Cooperating Non-smooth Surface Characteristics Patents (Class 241/260)
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Patent number: 10532532Abstract: A shredder includes a feed screw that pushes the items to be shredded and compacted towards an opening in the shredder via a restrictor that includes a pipe portion leading to the opening in the shredder, the shredder includes a drive motor driving a miller screw which shreds the items to be shredded into acquired size against a cutter plate fastened to a cutter housing to form shredded items, and forces the shredded items into a press chamber.Type: GrantFiled: November 6, 2013Date of Patent: January 14, 2020Assignee: Danielsson Innovation ABInventor: Tomas Danielsson
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Patent number: 9546650Abstract: An example water-conducting household appliance, in particular dishwasher, comprising a motor-pump and a vibration-damping one-piece mounting for fixing the motor-pump to the appliance, the mounting having a through-hole for receiving the motor-pump is provided herein. The motor-pump has a housing comprising a mounting-section with a cylindrically shaped outer surface, and the through-hole has a circular cross-section adapted for receiving the cylindrically shaped outer surface of the motor-pump.Type: GrantFiled: December 20, 2011Date of Patent: January 17, 2017Assignee: Electrolux Home Products Corporation N.V.Inventors: Mats Lundberg, Luigi Salerno, Oliver Kleinert, Katherina Tzavella
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Patent number: 8893996Abstract: The present invention relates to an improved mill, and in particular to an improved mill having a drum with several blades that rotates within a housing having several bars affixed near the bottom of the housing. In one embodiment, the mill has a hopper for introducing feed into the housing and a motor assembly for turning the drum within the housing. Several bars are stationarily fixed within the housing. The drum has several blades spaced remote from a central shaft which are supported by a plurality of discs. Each disc has a plurality of holes there through. The blades have an ear at the end proximal the housing outlet to propel the milled feed from the mill. An internal path is provided wherein the feed is likely to make several passes between the blades and the bars, and is unlikely to short circuit within the mill.Type: GrantFiled: September 23, 2011Date of Patent: November 25, 2014Inventor: Nathan Braunschweig
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Publication number: 20140091163Abstract: The present disclosure provides a refining disc or a segment thereof, comprising a base composed of a cast iron and teeth composed of a metal carbide composite, which teeth protrude from the base, wherein the teeth are partially embedded in the base. A disc refiner comprising a first and a second disc composed of such discs or segments, said first and second discs being arranged such that the teeth of the first disc face the teeth of the second disc as well as a method of disintegrating a material using such as disc refiner are also provided.Type: ApplicationFiled: April 4, 2012Publication date: April 3, 2014Applicant: CELLWOOD MACHINERY ABInventor: Peter Ek
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Patent number: 8282031Abstract: This invention relates to the art of methods and apparatuses for grinding various materials into smaller particles; particularly, to those known in the art as pulverizing systems and devices. This invention provides methods and apparatuses for an improved disc mill assembly that utilizes a tapered flywheel and water jacket in conjunction with planar grinding disk cutting devices to create a tapered grinding channel.Type: GrantFiled: February 26, 2010Date of Patent: October 9, 2012Assignee: Reduction Engineering, Inc.Inventors: Robert Sly, Eric Gorham, Larry Baker
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Patent number: 8136750Abstract: A powder processing apparatus includes a main body portion having a cylindrical rotor rotating at a high speed, and a cylindrical stator arranged coaxially with the rotor, outside the rotor with a gap therebetween; a supply port provided at one end of the main body portion, and supplying a processing raw material into the gap together with an airflow; and a discharge port provided at the other end of the main body portion, and discharging, from the gap, a processed product obtained by spheroidizing the processing raw material between the rotor and the stator. In the inner peripheral surface of the stator, there are provided circumferential grooves orthogonally intersecting the axis line of the stator, or a spiral groove forming an angle of not less than 60 degrees and less than 90 degrees with respect to the axis line.Type: GrantFiled: May 25, 2010Date of Patent: March 20, 2012Assignee: Earthtechnica Co., Ltd.Inventor: Akinori Ueno
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Patent number: 8132749Abstract: To provide an electrophotographic toner pulverizing apparatus and an electrophotographic toner pulverizing method for preventing reduction in wear resistance of a rotor, a stator, and the like even in long-term pulverizing of toner. The electrophotographic toner pulverizing apparatus according to the present invention has a pulverizing chamber with at least a rotor and a stator disposed therein. The surface of at least one of the rotor and the stator has a chromium plated layer having Cr as a main component and containing Mg, Al, Si, Ti, Mn, Fe, and C elements.Type: GrantFiled: August 20, 2007Date of Patent: March 13, 2012Assignee: Ricoh Company, Ltd.Inventors: Kouji Noge, Nobuyasu Makino
