Decreasing Pollution Or Environmental Impact Patents (Class 422/900)
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Patent number: 5939026Abstract: An electron beam gas processing apparatus includes a single vacuum vessel maintained at vacuum by means of a vacuum pump and first and second lenses are disposed in the vacuum vessel. An electron beam emitted from an electron source is focused by each of the lenses, and the electron beam is irradiated onto a processing gas in a duct. When the current value of the electron beam is increased as the concentration of NOx in the processing gas increases, the focal distance is decreased by increasing the intensity of magnetic fields or the intensity of electric fields of the lenses in accordance with the current value of a filament, the current value of an arc power supply and the gas pressure in a gas reservoir and the first lens is moved toward a draw-out electrode and the second lens is moved toward the duct, so that a parallel electron beam of constant diameter is formed and the electron beam can be prevented from being increased in focusing diameter.Type: GrantFiled: December 29, 1997Date of Patent: August 17, 1999Assignee: Hitachi, Ltd.Inventors: Hirofumi Seki, Hirofumi Shirakata, Yasuro Hori, Shigeo Shiono
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Patent number: 5842110Abstract: A process for the in-situ transformation of chemical species present in the flue gas to form sulfur trioxide, wherein the fly-ash particles are conditioned by altering their surface electrical properties. More specifically, the subject invention is concerned with fly ash conditioning using plural lamps located at specific positions in a specific arrangements most advantageous to the chemical conversion that would take place. The novel invention conditions flue gas emissions by treating the flue gas with SO.sub.3, where the SO.sub.3 is generated in the flue gas by photocatalytic conversion of SO.sub.2 using selectively spaced and arranged ultra violet light emitting lamps and related automated components.Type: GrantFiled: March 11, 1996Date of Patent: November 24, 1998Assignee: University of Central FloridaInventors: Ali Tabatabaie-Raissi, Nazim Z. Muradov, Peter H. Peng
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Patent number: 5826631Abstract: A waste cylinder rupture vessel for release and recontainerization of toxic contents of compressed gas cylinders is defined by an enclosed chamber which accommodates a plurality of bearing surfaces for supporting and positioning a target cylinder thereon. A puncture spike disposed within the chamber is adapted to puncture the target cylinder at its mid-section, thereby releasing its contents. Connections are provided communicating with the enclosed chamber for evacuating and recontainerizing the contents released by a punctured cylinder without release of the contents into the environment. All of the cylinder processing operations may be provided remotely.Type: GrantFiled: October 20, 1995Date of Patent: October 27, 1998Assignee: Earth Resources CorporationInventors: Jeffrey W. Gold, Dan A. Nickens
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Patent number: 5784682Abstract: A system for separating constituents from a base material using RF energy which is coupled to a reaction chamber by way of a windowless transmission line. By eliminating the need for a window, traditional limitations placed on the maximum power delivered to the resonating cavity are eliminated. Thus, the only practical limitation on the RF energy which can be delivered to a resonating cavity are the ability of RF energy source to produce that energy and the ability of the resonating cavity to manage that energy.Type: GrantFiled: February 16, 1996Date of Patent: July 21, 1998Inventors: Stephen M. Birken, Karl Birken
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Patent number: 5674451Abstract: Methods for sterilization of an article comprising contacting the article with a blend comprising an ethylene oxide sterilant and a propellant. The propellant comprises a fluoroiodocarbon of the general formula C.sub.a H.sub.b Br.sub.c Cl.sub.d F.sub.e I.sub.f N.sub.g O.sub.h, wherein a is between and including 1 and 8, b is between and including 0 and 2, c, d, g and h are each between and including 0 and 1, e is between and including 1 and 17, and f is between and including 1 and 2.Type: GrantFiled: February 17, 1995Date of Patent: October 7, 1997Assignee: Ikon CorporationInventors: Jonathan Shelley Nimitz, Lance Harrell Lankford
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Patent number: 5635143Abstract: A method and apparatus for the microwave removal of contaminated concrete surfaces. The apparatus comprises a housing adapted to pass over a support surface. The housing includes a waveguide for directing microwave energy to the surface at an angle maximizing absorption of microwave energy by the surface. The apparatus is further provided with a source of microwave energy operably associated with the waveguide, wherein the microwave energy has a frequency of between about 10.6 GHz and about 24 GHz and acts to remove the uppermost layer from the surface. The apparatus further includes a debris containment assembly comprising a vacuum assembly operably associated with the housing. The vacuum assembly is adapted to remove debris from the area adjacent the surface.Type: GrantFiled: September 30, 1994Date of Patent: June 3, 1997Assignee: Martin Marietta Energy Systems, Inc.Inventors: Terry L. White, Timothy S. Bigelow, Charles R. Schaich, Don Foster, Jr.
