Patents Assigned to Werner & Pfleiderer
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Publication number: 20080248152Abstract: An extruder with a housing comprising parallel, partially inter-engaging bores and screws disposed therein is used when applying a method of feeding powdery bulk materials into such an extruder. A solid transport of powdery bulk material takes place in an inlet zone disposed downstream of a feed opening wherein said inlet zone is partially filled. The inlet zone is provided with at least one gas-permeable wall portion wherein a layer of bulk material is created on said wall portion, thereby preventing bulk material from passing through.Type: ApplicationFiled: March 27, 2008Publication date: October 9, 2008Applicant: Coperion Werner & Pfleiderer GmbH & Co. KGInventors: Hans-Joachim Samann, Werner Wiedmann, Jurgen Strecker, Peter Heidemeyer, Soren Welb
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Publication number: 20080241305Abstract: A system for producing a strip of dough from a strip of raw dough has a bottom pressing device and an upper pressing device with an interposed processing gap for the strip of dough. The pressing devices each have a plurality of planetary rollers that are rotatably driven about their longitudinal axes in each case. In the circumferential direction the planetary rollers are equidistantly distributed about a common central primary axis that extends parallel to the planetary longitudinal axes. The planetary rollers are jointly driveable so as to rotate about the primary axes. Each planetary roller has a middle part coming into contact with the strip of dough, and removably connected to the ends thereof and integral in rotation therewith shaft stubs. The latter are axially and radially supported on frontal head plates of the pressing devices. The dough-strip production system is easy to clean.Type: ApplicationFiled: October 1, 2007Publication date: October 2, 2008Applicant: Werner & Pfleiderer Lebensmitteltechnik GmbHInventor: Rudolf FIEDLER
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Patent number: 7409904Abstract: A baking oven comprises a feeding portion having a feeding aperture for introducing dough pieces, a baking chamber and a discharge portion having a discharge aperture for removing dough pieces. In addition, a circulating air unit is provided which comprises a circulating air source generating a circulating air flow, a circulating air heating means and a circulating air guiding channel a part of which is formed by the baking chamber. A plurality of receptacles for dough pieces are mounted in the baking chamber to be freely rotatable or pivotable around a horizontal rotation or pivot axis. The rotation or pivot axes of the receptacles are located higher than the centre of gravity of the receptacles even if the receptacles are filled with dough pieces. As a result, a baking oven is provided in which the dough pieces can be distributed as evenly as possible and moved along during the baking process.Type: GrantFiled: June 24, 2004Date of Patent: August 12, 2008Assignee: Werner & Pfleiderer LebensmitteltechnikInventors: Frank Blümel, Bernd Dannenhauer, Dieter Knost, Rudolf Fiedler, Thomas Schmidt
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Patent number: 7285759Abstract: A baking oven is provided with a baking oven housing with a baking chamber. The latter is divided into at least two baking zones each of them being provided with at least one own baking oven supply inlet for the feeding of dough pieces. At least one delivery outlet is used for the delivery of the dough pieces. A first one of the at least two baking zones is configured so that a plurality of dough pieces available and conveyed on the supply side as bulk material is being baked there. A second one of the at least two baking zones is configured so that a plurality of dough pieces which are available and conveyed as individual pieces are being baked there. More-over, baking oven is provided with a circulating air source and a means of conveyance for conveying the dough pieces from the supply inlet through the baking chamber to the delivery outlet. A baking system with such a baking oven is furthermore provided with an upstream means of conveyance for conveying dough pieces to the baking oven.Type: GrantFiled: April 27, 2005Date of Patent: October 23, 2007Assignee: Werner & Pfleiderer Lebensmitteltechnick GmbHInventors: Dieter Knost, Bernd Dannenhauer
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Publication number: 20070234836Abstract: A drive unit for a twin-screw machine, of which the screw shafts, which can be driven in rotation in the same direction, have an axial spacing a, has two output shafts. The output shafts are provided with a respective crown gear which does not collide with the adjacent output shaft. The drive motor provided is in the form of a torque motor having a stator housing, a rotor, which is rotatably arranged in the stator housing, and at both ends of the rotor, outside the stator housing, a drive pinion meshing with a crown gear.Type: ApplicationFiled: March 29, 2007Publication date: October 11, 2007Applicant: Coperion Werner & Pfleiderer GmbH & Co. KGInventors: Daniel Schwendemann, Ulrich Weller, Roland Kolbel
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Publication number: 20070227275Abstract: A measuring device for detecting the state of wear of the bore walls of two interpenetrating housing bores, having mutually parallel bore axes, of at least two-shaft screw extruders has a carriage provided with rear drive wheels, front guide wheels and contactlessly operating distance sensors which can each be pivotally driven about a bore axis and can be positioned at a distance from the respective bore wall.Type: ApplicationFiled: March 28, 2007Publication date: October 4, 2007Applicant: Coperion Werner & Pfleiderer GmbH & Co. KGInventor: Rainer Munz