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Patent number: 7793870Abstract: The invention relates to a method and a device for husking and degerminating grains of maize. The aim of the invention is to provide an efficient and simple degermination of maize. To this end, during a wet degermination process, cleaned maize is wetted, and then husked and degerminated, and directly supplied to the comminution stage.Type: GrantFiled: January 27, 2003Date of Patent: September 14, 2010Assignee: Bühler AGInventors: Othmar Gerschwiler, Walter Eugster, Urs Zwahlen
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Publication number: 20100084498Abstract: A cutter device for a crushing machine includes a rotary cutter base body and plural cutters. The rotary cutter base body is formed integral and has an outer peripheral side axially and equidistantly formed with plural annular ribs respectively provided with plural flat cut surfaces. Each flat cut surface is formed integral with a protruding fixing base with a fixing hole for locking each cutter on the fixing base. Each cutter body is formed with a cutting side disposed with at least four arcuate cutting edges extending toward the center to form a bulging portion, with the cross section of the cutter side formed with a double-curved surface for thickening the cutter to prolong its service life. The fixing bases are formed integrally with the rotary cutter base body to increase their strength.Type: ApplicationFiled: December 7, 2009Publication date: April 8, 2010Inventor: Yu-Chun CHANG
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Publication number: 20100037778Abstract: The grinding member for a device for grinding coffee comprises a grinder (9) with a grinding surface, forming a single co-molded block with a support (7) made of plastic material.Type: ApplicationFiled: November 7, 2007Publication date: February 18, 2010Inventor: Gianni Remo
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Patent number: 7624939Abstract: A kneader includes a casing with a papermaking material supply opening and a papermaking material outlet located below the papermaking material supply opening; at least first, second, third and fourth rotational shafts provided inside the casing; first blades attached to the first rotational shaft; second blades attached to the second rotational shaft; third blades attached to the third rotational shaft; and fourth blades attached to the fourth rotational shaft. The first rotational shaft and the second rotational shaft are located at the same height and are arranged parallel to each other, and the third rotational shaft and the fourth rotational shaft are located at the same height and are arranged parallel to each other. The third rotational shaft is located under the first rotational shaft and the fourth rotational shaft is located under the second rotational shaft, respectively.Type: GrantFiled: September 13, 2007Date of Patent: December 1, 2009Assignees: Nippon Paper Industries Co., Ltd., Aikawa Iron Works Co., Ltd.Inventors: Mitsuhiro Sugino, Takashi Onizaki, Isao Aoki, Hisashi Iwabuchi, Yoshihiko Aikawa
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Publication number: 20090224086Abstract: Cellulosic biomass is reduced to a micropowder with particles having average diameters below 5-10 micrometers with a significant fraction of the particles have diameters below 1 micrometer. Biomass (e.g., wood, agricultural waste or other plant materials) is first processed into pieces having a maximum diameter of about 10 mm. This is then dried to reduce its water content to no more than about 15% by weight and introduced into a disruptor which reduces the particle size to about 1 mm. Next the biomass is processed with a disc mill where edges of rotating discs travel along a groove pressing and squeezing the biomass, thereby breaking the biomass pieces into smaller and smaller particles. The resulting micropowder is extremely susceptible to enzymatic or chemical hydrolysis into constituent sugars. In addition, the micropowder can be suspended in an air stream and burned directly to provide heat to boilers and similar devices.Type: ApplicationFiled: March 12, 2007Publication date: September 10, 2009Applicant: BIOMASS CONVERSIONS, LLCInventor: Seiji Hata
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Publication number: 20090057454Abstract: A disc housing intended for refiners with refining discs rotating in opposed directions relative to each other is disclosed for mechanically disintegrating and working fibrous material. The disc housing surrounds the refining discs in an air-tight manner, and is provided with an outlet for the worked fibrous material. The inside of the disc housing alond its periphery is formed with a channel, which, as seen in the circumferential direction, has a continously increasing radius, which increases all the way to the outlet, which is located tangentially as a direct continuation of the channel.Type: ApplicationFiled: April 6, 2006Publication date: March 5, 2009Applicant: Metso Panelboard ABInventors: Orjan Ahlgren, Anders Mattsson
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Publication number: 20090026297Abstract: A powder based granules disintegrating and sizing device having a drive shaft in a horizontal direction inside a casing, a rotor fixed to the drive shaft, a sizing stator having an inclined surface a gap section A where the powder based granules settles being formed by the plate surface of the rotor and the inclined surface of the sizing stator, and a disintegrating and sizing section B being formed by the narrowest gap section between the circumferential edge of the rotor and the sizing stator. The drive shaft is supported in a cantilever fashion, the rotor is fixed to an open side end portion thereof, the sizing stator is installed over the whole circumference of the rotor, a raw material supply port is opened in the vicinity of the central portion of the rotor, and a product output port is opened in the vicinity of position directly below the rotor.Type: ApplicationFiled: February 26, 2007Publication date: January 29, 2009Applicant: NARA MACHINERY CO., LTD.Inventors: Yoshihiro Wakamatsu, Azusa Ichiki
