Intermeshing With Each Other Patents (Class 366/301)
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Patent number: 6623156Abstract: Method and apparatus for treating a fluid mass or stock, particularly couch stock or the like in paper making. Stock material is fed to a vessel having a mixing arrangement comprising rotatably arranged processing means. At least two processing means are caused to rotate mutually adjacent in opposite directions and substantially horizontally. The stock at the upper surface of the means is conveyed towards a wall potion of the vessel, whereby spirals arranged in an inclined manner at a core of the processing means bring the stock into channels defined by the core, by the spirals, and by the wall portion of the vessel, and further towards a constriction formed by the spiral elements running in an intermeshed manner, while a part of the stock is forced in a direction away from a discharge of the vessel.Type: GrantFiled: September 26, 2000Date of Patent: September 23, 2003Assignee: POM Technology Oy ABInventor: Paul Olof Meinander
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Publication number: 20030174576Abstract: A mixing assembly for mixing bone cement includes a housing, a lid, a handle, and two mixing paddles, a first and a second mixing paddle. The lid is removably attachable to the housing. The handle has a portion that extends through the lid and that is rotatable in a first rotational direction. The first mixing paddle is operatively coupled to the portion of the handle. As a result, the first mixing paddle rotates with the portion of the handle in the first rotational direction. The second mixing paddle is operatively coupled to the first mixing paddle for rotating opposite the portion. As such, when the portion of the handle and the first mixing paddle rotate in the first rotational direction, the second mixing paddle rotates in a second rotational direction that is opposite the first rotational direction.Type: ApplicationFiled: March 13, 2003Publication date: September 18, 2003Applicant: STRYKER INSTRUMENTSInventors: Christopher Matthew Tague, Richard F. Huyser, Jared Paul Coffeen, Christopher Scott Brockman
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Patent number: 6616320Abstract: A continuous mixer (32) is disclosed which can be used for mixing of incoming product streams (22, 24) of different characteristics respectively to yield a final product stream (26) of predetermined, consistent characteristics. The mixer (32) includes an elongated housing (42) having a pair of product input ports (50, 52) and an output (64), with a pair of elongated, axially rotatable, mixing screws (44, 46) located within the housing (42). The screws (44, 46) include a series of outwardly projecting mixing elements (114) preferably of pyramidal design and arrayed in a helical pattern along the length of the screws (44,46). The mixer (32) may be used in a processing system (20,200) having individual product lines (28, 30, 204, 206) coupled to the mixer (32), and is especially useful for processing of incoming meat streams (22,24) of different fat/lean ratios, to give a final comminuted output stream (26) of an intermediate and essentially constant fat/lean ratio.Type: GrantFiled: July 8, 2002Date of Patent: September 9, 2003Assignee: Wenger Manufacturing, Inc.Inventors: Gordon R. Huber, Gerald E. Schmelzle, Timothy R. Hartter, Adrian L. Strahm, Michael J. Strahm
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Patent number: 6588928Abstract: A continuous mixer (32) is disclosed which can be used for mixing of incoming product streams (22, 24) of different characteristics respectively to yield a final product stream (26) of predetermined, consistent characteristics. The mixer (32) includes an elongated housing (42) having a pair of product input ports (50, 52) and an output (64), with a pair of elongated, axially rotatable, mixing screws (44, 46) located within the housing (42). The screws (44, 46) include a series of outwardly projecting mixing elements (114) preferably of pyramidal design and arrayed in a helical pattern along the length of the screws (44,46). The mixer (32) may be used in a processing system (20,200) having individual product lines (28, 30, 204, 206) coupled to the mixer (32), and is especially useful for processing of incoming meat streams (22,24) of different fat/lean ratios, to give a final comminuted output stream (26) of an intermediate and essentially constant fat/lean ratio.Type: GrantFiled: July 8, 2002Date of Patent: July 8, 2003Assignee: Wenger Manufacturing, Inc.Inventors: Gordon R. Huber, Gerald E. Schmelzle, Timothy R. Hartter, Adrian L. Strahm, Michael J. Strahm
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Patent number: 6550372Abstract: A food processing appliance includes a reservoir to receive water, a heater to produce steam from any water in the reservoir and a food-containing vessel positioned to receive steam from the heater. The vessel has a number of apertures that are sized to allow ingress of the steam to the vessel, yet curtail egress of any pureed food in the vessel therethrough. A carrier is mounted movably with respect to the vessel and a motor causes relative movement between the carrier and the vessel. A beater extends into the vessel from the carrier.Type: GrantFiled: July 8, 2002Date of Patent: April 22, 2003Assignee: Chiaphua Industries LimitedInventor: James Henry Sharples
