Filter Is Most Upstream Patents (Class 55/327)
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Patent number: 6910245Abstract: An upright vacuum cleaner with a cyclonic airflow path includes a floor-engaging base unit, a body unit pivotally mounted to the base unit and a motor/fan assembly mounted on one of the base unit or body units. A dirt collecting enclosure is also mounted on the body unit and includes a first large chamber and a second smaller chamber. A filter unit is disposed in the first large chamber. Dirt laden air is introduced into the first large chamber in a tangential manner so as to impart a cyclonic action to the airflow. The filter in the first large chamber is effective for removing larger particles of debris from the airflow. The remaining airflow is communicated to the second chamber where smaller particles of debris are removed. Airflow from the second smaller chamber is then communicated through a cyclonic chamber disposed above and transverse to the dirt collecting enclosure, to a third chamber where a second filter is disposed.Type: GrantFiled: January 12, 2001Date of Patent: June 28, 2005Assignee: White Consolidated Industries, Inc.Inventors: Thomas Hawkins, Rich Eisenmenger, Len Hampton, Christer Kontio
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Patent number: 6663685Abstract: A filter assembly for collecting material that is entrained in a gas stream includes a housing for a filter element. The housing has first and second ends with an inlet and an outlet at the first end for the gas that is to be filtered, and a support surface on its internal wall at a point towards its second end. The assembly includes a tubular filter element arranged within the housing for the gas stream to flow through its wall between the inlet and the outlet. The element is located in the housing by way of a support which extends between the filter element at or towards its end and the support surface on the internal side wall of the housing on which the support rests.Type: GrantFiled: March 4, 2002Date of Patent: December 16, 2003Assignee: Domnick Hunter LimitedInventors: Kenneth Wright, Brian Lane, Stephen Nicholas Smith, Paul David Shaw, Alan Bateman
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Patent number: 6623631Abstract: There is disclosed a vacuum filtration device for aqueous media that includes a hydrophilic tubular filter element in a cylindrical housing and at least one hydrophobic gas-permeable membrane, coupled with a gas bleed-off valve to allow the escape of air entrained in the filtration medium.Type: GrantFiled: July 26, 2001Date of Patent: September 23, 2003Assignee: Sartorius AGInventors: Andreas Graus, Christian Schäfer
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Patent number: 6532620Abstract: An upright-type vacuum cleaner includes a cleaner body, a suction brush, cyclone dust collecting apparatus, and a filter. The cyclone dust collecting apparatus is removably disposed in a dust collecting chamber in the cleaner body. The suction brush draws air and contaminants from a surface to be cleaned into the cleaner body. The cyclone dust collecting apparatus induces the air and contaminants into a vortex to separate by centrifugal force large particle contaminants from the air and to collect the contaminants. The filter further filters fine contaminants from the air that is discharged from the cyclone dust collecting apparatus.Type: GrantFiled: March 14, 2001Date of Patent: March 18, 2003Assignee: Samsung Kwangju Electronics Co., Ltd.Inventor: Jang-Keun Oh
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Patent number: 6409786Abstract: A filter assembly for collecting material that is entrained in a gas stream includes a housing having inlet and outlet ports for the gas that is to be filtered. The housing includes an end cap in which at least one of the ports is provided, and a body section in which a tubular filter can be located arranged for the gas stream to flow through its wall provided by a filter medium, the end cap and the body section being separable to allow access to the inside of the housing. A tubular member, which might be a filter element or a conduit for directing a flow of gas to a filter element, can be sealingly connected to the end cap in fluid communication with one of the ports therein. The tubular member includes a tang which can be received in a recess in the housing when the tubular member and the housing end cap are properly assembled.Type: GrantFiled: August 28, 2000Date of Patent: June 25, 2002Assignee: Domnick Hunter LimitedInventors: Kenneth Wright, Brian Lane, Stephen Nicholas Smith, Paul David Shaw, Alan Bateman