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Patent number: 7478772Abstract: The present application discloses a recirculating crushing and grinding device for crushing and grinding liquid-like materials or materials that contain liquid, said device comprises a motor, a hopper, a crushing and grinding part and a material recirculating part. Said crushing and grinding part includes a coarse-crushing section and a fine-grinding section, said fine grinding section consists of a pair of grinding components, and said material recirculating part consists of a pump and recirculating ducts provided downstream of said crushing-grinding part. The present application also discloses a soybean milk maker employing said recirculating crushing-grinding device, and a method for crushing and grinding a recirculated material and a method for producing soybean milk. The equipment disclosed in the present invention is easy to manufacture, with the advantages of a low noise during operation and low energy consumption.Type: GrantFiled: December 16, 2005Date of Patent: January 20, 2009Inventor: Xuning Wang
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Publication number: 20090001205Abstract: A cutter device for a crushing machine includes a main body and plural cutter bodies. The main body is composed of plural rollers arranged continuously together. Each roller has its diametrical circumference formed with at least one flat cut surface formed integral with a cutter base with a fixing hole. Each roller has its diametrical circumferential side provided with a rib, and each cutter body has its cutting side disposed with four curved blade edges extending toward the center to form a projection, letting the cross section of the cutter body formed with a double-curved surface and thus thickening the cutter body and prolonging its service life. The cutter body can be secured on the cutter base by a fastener, convenient in disassembling and replacing the cutter bodies with new ones.Type: ApplicationFiled: June 26, 2007Publication date: January 1, 2009Inventor: Yu-Chun CHANG
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Publication number: 20080078853Abstract: A kneader includes a casing with a papermaking material supply opening and a papermaking material outlet located below the papermaking material supply opening; at least first, second, third and fourth rotational shafts provided inside the casing; first blades attached to the first rotational shaft; second blades attached to the second rotational shaft; third blades attached to the third rotational shaft; and fourth blades attached to the fourth rotational shaft. The first rotational shaft and the second rotational shaft are located at the same height and are arranged parallel to each other, and the third rotational shaft and the fourth rotational shaft are located at the same height and are arranged parallel to each other. The third rotational shaft is located under the first rotational shaft and the fourth rotational shaft is located under the second rotational shaft, respectively.Type: ApplicationFiled: September 13, 2007Publication date: April 3, 2008Applicants: NIPPON PAPER INDUSTRIES CO., LTD, AIKAWA IRON WORKS CO., LTDInventors: Mitsuhiro Sugino, Takashi Onizaki, Isao Aoki, Hisashi Iwabuchi, Yoshihiko Aikawa
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Patent number: 7152823Abstract: A disc mill assembly for a pulverizing system includes: a flywheel, a water jacket, two disc blades, and two ring clamps. In alternate embodiments, the disc mill assembly also includes: an air inlet to provide input air from an external air supply and an improved blade height adjustment mechanism. A disc blade is also provided. The disc blade is a single member with a central aperture that is the only through hole in the blade. Users may cost-effectively adopt a disposal versus sharpening policy for replacement of the disc blade. A method for controlling a temperature of material in a disc mill assembly having first and second disc blades is provided. The method includes: directing an adjustable input air stream, directing material to be ground, monitoring the temperature of the material, and controlling the air stream directing and/or the material directing in response to the temperature monitoring.Type: GrantFiled: April 7, 2003Date of Patent: December 26, 2006Assignee: King Machine and Tool Co.Inventor: William J. Kapper
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Patent number: 6630277Abstract: Coarsely crushed toner particles comprising at least a binder resin and a colorant are effectively pulverized by a mechanical pulverizer including a generally cylindrical rotor rotating about an axis and a stator surrounding the rotor with a minute gap from the rotor. Each of the outer wall of the rotor and the inner wall of the stator is provided with a plurality of grooves which extend generally in parallel with the rotation axis of the rotor and are formed of a wave-shaped plurality of projections and intervening recesses. Each recess on at least one of the rotor and the stator is provided with a flat-shaped bottom between a forward corner and a rear corner adjacent a forward slope and a rear slope respectively, with respect to the rotation direction.Type: GrantFiled: November 15, 2001Date of Patent: October 7, 2003Assignee: Canon Kabushiki KaishaInventors: Takeshi Naka, Momosuke Takaichi, Kiyoshi Kanai, Tsuneo Nakanishi
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Publication number: 20020030131Abstract: An apparatus for disintegrating or beating stalk-, stem- and/or sheet-type regenerative raw material that includes a stator and a rotor is provided. The stator is configured as a sieve drum on whose inner wall radially inwardly-directed, teeth-like projections are provided as disintegration tools. The rotor has a rotor hub and a plurality of radially outwardly-directed arms mounted on the rotor hub, a plurality of axially-directed support bars mounted to the ends of the arms, and a plurality of radially outwardly-directed disintegration tools mounted on the support bars.Type: ApplicationFiled: August 28, 2001Publication date: March 14, 2002Applicant: E.E. Schilling , Dagmar GaeseInventors: Ing E.E. Schilling, Dagmar Gaese, Josef Rickert