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Patent number: 6550959Abstract: A continuous mixer (32) is disclosed which can be used for mixing of incoming product streams (22, 24) of different characteristics respectively to yield a final product stream (26) of predetermined, consistent characteristics. The mixer (32) includes an elongated housing (42) having a pair of product input ports (50, 52) and an output (64), with a pair of elongated, axially rotatable, mixing screws (44, 46) located within the housing (42). The screws (44, 46) include a series of outwardly projecting mixing elements (114) preferably of pyramidal design and arrayed in a helical pattern along the length of the screws (44,46). The mixer (32) may be used in a processing system (20,200) having individual product lines (28, 30, 204, 206) coupled to the mixer (32), and is especially useful for processing of incoming meat streams (22,24) of different fat/lean ratios, to give a final comminuted output stream (26) of an intermediate and essentially constant fat/lean ratio.Type: GrantFiled: July 8, 2002Date of Patent: April 22, 2003Assignee: Wenger Manufacturing, Inc.Inventors: Gordon R. Huber, Gerald E. Schmelzle, Timothy R. Hartter, Adrian L. Strahm, Michael J. Strahm
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Patent number: 6523988Abstract: A device for processing foodstuffs or feedstuffs exhibits a conditioning device (2, 3) encompassing a mixing chamber (3) over a retention chamber (2), which are interconnected. Each chamber has a rotor shaft (4, 6) that extends lengthwise into the chamber, and each rotor (4, 6-8) is equipped with the corresponding tools (7, 8) all around the shaft (4, 6). The retention chamber (2) exhibits a second shaft (5), whose tools (7) intermesh for purposes of joint conveyance.Type: GrantFiled: May 27, 1999Date of Patent: February 25, 2003Assignee: Buhler AGInventors: Karl-Heinz Berdais, Markus Meyer, Stefan Rutishauser
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Patent number: 6520671Abstract: A device for dosing and/or mixing highly viscous and non-flowable materials, especially pigment pastes. The device includes a funnel which revolves about its own axis and a twin screw arranged inside the funnel. The twin screw arranged in a horizontal position in the funnel and contacts the interior wall thereof. This arrangement ensures that all moveable parts of the device mutually strip and clean one another.Type: GrantFiled: January 31, 2001Date of Patent: February 18, 2003Assignee: Buhler AGInventors: Roland Halter, Achim Sturm, Bernhard Stalder
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Publication number: 20020181324Abstract: A continuous mixer (32) is disclosed which can be used for mixing of incoming product streams (22, 24) of different characteristics respectively to yield a final product stream (26) of predetermined, consistent characteristics. The mixer (32) includes an elongated housing (42) having a pair of product input ports (50, 52) and an output (64), with a pair of elongated, axially rotatable, mixing screws (44, 46) located within the housing (42). The screws (44, 46) include a series of outwardly projecting mixing elements (114) preferably of pyramidal design and arrayed in a helical pattern along the length of the screws (44,46). The mixer (32) may be used in a processing system (20,200) having individual product lines (28, 30, 204, 206) coupled to the mixer (32), and is especially useful for processing of incoming meat streams (22,24) of different fat/lean ratios, to give a final comminuted output stream (26) of an intermediate and essentially constant fat/lean ratio.Type: ApplicationFiled: July 8, 2002Publication date: December 5, 2002Inventors: Gordon R. Huber, Gerald E. Schmelzle, Timothy R. Hartter, Adrian L. Strahm, Michael J. Strahm
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Publication number: 20020176319Abstract: A continuous mixer (32) is disclosed which can be used for mixing of incoming product streams (22, 24) of different characteristics respectively to yield a final product stream (26) of predetermined, consistent characteristics. The mixer (32) includes an elongated housing (42) having a pair of product input ports (50, 52) and an output (64), with a pair of elongated, axially rotatable, mixing screws (44, 46) located within the housing (42). The screws (44, 46) include a series of outwardly projecting mixing elements (114) preferably of pyramidal design and arrayed in a helical pattern along the length of the screws (44,46). The mixer (32) may be used in a processing system (20,200) having individual product lines (28,30,204,206) coupled to the mixer (32), and is especially useful for processing of incoming meat streams (22,24) of different fat/lean ratios, to give a final comminuted output stream (26) of an intermediate and essentially constant fat/lean ratio.Type: ApplicationFiled: July 8, 2002Publication date: November 28, 2002Inventors: Gordon R. Huber, Gerald E. Schmelzle, Timothy R. Hartter, Adrian L. Strahm, Michael J. Strahm
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Publication number: 20020176318Abstract: A continuous mixer (32) is disclosed which can be used for mixing of incoming product streams (22, 24) of different characteristics respectively to yield a final product stream (26) of predetermined, consistent characteristics. The mixer (32) includes an elongated housing (42) having a pair of product input ports (50, 52) and an output (64), with a pair of elongated, axially rotatable, mixing screws (44, 46) located within the housing (42). The screws (44, 46) include a series of outwardly projecting mixing elements (114) preferably of pyramidal design and arrayed in a helical pattern along the length of the screws (44,46). The mixer (32) may be used in a processing system (20,200) having individual product lines (28,30,204,206) coupled to the mixer (32), and is especially useful for processing of incoming meat streams (22,24) of different fat/lean ratios, to give a final comminuted output stream (26) of an intermediate and essentially constant fat/lean ratio.Type: ApplicationFiled: July 8, 2002Publication date: November 28, 2002Inventors: Gordon R. Huber, Gerald E. Schmelzle, Timothy R. Hartter, Adrian L. Strahm, Michael J. Strahm