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Patent number: 5613533Abstract: A waste cylinder rupture vessel for release and recontainerization of toxic contents of compressed gas cylinders is defined by an enclosed chamber which accommodates a plurality of bearing surfaces for supporting and positioning a target cylinder thereon. A puncture spike disposed within the chamber is adapted to puncture the target cylinder at its mid-section, thereby releasing its contents. Connections are provided communicating with the enclosed chamber for evacuating and recontainerizing the contents released by a punctured cylinder without release of the contents into the environment. All of the cylinder processing operations may be provided remotely.Type: GrantFiled: November 28, 1995Date of Patent: March 25, 1997Assignee: Earth Resources CorporationInventor: Dan A. Nickens
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Patent number: 5609829Abstract: An oxidation or converter apparatus for cleansing air contaminated by volatile organic compounds (VOC) in an exothermic reaction includes a first pipe connectible to a source of the VOC contaminated air and a combustion chamber with a burner, an inlet for the VOC contaminated air and an outlet to atmosphere for exhaust, the inlet being connected to the first pipe. A catalytic oxidizer having an inlet for the VOC contaminated air and an outlet to atmosphere for exhaust is also provided along with an air-to-air heat exchanger. The outlet of the catalytic oxidizer is connected to a first inlet of the heat exchanger in order to provide heated exhaust air to one side of the exchanger. A second inlet of the heat exchanger is connected by a suitable conduit to the first pipe. The contaminated air which is preheated in the heat exchanger is carried by a further conduit to the inlet of the combustion chamber.Type: GrantFiled: October 19, 1994Date of Patent: March 11, 1997Assignee: Comenco Systems Inc.Inventors: Walter P. Lucas, Raymond Hsu
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Patent number: 5607652Abstract: The invention provides a transportable reaction chamber for continuous biological and chemical decontamination of articles by means of a mixture of hot air and steam. The reaction chamber has a tunnel shaped reaction section through which the contaminated articles are transported on a conveyor and through which a mixture of decontaminant gases is circulated. An exhaust blower situated at an end of the reaction section, and transverse flow units along its length, provide both transverse and longitudinal gas flow in the reaction section.Type: GrantFiled: October 17, 1994Date of Patent: March 4, 1997Assignee: Dornier GmbHInventors: Paul Hellmuth, Norbert Klein, Michael Theis
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Patent number: 5499665Abstract: A waste cylinder rupture vessel for release and recontainerization of toxic contents of compressed gas cylinders is defined by an enclosed chamber which accommodates a plurality of bearing surfaces for supporting and positioning a target cylinder thereon. A puncture spike disposed within the chamber is adapted to puncture the target cylinder at its mid-section, thereby releasing its contents. Connections are provided communicating with the enclosed chamber for evacuating and recontainerizing the contents released by a punctured cylinder without release of the contents into the environment. All of the cylinder processing operations may be provided remotely.Type: GrantFiled: August 15, 1994Date of Patent: March 19, 1996Assignee: Earth Resources CorporationInventors: Jeffrey W. Gold, Dan A. Nickens
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Patent number: 5466425Abstract: A system for reducing biological organisms in a liquid effluent to non-viable organic molecules that includes: a stunning chamber that applies a voltage potential across biological organisms to break cell membranes and disable the defense mechanisms of vital organisms to ultraviolet radiation; a cavitation chamber to physically destroy any remaining membranes of biologicals in the effluent that may play host to vital organisms or allow such to hide therein, the action of the stunning and cavitation chambers releasing interferons; and a molecularly implanted stimulated emitter (MISE) chamber in which high levels of ultraviolet radiation are applied to virions and spores that remain at frequencies that are readily absorbed and operate to disassociate any viable DNA and RNA strands remaining, to thereby cause "death". Prior to the stunning chamber, preferably the effluent has any large solids therein, settled, floated or filtered out.Type: GrantFiled: July 8, 1994Date of Patent: November 14, 1995Assignee: Amphion International, LimitedInventor: Billy J. Adams