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Patent number: 6368386Abstract: The present disclosure relates to systems and methods that use a hydrophobic medium to remove salt and moisture from the intake air of a gas turbine system. The disclosure also relates to systems and methods that use a two stage filtering process to remove particulate material, salt and moisture from the intake air of a gas turbine system. Particulate material is filtered from the intake air at a first stage air cleaner. Subsequently, salt and moisture are removed from the intake air at a second stage salt barrier located downstream from the first stage air cleaner. In certain embodiments, the second stage salt barrier uses a hydrophobic medium to remove salt and moisture from the intake air.Type: GrantFiled: July 10, 2000Date of Patent: April 9, 2002Assignee: Donaldson Company, Inc.Inventors: Benny Kevin Nelson, Mark Alan Gogins
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Patent number: 6340375Abstract: An improved air cleaner arrangement is provided. The preferred air cleaner is wedge shaped, and is constructed as a “no-housing” arrangement. The arrangement includes first and second end caps, with pleated media extending therebetween. The preferred arrangement includes an angled mounting flange, for mounting beneath the hood of a vehicle.Type: GrantFiled: May 8, 2000Date of Patent: January 22, 2002Assignee: Donaldson Company, Inc.Inventors: Rocco A. DePietro, III, Steven A. Carter, James K. Elfstrand
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Patent number: 6315536Abstract: A horizontal open drive scroll machine has a lubrication removal system located with the suction inlet of the scroll machine's outer housing. The lubrication removal system includes a funnel which directs the incoming working fluid to a position radially inward from the suction inlet defined by the scrolls. A fine mesh screen is located within the suction inlet of the housing to further aid in the removal of the lubricant from the working fluid being returned to the suction pressure chamber of the scroll machine.Type: GrantFiled: November 18, 1999Date of Patent: November 13, 2001Assignee: Copeland CorporationInventors: Todd DeVore, Jeff Huddleston
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Patent number: 6296680Abstract: An apparatus into which particulate material contents of rupturable bags may be charged for further handling including a hopper having an inlet into which the material may be charged, producing portions of settling and airborne particles of the material, and an outlet through which the settling portion of the material may be discharged, a first filtering unit having an inlet communicating with the hopper inlet, a second filter unit having an inlet communicating with an outlet of the first filter unit and means for producing an air flow from the hopper inlet and sequentially through the first and second filter units whereby the portion of airborne particles of the material is drawn by the air stream through the filter units for removing the airborne particles therein.Type: GrantFiled: January 24, 1995Date of Patent: October 2, 2001Assignee: The Young Industries, Inc.Inventors: Mary Reiner, Richard W. Ambs
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Patent number: 6187073Abstract: A filter arrangement includes a tubular first filter element having a first media pack defining a first open filter interior and an air flow outlet. The air flow outlet is in gas flow communication with the first open filter interior. A housing construction has a gas flow inlet and a gas flow outlet. The air flow outlet of the first filter element is in gas flow communication with the gas flow outlet. A coalescer filter element is oriented in the housing construction in fluid communication with the gas flow inlet. A tubular second filter element is oriented in the housing construction and has a second media pack defining a second open filter interior. The second open filter interior is in gas flow communication with the gas flow outlet.Type: GrantFiled: March 17, 1999Date of Patent: February 13, 2001Assignee: Donaldson Company, Inc.Inventors: Steven Scott Gieseke, Robert Allen Dushek
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Patent number: 6123751Abstract: The present disclosure relates to systems and methods that use a hydrophobic medium to remove salt and moisture from the intake air of a gas turbine system. The disclosure also relates to systems and methods that use a two stage filtering process to remove particulate material, salt and moisture from the intake air of a gas turbine system. Particulate material is filtered from the intake air at a first stage air cleaner. Subsequently, salt and moisture are removed from the intake air at a second stage salt barrier located downstream from the first stage air cleaner. In certain embodiments, the second stage salt barrier uses a hydrophobic medium to remove salt and moisture from the intake air.Type: GrantFiled: June 9, 1998Date of Patent: September 26, 2000Assignee: Donaldson Company, Inc.Inventors: Benny Kevin Nelson, Mark Alan Gogins
