Annular Screen Above Or Surrounding Comminuting Zone Patents (Class 241/74)
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Patent number: 5096127Abstract: An apparatus, for pressurized screening of a fiber/liquid suspension to separate the fibrous fraction into an accepts portion and a rejects portion, has a housing having an inlet with a heavy and large material trap, an accepts outlet, a rejects outlet, and a dilution liquid inlet. A hollow cylindrical screen having an open top and bottom communicates with the fibrous suspension inlet chamber and the rejects outlet chamber. Accepts fibers in the suspension pass through apertures in the screen to the accepts chamber and are discharged through the accepts outlet. Rejects discharge through the rejects chamber. A rotor having at least four regions, a closed top, and a bottom mounted drive mechanism is coaxially mounted within the screen. Hydrodynamic pulses are induced in the suspension in the screening region by a pattern of bumps and/or depressions impressed upon the rotor surface.Type: GrantFiled: August 22, 1990Date of Patent: March 17, 1992Assignee: Ingersoll-Rand CompanyInventor: Douglas L. G. Young
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Patent number: 5085376Abstract: An apparatus for grinding and mulching landscape debris includes a plurality of cylindrical chambers of different sizes. A first intake chamber has an opening through which the landscape debris is inducted into the apparatus. A second, larger diameter cutting chamber is connected to and is concentric with the intake chamber. A plurality of cutting blades chop the landscape debris which is present in the cutting chamber. A third, still larger hammer chamber is connected to and is concentric with said cutting chamber. The hammer chamber includes a plurality of free-swinging hammers which grind the landscape debris to a size which can exit through a perforated grinding ring which surrounds the hammer chamber. A blower chamber surrounds the perforated grinding ring, the blower chamber including a plurality of rotating fan blades which force air out of an exit opening in the blower chamber, thus creating a partial vacuum in the hammer chamber.Type: GrantFiled: May 6, 1991Date of Patent: February 4, 1992Assignee: Tolle Mfg. Co., Inc.Inventor: John L. Litchenburg
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Patent number: 5071078Abstract: An apparatus for metering and grinding friable material has a metering screw and a beater formed of a plurality of bars which are integral with a downstream end of the metering screw. The bars are positioned parallel to the longitudinal axis of the metering screw, at apexes of a regular polygon centered on the longitudinal axis of the metering screw. A cylindrical housing surrounds the metering screw, and a cylindrical screen at least partially surrounds the beater.Type: GrantFiled: October 9, 1990Date of Patent: December 10, 1991Assignee: Nestec S.A.Inventor: Marcel Buhler
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Patent number: 5067926Abstract: A meat deboning sieve (A) is disclosed which includes a plurality of sieve plates (10, 10') stacked together in a sieve assembly (15). Radial grooves (B) in the sieve plates are machined along a radial center line of the assembly to define radially aligned slots (D,D') in sieve (A) when stacked and compressed together in a unitized construction. A bonding agent (62) bonds mating surfaces (64) together to eliminate any voids and accumulation of bacteria. A hardness coating (48) reduces friction reducing the temperature of the meat product and energy consumed.Type: GrantFiled: April 5, 1990Date of Patent: November 26, 1991Inventor: James B. Richburg
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Patent number: 5048765Abstract: A paper material refining apparatus has a tank the space in which is divided by a drum-type screen plate into a primary chamber and a secondary chamber, and a material supply pipe for supplying the paper material and a drum-shaped rotor for rotating the material are disposed in the primary chamber. The drum-type rotor is disposed such that its peripheral surface opposes the drum-type screen plate, with the top plate thereof facing the open end of the material supply pipe. The drum-type rotor is provided with step-like projections on the outer peripheral surface thereof. Foreign matters contained in the paper material such as metal pieces are struck by the top plate of the rotor and displaced radially outward by the centrifugal force.Type: GrantFiled: August 31, 1990Date of Patent: September 17, 1991Assignee: Satomi Seisakusho Co., Ltd.Inventor: Hitoshi Satomi
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Patent number: 5034035Abstract: Arranged in the upper region of a drum which rotates about an axis there is a dust box for dust removal. The box is connected with a line, which leads outwards, by way of a laterally arranged discharge channel. Arranged between the dust box and a baffle rotor which rotates about the axis are baffle areas which form labyrinth-like passages for the dust to the dust suction openings in the dust box.Type: GrantFiled: December 6, 1990Date of Patent: July 23, 1991Assignee: George Fischer AGInventors: Franz Satmer, Ernst Trondle
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Patent number: 5025993Abstract: A grain grinding system includes a polishing machine for polishing grains, and roll mills and sifters for repeatedly mill and sift the polished grains to provide a flour having a desired mesh size. A moisture adding device is provided for adding moisture to the grains milled in at least one of the roll mills, thereby maintaining the grains in a suitably moistened condition during the milling operation.Type: GrantFiled: April 25, 1989Date of Patent: June 25, 1991Assignee: Satake Engineering Co., Ltd.Inventor: Toshihiko Satake