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Publication number: 20020075754Abstract: A continuous mixer (32) is disclosed which can be used for mixing of incoming product streams (22, 24) of different characteristics respectively to yield a final product stream (26) of predetermined, consistent characteristics. The mixer (32) includes an elongated housing (42) having a pair of product input ports (50,52) and an output (64), with a pair of elongated, axially rotatable, mixing screws (44,46) located within the housing (42). The screws (44, 46) include a series of outwardly projecting mixing elements (114) preferably of pyramidal design and arrayed in a helical pattern along the length ofthe screws (44,46). The mixer (32) may be used in a processing system (10) having individual product lines (28, 30) coupled to the mixer (32), and is especially useful for processing of incoming meat streams (22,24) of different fat/lean ratios, to give a final comminuted output stream (26) of an intermediate and essentially constant fat/lean ratio.Type: ApplicationFiled: December 19, 2000Publication date: June 20, 2002Applicant: WENGER MANUFACTURING, INC.Inventors: Gordon R. Huber, Gerald E. Schmelzle, Timothy R. Hartter, Adrian L. Strahm, Michael J. Strahm
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Publication number: 20020075755Abstract: A continuous mixer (32) is disclosed which can be used for mixing of incoming product streams (22, 24) of different characteristics respectively to yield a final product stream (26) of predetermined, consistent characteristics. The mixer (32) includes an elongated housing (42) having a pair of product input ports (50, 52) and an output (64), with a pair of elongated, axially rotatable, mixing screws (44, 46) located within the housing (42). The screws (44, 46) include a series of outwardly projecting mixing elements (114) preferably of pyramidal design and arrayed in a helical pattern along the length of the screws (44,46). The mixer (32) may be used in a processing system (20,200) having individual product lines (28, 30, 204, 206) coupled to the mixer (32), and is especially useful for processing of incoming meat streams (22,24) of different fat/lean ratios, to give a final comminuted output stream (26) of an intermediate and essentially constant fat/lean ratio.Type: ApplicationFiled: February 12, 2001Publication date: June 20, 2002Applicant: WENGER MANUFACTURING, INC.Inventors: Gordon R. Huber, Gerald E. Schmelzle, Timothy R. Hartter, Adrian L. Strahm, Michael J. Strahm
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Patent number: 6382826Abstract: A compact extruder with multiple parallel screws having a variable pitch arrangement, includes an outer casing which has at least two chambers that contain at least two screws which allow material to flow from one chamber to the other chamber through a passage, and that present a feed inlet for the material to be treated and an outlet for the material; each chamber has at least one pair of housings for the corresponding pair of screws which engage with one another, each screw presenting a long-pitch portion and a short-pitch portion.Type: GrantFiled: June 6, 2000Date of Patent: May 7, 2002Assignee: Costruzioni Meccaniche Luigi Bandera S.p.A.Inventor: Giovanni Della Rossa
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Patent number: 6323262Abstract: In a continuous process for producing filler-containing silicone compositions (P), a silicone composition (E) comprising filler (F1) is mixed with filler (F2).Type: GrantFiled: February 25, 2000Date of Patent: November 27, 2001Assignee: Wacker-Chemie GmbHInventors: Frank Achenbach, Manfred Heisler, Armin Fehn, Christof Wörner
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Patent number: 6288196Abstract: An organopolysiloxane gum is continuously prepared by (I) mixing at least one cyclopolysiloxane with an end capping agent, (II) feeding the mixture to a self-cleaning reactor along with an alkaline polymerization catalyst, and effecting polymerization at a temperature of 100 to 250° C. and under subatmospheric pressure, (III) continuously adding a neutralizing agent to the reaction mixture of step (II), thereby terminating the polymerization reaction, and (IV) continuously removing the cyclopolysiloxane and volatile components from the reaction mixture.Type: GrantFiled: December 2, 1999Date of Patent: September 11, 2001Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Masaharu Takahashi, Yutaka Hagiwara
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Patent number: 6270248Abstract: A mixing apparatus which prevents erosion of left and right side walls 12a 12b for a flow path 12 for a molten substance of high temperature M and homogenizes the molten substance of high temperature while occurrence of air bubbles is prevented, wherein there are a plurality of mixing units 11 in the flow path 12; an even number of pairs of mixing units 11 are arranged symmetrically with respect to the center line in a longitudinal direction of the flow path 12 and the gap s between a left side wall or a right side wall and an outer peripheral edge of a mixing blade 14 is determined to be 0.04-0.1 times as much as the distance W between the left and right side walls 12a, 12b.Type: GrantFiled: October 7, 1999Date of Patent: August 7, 2001Assignee: Asahi Glass Company Ltd.Inventors: Shouzou Yoshida, Yasuhisa Hirabayashi, Ichiro Terao