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Patent number: 6059851Abstract: An improved air cleaner arrangement is provided. The preferred air cleaner is wedge shaped, and is constructed as a "no-housing" arrangement. The arrangement includes first and second end caps, with pleated media extending therebetween. The preferred arrangement includes an angled mounting flange, for mounting beneath the hood of a vehicle.Type: GrantFiled: September 3, 1998Date of Patent: May 9, 2000Assignee: Donaldson Company, Inc.Inventors: Rocco A. DePietro, III, Steven A. Carter, James K. Elfstrand
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Patent number: 5925320Abstract: An air purification system comprises a housing, a generally S-shaped duct mounted within the housing, at least one blower mounted within the housing for circulating air through the system, and purification structure for removing contaminants from the air. The system preferably comprises two blowers, a master control switch for activating one of the blowers to circulate air through the filter, and a secondary control switch for activating the other blower and the UVC source to initiate a UVC purification process to further purify the filtered air.Type: GrantFiled: June 4, 1997Date of Patent: July 20, 1999Inventor: John P. Jones
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Patent number: 5626820Abstract: The invention features a clean room and a chemical air filter suitable for use in the air handling system of the clean room directly upstream of high-efficiency particulate air (HEPA) filters. The chemical filter is of the pleated filter type comprising an air permeable, relatively thick web of non-woven fibrous carrier material of pleated form. The web includes a matrix formed of a large multiplicity of synthetic fibers and is characterized in that activated carbon particles are distributed throughout the web, bound in the interstices of the matrix in a manner preventing loss to the air of particles in quantity substantially detrimental to the performance of the HEPA filter. The activated carbon particles are of the type selected to remove the predetermined gas-phase contaminant from the air from the source. The invention also features a non-off gassing filter casing that may easily be installed into existing clean room air handling systems.Type: GrantFiled: December 2, 1993Date of Patent: May 6, 1997Inventors: Devon A. Kinkead, Robert W. Rezuke, John K. Higley
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Patent number: 5610592Abstract: A first dust recovering part is disposed upstream in an air inlet passage from a fire detecting part. The air flow is deflected in the first dust recovering part so as to cause the dust to drop to separate from the air and to be recovered in a recovery area of the first recovering part. Farther downstream from the first dust recovering part, a second dust recovering part is arranged having a filter for recovering dust in the air which has passed through the first dust recovering part. Thus, clogging of the filter is avoided and erroneous operations caused by dust are more reliably reduced. As a result, the reliability of the fire detecting apparatus is improved.Type: GrantFiled: August 3, 1994Date of Patent: March 11, 1997Assignee: Nohmi Bosai Ltd.Inventor: Toshiaki Okazaki
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Patent number: 5603751Abstract: A gas filtration system which includes a primary separator for removing a majority of a particulate material from a gas stream. The primary separator discharges a filtered gas stream which retains a portion of the particulate material. The filtered gas stream from the primary separator is delivered to a secondary particulate source which introduces additional particulate material into the filtered gas stream to produce a conditioned gas stream containing primary and secondary particulate material. The output of the secondary particulate source is delivered to a secondary filter which removes the primary and secondary particulate material from the conditioned gas stream to output the resulting gas stream, substantially void of particulate material. The conditioned gas stream contains a minimum amount of particulate material necessary to achieve optimal efficiency and operating life within the secondary separator.Type: GrantFiled: June 2, 1995Date of Patent: February 18, 1997Assignee: Mac Equipment, Inc.Inventor: Ross A. Ackerson