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Patent number: 5445800Abstract: A method and an apparatus for controlling reactions of a gas and a fluid that makes use of excellent reactivity of carbon soot molecules, metal porphyrin complexes and metal phthalocyanin complexes which are in an excited state has an arrangement that the carbon soot molecules, the metal porphyrin complexes and the metal phthalocyanin complexes which are excited by a physico-chemical method, such as light irradiation, and a gas containing oxygen are brought into contact with each other to generate active oxygen. Further, the gas containing the harmful substance and a fluid are brought into contact with each other so that direct reactions of the active oxygen and the excited molecules decompose the harmful substances.Type: GrantFiled: October 19, 1994Date of Patent: August 29, 1995Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Satoru Isoda, Toshiyuki Kamiya, Yoshio Hanazato, Akira Ikeda
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Patent number: 5439652Abstract: An improved photocatalytic method for removing organic contaminants from fluid or gas phases and a photoreactor design which allows exposure of photoreactive material to controlled periodic illumination. An improved method for improving the photoefficiency of a photocatalytic process comprising continuous illumination of the photocatalyst at a decreased light intensity.Type: GrantFiled: September 30, 1993Date of Patent: August 8, 1995Assignee: The Regents of the University of ColoradoInventors: Jeffrey G. Sczechowski, Carl A. Koval, Richard D. Noble
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Patent number: 5437844Abstract: A cooling system for the high voltage electrode of a corona treater includes an elongated hose disposed within the dielectric tube and around which the high voltage wire is spirally wound. The elongated hose is connected to a first port through which cooling fluid is introduced. The cooling fluid flows through the hose and out an open end into the dielectric tube. The cooling fluid then flows out of the dielectric tube through a second port and back to a reservoir after passing through a high voltage isolator.Type: GrantFiled: October 25, 1993Date of Patent: August 1, 1995Assignee: Pillar Technologies, Inc.Inventor: William H. Bonner
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Patent number: 5397551Abstract: The present invention relates to an incinerator devised to incinerate various kinds of wastes including medical and food wastes. Up to this time, the waste containing an explosive chemical substance like alcohol or the waste containing water in large quantities has been disposed of unsanitarily, requiring a great deal of labor and cost. The present invention is equipped with a primary combustion chamber, a secondary combustion chamber, a communicating means which introudces gases to the secondary combustion chamber from the primary combustion chamber, an exhaust means which discharges waste gas from the secondary combustion chamber and a microwave generation means. It is an incinerator aimed to solve the above problem by a method wherein waste is incinerated after it is desiccated and pyrolyzed by applying microwaves thereto and explosive gas is disposed of. It is an sanitary incinerator which contains no bad smell, no harmful substance and no smoke in the exhaust gas discharged after incineration.Type: GrantFiled: July 9, 1992Date of Patent: March 14, 1995Assignee: Daesung Industrial Co., Ltd.Inventor: Kim Won Sam
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Patent number: 5397535Abstract: Various kinds of used and potentially infectious medical articles such as injection needles are first crushed into pieces to such an extent that the shape of the articles can not be visually identified. Subsequently, the crushed medical articles and particulate absorbent are introduced into a mixer and mixed and heated therein to a temperature above 180.degree. C. by use of a heater in combination with frictional heat generated as the mixer blade is rotated, whereby the crushed infectious medical waste articles are completely sterilized. The particulate absorbent serves to absorb any unpleasant odor or toxic gas which is generated from the crushed infectious medical articles during heating. In such manner, sterilization of the crushed infectious medical appliances and absorption of the toxic gas can simultaneously be achieved, and moreover, the resultant sterile admixture can be used as an aggregate for construction material such as concrete.Type: GrantFiled: October 30, 1992Date of Patent: March 14, 1995Inventor: Tadashi Kaneko