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Patent number: 6082644Abstract: A shredder for brushwood and the like (FIG. 1) has at least one shaft carrying a helically arranged array of cutting discs surrounding the shaft. The discs are individually fixed on lugs which are generally radial to the shaft. As the brushwood is fed along generally parallel to the shaft axis it is impacted by the cutter discs, acting against one another where two parallel shafts are employed, or between the discs and a surrounding chamber wall if only a single shaft is employed. The shredded material is further fed and exhausted through a delivery passage by a current of air induced both by the discs and also by fan vanes carried by the shaft. The advantage of the discs as cutters is that if and when worn or blunted, each can be adjusted angularly on its lug to present a fresh portion of its periphery for action, without it being necessary to immediately replace or re-sharpen it.Type: GrantFiled: August 18, 1998Date of Patent: July 4, 2000Assignee: Turner Developments, Ltd.Inventor: Anthony Leonard Turner
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Patent number: 6060102Abstract: A composition and method for preparing a food supplement. The composition consisting essentially of at least 70% by weight of an oil seed constituent, at least 8% by weight of an additional plant constituent and at least 4% by weight of yeast wherein oil seed constituent, additional plant constituent and yeast are prepared by blending and cutting for less than about 20 minutes at a temperature of less than about 100.degree. F. and in the presence of light of a wavelength not greater than that of red light and of an intensity not greater than that of a darkroom light to thereby inhibit oxidation of the components of the composition.Type: GrantFiled: April 7, 1999Date of Patent: May 9, 2000Assignee: Designing Health, Inc.Inventors: Udo Erasmus, Robert MacIntosh Collett
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Patent number: 6060101Abstract: A composition and method for preparing a food supplement. The composition consisting essentially of at least 70% by weight of an oil seed constituent, at least 8% by weight of an additional plant constituent and at least 4% by weight of yeast wherein oil seed constituent, additional plant constituent and yeast are prepared by blending and cutting for less than about 20 minutes at a temperature of less than about 100.degree. F. and in the presence of light of a wavelength not greater than that of red light and of an intensity not greater than that of a darkroom light to thereby inhibit oxidation of the components of the composition.Type: GrantFiled: April 7, 1999Date of Patent: May 9, 2000Assignee: Designing Health, Inc.Inventors: Udo Erasmus, Robert MacIntosh Collett
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Patent number: 6007860Abstract: A composition and method for preparing a food supplement. The composition consisting essentially of at least 70% by weight of an oil seed constituent, at least 8% by weight of an additional plant constituent and at least 4% by weight of yeast wherein oil seed constituent, additional plant constituent and yeast are prepared by blending and cutting for less than about 20 minutes at a temperature of less than about 100.degree. F. and in the presence of light of a wavelength not greater than that of red light and of an intensity not greater than that of a darkroom light to thereby inhibit oxidation of the components of the composition.Type: GrantFiled: April 7, 1999Date of Patent: December 28, 1999Assignee: Designing Health, Inc.Inventors: Udo Erasmus, Robert MacIntosh Collett
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Patent number: 6001401Abstract: A composition and method for preparing a food supplement. The composition consisting essentially of at least 70% by weight of an oil seed constituent, at least 8% by weight of an additional plant constituent and at least 4% by weight of yeast wherein oil seed constituent, additional plant constituent and yeast are prepared by blending and cutting for less than about 20 minutes at a temperature of less than about 100.degree. F. and in the presence of light of a wavelength not greater than that of red light and of an intensity not greater than that of a darkroom light to thereby inhibit oxidation of the components of the composition.Type: GrantFiled: April 7, 1999Date of Patent: December 14, 1999Assignee: Designing Health, Inc.Inventors: Udo Erasmus, Robert MacIntosh Collett
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Patent number: 5845855Abstract: A mechanical grinding apparatus of the present invention, which includes a rotor supported by a rotary shaft and having a plurality of grooves defined on the outer peripheral surface thereof and a liner inserted to the outside of the rotor so as to form a desired gap between the liner and the rotor and having a plurality of grooves defined on the inner peripheral surface thereof for grinding a substance to be ground in the gap, is characterized in that the grooves of at least one of the rotor and the liner incline in a direction preventing the flow of the substance to be ground with respect to a direction parallel with a rotary shaft. Since the mechanical grinding apparatus of the present invention can make a ground substance having a small particle size, no large particles mixed therein and a sharp particle size distribution width at a high efficiency, the grinding apparatus is preferably applicable to powder composed of resin or mainly composed of resin to be finely ground.Type: GrantFiled: November 18, 1996Date of Patent: December 8, 1998Assignee: Nisshin Flour Milling Co., Ltd.Inventors: Yukiyoshi Yamada, Satoshi Akiyama, Takahiro Ichikawa, Hideo Okabe