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Patent number: 5597541Abstract: An apparatus for treating gas introduced into a vessel containing a particulate material at a temperature less than that of the gas in a manner so that said material reduces the temperature of the gas and the gas entrains at least a portion of the material. The entrained material is then separated from the gas and passed to a heat exchanger to cool the material while the separated gas is passed to a turbine to drive same. At least a portion of the exhaust gas from the turbine is passed to the heat exchanger in a manner to fluidize the material in the heat exchanger and the cooled separated material is returned back to the vessel.Type: GrantFiled: August 7, 1995Date of Patent: January 28, 1997Assignee: Foster Wheeler Energy CorporationInventor: John T. Tang
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Patent number: 5591243Abstract: A device for separating liquid particles from compressed air transported therthrough, to protect machine parts connected thereto. The device is simple to manufacture, easy to maintain and can be made of low-cost materials such as injection molded plastics. A cylindrical housing has an inlet and an outlet at opposite ends thereof for coupling into the installation. A plurality of cones are formed into a vertical pile and closely spaced from one another. Each cone has a concave deflector surface opening out towards the inlet and an orifice cut out at one point on the edge of the cone. The cones are mounted inside the housing and their edges fit closely against the inner wall surface of the housing so that the orifices of consecutive cones are offset 180.degree. apart.Type: GrantFiled: September 12, 1994Date of Patent: January 7, 1997Assignee: Col-Ven S.A.Inventors: Rafael A. Colussi, Nestor J. Venica
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Patent number: 5522909Abstract: An air filter device. The device includes a flat, closed top and an axially aligned open base larger in diameter than the top. Frusto conical filter media extends between the top and the base, the filter media having an axis aligned with the top and the base. An axially aligned, inverted cone extends from the flat, closed top toward the base.Type: GrantFiled: December 27, 1994Date of Patent: June 4, 1996Assignee: Purolator Products NA, Inc.Inventor: Clifford D. Haggard
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Patent number: 5503649Abstract: An air filter for an internal combustion engine has a housing with an interior chamber. The housing has housing walls at least one of which is in the form of a filter element. One of the housing walls has a suction opening for connecting the air filter to a suction channel of the combustion engine, wherein combustion air flows through the filter element into the interior chamber and from the interior chamber through the suction opening into the combustion engine. Air flow resistance elements are arranged in the interior chamber upstream of the suction opening. The air flow resistance elements are arranged in a first and a second row. The first and second rows are spaced apart from one another in the direction of flow of the combustion air. The air flow resistance elements of the first row of the second row are spaced laterally from one another to form gaps therebetween. The air flow resistance elements of the first row are positioned so as to be substantially aligned with the gaps of the second row.Type: GrantFiled: March 3, 1995Date of Patent: April 2, 1996Assignee: Andreas StihlInventor: Hans Nickel
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Patent number: 5458666Abstract: There is provided a filter element of an air cleaner unit of an open element type which prevents turbulent flow from arising to lower the air suction sound and avoid the loss of sucked air by the turbulent flow. In a filter element in which a major diameter side opening of a tapered cylindrical filter member with a zigzag shaped cross section is connected to a suction duct of an engine, a rectifying cone member for covering a minor diameter side opening by the root thereof is vertically mounted inside the minor diameter side opening so that its leading end is positioned at or near the end of the major diameter side opening of the filter element, and furthermore, the inner side of a suction duct connecting member formed at the major diameter side opening is shaped like an air funnel.Type: GrantFiled: November 25, 1994Date of Patent: October 17, 1995Inventor: Yoshihito Miyakata
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Patent number: 5413619Abstract: The blow off unit is an open top box with the front lower than the sides and back. A splash shield is placed at an angle at the back of the work area to deflect the blow off air stream and debris down into the collection filter. A space is left behind the splash shield to allow the blow off air to escape after it passes through the filter. The filter is a standard HVAC bag type air filter which hangs down into the box with its frame resting on the angle frame of the unit. A wire grill covers the filter for protection and to provide a place to lay parts. In use, the operator holds the part in the work area of the unit with one hand and blows the coolant and debris from the part down into the filter. The blow off compressed air is the only power source required for the unit. When the filter becomes dirty and/or saturated with coolant, it is replaced with a new one.Type: GrantFiled: February 7, 1994Date of Patent: May 9, 1995Assignee: Carrier CorporationInventors: Victor C. Volk, James L. Rumburg