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Patent number: 5018674Abstract: A rotary hammer grinding mill having the rotary hammer rotor exposed in a housing between a material inlet and a ground material outlet in which the grate assembly on the outlet side of the rotor is composed of a series of spaced cradle ribs curving around the outlet side of the rotor and supporting a series of spaced bars directed transversely to the cradle ribs. The cradle ribs and bar spacing defines a series of openings having short passages offering greatly reduced resistance to the flow of ground material so there is substantially established a down-draft operation of the mill without the need to connect up a suction fan to the mill outlet.Type: GrantFiled: July 20, 1990Date of Patent: May 28, 1991Inventor: Robert M. Williams
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Patent number: 4978078Abstract: A discoid element (7, 8) for a helical screw or worm arrangement comprising, on each side, identical shallow depressions (20); each depression having an open end (21) adjacent the periphery and a closed end (22) adjacent a central bore (23). The depressions (20) in one side of the discoid element are staggered with respect to those of the other side. The discoid element may also contain radial ribs (24, 25, 26, 27) constituting the sidewalls of the shallow depressions. The discoid elements may suitably be used in apparatus for dehusking grain.Type: GrantFiled: August 29, 1989Date of Patent: December 18, 1990Inventor: Laszlo Vadnay
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Patent number: 4967968Abstract: A machine comprising a cylinder, a mixer and a plurality of glass balls, the cylinder including perforated walls having an upper part modelled to accept a shaft and fastened on the bottom end to the shaft which conveys the movement originated by an engine to the cylinder. Inside the cylinder, the mixer is integral with another shaft which is co-axial with the first shaft, the mixer being stationary with respect to the cylinder or driven by a separate engine which may rotate in the same direction or in the opposite direction with respect to the movement of the cylinder shaft.Type: GrantFiled: January 6, 1989Date of Patent: November 6, 1990Inventor: Renato Vitelli
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Patent number: 4919340Abstract: A method and apparatus for fiberizing feed stock in the form of shreds or the like to form a low density cellulosic product. The shredded feed stock is fed to a material handling rotor that functions as a centrifugal blower. The apparatus includes a housing that defines a cylindrical rotor chamber formed about a horizontal axis and a volute-shaped internal passage having at least one convolution formed around the rotor chamber. Located within the housing is a cylindrical screen with perforations that open into the rotor chamber. The centrifugal blower rotor is mounted in the rotor chamber and has a plurality of radial vanes with rakes attached to the outer ends closely spaced from the inner surface of the screen so that they continuously wipe pass the perforations to prevent clogging or blinding.Type: GrantFiled: February 15, 1989Date of Patent: April 24, 1990Assignee: Advanced Fiber Technology, Inc.Inventor: Milton Gerber
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Patent number: 4911828Abstract: A sorting apparatus for sorting fiber suspensions heavily laden with rubbish and other contaminants, which sorter has two successive sorting units each having a ring-shaped strainer space, which are likewise successive, and an accepts space with a rotationally symmetric strainer between the accepts space and strainer space. The first sorting unit is pressurized above atmospheric pressure; diluting water is fed to the second unit strainer space; and a rotating plate is mounted between the first and second sorting units to control the flow between the strainer spaces.Type: GrantFiled: June 12, 1989Date of Patent: March 27, 1990Assignee: J.M. Voith GmbHInventors: Walter Musselmann, Reimund Rienecker, Herbert Kinzler
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Patent number: 4907750Abstract: A hammermill in which the housing is a dust leakage free integral bonded together assembly of plates including spaced apart front and back or rear plates between which are disposed side plates whereby the hammermill chamber is defined, a hammer carrying rotor removably mounted within the hammermill chamber and secured for ease of removal from its drive shaft that is journaled by a single bearing arrangement mounted in the housing rear or back plate for insuring smooth running even after wear, a screen arrangement removably mounted within the housing hammermill chamber radially outwardly of the rotor, centered with respect thereto and providing a high screen area to horsepower ratio, with the screen being segmented to define two major screen sections that are removably seated against annular and congruently aligned rings that are affixed to the respective housing front and rear walls, with the rotor mounting the hammermill hammers in the usual groups about the axis of same, but by way of a removable pin for eaType: GrantFiled: March 9, 1988Date of Patent: March 13, 1990Assignee: Prater Industries, Inc.Inventor: Horst H. Seifert