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Patent number: 6260995Abstract: A description is given of a mixing apparatus for the treatment of viscous substances which comprises a heatable housing 1 with a product inlet 6 on one side of the vessel and a product outlet 8 on the other side of the housing 1 and, if appropriate, an exhaust vapor nozzle 7, which comprises two or more mutually parallel counter-rotating shafts 2, 2′. Located thereupon there are paddles 3, 3′ extending in the circumferential direction and blades 4, 4′, 5, 5′ extending along the axial direction. The apparatus permits the active axial conveyance of the mixed substance, the moving internals fully cleaning themselves kinematically during operation of the apparatus.Type: GrantFiled: January 7, 1999Date of Patent: July 17, 2001Assignee: Bayer AktiengesellschaftInventor: Heinrich Schuchardt
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Patent number: 6220745Abstract: A method of and device for removing a liquid from a resin of high melting point by means of a co-rotating twin extruder and an operation system of a liquid removal molding of a resin of high melting point by which a scaled down, highly effective, high performance and continuous stable operation of the device may be achieved.Type: GrantFiled: July 24, 1997Date of Patent: April 24, 2001Assignee: Toshiba Machine Co., Ltd.Inventors: Akiyoshi Kobayashi, Junya Ishibashi
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Patent number: 6214962Abstract: An organopolysiloxane gum is continuously prepared by (I) mixing at least one cyclopolysiloxane with an end capping agent, (II) feeding the mixture to a self-cleaning reactor along with a polymerization catalyst of thermal decomposition type, and effecting polymerization at a temperature of 80-130° C., (III) heating the reaction mixture of step (II) at a temperature of 130-200° C. under subatmospheric pressure for deactivating the catalyst, thereby terminating the polymerization reaction, and (IV) continuously removing the cyclopolysiloxane and volatile components from the reaction product.Type: GrantFiled: December 2, 1999Date of Patent: April 10, 2001Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Masaharu Takahashi, Yutaka Hagiwara, Minoru Igarashi, Keiji Shibata, Kenji Tawara, Yoshio Tomizawa
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Patent number: 6213629Abstract: A device for mixing particulate material and liquid includes a container, an inlet for the introduction of particulate material into the container, a liquid spraying device for spraying liquid over the particulate material in the container, a disc agitator arranged in the container, and an outlet for discharging material mixed with liquid from the container. A fluidization device is provided to fluidize the particulate material in the container during the mixing operation. The inlet is arranged at one lengthwise side wall of the container, so as to extend along that wall. The outlet is arranged in the other lengthwise side wall, so as to extend along the wall.Type: GrantFiled: September 17, 1999Date of Patent: April 10, 2001Assignee: ABB Fläkt ABInventor: Nils Bringfors
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Patent number: 6211267Abstract: A highly productive method for the continuous production of homogeneous solutions of organopolysiloxane gums is carried out by mixing a solvent and an organopolysiloxane gum. It is characterized by using for mixing, a twin screw compounding extruder which is self-cleaning in which the extruder has at least 2 solvent feed ports downstream from the gum feed port and the internal pressure in the extruder is maintained at a value from 0.00981 to 0.981 MPa during the process.Type: GrantFiled: October 28, 1999Date of Patent: April 3, 2001Assignee: Dow Corning Toray Silicone, Ltd.Inventors: Fumitaka Suto, Hideyuki Mori, Norikatsu Higuchi, Norio Matsuda
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Patent number: 6177052Abstract: The invention pertains to a device for cleaning flue gas, with a container (31) to which raw gas and an adsorbant/absorbant for cleaning of the raw gas can be supplied via at least one supply opening (33) and from which the cleaned gas can be removed via at least one outlet opening (35), whereby moveable built-in parts (39) are located in the container (31), whereby the moveable built-in parts (39) have flexible swirling elements (43).Type: GrantFiled: June 2, 1998Date of Patent: January 23, 2001Assignee: FHW-Brenntechnik, GmbHInventors: Hermann Weichs, Andreas Friedl
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Patent number: 6136246Abstract: A screw extruder (10) having a barrel (18) which has a bore (26) defining an inner surface (44) and one or more extruder screws (28), positioned within the bore (26). The extruder screw or screws (28) include a central shaft (34) and one or more screw flights (30). The extruder screw or screws (28) farther including one or more dispersive mixing elements (204), (234), (308), (406), (508), (558), which interact with the inner surface of the barrel (44) to form one or more progressively narrowing passages (46) through which material is forced into multiple regions of high elongational and shear stress (480, (120), (214), (310), (410), (510), (564).A second preferred embodiment is a screw extruder (10) having a barrel (18) having a bore (26) defining an inner surface (44) and one or more extruder screws (600), (701), positioned within the bore (26).Type: GrantFiled: February 1, 1999Date of Patent: October 24, 2000Assignee: Rauwendaal Extrusion EngineeringInventors: Chris J. Rauwendaal, Paul J. Gramann, Bruce A. Davis, Tim A. Osswald
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Patent number: 6123446Abstract: The apparatus for treating viscous substances described is composed of a heatable vessel with, on one side, an inlet for the materials of the mix and, on the other side, an outlet for the materials of the mix and of two or more corotating shafts to which mixer elements have been attached, characterized in that the mixer elements are composed of two layers of bars, which are arranged crosswise in relation to each other, connected to one another. There are pins running axially attached to the face sides of the bars. These clean the interstices between the bars of the mixer elements of the adjacent shaft.Type: GrantFiled: November 10, 1999Date of Patent: September 26, 2000Assignee: Bayer AktiengesellschaftInventor: Heinrich Schuchardt