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Patent number: 5406467Abstract: A ventilation system (18) for a motor vehicle light fixture (10) comprises a rubber tube (20) adapted for connection to the light fixture (10), a filter (22) positioned within the rubber tube (20), and a hollow insert (24) having a plurality of baffles (30) positioned within the rubber tube (20) and adjacent the end of the tube exposed to the atmosphere.Type: GrantFiled: August 1, 1994Date of Patent: April 11, 1995Assignee: Ford Motor CompanyInventor: Masoud Hashemi
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Patent number: 5053126Abstract: A device for separating liquid from a mixture of the liquid and a gas includes a separator tank having an interior surface. A baffle plate in the tank defines a first higher pressure space and a second relatively lower pressure space therein. The baffle plate has first, second and third edges. The first edge is sealably connected to the interior surface. The second edge has a first portion sealably connected to the interior surface and a second portion spaced from the interior surface and defining a slot therewith. The slot has a length and a width and is the only gas passage between the first and second spaces. The third edge is spaced from the interior surface. Mixture inlet means introduces the mixture into the first space. A liquid collection reservoir is provided at one end of the tank adjacent the third edge. The slot is of such a cross-sectional area that higher pressure mixture in the first space flows through the slot and is dispersed along the entire length thereof.Type: GrantFiled: February 28, 1990Date of Patent: October 1, 1991Assignee: Ingersoll-Rand CompanyInventor: Eugene Krasnoff
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Patent number: 5027642Abstract: A method to detect, measure or remove trace amounts of condensible vapors in compressed gases. The concentration of droplets detected, measured or removed may be as low as part per trillion. The compressed gas comprising a carrier gas and condensible vapors is discharged through a critical orifice in order to condense the vapors in the form of homogeneous droplets. The droplets are either detected, or their concentration measured or removed from the expanded carrier gas.Type: GrantFiled: October 13, 1987Date of Patent: July 2, 1991Assignee: American Air LiquideInventors: HorngYuan Wen, Gerhard Kasper, Donell Montgomery
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Patent number: 4865815Abstract: An in-line air purifier for removing water, oil and carbon monoxide from a compressed air stream comprises a two-stage assembly in which the first stage includes replaceable cartridges for promoting coalescence of water and oil into droplets and removing such droplets from the air stream. The dried air is then routed to a second stage where it is passed through a replaceable cartridge containing a bed of activated charcoal for removal of odor-causing matter, and then through a further replaceable cartridge containing a bed of catalytic pellets which function at room temperature to remove carbon monoxide. The resulting purified air is routed through a manually adjustable pressure regulator to a purifier outlet.Type: GrantFiled: June 1, 1987Date of Patent: September 12, 1989Assignee: La-Man CorporationInventors: Charles E. Martin, Kenneth W. Overby
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Patent number: 4677863Abstract: Apparatus and method steps for collecting sub-micron sized particles include a collection chamber and cryogenic cooling. The cooling is accomplished by coil tubing carrying nitrogen in liquid form, with the liquid nitrogen changing to the gas phase before exiting from the collection chamber in the tubing. Standard filters are used to filter out particles of diameter greater than or equal to 0.3 microns; however the present invention is used to trap particles of less than 0.3 micron in diameter. A blower draws air to said collection chamber through a filter which filters particles with diameters greater than or equal to 0.3 micron. The air is then cryogenically cooled so that moisture and sub-micron sized particles in the air condense into ice on the coil. The coil is then heated so that the ice melts, and the liquid is then drawn off and passed through a Buchner funnel where the liquid is passed through a Nuclepore membrane.Type: GrantFiled: March 25, 1985Date of Patent: July 7, 1987Assignee: The United States of America as represented by the United States Department of EnergyInventors: Don D. Gay, William G. McMillan