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Patent number: 5337793Abstract: A waste cylinder rupture vessel for release and recontainerization of toxic contents of compressed gas cylinders is defined by an enclosed chamber which accommodates a plurality of bearing surfaces for supporting and positioning a target cylinder thereon. A puncture spike disposed within the chamber is adapted to puncture the target cylinder at its mid-section, thereby releasing its contents. Connections are provided communicating with the enclosed chamber for evacuating and recontainerizing the contents released by a punctured cylinder without release of the contents into the environment. All of the cylinder processing operations may be provided remotely.Type: GrantFiled: February 1, 1993Date of Patent: August 16, 1994Assignee: Earth Resources CorporationInventors: Jeffrey W. Gold, Dan A. Nickens
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Patent number: 5336842Abstract: The process for cleaning polluted solids by crushing the solids and removing the pollutants consists of mechanically fluidizing the crushed solids, through-blowing them with air and irradiating them with UV light, the air flow subsequently being subject to dust removal and irradiated with UV light again.Type: GrantFiled: May 11, 1992Date of Patent: August 9, 1994Assignee: Ultra Systems GmbH UV-OxidationInventors: Karl F. Massholder, Wilfried Werz
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Patent number: 5332009Abstract: A pressurized canister recycling apparatus is used to recycle contents of a plurality of pressurized canisters of varying length and diameter. The canisters are maintained in a hopper and released. The canisters are pushed into a canister piercing station where they are pierced while isolated from the outside environment. After being pierced and while still isolated from the outside environment, the canisters travel within an evacuation tank. The evacuated contents of the canisters are drawn away from the evacuation tank with filters recovering the active ingredients of the canisters and purifying the propellant. The propellant is then placed in a storage tank. The present invention is particularly useful for recycling medicinal Freon ingested into the body since the Freon recovered does not require additional purification before reuse.Type: GrantFiled: July 22, 1993Date of Patent: July 26, 1994Inventor: Larry W. Van Etten
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Patent number: 5284628Abstract: Convection towers which are capable of cleaning the pollution from large quantities of air and of generating electricity utilize the evaporation of water sprayed into the towers to create strong airflows and to remove pollution from the air. Turbines in tunnels at the skirt section of the towers generate electricity. Other embodiments may also provide fresh water, and operate in an updraft mode.Type: GrantFiled: September 9, 1992Date of Patent: February 8, 1994Assignee: The United States of America as represented by the United States Department of EnergyInventor: Melvin L. Prueitt
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Patent number: 4983364Abstract: An optimized thermal/catalytic combuster for the efficient oxidation of volatile organic compounds (VOC) in air. As an example, the invention is directly applicable to remedial action for clean-up of ground sites contaminated by spills or leaks of gasoline, organic paint solvents and the like, by a process known as air extraction. A thermal combuster and a catalytic oxidizer are interconnected by piping and control valves so that when one such element operates, the other is quiescent, depending on the concentration of combustible vapors in the extracted air. A dilution air valve, a heat exchanger, an electric heater, or a connection to a supplemental supply of clean-burning fuel, or all these devices, may be provided to ensure efficient operation. In an alternative embodiment, an internal combustion engine may be used in place of the thermal combuster. The engine can be used to supply power for other uses within the system or for external use.Type: GrantFiled: July 17, 1987Date of Patent: January 8, 1991Inventors: F. A. Mackinnon Buck, Detlev E. M. Hasselmann, Paul D. Labonte