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Patent number: 6095035Abstract: A food processing apparatus is disclosed that has a tank with an inlet end and an outlet end. The apparatus has at least two rotary drums received within an interior chamber of the tank, each communicating with the inlet end for urging a food product from the inlet end simultaneously through the drums to the outlet end. A liquid is held at a desired level within the interior chamber. Each of the rotary drums is submerged in the liquid to a predetermined depth. The food processor of the present invention is particularly well suited for increasing the food product volume capacity for particular foods which can only be passed through the drums at a relatively low product level within each drum.Type: GrantFiled: December 30, 1998Date of Patent: August 1, 2000Assignee: Lyco Manufacturing, Inc.Inventors: David R. Zittel, Steven W. Hughes
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Patent number: 6059442Abstract: The mixing appliance comprises a housing (2) with an electromotor (4), two spindles (9) each adapted to receive a mixing implement (11) in such a way that it is secured against turning but releasable, and a drive connection (7, 8) between the electromotor (4) and the spindles (9), the two spindles (9) and their drive connections (7, 8) being designed such that beaters (11) secured in these spindles (9) during operation are mutually counterrotating and provide between them a flow direction, and such that the areas touched by such beaters during operation overlap each other. The appliance comprises at least one additional spindle (15) for simultaneous, releasable receipt of an additional mixing implement (16) of the same type as the abovementioned mixing implements (11) and a further drive connection (17, 18, 20) for driving a mixing implement (16) in a further spindle (15).Type: GrantFiled: June 12, 1996Date of Patent: May 9, 2000Assignee: Ole Bodtcher-Hansen A/SInventor: Mads Morch
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Patent number: 6039469Abstract: A kneader mixer comprises at least two axial-parallel rotating shafts, each of the shafts having a plurality of kneading-transporting elements axially spaced on the shaft and separated from each other on the shaft by a tubular section.Type: GrantFiled: May 29, 1998Date of Patent: March 21, 2000Assignee: List AGInventor: David Palmer
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Patent number: 6033103Abstract: A mixing device for the treatment of viscous substances is described, which mixing device comprises a heatable container 1 with product inlet 5 on the one side of the container and product outlet 6 on the other side of the container, and where appropriate a vapor connection 7, which mixing device comprises a plurality of shafts 2,2' rotating in the same direction. Annular discs 4 are fitted to a shaft 2 by means of spokes 3; in this case, the annular discs 4 are corrugated in the axial direction, and annular discs 4 and spokes 3, together with the shaft 2 carrying them, kinematically clean the annular discs 4', spokes 3' and the adjacent shaft 2' carrying the latter. At all times, the housing 1 is kinematically cleaned by the annular discs 4,4' and spokes 3,3' in the course of rotation of the shafts 2,2'.Type: GrantFiled: October 29, 1998Date of Patent: March 7, 2000Assignee: Bayer AktiengesellschaftInventor: Heinrich Schuchardt
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Patent number: 5942170Abstract: A continuous method of and system for fabricating thermoset polymer pellets wherein thermosetting polymeric resin material flows axially in a temperature controlled, mixer-extruder barrel while maintaining the material between a melt temperature and a higher thermosetting reaction temperature, and extrudes from the barrel at an extrusion temperature between the melt and reaction temperatures. The extruded material is formed into generally spheroidal pellets which are cooled in a transporting coolant liquid stream and charged to the interior of an open ended, centrifuge basket having a porous circumferential wall and an interior annular pusher plate. The wall is rotated to demoisterize the pellets by centrifugally removing liquid coolant and while reciprocating the pusher plate and basket relatively to displace the pellets axially along and off the basket wall. Pellets are taken from the basket wall without substantially fracturing them and forming an undue percentage of fines.Type: GrantFiled: September 12, 1997Date of Patent: August 24, 1999Assignee: B&P Process Equipment and Systems, L.L.C.Inventor: Thomas A. Peitz
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Patent number: 5932159Abstract: A screw extruder (10), including a barrel (18) having a bore (26) which defines an inner surface (24). At least one extruder screw (28) is positioned within the bore (26), each screw (28) further including a central shaft (34) and at least one screw flight (30). Each screw flight (30) further includes a front pushing face (36) and a rear face (38). The profile (40) of each front pushing face (36) acts with the inner surface (24) of the barrel (18) to form a progressively narrowing passage (46) through which material is forced into multiple regions of high elongational and shear stress (48) which act to break down agglomerates of material and thus dispersively mix the material.Also presented is a screw extruder (100) having a single screw (28) which includes dispersion disks (102) which are rotationally offset from one another and whose design is not constrained by interaction with a second disk, which provides improved distributive and dispersive mixing.Type: GrantFiled: November 7, 1997Date of Patent: August 3, 1999Assignee: Rauwendaal Extrusion Engineering, Inc.Inventor: Chris J. Rauwendaal