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Patent number: 4896835Abstract: A screening machine has a rotating screening drum for screening dirt or other material to a desired size through the screen openings, and is made so that it reduces clogging of the screen, even when rocks, dirt clods, and moist dirt is being screened. The rotating drum has interior brushes and a beater bar for keeping the material moving on the interior of the drum. A holding bin and feeding conveyor is used at the input end of the machine and is positioned to empty into an input pulverizer or shredder, that has a powered drum that will break the dirt clods up. The holding bin has a cover grate to remove excessively large rocks and the like. The output from the pulverizing roller also drops material onto a grate through which the material passes before reaching the screening drum. These grates are called "grizzly bars" and help in the classification process. The screening drum can be converted to a mixer drum by lining the screen wall with sheet metal and removing the normally used interior brushes.Type: GrantFiled: June 30, 1989Date of Patent: January 30, 1990Inventor: Harley D. Fahrenholz
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Patent number: 4840119Abstract: A tomato-squeezing device includes a bowl-shaped container for collecting the juice, in which a motor-driven basket having a perforated peripheral wall and entrainment formations in the form of curved blades on its base wall is rotatably mounted. A shaped cover intended for insertion into the basket has a system of lateral and base walls which define, in addition to an inner waste-collection chamber, a squeezing duct converging generally from an entry region with a duct for the supply of the tomatoes to be squeezed towards a terminal region having an aperture which communicates with the waste-collection chamber.Type: GrantFiled: July 27, 1988Date of Patent: June 20, 1989Assignee: Girmi S.P.A. Corso MatteothInventor: Carlo Caldi
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Patent number: 4824028Abstract: A shredder (1) is surrounded by a revolving screen (3) which also acts as an elevator. Said shredder outputs the shredded material in the interior of said screen (3), which allows the exit of the smaller material through the holes and lifts the remaining material depositing it once more at the input of the shredder (1). According to the present invention the bottom surface of the drum faces a fixed wall (8) placed at such a distance that it determines the third dimension of the material which passes through.Type: GrantFiled: January 4, 1988Date of Patent: April 25, 1989Assignee: Satrind S.r.l.Inventor: Fabio Rota
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Patent number: 4824027Abstract: A meat separating machine for separating meat from a feed material which has an appreciable bone content. The machine includes a foraminous cylinder or screen in which a conveying auger rotates. Feed material is introduced under compression into the infeed end of the cylinder/auger combination. The auger conveys the meat material to the discharge end of the combination. During such conveyance, meat is separated from the bone and exudes through the foramina as de-boned meat. Compacted residue high in bone content discharges through a restricted discharge orifice at the discharge end of the cylinder/auger combination. The flights on the auger have an outer diameter on the infeed end which has substantial radial clearance in the neighborhood of 0.25 inch with respect to the inner diameter of the cylinder. The auger flights taper outwardly toward the discharge end where the radial clearance is from about 0.010 and 0.025.Type: GrantFiled: October 13, 1987Date of Patent: April 25, 1989Assignee: The Kartridg Pak Co.Inventors: Jimmie Shaw, Charles R. Brooker
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Patent number: 4813617Abstract: A wet grinding machine which includes a grinder head, an annular stator having a mounting portion mounted on the grinder head and joined by a body portion to a skirt portion, and a rotor rotatably mounted on the grinder head. The rotor includes a hub portion joined by an annular body portion to an annular skirt portion inside of the annular stator. Outwardly extending slots in the body portion of the rotor define shearing blades in the body portion. Outwardly extending shearing slots in the body portion of the stator are opposed to the shearing blades. Each of the shearing slots slopes and overlaps at least one adjacent shearing blade. As the rotor turns, each of the blades is constantly opposed to and addresses at least one of the shearing slots. There are inlet openings in the stator skirt and in the rotor skirt.Type: GrantFiled: June 17, 1988Date of Patent: March 21, 1989Inventors: Arthur C. Knox, Jr., Anthony Witsken
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Patent number: 4798345Abstract: In a hammer breaker for breaking and crushing scrap material, particularly scrap metal, in which a hammer rotor having a plurality of hammers pivotally mounted thereon is rotatably mounted about a horizontal axis in a housing having an inlet for the material to be broken and crushed, and an outlet for broken and crushed material at the top of a shaft which is located above the hammer rotor and is arranged to receive material tangentially from the rotor, the outlet being covered by a classifying grate which extends across the top of the shaft, the grate is mounted adjustably, preferably pivotably, relative to the shaft. This enables the effective size of the grate openings through which the broken and crushed material can escape to be adjusted according to the size and density of the scrap lumps required without having to change the grate.Type: GrantFiled: September 21, 1987Date of Patent: January 17, 1989Assignee: Lindermann Maschinenfabrik GmbHInventor: Manfred Adolph
