew J. Thomas
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Patent number: 5168654Abstract: An insect-repellent device comprising a housing to hold a charger and a circuit board, two insect-repellent units movably received in two recessed surface portions on the outside of the housing and electrically connected to the circuit board by two separate electric wires, two reel assemblies fastened on housing at two opposite sides and controlled to let off or take up the insect-repellent units, a power switch for power control, a sterilization control switch for sterilization control, and indicator lamps for power and sterilization indications respectively.Type: GrantFiled: May 29, 1992Date of Patent: December 8, 1992Inventor: Hsiu-Hung Chien
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Patent number: 5154018Abstract: A method for killing fire ants in subterranean tunnels includes fogging the subterranean tunnels with an insecticidal amount of thermal aerosol fog through a boot covering the subterranean tunnels and then blowing hot air into the subterranean tunnels whereby the thermal aerosol fog is forced further into the subterranean tunnels. The apparatus used in the method includes a heat generator unit capable of producing thermal fog and a boot with skirt connected to said generator and which covers said subterranean tunnels. A dye may be added to the fog to provide a color marking for each fire ant mound treated by the fog.Type: GrantFiled: February 3, 1992Date of Patent: October 13, 1992Assignee: Tifa Ltd.Inventor: Arnold M. Livingston
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Patent number: 5148627Abstract: A device and method for treating mausoleums against Phorid Fly infestation by discharging a cloud of dry powder insecticide into each sealed, mausoleum cell entombment, from outside the cell; the insecticide powder covers and adheres to all surfaces in the cell; the insecticide used is chosen from those insecticides relatively harmless to human beings, and that will continue to kill Phorid Flies for a period of time greater than the expected dehydration time of the contents of the sealed mausoleum cell, which dehydration time is from five to seven years.Type: GrantFiled: June 18, 1990Date of Patent: September 22, 1992Inventor: Matthew J. Thomas
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Patent number: 5109628Abstract: An apparatus includes a container with a lid securable thereon, with a first inlet elbow fixedly mounted to the lid and directed interiorly of the container, and an outlet elbow positioned adjacent the inlet elbow in communication with the interior of the container. A blower motor and nozzle is directed to direct pressurized air through the inlet elbow, wherein volatile noxious fluids are permitted to vitalize, wherein such directed gases are directed through the outlet elbow and an associated flexible conduit through a nozzle into an associated gopher hole and the like. Modifications of the invention include a postioning plate and spikes mounted orthogonally relative to an axis of the nozzle for securement of the nozzle relative to the gopher hole and may further include a threaded inlet tube to permit directing of components into the container with the lid secured thereon during use of the organization.Type: GrantFiled: May 29, 1990Date of Patent: May 5, 1992Inventor: Lee J. Ellefson
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Patent number: 5095647Abstract: In order to keep flying insects, especially mosquitoes, away from people, an apparatus has been developed. The apparatus includes a box (A, A") enclosing a heat source (10, 50), provided with at least one vertically oriented flat wall (13', 53'), and a container (C, C') holding an evaporable liquid chemical product. A wick (14, 54), wrapped in an impermeable coating or sheath (19, 59), has a rectangular cross-section and penetrates inside the container (C, C'). A free portion (14", 54") of the wick (14, 54) is devoid of the coating or sheath (19, 59) and extends upwards from the container (C, C') with its largest side (14"', 54"') being disposed parallel to but spaced from the heat source (10, 50).Type: GrantFiled: October 1, 1990Date of Patent: March 17, 1992Assignee: Zobele Industrie Chimiche S.p.A.Inventors: Franco Zobele, Giovanna Z. Lipparini
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Patent number: 5063706Abstract: A device for exterminating pests having a cylinder filled with carbon dioxide in which (a) pesticide(s) is(are) dissolved, piping coupled to the cylinder, and a plurality of capillary nozzles affixed to the piping, and a method of exterminating pests employed this device. The capillary nozzles are designed such that, considering adjacent capillary nozzles, the ratio of the nozzle exit area of the capillary nozzle close to the cylinder to the nozzle exit area of the capillary nozzle remote from the cylinder is set between 1:1.3 and 1:1.8. As a result, numerous independent enclosed spaces can be sprayed with little labor and in a short time by means of a small number of devices.Type: GrantFiled: January 4, 1991Date of Patent: November 12, 1991Assignees: Sumitomo Chemical Company, Ltd., Erika Carbon Dioxide Company, Ltd.Inventors: Seietsu Aki, Takaaki Ito, Yasuo Abe, Ichiro Inoue, Hiroyuki Miyachi
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Patent number: 4998377Abstract: An improved method of fumigating fresh plants on which pests are parasitic. The method comprises maintaining the fresh plants in a gaseous atmosphere composed of 10 to 50 mg/liter of methyl bromide, 0.01 to 10 mg/liter of hydrogen phosphide, and 1 to 50% by volume of carbon dioxide. The method can surely kill the pests on the plants without causing phytotoxicity.Type: GrantFiled: April 9, 1990Date of Patent: March 12, 1991Assignee: Teijin Chemicals, Ltd.Inventors: Teruyuki Tsutsumi, Tetsunori Sato, Akira Arita