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Patent number: 4976922Abstract: A sterilant mixture comprising 15 to 30 mole percent ethylene oxide and 70 to 85 mole percent 1,1-dichloro-2,2,2-trifluoroethane and/or 1-chloro-1,2,2,2-tetrafluoroethane, and a sterilization method using same.Type: GrantFiled: March 3, 1989Date of Patent: December 11, 1990Assignee: Union Carbide CorporationInventors: Simon Chippett, Stephen A. Conviser
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Patent number: 4820325Abstract: A filter cake formed of a glass precursor material and impregnated with a normally leachable toxicant can be heated, preferably with at least one other glass precursor material, at a sufficiently high temperature to form a molten composition which solidifies, upon cooling, to form a glass. The normally leachable toxicant becomes fixed within the glass rendering it substantially more non-leachable allowing for a more environmentally sound means for disposal, e.g., by landfill techniques. The process can be used to treat the arsenic sulfide-impregnated filter cake derived from the manufacture of food grade phosphoric acid.Type: GrantFiled: October 22, 1987Date of Patent: April 11, 1989Assignee: Stauffer Chemical CompanyInventor: Donald R. Wheeler
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Patent number: 4645382Abstract: Liquid or water-soluble pollutants which have entered into permeable soil strata are prevented from spreading and contaminating ground water by surrounding the contaminated zone on all sides with vertical barriers and closed off at the bottom by a horizontal injected floor which seals not only against water but also against the pollutants. The pollutant resistance of the floor is achieved by the use of injection materials on a silicate basis containing trialkoxysilanes of the general formula R-Si(OR').sub.3.Type: GrantFiled: August 12, 1985Date of Patent: February 24, 1987Assignee: Dynamit Nobel AGInventors: Rudolf Burkhardt, Hansjurgen Hass
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Patent number: 4601886Abstract: An air treatment apparatus operating in conjunction with a conventional type of air conditioning apparatus through which air moves in an air stream. The air treatment apparatus is to be loaded with any one of a plurality of interchangeable cassette type containers. Each container is to contain a particular type of a liquid substance such as an air freshening chemical. The air treatment apparatus is to be electrically controlled to operate through a pump to be dispensed as a plurality of short bursts of the substance within the air stream of the air conditioning apparatus at preselected intervals.Type: GrantFiled: May 24, 1984Date of Patent: July 22, 1986Inventor: Richard G. Hudgins
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Patent number: 4452671Abstract: A recycle water treatment system for separating oil vapor from steam recovering the oil and heat from the steam and destroys microorganisms and exotoxins which incorporates an inclined duct connected to a barometric condenser with a container for oil at the lower end of the condenser. Oil entrained in the steam is carried up the duct and over the barometric condenser. The steam heats the condenser water that is recovered while the entrained oil flows back down the duct into a recovery container. The condenser water-steam condensate mixture is maintained at about 180.degree. F. for a period of time sufficient to destroy microorganisms and exotoxins.Type: GrantFiled: October 20, 1980Date of Patent: June 5, 1984Assignee: Nibble With Gibble's, Inc.Inventor: William J. Oakes
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Patent number: 4427630Abstract: A sulfur compound and a nitrogen compound as ill-smelling components can efficiently be removed from a gas containing the same by bringing the gas into contact with an adsorbent comprising activated carbon having supported thereon bromine and a non-volatile acid.Type: GrantFiled: December 4, 1981Date of Patent: January 24, 1984Assignee: Takeda Chemical Industries, Ltd.Inventors: Toshio Aibe, Yoshio Tsutsumi, Katsuya Noguchi
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Patent number: 4414246Abstract: A method for protecting environment from volatile liquid chloride as exposed to the atmosphere, which comprises:spreading foamy particulates of styrene resin over the chloride,initiating a reaction between the resin and chloride at the interface to form a filmy product, andcovering the surface of the chloride to a substantial part with a layer comprising such product, thus blocking evaporation of the chloride to spread and contact with humidity in the atmosphere.Type: GrantFiled: May 3, 1982Date of Patent: November 8, 1983Inventor: Hiroshi Ishizuka