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Patent number: 4773599Abstract: A series of screens for use with a size reduction machine have a tapered apertured wall formed into a frusto-conical shape, with an open wide end and a narrow closed end. All screens of a particular series have a cylindrical section, the same interior depth, outside diameter and angle of the tapered wall. Despite variations in the material wall thickness, screens of the same series are interchangeable on a size reduction machine and the gap can remain constant without any adjustment to the impeller. Further, a size reduction machine has means external to the machine providing for infinite adjustments to the gap. With previous machines, each time that a screen of a different thickness was used, it was necessary to make an adjustment to the gap in order to maintain the same gap. Further, when an adjustment to the gap is required, that is accomplished by removing the screen and impeller from the machine and inserting spacers onto the shaft.Type: GrantFiled: March 27, 1986Date of Patent: September 27, 1988Assignee: Quadro Engineering IncorporatedInventors: Daniel N. Lynch, Jupiter Muntean
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Patent number: 4768722Abstract: A series of screens for use with a size reduction machine have a tapered apertured wall formed into a frusto-conical shape, with an open wide end and a narrow closed end. All screens of a particular series have a cylindrical section, the same interior depth, outside diameter and angle of the tapered wall. Despite variations in the material wall thickness, screens of the same series are interchangeable on a size reduction machine and the gap can remain constant without any adjustment to the impeller. Further, a size reduction machine has means external to the machine providing for infinite adjustments to the gap. With previous machines, each time that a screen of a different thickness was used, it was necessary to make an adjustment to the gap in order to maintain the same gap. Further, when an adjustment to the gap is required, that is accomplished by removing the screen and impeller from the machine and inserting spacers onto the shaft.Type: GrantFiled: March 27, 1986Date of Patent: September 6, 1988Assignee: Quadro Engineering IncorporatedInventors: Daniel N. Lynch, Jupiter Muntean
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Patent number: 4759507Abstract: A series of screens for use with a size reduction machine have a tapered apertured wall formed into a frusto-conial shape, with an open wide end and a narrow closed end. All screens of a particular series have a cylindrical section, the same interior depth, outside diameter and angle of the tapered wall. Despite variations in the material wall thickness, screens of the same series are interchangeable on a size reduction machine and the gap can remain constant without any adjustment to the impeller. Further, a size reduction machine has means external to the machine providing for infinite adjustments to the gap. With previous machines, each time that a screen of a different thickness was used, it was necessary to make an adjustment to the gap in order to maintain the same gap. Further, when an adjustment to the gap is required, that is accomplished by removing the screen and impeller from the machine and inserting spacers onto the shaft.Type: GrantFiled: March 27, 1986Date of Patent: July 26, 1988Assignee: Quadro Engineering IncorporatedInventors: Daniel N. Lynch, Jupiter Muntean
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Patent number: 4705055Abstract: A method and apparatus are disclosed for automatically cleaning extrusion screens in finishing machines of a type having a generally cylindrical perforated screen arranged in a housing, juice or the like laden with solids being introduced into the interior of the screen and urged against the screen by a screw element, paddle assembly, or the like to cause the juice to flow through the screen with the solids being retained on the screen. The cleaning method and apparatus comprise a cleaning unit with a plurality of spray nozzles arranged about the screen, the cleaning unit being moved back and forth along the screen by a reversing motor additionally controlled by suitable limit switches. The method and apparatus of the invention are preferably adapted for causing relatively increased cleaning action adjacent a solids outlet end of the screen to better remove larger amounts of juice solids or pomace deposited on that portion of the screen.Type: GrantFiled: November 27, 1985Date of Patent: November 10, 1987Assignee: Brown International CorporationInventors: Robert F. Rohm, Ronald C. Bushman
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Patent number: 4685626Abstract: The invention concerns a mechanical separation head intended particularly for the treatment of crushed carcases and machine which is equipped with it. In such a separation head (100), and thus in the machine equipped with it, the drive under pressure against the grille (4) forming a sieve of the product to be treated is obtained by means of a vane (16) pump (P) serving at the connection of the crusher (18) and the head and which cooperates with a member (2) of which the double function is on the one hand to mash the product, and on the other hand to scrape the interior of the grille. Such a member (2) has a plurality of teeth (a,b,c . . . n) having a scraping surface (101), these teeth being spaced so that the totality of the internal face of the grille (4) is scraped. The invention is applicable to the treatment of any type of product having recoverable residual flesh such as animal carcases, fishbones, and shellfishes' shells.Type: GrantFiled: June 12, 1985Date of Patent: August 11, 1987Assignee: Les Innovations Mecaniques Alimentaires (S.A.R.L.)Inventors: Jean P. Kerdiles, Roger Marlot