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Patent number: 5918978Abstract: The invention refers to a device for mixing chemicals into a pulp suspension, where a high-speed rotor (5) with an open center is mounted inside a mixing chamber (2). It is mainly characterized by at least one further high-speed rotor (5') with open center being provided, the areas covered by these rotors (5, 5') overlapping and the spacing between the axis of the rotors (5, 5') being selected so that the rotor arms (8, 8') extend almost to the center of at least one other rotor (5, 5').Type: GrantFiled: October 13, 1997Date of Patent: July 6, 1999Assignee: Andritz-Patentverwaltungs-Gesellschaft m.b.H.Inventor: Rudolf Schieg
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Patent number: 5897206Abstract: An agitator for providing uniform and rapid material mixing is provided comprising a first sweep blade mechanically coupled to a second sweep blade. The first sweep blade extends from a first sweep blade origin to a first sweep blade terminus along a first substantially helical path defined about a first helical axis. The second sweep blade extends from a second sweep blade origin to a second sweep blade terminus along a second substantially helical path defined about a second helical axis. The respective orientations of the first sweep blade along the first substantially helical path and the second sweep blade along the second substantially helical path define a first flow direction extending from the first sweep blade origin to the second sweep blade terminus. An agitator assembly is provided comprising a first agitator, a second agitator, a mixing bowl enclosing the first and second agitators, and a driving assembly coupled to the first and second agitators.Type: GrantFiled: September 18, 1997Date of Patent: April 27, 1999Assignee: Peerless Machinery CorporationInventor: Michael W. Hall
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Patent number: 5887976Abstract: A machine for continuous kneading, having at least one rotating shaft along which paddles are mounted, wherein notched feed adjusting plates are mounted on each shaft. In some embodiments, each feed adjusting plate is a C-shaped plate having a notch of adjustable width. In other embodiments, the machine has two rotating shafts. One of the shafts rotates at relatively low speed; the other rotates at relatively high speed.Type: GrantFiled: February 23, 1998Date of Patent: March 30, 1999Assignee: Sintokogio, Ltd.Inventors: Toshihisa Komori, Reiki Murakami, Toshihiko Takayanagi
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Patent number: 5876115Abstract: The invention relates to a fully self-cleaning reactor/mixer having a large freely usable volume, that cleans itself kinematically, consisting of two or more parallel shafts (2, 2') rotating in opposite directions, on which are located spirally arranged, axially offset paddles (3, 3') with scrapers (4, 4', 5, 5') on the front and rear of the paddles, and a surrounding housing (1). Since all the scrapers (4, 4') on the upstream side of the paddles (3, 3') convey the material concerned outwards and all the scrapers (5, 5') on the downstream side of the paddles convey the material inwards, axial conveyance is obtained.Type: GrantFiled: March 20, 1997Date of Patent: March 2, 1999Assignee: Bayer AktiengesellschaftInventors: Klaus Schebesta, Heinrich Schuchardt, Martin Ullrich
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Patent number: 5863117Abstract: Method for continuously mixing polymer materials by means of a continuous mixing machine having a mixing chamber provided with at least one opening for supplying the polymer and at least one mouth for discharging the mixture and having arranged inside it a pair of rotors parallel with one another, the method includes the stages of:supplying the material and any additives to the mixing chamber through the supply mouth; andmixing and feeding the materials towards the outlet, by pre-mixing performed by axial sections of rotors rotating tangentially with respect to one another, and subsequent mixing performed by axial sections of the rotors rotating in a mutually intermeshing manner.Type: GrantFiled: April 21, 1997Date of Patent: January 26, 1999Assignee: Pomini S.P.A.Inventor: Victor Gheorghita
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Patent number: 5842782Abstract: A screw conveyor type delivering and mixing device is for combinational use on a plastics injection molding machine. The screw conveyor type delivering and mixing device comprises a large central screw rod and two small side screw rods that are housed in a delivering tube having a material feeding opening at one end. The delivering tube has a large central tubular portion for accommodation of the large central screw rod and two small tubular side portions for housing the two small side screw rods. The central tubular portion communicates with the two tubular side portions along the full axial length thereof. All the screw rods have sections alternatively having coarse threads, fine threads and medium threads consecutively with different pitches.Type: GrantFiled: May 15, 1997Date of Patent: December 1, 1998Assignee: Wahn-An Machine Produce Co., Ltd.Inventor: Anderson Lau