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Patent number: 4561868Abstract: A canister filter assembly (10) for use in a vacuum line for trapping particulates and liquids from fluid drawn through the vacuum line including a cupped shaped container portion (12) and a lid portion (14) disposed over the container (12) in sealing engagement therewith. The lid (14) includes a fluid inlet (28) and a fluid outlet (30). A filter assembly (16) including a hydrophobic filter (32) and a prefilter (34) filters the particles and aerosols from the fluids passing through the fluid outlet (30). A filter support (18) supports the filters (32, 34, 36) within the filter assembly (16) and includes a cap member (40) spaced below the prefilter (34). The cap member (40) includes an upwardly extending peripheral rim (42) perfecting a seal with the remainder of the filter support (18).Type: GrantFiled: July 2, 1984Date of Patent: December 31, 1985Inventors: Charles von Reis, Karlis Vizulis
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Patent number: 4540421Abstract: It is an object of the invention to provide a unit for discharging material, such as lengths of paper strip from an air stream. As shown in FIG. 1, a flow of air with suspended waste material enters, as illustrated by the arrow 1, along a duct 2. The flow is into an entry section 4 of a perforated duct 5 located within an outer casing 6 which forms an air duct. At the downstream end, the duct 5 leads into a bend section 7 which is perforated on the outside of the bend and at the sides. The flow of air or gas continues out of the open end 8 of the casing 6 as indicated by the arrow 9, while the suspended solid material is deflected by the bend section into a discharge duct 11, down which the solid material falls by gravity. The duct 11 is shown as including two pairs of optional isolating flap valves 12 so as to provide an air lock arrangement so that the air flow in the duct 11 is substantially zero.Type: GrantFiled: January 26, 1984Date of Patent: September 10, 1985Assignee: Matthews and Yates LimitedInventor: David J. Wilson
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Patent number: 4502871Abstract: Disclosed is a wax condenser for separating wax from an entrainer gas (or sweep gas) which is introduced into a sintering furnace and then pumped out in order to remove the wax from the furnace. The condenser includes a hot chamber and a cold chamber. Wax is removed by the condenser in three ways. After the entrainer gas enters the hot chamber of the condenser from the sintering furnace, it will pass through a heated filter. The heated filter will capture a large percentage of the wax present in the entrainer gas. The entrainer gas passes from the heated filter through a flow-restricting aperture which is located in a barrier separating the hot chamber from the cold chamber. This flow restricting aperture causes a pressure drop across the barrier. When the entrainer gas passes through the aperture, an expansion of the entrainer gas takes place due to the drop in pressure associated with the passing of the entrainer gas through the flow restricting aperture.Type: GrantFiled: February 1, 1983Date of Patent: March 5, 1985Assignee: GCA CorporationInventors: Ingar F. Andersen, Timothy W. Lutts, Eddie W. Lam
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Patent number: 4437867Abstract: A gas scrubber and/or mist eliminator for high-velocity gas in the range between about 1,000 to 2,500 feet per minute. The gas flows horizontally through a duct or conduit in which a plurality of generally vertical, high-voidage, fibrous, non-capillary, free-draining bodies are interposed. The gas both passes through and is deflected by the bodies and its mist and/or other components are captured and drained by the bodies. Reentrainment of the drained liquid flowing out of the bodies is prevented. The bodies may be arrays of rows of separate baffles or they may be mounted on vanes.Type: GrantFiled: August 23, 1978Date of Patent: March 20, 1984Inventor: Bernard J. Lerner
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Patent number: 4361423Abstract: A combination acoustical muffler and exhaust converter for use with internal combustion engines, comprising an elongated hollow cylinder adapted to be connected to a source of exhaust gas, screen means positioned at a plurality of longitudinally spaced locations within said cylinder for partitioning the cylinder into a plurality of chambers arranged in series flow relation with each other and with respect to the flow of exhaust gas through said cylinder, the screens having a silencing action on said exhaust gas, magnet means in one of said chambers for exerting a magnetic pressure on the gas passing therethrough to serve to separate ferrous particles from the exhaust gas stream, a packing material of mineral material, such as mineral wool, in another of said chambers for condensing moisture in said exhaust gas and for removing hydrocarbon therefrom, and a material such as a ceramic material of an extremely fine porous nature, in still another of said chambers for removing carbon monoxide from said exhaust gasType: GrantFiled: November 3, 1980Date of Patent: November 30, 1982Assignee: NKNInventor: Albert E. Nitz