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Patent number: 4989364Abstract: An improved method of fumigating a building structure which is enclosed in a substantially gas-impermeable barrier into which insect-eradicating case is introduced, by inflating one or more expandable bladders in substantially open spaces in the building before introducing the insect-eradicating gas is disclosed.Type: GrantFiled: April 27, 1990Date of Patent: February 5, 1991Assignee: Isothermics IncorporatedInventors: James J. Chaudoin, Michael R. Linford
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Patent number: 4976062Abstract: A chemical barrier for rodents and/or reptiles including an elongated flexible, porous fabric tube 22 of a generally rope-like size, shape and flexibility contains a plurality of elongated bodies, 24, 26 . . . of granular repellent material 28. The bodies 24, 26 . . . are spaced from each other by short, generally repellent free gaps 30 within the tube 22 and the size of the granules 28 in each body is sufficiently large that they cannot pass through the fabric forming the tube 22. Barriers 32 at the gaps 30 prevent the entry of the repellent material 28 into the gaps and allow the tube 22 to be severed in the gaps 30 within spillage of repellent material 28.Type: GrantFiled: June 2, 1988Date of Patent: December 11, 1990Inventors: Justin Rutledge, Steven Rutledge
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Patent number: 4966755Abstract: A method and apparatus for treating a material with gas or vapour, especially a fumigant, comprises a sealable enclosure device, a pump which may have an inlet for the agent and a heat reservoir, and a long flexible hose to allow the enclosure to be evacuated after treatment and the effluent discharged outside the premises where the material is treated.Type: GrantFiled: June 1, 1988Date of Patent: October 30, 1990Assignee: Rentokil LimitedInventor: Colin P. Smith
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Patent number: 4959925Abstract: A simple and inexpensive ventilated support stand, which can be assembled from a single pre-cut blank, into which a formed stick of combustible material containing an active insecticidal ingredient may be inserted and suspended for combustion and vaporization of the active ingredient. The stand is preferably made from a foil and paper laminate and can be shipped and stored flat and partially assembled then fully assembled by the user.Type: GrantFiled: October 11, 1989Date of Patent: October 2, 1990Assignee: S. C. Johnson & Son, Inc.Inventors: Kurt D. Nelson, Joseph E. Sus, Edward J. Lazzeroni, Sr., Timothy E. Zollers, Jimmy J. Hanko
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Patent number: 4938144Abstract: An ignition system for a combustible insecticide forming a fumigation device. The ignition system utilizes relative motion to actuate an ignitor which, in turn, ignites the insecticide. In one aspect, the relative motion is used to load a spring which, when released, strikes the ignitor to actuate it.Type: GrantFiled: February 16, 1988Date of Patent: July 3, 1990Assignee: S. C. Johnson & Son, Inc.Inventor: Scott W. Demarest
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Patent number: 4932155Abstract: A fumigant applicator for releasing therefrom a volatile substance, e.g., phosphine from a metal phosphide, at a controlled rate, thereby avoiding excessive local phosphine build-up and with complete protection of the contents against liquid water, in the shape of a sachet at least one face of which is formed from a spun-bonded, polyolefin sheet or fleece of heat and pressure bonded polyolefin fibers, which is vapor- and gas-pervious but impervious to liquid water and use, naturally water-resistant and of high tensile and tear strength, which sheet or fleece is rendered heat-weldable and is heat-sealed at its edges by a high porous coating, preferably a powder sprinkle coating, of a thermoplastic heat welding bonding layer which melts lower than the polyolefin fibers so that a heat welding seam at the edges of the sheet can form before the fibers melt so that the physical properties of the polyolefin fibers and the gas permeability thereof are substantially unaffected.Type: GrantFiled: May 25, 1988Date of Patent: June 12, 1990Assignee: Detia Freyberg GmbHInventors: Wolfgang Friemel, Volker E. Barth
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Patent number: 4889708Abstract: A fumigant composition comprising a pressurized mixture of a diluent gas and phosphine in predetermined proportions within a container adapted for release of gaseous fumigant. A method of preparing the composition comprises the steps of pumping a predetermined quantity of phosphine under pressure into the container and filling the container with a liquified diluent gas. A method of fumigating a substantially closed space by liberating the composition is also disclosed.Type: GrantFiled: February 22, 1989Date of Patent: December 26, 1989Assignee: The BOC Group, Inc.Inventors: Sherif Latif, Robert F. Ryan
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Patent number: 4882873Abstract: A kit for eliminating fleas, roaches, ants and other crawling insects from a confined area is described, as well as a method for its use. The kit comprises a container filled with a residual insecticide (most preferably a 0.50% chlorpyrifos formulation); an adjustable spray dispenser therefor; a high-strength flushing agent in an aerosol container (most preferably 1.07% pyrethrins); a standard fogging nozzle for dispensing the flushing agent from the aerosol container; an additional fogging nozzle having a long, thin, tubular extension for dispensing the flushing agent into cracks, crevices and voids in the area; at least one white monitoring insect trapping device having glue on at least one surface thereof; and an information sheet explaining how to use the kit in accordance with the method also described herein. Where roaches and ants are particularly sought to be eradicated, baited insect devices are also included.Type: GrantFiled: April 2, 1987Date of Patent: November 28, 1989Inventor: Gabriel L. Purnell