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Patent number: 7264460Abstract: A material processing plant comprises a first screw-type extruding machine (1) and a second screw-type extruding machine (2) which is disposed downstream thereof. Between the two screw-type extruding machines (1, 2), provision is made for a delivery zone (28) where a delivery orifice is provided, extending radially of the axes (12a, 13a) of the casing bores (12, 13) of the first screw-type extruding machine (1) and being directed towards the second screw-type extruding machine (2). The at least one casing bore (12, 13) of the first screw-type extruding machine (1) is lockable in the direction of its axis (12a, 13a) by means of a sealing element.Type: GrantFiled: November 16, 2005Date of Patent: September 4, 2007Assignee: Coperion Werner & Pfleiderer GmbH & Co. KGInventors: Rainer Munz, Jürgen Strecker
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Patent number: 7246554Abstract: A charging arrangement for a baking oven (8) is provided with a supply arrangement (9) for dough pieces (4) and a lifting and delivery device (34) for the dough pieces (4). The supply arrangement (9) is provided with a charging inlet, at least one supply bin (10, 23) and a supply outlet arranged underneath the charging inlet. A delivery inlet portion (37) of the lifting and delivery device (34) that is located at the bottom is in delivery engagement with the outlet of the supply arrangement under the influence of gravity. A baking system (1) with such a charging arrangement (9) can be easily operated and does not require the continuous presence of an operator. Furthermore, it can have an optically attractive design.Type: GrantFiled: June 10, 2004Date of Patent: July 24, 2007Assignee: Werner & Pfleiderer Lebensmitteltechnik GmbHInventors: Bernd Dannenhauer, Frank Blümel, Thomas Schmidt
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Patent number: 7228791Abstract: A baking oven for preparing dough pieces comprises a supply section with an inlet for the supply of dough pieces; a baking chamber and a discharge section with an outlet for the discharge of baked dough pieces. A recirculating-air arrangement comprises a source producing a flow of recirculating air, a recirculating-air heating device and a recirculating-air guiding conduit which is sectionally formed by the baking chamber. A conveyor assembly delivers dough pieces from the inlet to the outlet. To this end, the conveyor assembly comprises a plurality of continuous conveyor belts which pass along deflection pulleys and are disposed one in relation to the other in the baking chamber for transfer by gravity of the dough pieces from one to another of two adjacent continuous conveyor belts. The result is a baking oven in which, during baking, the dough pieces can be moved and spread as uniformly as possible.Type: GrantFiled: September 14, 2004Date of Patent: June 12, 2007Assignee: Werner & Pfleiderer Lebensmitteltechnik GmbHInventors: Christian Habermann, Alexander Meier, Dieter Knost
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Patent number: 7156293Abstract: A device for the production and the sale of dough pieces comprises at least a first supply bin for keeping a pre-determined first quantity of the raw dough pieces. A first recording unit serves the recording of a customer request. A display device serves the display of a price for the recorded customer request. A payment transaction is recorded by means of a second recording unit. A baking device serves the baking of raw dough pieces pursuant to the customer's request to ready-baked dough pieces. The ready-baked dough pieces are made available in at least one supply bin that is accessible to the customer. Two delivery units serve the delivery of the raw dough pieces and/or of the ready-baked dough pieces from the first supply bin to the baking device and/or from baking device to the second supply bin. Depending upon the data recorded by the recording units, a control unit controls the delivery units and the baking device.Type: GrantFiled: September 17, 2004Date of Patent: January 2, 2007Assignee: Werner & Pfleiderer Lebensmitteltechnik GmbHInventors: Dieter Knost, Thomas Schmidt, Alexander Meier, Christian Habermann, Bernd Dannenhauer, Frank Blümel
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Patent number: 7077558Abstract: A dough treatment facility comprises, among other things, a dough kneading arrangement, which comprises an inner kneading drum, an outer kneading drum which is moved in relation thereto within the scope of a kneading motion, and a plurality of kneading compartments which are at least partially defined by the kneading drums. The kneading motion is actuated by means of a kneading drive. This drive comprises a first drive component for rotation of the inner kneading drum, a second drive component for rotation of the outer kneading drum, and a third drive component for periodic motion of the outer kneading drum relative to the inner kneading drum, this motion having a motional component parallel to the longitudinal axis of the kneading drums. A kneading drive gear actuates the driving motions of the three drive components, derived from the motion of a single transmission shaft.Type: GrantFiled: February 17, 2004Date of Patent: July 18, 2006Assignee: Werner & Pfleiderer Lebensmitteltechnik GmbHInventor: Ferdinand Bodenstorfer