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Patent number: 4348057Abstract: Dust generated in coal mining is removed by means of a blower having an exhaust fan which draws air through its intake opening from the face of the coal. The blower is provided with a first stage of closely-arranged small-diametered cylindrical-shaped individual centrifuges between its intake opening and the exhaust fan in which the dust-laden air spins as air is drawn therethrough and concentrates the dust in an annular surrounding portion which is separately drawn from the centrifuges through a conduit also evacuated by the exhaust fan. This conduit contains a sharply-reversing bend which effectively separates and discharges the dust into a collection chamber, e.g. a removable bin. A grid disposed ahead of the first stage of individual centrifuges prevents large size particles from entering the centrifuges; and a second stage of closely-arranged, similarly-operating individual centrifuges located in the conduit closer to the exhaust fan remove "fines" which were not discharged to the collection chamber.Type: GrantFiled: August 25, 1980Date of Patent: September 7, 1982Assignee: B & J Manufacturing CompanyInventors: Joseph A. Parenti, Malcolm J. Charles
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Patent number: 4244680Abstract: An improved vane compressor including a novel lubricating oil separator disposed within a discharge pressure chamber formed between the casing and the pump housing. The oil separator comprises a pair of fluid-traversable upper and lower plates disposed within the discharge pressure chamber, an oil separating element interposed between said upper and lower plates, which preferably has a reticulate or spongy structure having pores communicating with each other, and a hollow cylindrical guide element fitted in the casing in a fashion covering the inner peripheral wall of the discharge pressure chamber but a lower part thereof, said guide element having a depression formed in a peripheral surface thereof and defining a passage for guiding a gaseous medium toward the compressor outlet, whereby oil separation takes place at multiple places, resulting in high rate of oil separation.Type: GrantFiled: July 20, 1979Date of Patent: January 13, 1981Assignee: Diesel Kiki Co., Ltd.Inventors: Yutaka Ishizuka, Shinichi Kobayashi
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Patent number: 4213770Abstract: A pollutant separator having a cooling coil and a filter includes a scrubber device. The scrubber has a tube with holes in the walls thereof for the passage of fluid to and from a closed collection chamber. A series of spring biased balls within the tube serve as scrubber elements. Extending around part of the outside of the tube is a slidable spring-biased ring valve having a shoulder on which fluid pressure is exerted through a passage extending from inside the tube. The ring valve slides over some of the tube holes causing fluctuations in pressure within the scrubber unit to enhance vibratory, scrubbing motion of the balls contained therein.BACKGROUND OF THE INVENTIONThis is a continuation-in-part of my copending application, Ser. No. 764,707, filed Feb. 1, 1977 now abandoned, which is in turn a continuation of my abandoned application, Ser. No. 566,608, filed Apr. 8, 1975, which was a continuation-in-part of my application Ser. No.Type: GrantFiled: April 2, 1979Date of Patent: July 22, 1980Inventor: John W. Schaefer
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Patent number: 4201557Abstract: An apparatus for separating particulate matter entrained in a gas, as air, from the gas. The apparatus has a housing surrounding a separation chamber. A vane assembly carrying a cylindrical bowl is secured to an upper portion of the housing. The vane assembly has a plurality of circumferentially spaced inclined vanes providing air inlet passages open to the separation chamber for directing the gas and particulates entrained in the gas in a circular motion in the separation chamber. A stack mounted on the bowl forms an annular chamber above the vanes in communication with the inlet of the passages formed by the vanes. An open mesh screen surrounds the annular chamber. An impeller assembly located in the lower portion of the separation chamber has a plurality of arms carrying paddles. The paddles are located in an annular discharge or exit chamber in communication with the lower portion of the separation chamber.Type: GrantFiled: October 24, 1978Date of Patent: May 6, 1980Inventor: Ross K. Petersen