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Patent number: 4681266Abstract: A method for producing particles having a controlled particle size from agglomerated material is provided. Agglomerated material is passed through a beater mill and subjected simultaneously to the beating action of a plurality of blades and a vigorous stream of air as the agglomerated material impacts the peripheral screen of the beater mill.Type: GrantFiled: January 21, 1986Date of Patent: July 21, 1987Assignee: Phillips Petroleum CompanyInventors: Ronald G. Mason, Emory W. Pitzer, Max P. McDaniel, David L. Rogers, James W. Waterman
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Patent number: 4663030Abstract: In screening apparatus for paper making stock including a housing, a cylindrical perforated screen member separating the interior of the housing into a supply chamber and an accepts chamber on the inside and outside respectively of the screen member, an inlet port for supplying stock to one end of the supply chamber, an outlet port from the accepts chamber, a reject port from the supply chamber, and a rotor mounted for rotation within the screen member, the rotor is characterized by comprising a substantially circular disk which is of a thickness constituting a very minor fraction of the axial length of the screen member and has vanes mounted on its outer periphery which extend lengthwise of the screen member for rotation with the disk in the annular space between the periphery of the disk and the inner surface of the screen member.Type: GrantFiled: April 15, 1986Date of Patent: May 5, 1987Assignee: The Black Clawson CompanyInventors: David E. Chupka, Mark W. Gilkey, Jimmy L. Winkler, Larry D. Markham
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Patent number: 4662893Abstract: A method and apparatus for hydraulically macerating and recovering soluble component from a solid material such as waste solid propellant that is semihard. The solid material is fed into a perforated enclosure where it is held until it is macerated such that it can pass through perforations in the enclosure. While held in the enclosure, the solid material is agitated and exposed to jets of liquid solvent under a pressure which is equal to at least about 1000 psig to thereby macerate the solid material and force it through the perforations and to dissolve soluble component such as ammonium perchlorate from solid propellant. In one embodiment, the propellant residue is conveyed to a residue discharge end of the apparatus by a sloping helical conveyor. The helical conveyor provides individual contact stages for counter-current extraction and washing of ammonium perchlorate from the residue with recycled solvent.Type: GrantFiled: October 11, 1984Date of Patent: May 5, 1987Assignee: Morton Thiokol Inc.Inventor: Meldon J. McIntosh
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Patent number: 4651935Abstract: A horizontal media mill comprising a cantilevered shaft extending from a motor into a vessel in which a rotor mounted on the shaft agitates a grinding media and the product being milled. A cup-shaped screen and a cup-shaped end cover fit over the free end of the rotor and are removably mounted on the end of the vessel. The screen filters the media from the milled product as the product flows to an outlet in the end cover. The rotor is of a one-piece polymeric construction and slides off the shaft to be removable when the screen is removed. The mill is tiltable to facilitate cleaning, and includes an integrated hydraulic system which tilts the mill, cools the vessel, drives the product pump, and provides pressure for a seal where the shaft enters the vessel.Type: GrantFiled: October 19, 1984Date of Patent: March 24, 1987Assignee: Morehouse Industries, Inc.Inventors: Paul E. Samosky, John J. Corrigan, Dale H. Morehouse, Edward J. Szkaradek
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Patent number: 4650125Abstract: The sorting apparatus contains a rotor equipped with blades or vanes which move along a screen or sieve located beneath the rotor. The screen forms a partial surface of a body of revolution, such as a partial surface or section of a cylinder. The fiber stock mass which has not moved through the screen is upwardly propelled into a turbulence chamber or space by the action of the rotor and again falls back onto such rotor or another rotor. A domed guide surface serves to guide the fiber stock mass.Type: GrantFiled: October 11, 1983Date of Patent: March 17, 1987Assignee: Escher Wyss GmbHInventor: Maurus Pellhammer
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Patent number: 4641792Abstract: The fiber depither consists of an upper array of feeder blades and a lower array of fan blades. These blades remove more particulate while resulting in less fiber damage.Type: GrantFiled: October 22, 1984Date of Patent: February 10, 1987Assignee: Process Evaluation and Development CorporationInventors: Eduardo J. Villavicencio, Jorge E. Arana
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Patent number: 4638954Abstract: Apparatus for the separation of mixtures of materials of different consistencies, such as meat and bone, or sewage containing solid material, comprises a positive displacement pump feeding the pressurized mixture to a separator which can be separate from the pump or an integral part of its structure. The pump comprises a rotary vaned pump with radially-moving vanes of fixed length operating with both their ends always in sealing engagement with the wall of an internal cam also constituting a wall of the pump chamber. The vanes are provided with cutting edges able to shear material such as bone that enters the pump, so that the pump is not jammed thereby.Type: GrantFiled: January 10, 1985Date of Patent: January 27, 1987Assignee: Poss Design LimitedInventor: Werner Poss