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Patent number: 5834048Abstract: A method for preparing a food supplement. The food supplement consisting essentially of at least 70% by weight of an oil seed constituent, at least 8% by weight of an additional plant constituent and at least 4% by weight of yeast wherein oil seed constituent, additional plant constituent and yeast are prepared by blending and cutting for less than about 20 minutes at a temperature of less than about 100.degree. F. and in the presence of light of a wavelength not greater than that of red light and of an intensity not greater than that of a darkroom light to thereby inhibit oxidation of the components of the composition.Type: GrantFiled: May 3, 1997Date of Patent: November 10, 1998Assignee: Designing Health, Inc.Inventors: Udo Erasmus, Robert MacIntosh Collett
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Patent number: 5813618Abstract: A continuous cylindrical wood pulp refiner comprising a rotor disposed in a housing having a plurality of structural members. At least one refining plate is mounted to a holder portion of each member such that the entire periphery of the rotor is exposed to refining plates. The pulp to be refined continuously flows axially along the periphery of the rotor. The members define two shells which are pivotally mounted to the refiner base such that the shells may be pivoted away from each other to provide access to the interior surface for changing the refiner plates. Each holder portion has a pair of bores which are parallel to the axis of the rotor. A cam portion of a cam shaft is disposed in each bore. Rotating the cam shaft causes the cam portion to engage the surface of the bore thereby moving the holder portion radially towards or away from the rotor whereby the gap between the refining plates and the rotor can be adjusted.Type: GrantFiled: November 28, 1995Date of Patent: September 29, 1998Assignee: Andritz Sprout-Bauer, Inc.Inventor: Stanley R. Prew
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Patent number: 5564635Abstract: According to the present invention there are provided a method and an apparatus capable of disintegrating used paper into long pulp fibers without tearing it mechanically. In the apparatus, a wall surface having an undulating section is formed on an inner side of a gas flow path, with a current of air having a velocity component parallel to the wall surface and a velocity component perpendicular to and striking against the wall surface is allowed to pass through the gas flow path. Finely cut used paper pieces are allowed to pass through the gas flow path while being carried by the air current. The parallel velocity component of the air current is set at 40 m or more. An impeller is mounted within a circular casing body having an inlet port and an outlet port, and undulating teeth are formed on the inner peripheral surface of the circular casing body. The used paper, which is sucked in from the above inlet port together with the air current, is cut beforehand into pieces.Type: GrantFiled: September 28, 1994Date of Patent: October 15, 1996Assignee: Kabushiki Kaisha Kobe Seiko ShoInventors: Mitsuo Terada, Satoshi Kiyose, Tetsuro Matsumoto, Hiroyuki Tanaka, Takeshi Inaba, Hisanori Shimakura, Hirokazu Shiota
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Patent number: 5390861Abstract: A method and apparatus for processing discarded rubber tires and rubber tire material to reduce the same to a pulverulent form of sufficient quality fiber the manufacture of other articles. Principally the rubber tire is subjected to repeated compression against the metal strand component of the tires thus causing the metal stranding to cut into or chew the rubber into a pulverulent form. During the processing of the rubber tire material it is broken down to the point that its constituents such as metal fibers and polymer fibers are separated therefrom. The pulverized rubber, together with its separated constituents may then be classified and the constituents separated for further use. The rubber tire processing apparatus incorporates an external housing structure and a rubber processing drum that is rotatable therein.Type: GrantFiled: July 20, 1993Date of Patent: February 21, 1995Assignee: National Rubber Recycling, Inc.Inventor: Raymond T. Bishop
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Patent number: 5360175Abstract: A refiner for the manufacture of cellulose pulp where the raw material is processed in a gap between two opposed refining members rotary relative one another, and where at least one of the refining members is supported on a rotary refiner shaft (2) driven by a motor (4). An intermediate shaft (3) is connected non-rotary to a first and, respectively, second coupling (6 and, respectively, 7) between the rotor shaft (5) of the motor (4) and the refiner shaft (2) for transferring the drive moment. For damping the torsion oscillations in the mechanically connected shafts (2, 3, 5), an outer pipe (8) stiff against torsion is provided concentrically with the intermediate shaft (3), and one end of the pipe (8) is rigidly connected to the first coupling (6) at one end of the intermediate shaft, and the other end of the pipe (8) is connected by means of a friction damper (9) to the second coupling (7) at the other end of the intermediate shaft.Type: GrantFiled: September 27, 1993Date of Patent: November 1, 1994Assignee: Sunds Defibrator Industries AktiebolagInventor: Olof G. Kjellqvist