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Patent number: 4157902Abstract: An improved air cleaner designed for insertion in the air intake conduits of over-the-road vehicles, to have the same diameter as the conduits, and to be readily replaceable as a unit. The invention particularly includes an air-permeable member which tapers, in combination with streamliners for improving the flow of air through the device.Type: GrantFiled: December 7, 1977Date of Patent: June 12, 1979Assignee: Donaldson Company, Inc.Inventor: Joseph C. Tokar
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Patent number: 4087263Abstract: To provide only dry steam to a steam appliance, under controlled conditions, a housing block is formed with steam inlet and outlet flanges or the like, a filter being removably located in the housing immediately behind the inlet and a control valve located in the housing immediately behind the outlet; the housing forms a space between the filter and the control valve to dry admitted steam, including a condensate collecting region at the bottom thereof which terminates in an outwardly accessible drain opening. The drying chamber formed by the housing is separated or subdivided into compartments by at least one impact or deflection plate against which the steam is guided in order to separate the drying chamber into a pre-drying and a post-drying chamber and efficiently remove moisture and water droplets from the steam introduced into the system.Type: GrantFiled: February 7, 1977Date of Patent: May 2, 1978Assignee: E. Schonmann & Co., Ag.Inventor: Fredi Schonmann, Jr.
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Patent number: 3987862Abstract: An improved intake hood for the air inlet pipe of the internal combustion engines of vehicles having a cab, the hood comprising a right angle conduit arranged to telescope over the inlet pipe so as to provide an annular chamber for trapping water. Internal clips are provided for supporting the hood on the inlet pipe, and the former is clamped at its bottom to the latter. The other end of the hood is cut off obliquely, so that the top overhangs the bottom, to minimize direct entry of falling rain and a screen is provided to keep out foreign bodies. This portion of the hood is to be directed horizontally for axial exposure to the air flow over the cab of the vehicle. The cross section of the hood is circular at the branch connected to the inlet pipe, and rectangular at the other branch, and the transistion piece therebetween is configured to maximize the separation of rain water from the air flowing through the hood.Type: GrantFiled: September 25, 1974Date of Patent: October 26, 1976Assignee: Donaldson Company, Inc.Inventor: James E. Lidstone
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Patent number: 3960525Abstract: A separator vessel shell is connected to receive a mixture of fluids produced from an oil well. An inlet structure is mounted within the shell and positioned to receive the flow stream of fluid mixture. The inlet structure includes a matrix of units, each of which provide a large surface area over which the fluid mixture passes in flowing through the matrix. The forces generated on the fluid mixture convert the energy in the flowing mixture and prevent the energy from shearing vapor bubbles in the mixture and forming additional foam.Type: GrantFiled: May 9, 1975Date of Patent: June 1, 1976Assignee: Combustion Engineering, Inc.Inventor: Robert W. Coggins
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Patent number: RE33085Abstract: An apparatus for separating particulate matter entrained in a gas, as air, from the gas. The apparatus has a housing surrounding a separation chamber. A vane assembly carrying a cylindrical bowl is secured to an upper portion of the housing. The vane assembly has a plurality of circumferentially spaced inclined vanes providing air inlet passages open to the separation chamber for directing the gas and particulates entrained in the gas in a circular motion in the separation chamber. A stack mounted on the bowl forms an annular chamber above the vanes in communication with the inlet of the passages formed by the vanes. An open mesh screen surrounds the annular chamber. An impeller assembly located in the lower portion of the separation chamber has a plurality of arms carrying paddles. The paddles are located in an annular discharge or exit chamber in communication with the lower portion of the separation chamber.Type: GrantFiled: May 11, 1988Date of Patent: October 10, 1989Inventors: Ross K. Petersen, Raymond E. Franzen