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Patent number: 4635860Abstract: A rotating grizzly having a downwardly slanting axis of rotation for reducing the size of agglomerated mineral particles comprising a rotatable framework made up from a series of spaced axial baffles interconnected by a series of parallel spaced bars wherein the baffles extend inwardly toward the axis of rotation a greater distance than the bars.Type: GrantFiled: May 24, 1982Date of Patent: January 13, 1987Inventor: Jan Kruyer
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Patent number: 4635862Abstract: A rotary granulator having a rotor positioned coaxially within a cutting chamber defined by a multi-perforate cylindrical screen mounted on an end plate with a fixed bed knife projecting into the cutting chamber in position to cooperate with a rotor knife in cutting up stock introduced axially into the cutting chamber through the end of the chamber opposite the end plate. The rotor includes a hub adjacent the end plate and at least two spaced rotor arms projecting from the hub parallel to the cutting chamber axis with the rotor knife mounted on a rotor arm. An annular rotor bearing member is mounted on the ends of the rotor arms opposite the hub within a fixed bearing member; the two bearing members comprise an outboard guide/support bearing for the rotor, affording support for the rotor but allowing unimpeded axial feed into the cutting chamber.Type: GrantFiled: May 17, 1984Date of Patent: January 13, 1987Assignee: Nelmor Co., Inc.Inventors: G. Allan West, William W. Barnes, Thomas J. Dumaine, Herbert K. Andrews
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Patent number: 4634060Abstract: A rotating drum on a carriage has one end portion constructed as a chopping chamber, the major part of the drum's periphery serving as a sieve. The interior of the drum is subjected to suction for the removal of floating components. Refuse components, which are not chopped nor removed by the sieve periphery of the drum, are discharged axially via a funnel. The unit is a mobile one.Type: GrantFiled: April 10, 1980Date of Patent: January 6, 1987Assignee: CMU-Gesellschaft fuer MaterialrueckgewinnungInventors: Hanns-Helmut Riemann, Heinz-Josef Skaletz, Hans Sonnenschein
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Patent number: 4632320Abstract: Apparatus for dissolving and sorting waste paper supplied in the form of bales, comprising a bale shredding device having a spray pipe for steeping water, a subsequent steeping drum driven about an approximately horizontal axis and followed by a mixing device for mixing the steeped waste paper with diluting water as well as a sorting drum also rotatable about an approximately horizontal axis. The circumferential wall of this sorting drum has openings in a first sorting area which are smaller than the openings in a second sorting area which follows the first sorting area in the direction of flow. A deflaking device is provided for the suspension passing through the openings of the second sorting area, the outlet of this device being connected to the mixing device via a pump.Type: GrantFiled: June 5, 1985Date of Patent: December 30, 1986Assignee: Hermann Finckh Maschinenfabrik GmbHInventors: Emil Holz, Hagen Hutzler
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Patent number: 4630780Abstract: Waste materials are introduced into an impeller-created vortex of water and reduced to a pulp wherein the impeller is provided with one or more blades constructed and arranged to cooperate with one or more stationary blades on a sieve surrounding the impeller. The impeller blades, stationary blades, and components of the sieve comprise readily removable and changeable components. The shear blades provide edges which periodically mate upon rotation of the impeller to provide a desired shearing action for the waste pulping machine. The shear members may readily and easily be removed when they become worn or damaged. The stationary shear blades are provided with a beveled edge in order to assists the flow of debris. The beveled edge reduces the likelihood of silverware or untensil becoming wedged between the impeller blades and the stationary shear blades.Type: GrantFiled: December 24, 1984Date of Patent: December 23, 1986Assignee: Somat CorporationInventors: Robert W. Immel, Evan P. Fields
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Patent number: 4619736Abstract: Cellulose pulp or recycled paper is defiberized, screened and pumped. Initial defiberizing, separation of non-disintegrated material, final defiberizing and pumping of the defiberized pulp are performed at a consistency of 6 to 18%, preferably 8 to 12%. Preferably all operations are performed at the same consistency. A defiberizing rotor is disposed in front of an impeller in the inlet of a centrifugal pump. A screen plate is mounted close to the defiberizing rotor. Defiberizing elements are arranged on the other side of the screen plate to move close to the screen surface.Type: GrantFiled: July 3, 1984Date of Patent: October 28, 1986Assignee: A. Ahlstrom OsakeyhtioInventors: Kaj O. Henricson, Pekka O. Peltola
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Patent number: 4605173Abstract: A size reduction machine for reducing the particle size of material, comprises a frame, an arm pivotally connected intermediate its ends to the frame, a counter weight movably connected to one end of the arm, a motor having a drive shaft mounted on the other end of the arm, an impeller connected to the free end of the motor shaft, an enclosure carried by the frame below the motor, the enclosure having fenestrated side walls and an open top for receiving the motor shaft and impeller, the motor and impeller being bodily movable into and out of the enclosure upon pivotal movement of the arm, and an adjustable stop positioned between the frame and the arm for limiting the maximum travel of the impeller into the enclosure.Type: GrantFiled: April 4, 1984Date of Patent: August 12, 1986Inventor: Harvey A. Edmonds