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Patent number: 5269476Abstract: An apparatus for comminuting commercial and industrial waste, particularly for comminuting paper, wood, plastics, etc., with a material loading chamber, as well as a material outlet region with a receiving container having an outlet opening for the material to be comminuted and with a comminuting mechanism, which is disposed in the receiving container and comprises a comminuting tool that can be caused to rotate by means of a drive motor. In order to create, particularly with a reduced construction and design effort, a comminuting apparatus, with which material can be comminuted effectively to a predetermined extent, the comminuting mechanism comprises at least two, essentially coaxially disposed comminuting tools one of which can be caused to rotate by means of the drive motor, the other of which, on the other hand, is disposed to be stationary or to rotate at a low rotational speed. Moreover, one of the comminuting tools has classification form recesses which are open towards the other comminuting tool.Type: GrantFiled: September 17, 1991Date of Patent: December 14, 1993Inventor: Kurt Roessler
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Patent number: 5199657Abstract: A roller mill assembly composed of a pair of rollers spaced apart to form a crushing zone therebetween and having recesses which are dimensioned and shaped so that during the grinding process feed material is embedded in the recesses and fills them to increase the draw of feed material into the crushing zone.Type: GrantFiled: May 24, 1991Date of Patent: April 6, 1993Assignee: Krupp Polysius AGInventors: Gerhard Kastingschafer, Bernhard Peterwerth
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Patent number: 5170951Abstract: A fibrous material grinding apparatus which includes a rotatable grinding device mounted within a housing about which is disposed a number of stationary grinding devices and which are selectively spaced and moveable with respect to the rotatable grinding device to vary a grinding gap therebetween and wherein the fibrous material is introduced into a channel which extends centrally around the periphery of the rotatable grinding device so as to distribute the fibrous material to the grinding gap spaces between the rotary and stationary grinding devices.Type: GrantFiled: April 8, 1991Date of Patent: December 15, 1992Inventor: Stig Obitz
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Patent number: 4874136Abstract: A pulp refiner has a pair of refiner members with opposed surfaces each including alternating grooves and lands extending between a central port and a peripheral port through which a pulp slurry is passed. The edges of the lands define work edges. Drive means are provided for rotating at least one of the members relative to the other. The grooves and lands defined in at least one member extend from the central to the peripheral port in a spiral pattern having a direction on the member from one port to the other relative to the direction of rotation which will provide a screw pump action to the pulp slurry as it advances from one port to the other. The pitch of the spiral lands forming the work edges on the opposed surfaces of the respective refiner members is such that the intersection of the opposed work edges defines an obtuse angle on the downstream side of the lands relative to the direction of rotation and flow such that pulp fibers suspended in the pulp slurry will be subjected to a pinching action.Type: GrantFiled: January 22, 1988Date of Patent: October 17, 1989Inventor: David R. Webster
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Patent number: 4767070Abstract: A grinder for use in a grinding apparatus, comprising a pair of rotary and stationary discs facing each other, in which the rotary disc is rotated through a shaft by a drive motor, and in which a large number of grinding material particles are embedded in the surface of the discs to form microbites to grinding surfaces of the discs, and the strength of the grinding surface of the stationary disc is inferior to that of the rotary disc. The grinding is accomplished by fine cutting which is carried out by microbits formed of superhard grinding material particles having a sharp edge, rather than by mashing or abrasion. The grinder is formed as a cassette type so as to be replaced readily and quickly by new one. The grinder is provided with a clearance adjustor for adjusting the clearance between the rotary disc and the stationary disc.Type: GrantFiled: June 6, 1986Date of Patent: August 30, 1988Assignees: Masamichi Nagao, Masaaki Nagao, Hitachi Techno Engineering Co. Ltd.Inventors: Masamichi Nagao, Masaaki Nagao
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Patent number: 4723718Abstract: The cooperating surfaces defining a pressing nip in a chip crusher are formed with specific patterns to treat the chips by fissuring to facilitate penetration by cooking chemical for the making of pulp for papermaking and the like. One of the surfaces is provided with a plurality of land areas separated by valleys, the land areas being substantially continuous and extending in the direction of movement of the surface as it passes through the crushing nip. The surface cooperates with the surface of a roll which defines the other side of the nip, the roll surface is provided with a plurality of teeth with the crown of each tooth defining a line preferably extending substantially perpendicular to the direction of movement of the roll surface through the nip.Type: GrantFiled: March 23, 1982Date of Patent: February 9, 1988Assignee: Domtar Inc.Inventor: Joseph A. LaPointe, deceased