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Patent number: 4411074Abstract: The present invention relates to a process and apparatus for drying oil well cuttings. More particularly, the present invention relates to the direct thermal treatment of oil well drill cuttings whereby the cuttings will be freed from any excess liquid and removed for storage or disposal on site or bagging.Type: GrantFiled: September 4, 1981Date of Patent: October 25, 1983Inventor: Charles L. Daly
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Patent number: 4319410Abstract: A dryer system for treating oily solids, such as oil based drilling mud cuttings, into dry and oil-free solids and a liquid which includes recovered oil values. The system is a continuous feed, high vacuum, low temperature, distillation unit. An indirect heat exchanger may also be employed. The dry solids can be discharged continuously through a water standpipe, venturi type eductor or other continuous solids discharge arrangement. The dry solids are oil-free sufficiently to allow discharge into public waters without a rainbow effect. The recovered liquid includes the oil base and chemicals in a state permitting reuse directly in formulation of additional amounts of the oil based drilling mud, or other employment such as a fuel for heating the distillation unit.In one embodiment, the present dryer system is especially useful for installation on offshore drilling platforms.Type: GrantFiled: June 24, 1980Date of Patent: March 16, 1982Assignee: The Brandt CompanyInventors: Joe K. Heilhecker, David D. Schoeneman
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Patent number: 4314966Abstract: Acid drainage from exposed pyritic material such as coal mine tailings is reduced through the controlled application of anionic detergents which inhibit the bacterium Thiobacillus ferrooxidans. The controlled application of anionic detergent comprises an initial application of anionic detergent in sufficient quantities to satisfy the adsorptive capacity of clay or clay-sized particles overlying the pyritic material coupled with the application of an anionic detergent inhibitor of Thiobacillus ferrooxidans from a slow release matrix containing the inhibitor. The two applications are to intercept infiltrating water up-gradient of the pyritic material or strata. The amount of matrix employed is calculated in accordance with a described formula. The method can be used to reduce acidity in drainage from pyritic mine tailings, coal mines, coal refuse piles and construction sites at which acid drainage is a problem.Type: GrantFiled: September 12, 1980Date of Patent: February 9, 1982Inventor: Robert Kleinmann
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Patent number: 4222988Abstract: Method and apparatus for removing hydrocarbons from drill cuttings is disclosed. The method involves heating the contaminated drill cuttings at a pressure lower than atmospheric pressure, milling the cuttings to expose hydrocarbons trapped within agglomerates of the material, and separating the vapors thereby produced from the cuttings. The cleaned cuttings can be used or disposed of without damage to the environment. The vaporized hydrocarbons may be condensed and recovered.Type: GrantFiled: May 5, 1978Date of Patent: September 16, 1980Assignee: Oil Base Germany G.m.b.H.Inventor: Horst K. F. Barthel
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Patent number: 4162289Abstract: The present invention relates to filtering units or cartridges useful for avoiding environmental pollution resulting from the decomposition of corpses in cemeteries. The units or cartridges comprise a non-porous container with an inlet for gases at one end and an outlet duct having its entrance within and proximate the opposite end. Gases entering said container through the inlet pass through at least the greater part of said container before reaching the outlet. A plurality of selective filtering zones lie within said container selectively to operate on gases passing through the filter from the inlet to the outlet. These zones, which may be separated by separators, including an inert and porous material to act both as a filter for bacteria and as a layer to retain the remaining filtering material in position, a layer of acidic material to eliminate amines, a layer of a metallic sulphate to remove compounds containing sulphur and a final layer of activated charcoal located proximate the outlet.Type: GrantFiled: February 25, 1977Date of Patent: July 24, 1979Assignee: Internacional de Ciencia y Tecnologia, S.A.Inventors: Carlos R. Gomez, Horst Eller