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Patent number: 4586658Abstract: For impact grinding a free-flowing feed material to a finished product of a narrow grain size range, particularly in the cereal and feeding stuff grinding industry, the feed material is fed to an impact or hammer mill (1) having a sieve jacket (33), wherein it is subjected to a first impact grinding phase, during which a first finished product passes through the sieve jacket (33), while a recirculation material component is withdrawn from the grinding chamber (34) through exhaust means (51) provided on the sieve jacket (33), said recirculation material component being fed to a grain size separator means (4) comprising a sieve screen (44) for separating further finished product from an oversize component which is to be returned to the impact grinding phase, preferably together with newly introduced feed material.Type: GrantFiled: October 5, 1984Date of Patent: May 6, 1986Inventor: Edwin Eisenegger
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Patent number: 4575899Abstract: A device for severing the meat adhering to bones from these bones has a press cavity provided with a press piston and a counter-piston, the mass of meat and bones introduced into the press cavity being pressed between said both pistons. Passage openings formed of a perforated filter are provided in the wall of the press cavity, noting that the meat having been brought into the pasty condition by the press pressure can pass through this openings, whereas the bones are retained. Both pistons have cylindrical sections and can be shifted in axial direction of the press cavity within this press cavity. The dimensions of the pistons are, as seen in radial direction, smaller than that of the press cavity. Both pistons have blunt, preferably slightly bomb-shaped front surfaces. One of the pistons releases during its retracting movement a discharge opening for discharging the pressed bones out of the press cavity.Type: GrantFiled: May 22, 1984Date of Patent: March 18, 1986Assignee: Inject Star Pokelmaschinen GmbHInventor: Otto Prosenbauer
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Patent number: 4570863Abstract: A wet grinding machine which includes a grinder head, an annular stator mounted on the grinder head, and a rotor rotatably mounted in the grinder head. Shearing blades on the rotor turn inside the stator and sweep across shearing slots in the stator. Each of the shearing slots slopes and overlaps adjacent shearing slots so that each of the blades is constantly addressing an inner edge of at least one of the shearing slots. A classifying screen chamber surrounds the stator but is independent of the grinding machine so that particles of reduced size can pass through the screen to be removed while larger particles are retained and sheared by the rotor blades against inner edges of the slots.Type: GrantFiled: January 10, 1983Date of Patent: February 18, 1986Assignees: C. Arthur Knox, Anthony WitskenInventors: Arthur C. Knox, Jr., Allan E. Hokanson, Anthony Witsken
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Patent number: 4566640Abstract: The disclosed machine is adapted to separate meat and other soft components from bone and other relatively hard components of meat, fish and other food materials, pieces of which are dumped into a hopper containing a pair of overlapping, oppositely rotating left and right hand feed screws for feeding the pieces into overlapping pump bores in a pump casing. The pump bores are provided with oppositely rotating left and right hand pump screws for pumping the pieces along the bores to develop pumping pressure, whereby the pieces are forced into a hollow separator casing having a tubular tapering separator screen with a multiplicity of perforations therein. A tapered pressure auger is rotatable in the screen for pressing meat and other soft components through the perforations while transporting bone and other hard components past the screen to a discharge device for discharging the hard components while maintaining pressure in the separator casing.Type: GrantFiled: January 18, 1984Date of Patent: January 28, 1986Assignee: Beehive Machinery, Inc.Inventors: Archie R. McFarland, Bruce L. Preece
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Patent number: 4560572Abstract: Individually separated juice-bearing vesicles are provided by processing citrus fruit having clusters of juice-bearing vesicles within natural enclosures. Extra-gastric digestion may be employed to expose these clusters. A slurry is then formed including exposed clusters of juice-bearing citrus fruit vesicles, and such slurry is propelled in countervailing first and second streams until the clusters are broken up into discrete juice-bearing vesicles.Type: GrantFiled: October 24, 1983Date of Patent: December 24, 1985Inventor: Sharkey Watanabe
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Patent number: 4546927Abstract: An improved machine for separating meat from meat feed material having a substantial content of sinews or sinew-like material and being essentially free of bone particles larger than bone slivers, and wherein such a meat feed material is fed into one end of a foraminous cylinder in which an auger rotates at relatively high speed and fluidized meat separated from sinews, sinew-like material and bone slivers extrudes through the foramina while sinews, sinew-like material and bone slivers when present exit through a restricted discharge orifice, the improvement residing in a strip of flexible non-abrasive material being mounted on the crest of the auger flite so as to engage the interior of the foraminous cylinder and cut, and thereby free sinews or the like that may be lodged or trapped in the foramina.Type: GrantFiled: March 30, 1984Date of Patent: October 15, 1985Assignee: The Kartridg Pak Co.Inventors: James A. Bloome, Jimmie Shaw