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Patent number: 4713256Abstract: A process for the preparation of chocolate paste is disclosed wherein various ingredients such as cocoa and powdered sugar are subjected to grinding and powdered sugar are subject to operations grinding to a predetermined degree of particle size, fluidification by dispersion of the particles of sugar and cocoa into a continuous fatty phase and of degassing for the removal of water and undesirable volatile compounds. At least one portion of the treatment is carried out in a conveyor with several screws provided with means for regulating the temperature of the entrained material. According to the invention, after a preliminary grinding of the ingredients to obtain a refined paste having the desired degree of particle size in the screw conveyor a dry-conching treatment of the refined paste is carried out and then the liquefaction of the paste is obtained by the incorporation of adjuvants.Type: GrantFiled: April 26, 1985Date of Patent: December 15, 1987Assignee: ClextralInventors: Henri Chaveron, Jean Pontillon, Michel Billon, Herve Adenier, Ahmed Kamoun
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Patent number: 4688727Abstract: An apparatus for fine grinding of, in particular, material samples for laboratory experiments. The apparatus has a fixed grinding member and a rotating grinding member, which are disposed in such a way that each has a surface facing the other and slightly spaced therefrom, with the material which is to be ground being received and passed between these surfaces. The problem faced by such an apparatus is that samples have to be introduced and discharged one by one, so that the work is carried out as a batch process. It is also difficult to accurately adjust the grinding degree. In order to solve these problems, and to carry out a continuous grinding of hard and very hard materials, as well as to be able to adjust the grain size of the grinding, the invention proposal is that the grinding members on the one hand be a fixed cylindrical body and on the other hand be a roller body which rotates coaxially therein.Type: GrantFiled: November 2, 1984Date of Patent: August 25, 1987Assignee: F. Kurt Retsch GmbH & Co. KGInventor: Dirk Sijsling
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Patent number: 4643085Abstract: The invention relates to a machine for the extraction of juice and puree from tomatoes, fruit and other produce having certain essential features, namely: a rotor with specially shaped vanes arranged in such a way as to invest the bulk of produce with a turbulence which speeds and enhances the process of extraction, as well as improving a high percentage yield per unit of bulk foodstuff; an inflow device having one fixed and one rotary component which guarantees a uniform break and a steady, even flow of broken produce to each rotor vane; a collection chamber separated into two or more distinct stages each with a relative outlet; a strainer having perforations to suit the individual extraction stages of the machine; and means for the removal of foodstuff which accumulates on the outer surface of the strainer featuring utilization of a part of the extracted juice recycled under pressure.Type: GrantFiled: March 26, 1985Date of Patent: February 17, 1987Inventor: Primo Bertocchi
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Patent number: 4610397Abstract: The invention involves equipment comprising what may be referred to as a cutting head cylinder or unit provided with discharge passages and adjacent cutting edges and an improved impeller rotatable in the unit for directing a product or material introduced into the head tangentially against the cutting edges for comminuting or reducing the size of the product for flow outwardly through the passages. More particularly, the impeller structure embodies improved principles of design and construction and method of its operation whereby the product is presented substantially uniformly or evenly to the cutting edges and over the inside surface throughout the length of the cutting head or cylinder in order to substantially alleviate any concentration of the product in any localized areas within the confines of the head.Type: GrantFiled: October 27, 1983Date of Patent: September 9, 1986Assignee: Urschel Laboratories IncorporatedInventors: Robert R. Fischer, Joe R. Urschel
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Patent number: 4562972Abstract: In a pulverizer of the type having, within a casing, a stator and a rotor to be rotated in the stator, both having large numbers of mutually confronting ridges or teeth with a gap therebetween, the gap is 1 mm or less, and the ridges of the stator are of sawtooth shape as viewed in cross section and have flanks forming troughs therebetween with an acute bottom dihedral angle of 45 to 60 degrees. At least one tier of a classification ring is provided around the inner wall surface of the stator to form flow-blocking barriers across some or all of the troughs thereby to prevent particles being pulverized from being swept through the troughs without being satisfactorily pulverized.Type: GrantFiled: April 9, 1984Date of Patent: January 7, 1986Assignee: Kawasaki Jukogyo Kabushiki KaishaInventors: Tatsuo Hagiwara, Shozi Nagano
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Patent number: 4260113Abstract: Chips of scrap wood having a length at least twice the desired length of shavings for the making of particle board panels, as considered in the direction of grain, are fed into a rotor having an annulus of blades which split the chips in the direction of grain and feed the comminuted chips into the range of stationary comb-like knives serving to subdivide the split chips into shavings of ultimate length.Type: GrantFiled: November 13, 1978Date of Patent: April 7, 1981Assignee: Maschinenfabrik B. Maier KGInventors: Gerhard Maier, Udo Rosenke, Manfred Humbert, Walter Ritter
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Patent number: 4238079Abstract: A cutting device of an apparatus for comminuting food products has two cutting rings located concentrically to one another and rotatable relative to one another about a common axis, so that an annular slot is bounded therebetween. The cutting rings have a plurality of axially extending teeth formed between axially extending slots, and the teeth of at least one cutting ring carry cutting members of hard alloy. Each of the cutting members of this one cutting disc completely overlaps a front surface of a respective one of the teeth and has two axially extending edges facing toward the annular slot between the cutting rings. One of these edges is a cutting edge, whereas the other of these edges forms, together with the cutting edge of a circumferentially adjacent tooth, a cutting gap.Type: GrantFiled: May 24, 1979Date of Patent: December 9, 1980Assignee: A. Stephan & Soehne GmbH & Co.Inventor: Friedrich Otto