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Patent number: 5806975Abstract: A method of continuous emulsification that can emulsify high-viscosity organopolysiloxane gums and is capable of continuous mass production. A compounding extruder is used whose barrel 1 contains at least 2 mixing element-equipped shafts 3 installed in parallel. On each shaft elevations and depressions are formed along the axial direction and the elevations and depressions on respective shafts intermesh. Organopolysiloxane gum, emulsifying agent, and water are continuously supplied as starting materials to this compounding extruder, and an organopolysiloxane-in-water emulsion is produced by mixing and homogenizing the starting materials by subjecting them through rotation of the mixing element-equipped shafts to a shearing action at a shear rate of at least 10/second (i.e. 10 reciprocal seconds).Type: GrantFiled: October 24, 1996Date of Patent: September 15, 1998Assignee: Dow Corning Toray Silicone Co., Ltd.Inventors: Hidehiko Hosokawa, Junichi Maeshima, Fumitaka Suto
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Patent number: 5758962Abstract: A continuous kneading machine for doughs comprises a tub-shaped container, open at the top, which contains at least one pair of identical synchronously counterrotating kneading shafts. A series of U-shaped bracket components are attached to each kneading shaft longitudinally. The U-shaped bracket components are angularly offset relative to each other around the shaft circumference, with each bracket component being inclined in the direction of motion, such that the bracket components form a helical profile along the kneading shaft. A "manual" type of kneading is achieved due to the shearing off, pulling apart, and pressing together actions of the inventive shaft and bracket configuration.Type: GrantFiled: July 3, 1996Date of Patent: June 2, 1998Assignee: Ismar Maschinen GmbHInventor: Thomas Theodor Ismar
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Patent number: 5727876Abstract: A mixing apparatus suitable for mixing and conveying solid, particulate, polymeric materials, comprising a barrel that can be heated and cooled, at least two co-rotatable, self-wiping extruder screws located within the bore of the barrel, the screws being connected through a laterally flexible coupling to a dirve means which can reverse the direction of rotation of the screws upon the occurrence of a predetermined event. The apparatus also comprises a closeable feed port and a closeable discharge port, both of which can be made gas-tight, the shafts of the screws being provided with seals capable of withstanding elevated gas pressures inside the barrel.Type: GrantFiled: May 31, 1996Date of Patent: March 17, 1998Assignee: E. I. du Pont de Nemours and CompanyInventor: Daniel Gregory Tynan
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Patent number: 5713209Abstract: An apparatus (10) for at least partially freezing a food product which is at least partly liquid in a batch mode is disclosed including a double screw extruder (12) including first and second, substantially intermeshing, self-wiping screws (14, 16) rotatably received in a figure 8-shaped barrel (30) with minimal clearance. In the preferred form, the freezing block (20) includes multiple refrigerant channels (36) spaced closely and in the most preferred form spaced approximately 0.32 centimeters from the barrel (30) and from each other. Thus, the refrigeration system can change the barrel surface temperature rapidly and specifically in approximately one second when the food product is introduced into the barrel (30). A ratio between the radius of the flight (40) at the crest (42) to the radius at the root (38) of the screws (14, 16) is in the order of 1.04 to reduce the total amount of product in the barrel (30) at any given time and decreasing the product residence time in the extruder (12).Type: GrantFiled: October 24, 1996Date of Patent: February 3, 1998Assignee: General Mills, Inc.Inventors: Dennis A. Hunchar, Terry G. Reishus, Bernhard Van Lengerich, Jose Tadeo V. de Castro, Kenneth A. Focht, Chaitanya Kanojia, Clifford S. Lansil, Christopher T. Zirps
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Patent number: 5697704Abstract: Clumps of dried fruit are separated into individual fruit pieces with reduced damage to the fruit itself by passing the clumps through an apparatus containing a rotating shaft from which robber-like resilient fingers protrude. As they rotate, the fingers pass between other fingers in the apparatus, and the combination exerts a force on the dried fruit clumps that varies with the degree of deflection of the fingers and hence with the sizes and resistances of the clumps.Type: GrantFiled: July 3, 1996Date of Patent: December 16, 1997Assignee: Sun-Maid Growers of CaliforniaInventor: William E. Coyle
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Patent number: 5669710Abstract: A multi-axis mixer/reactor with a large available useful capacity, which is kinematically self-cleaning, comprising at least one housing one, two or more parallel, contrarotating shafts 2, 2', on which intermeshing groups of gear wheels 3, 3' are disposed in an axially spaced-apart manner. The gear wheels 3, 3' are connected to one another by kneading bars 5, 5', while further kneading bars 4, 4' which are connected in each case only to one gear wheel are likewise disposed on the end faces of the gear wheels.Type: GrantFiled: November 29, 1995Date of Patent: September 23, 1997Assignee: Bayer AktiengesellschaftInventors: Klaus Schebesta, Heinrich Schuchardt, Martin Ullrich
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Patent number: 5657687Abstract: A conche for producing chocolate compound consists of a conche container (10) with a main chamber (12) and subsidiary chambers (13, 14). Mixing vanes (22, 23 and 30, 31) are disposed therein on central shafts (19, 20, 21) in order to intimately mix the components fed in from above. In order to improve the mixing effect, additional mixing tools in the form of mixing worms (37, 38) are disposed in the lower part of the conche container (10), in particular in the main chamber (12). Stripping means (24, 25) moved along a cylindrical container wall (15) are supported solely in the region of a central transverse plane on a main shaft (19) in the main chamber (12). The main shaft (19) is provided with a clear cross-sectional thickening (28) which at the same time fills a dead space in the conche container (10).Type: GrantFiled: March 29, 1996Date of Patent: August 19, 1997Assignee: Callebaut N.V.Inventors: Frans Callebaut, Rudy Bruyland