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Patent number: 4516731Abstract: A deboning apparatus having an internal seal for the end of the auger comprising a circular flange having slots therein for directing fluids away from the seal. The end of the auger is supported in a bearing assembly held in place by a cap which is bolted to a flange on the auger housing and to spaced, opposed columns. There is also an extra flight on the opposite end of the auger near the exit end for the bone and the end of each flight has a square tip.Type: GrantFiled: September 30, 1982Date of Patent: May 14, 1985Assignee: Jack Prince, Inc.Inventors: Jack A. Prince, Bobby D. Standridge
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Patent number: 4513477Abstract: A method and apparatus for removing solid particles from a pasty mass, in particular for removing bone particles from a mass of meat particles, in which the mass is advanced through at least one slit-shaped channel defined between two walls spaced apart in parallel relation at least one wall being provided with apertures having a diameter smaller than the smallest of the largest dimension of the particles to be removed, and the spacing between the walls being smaller than the smallest of the largest dimension but larger than the largest of the smallest dimension of the particles to be removed. During the advancement of the mass through said channel a scraping action is exercised over the inner surface of the apertured wall by means of one or more scraping elements.Type: GrantFiled: November 7, 1983Date of Patent: April 30, 1985Assignee: Procom, B.V.Inventor: Gerardus H. J. Ketels
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Patent number: 4509697Abstract: A rotary drum screen which exhibits baffles with impact plates extending in the direction of the periphery and a diameter which makes it possible to break up the refuse beforehand through free fall. The upper edge of the impact plates can have a saw tooth contour and the cross section of the drum casing is a polygon, preferably an octagon. The rotary drum screen rotates at a rotational speed such that the centrifugal acceleration at the drum casing is preferably 50-70% of acceleration due to gravity.Type: GrantFiled: May 20, 1982Date of Patent: April 9, 1985Assignee: Mannesmann Veba Umwelttechnik GmbHInventors: Hanns-Helmut Riemann, Hans Sonnenschein, Heinz Skaletz
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Patent number: 4494611Abstract: An improvement is presented in an apparatus for processing soil for planting wherein a separator are provided for initially separating rocks and other large objects from soil prior to crushing thereof, the separator comprising a plurality of respectively upwardly and downwardly directed pins which cooperate in the removal of said rocks and other large objects from the soil. Also provided is a vertical rotatable power driven shaft centrally located in said apparatus wherein a plurality of radially extending arms are fixed thereto and are rotatable with the shaft. Some of said separating pins are fixed to the arms and some cooperating separating pins are fixed to a disc plate also mounted about said power driven shaft. A rotating plurality of discs crush said soil to reduce large particles and destroy weed seeds, insects, and larvae.Type: GrantFiled: February 11, 1982Date of Patent: January 22, 1985Inventor: Guillermo D. Alvarez
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Patent number: RE32531Abstract: A deboning apparatus of the type for effecting a separation of boney material from the meat portion of fish, fowl, or other animals, and includes an auger means that is arranged through an adjoining pressure housing and perforated housing, with the auger means being coupled to for direct drive by a motor, for effecting its rotation within the said housing to achieve this meat-bone separation; the auger means includes a motor coupling section that connects directly to the motor, and which section incorporates a thrust bearing for absorbing axial thrust generated during functioning of the apparatus, a pressure auger section that is disposed within the pressure housing, and which includes an infeed section for deposition of the bone laden material therein, and wherein significant pressure is developed upon said boney material prior to its being conducted to a conveying auger section located within the perforated housing of the apparatus, and wherein the bone and meat material are substantially separated, with saType: GrantFiled: August 10, 1979Date of Patent: October 27, 1987Assignee: The Kartridg Pak Co.Inventors: Nicholas R. Beck, Gordon C. Leonard, Jack A. Prince
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Patent number: RE33752Abstract: Apparatus for the separation of mixtures of materials of different consistencies, such as meat and bone, or sewage containing solid material, comprises a positive displacement pump feeding the pressurized mixture to a separator .Iadd.screen .Iaddend.which can be separate from the pump or an integral part of its structure. The pump comprises a rotary vaned pump with radially-moving vanes of fixed length operating with both their ends always in sealing engagement with the wall of an internal cam also constituting a wall of the pump chamber. The vanes are provided with cutting edges able to shear material such as bone that enters the pump, so that the pump is not jammed thereby. .Iadd.The pump is required to provide pressurization to the mixture of at least 70 Kg/sq. cm. (1000 p.s.i.), usually up to about 210 kg/sq. cm. (3000 p.s.i.Type: GrantFiled: November 28, 1988Date of Patent: November 26, 1991Inventor: Werner Poss