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Patent number: 4171103Abstract: Apparatus for comminuting industrial and/or bulky domestic waste materials has an upright housing with a funnel-shaped section located above a stationary counterknife which cooperates with a single rotary knife therebelow or with two rotary knifes respectively disposed thereabove and therebelow. The inner side of the funnel-shaped housing section has a downwardly sloping spiral surface which advances waste material downwardly toward the upper rotary knife or toward the counterknife and whose upper portion flares outwardly and downwardly at a gradually diminishing angle with respect to the common axis of the knives. The lower portion of the spiral surface merges gradually into the upper portion and thereupon flares outwardly and upwardly with respect to the common axis. A feeding device which rotates with the rotary knife or knives extends into the funnel-shaped section and has one or more arms whose edge portions resemble spirals or helices having a lead opposite to that of the spiral surface.Type: GrantFiled: January 16, 1978Date of Patent: October 16, 1979Assignee: Max Frost, Maschinen- und ApparatebauInventor: Kurt Rossler
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Patent number: 4042183Abstract: The inventive rotor operates in a mixer-refiner-reactor of the type shown in U.S. Pat. No. 3,806,050. The rotor body is formed with axially extending dovetail slots opening radially inward from the cylindrical periphery of the rotor body. The slots are filled with transverse plates having bases that fit in the slots, and each of the plates has a projection extending radially outward beyond the periphery of the rotor body to provide a working surface for engaging material. The plates can be set at angles relative to a plane perpendicular to the axis of the rotor body, and liner strips preferably fit between the bases of the plates and the inside surfaces of the slots. Spacer plates can be fitted in the slots between the plates having projections, which can vary from a single projection extending substantially across a slot to shorter projections in different transverse positions relative to the slot.Type: GrantFiled: April 21, 1976Date of Patent: August 16, 1977Inventor: Edward H. Cumpston
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Patent number: 4020994Abstract: The invention is a method of correlating the stator and rotor in a mixer-refiner-reactor of the type shown in U.S. Pat. No. 3,806,050. The mixer is set up originally with an estimated correlation between the stator and the rotor by establishing the total working area of discrete raised bars in the rotor and stator and by establishing the stator bar height, the radial gap between the rotor bars and the inside surface of the stator, and the proportion of predominance of feed bars in the stator. The material to be processed is then input into the mixer, and the power consumption is monitored. Depending on the results, the stator bars are then changed according to selected relationships to increase or decrease the rotor penetration of the layer of material formed around the stator in response to a given rate of input of material.Type: GrantFiled: January 28, 1976Date of Patent: May 3, 1977Inventor: Edward H. Cumpston
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Patent number: 3982704Abstract: Grinding disk for disk mills, including a plurality of annular rings of cutting tools, wherein each ring of cutting tools is formed of a plurality of annularly spaced apart, generally radially oriented saw teeth sets, with the sets of teeth of radially adjacent annular rings being generally annularly offset.Type: GrantFiled: March 21, 1975Date of Patent: September 28, 1976Assignee: Palyi-Hansen International APSInventor: Leslie Palyi
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Patent number: 3930878Abstract: Method and apparatus for converting grains, beans, and like materials into flour, as highly water absorbent starch. The material is introduced into the annular gap between a stationary outer truncated cone member and an inner rotating truncated cone member. The cone members are on a vertical axis, smaller ends uppermost, and have axial grooves on the opposed surfaces forming regions to grind the material introduced between the surfaces. The cone members taper inwardly toward the top and at about the upper half the opposed surfaces of the cone members diverge while at about the lower half the opposed surfaces are substantially parallel. The cone members are relatively adjustable in the axial direction, particularly to control the size of the gap between the lower portions thereof.Type: GrantFiled: April 22, 1974Date of Patent: January 6, 1976Inventor: Fausto Celorio Mendoza
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Patent number: RE29053Abstract: A high viscosity material mixer-refiner having a cylindrical stator shell and rotor has improved refining surfaces on the rotor and stator. These are formed of interchangeable blocks held in place on the rotor and the stator with the blocks having teeth oriented in different aspects to the relative motion between the rotor and the stator. The teeth are preferably raised bars with orientations for advancing or retarding material. The blocks are arranged in desired patterns to accomplish optimum mixing and refining.Type: GrantFiled: March 8, 1976Date of Patent: November 30, 1976Inventor: Edward H. Cumpston, Jr.