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Patent number: 5658075Abstract: A self-cleaning reactor/mixer, in particular a disk reactor, with a large available useful capacity, which cleans itself kinematically, comprising at least two or more parallel shafts rotating in the same direction, on which axially offset, not necessarily circular disks with scrapers distributed on their circumference are situated, and a surrounding housing. The reactor/mixer on account of the special geometry of its rotors, which extensively avoids acute product-side angles, is particularly suitable for processing solids-bearing materials to be mixed.Type: GrantFiled: November 29, 1995Date of Patent: August 19, 1997Assignee: Bayer AktiengesellschaftInventors: Klaus Schebesta, Heinrich Schuchardt, Martin Ullrich
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Patent number: 5633296Abstract: The method for manufacturing rubber mixtures includes the steps of plasticizing batchwise rubber in a first inner kneader to produce a batch of plasticized rubber and transporting the batch of plasticized rubber, while still hot, into a second inner kneader. In the second kneader nonreactive additives are mixed into the batch of plasticized rubber.Type: GrantFiled: June 14, 1995Date of Patent: May 27, 1997Assignees: Julius Peter, Continental AktiengesellschaftInventor: Julius Peter
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Patent number: 5587298Abstract: A bioreactor which and be used with substrates which are difficult to attain sufficient dispersion is made up of a reaction vessel 1 having a reaction chamber 2 surrounded by a water jacket 3 for maintaining a predetermined constant temperature. The reaction chamber 2 is provided in the vicinity of the inner wall surface 2a of the reaction vessel 2 with a plurality of upright screws 6 and 7 in an adjoining relationship to each other, each screw having a screw thread or a helical fin 6b, 7b of reverse turning sense with each other so that the reactor vessel contents are subjected to a convectional flow induced by the rotation of the screws in the reverse sense to each other by a gearing 14, 15. The substrate therein is subjected to a uniform agitation and to a milling and sieving actions in the portion 13 where the fins of the screws face each other, before the reaction product is removed by a screw conveyer 25.Type: GrantFiled: March 24, 1995Date of Patent: December 24, 1996Assignee: Director General of National Agriculture Research Center, Ministry of Agriculture, Forestry and FisheriesInventors: Akira Horigane, Ushio Matsukura, Masayoshi Kamio
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Patent number: 5540900Abstract: An apparatus for the physiochemical treatment and reaction of material which includes a pair of conveying screws which convey the material from an inlet to an outlet and wherein the portion of the material is recycled through spaced openings between the screws and wherein the material is introduced from one screw to the other screw in such a manner that an air space is created between the threads of the other screw so that air may be provided to or taken from the material being conveyed.Type: GrantFiled: July 5, 1994Date of Patent: July 30, 1996Inventor: Pierre J. Poncet
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Patent number: 5520455Abstract: A batch type kneader (1) is provided with a chamber (3) having a material supply port (5) which can be closed, a pair of rotors (4A, 4B) which are disposed in the chamber (3) so as to be rotatable in opposite directions, and wings (10) provided over the outer circumferential surfaces (10A) of the rotors (4A, 4B) in such a way that they (10) mesh with each other. In this kneader (1), a ratio S/D of a clearance S between the outer circumferential surfaces (10A) of the wings (10) of the rotors (4A, 4B) and an interior wall surface of the chamber (3) to an inner diameter D of the chamber (3) is set in the range of 0.01-0.02. The lands on the wings of the rotors have chamfers.Type: GrantFiled: January 6, 1995Date of Patent: May 28, 1996Assignee: Kabushiki Kaisha KobeseikoshoInventors: Norifumi Yamada, Tatsuya Tanaka, Norihiko Nakamoto, Sumio Hayashida, Katsunobu Hagiwara
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Patent number: RE36390Abstract: The invention pertains to a device for the cooling of edible foams, where a cooling or freezing system for pre-freezing of the foam is directly outlet-connected to an aeration system, a motor driven extruder device designed as combined deep freezing and transport device is outlet-connected to the cooling and freezing system, in which the pre-frozen foam can be cooled down to storage temperature, and the aeration device, the cooling or freezing system and the extruder device are connected together by means of pipes. The device of the present invention is characterized in that the extruder device has at least one double screw system with two screws positioned parallel to each other with their rotational axes. The lands of the screws of the double screw system scrape against the inner cylinder mantle surface of the housing surrounding it.Type: GrantFiled: September 13, 1996Date of Patent: November 16, 1999Inventors: Ulrich Fels, deceased, by Elisabeth Fels, legal representative, Erich Windhab, Ralf Hoffmann, Peter von Holdt, Lutz Hahn