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Patent number: 7004743Abstract: An installation for the treatment and further processing of thermoplastics comprises a screw-type compounding unit, downstream of which is disposed an intermittently drivable processing unit. Provision is made for a control unit which is connected with a drive of the screw-type compounding unit and with the drive of a metering device and with a drive of the processing unit. The control unit is designed for triggering the drives by the cycle time of the processing unit, the drives having identical run-up times and identical deceleration times.Type: GrantFiled: April 11, 2001Date of Patent: February 28, 2006Assignee: Krupp Werner & Pfleiderer GmbH & Co. KGInventors: Klaus Kapfer, Daniel Schwendemann
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Patent number: 6997105Abstract: A separation device for dough pieces (2) is provided with an inlet portion for delivering a plurality of dough pieces (2), a separation unit (26) for separating the dough pieces (2) delivered and an outlet portion (27) for individually discharging the dough pieces (2) separated from one another. The separation unit (26) comprises a container (28) having a container bottom (31) which is divided into a round inner portion (33) to which the dough pieces (2) are delivered and an outer portion (34), extending at least partially around the inner portion (33). The outer portion (34) can be caused to rotate relative to the inner portion (33) around an axis of rotation extending perpendicular to the container bottom plane and is arranged in conveying connection with the outlet portion (27). Such a separation device reliably separates a plurality of dough pieces.Type: GrantFiled: June 10, 2004Date of Patent: February 14, 2006Assignee: Werner & Pfleiderer Lebensmitteltechnik GmbHInventors: Bernd Dannenhauer, Frank Blümel, Thomas Schmidt
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Publication number: 20050235836Abstract: A baking oven is provided with a baking oven housing with a baking chamber. The latter is divided into at least two baking zones each of them being provided with at least one own baking oven supply inlet for the feeding of dough pieces. At least one delivery outlet is used for the delivery of the dough pieces. A first one of the at least two baking zones is configured so that a plurality of dough pieces available and conveyed on the supply side as bulk material is being baked there. A second one of the at least two baking zones is configured so that a plurality of dough pieces which are available and conveyed as individual pieces are being baked there. More-over, baking oven is provided with a circulating air source and a means of conveyance for conveying the dough pieces from the supply inlet through the baking chamber to the delivery outlet. A baking system with such a baking oven is furthermore provided with an upstream means of conveyance for conveying dough pieces to the baking oven.Type: ApplicationFiled: April 27, 2005Publication date: October 27, 2005Applicant: Werner & Pfleiderer Lebensmitteltechnik GmbHInventors: Dieter Knost, Bernd Dannenhauer
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Publication number: 20050183586Abstract: A baking oven comprises a feeding portion having a feeding aperture for introducing dough pieces, a baking chamber and a discharge portion having a discharge aperture for removing dough pieces. In addition, a circulating air unit is provided which comprises a circulating air source generating a circulating air flow, a circulating air heating means and a circulating air guiding channel a part of which is formed by the baking chamber. A plurality of receptacles for dough pieces are mounted in the baking chamber to be freely rotatable or pivotable around a horizontal rotation or pivot axis. The rotation or pivot axes of the receptacles are located higher than the centre of gravity of the receptacles even if the receptacles are filled with dough pieces. As a result, a baking oven is provided in which the dough pieces can be distributed as evenly as possible and moved along during the baking process.Type: ApplicationFiled: June 24, 2004Publication date: August 25, 2005Applicant: Werner & Pfleiderer Lebensmitteltechnik GmbHInventors: Frank Blumel, Bernd Dannenhauer, Dieter Knost, Rudolf Fiedler, Thomas Schmidt
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Publication number: 20050128862Abstract: A dough treatment facility comprises, among other things, a dough kneading arrangement, which comprises an inner kneading drum, an outer kneading drum which is moved in relation thereto within the scope of a kneading motion, and a plurality of kneading compartments which are at least partially defined by the kneading drums. The kneading motion is actuated by means of a kneading drive. This drive comprises a first drive component for rotation of the inner kneading drum, a second drive component for rotation of the outer kneading drum, and a third drive component for periodic motion of the outer kneading drum relative to the inner kneading drum, this motion having a motional component parallel to the longitudinal axis of the kneading drums. A kneading drive gear actuates the driving motions of the three drive components, derived from the motion of a single transmission shaft.Type: ApplicationFiled: February 17, 2004Publication date: June 16, 2005Applicant: WERNER & PFLEIDERER LEBENSMITTELTECHNIK GMBHInventor: Ferdinand Bodenstorfer
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Publication number: 20050061869Abstract: A device for the production and the sale of dough pieces comprises at least a first supply bin for keeping a pre-determined first quantity of the raw dough pieces. A first recording unit serves the recording of a customer request. A display device serves the display of a price for the recorded customer request. A payment transaction is recorded by means of a second recording unit. A baking device serves the baking of raw dough pieces pursuant to the customer's request to ready-baked dough pieces. The ready-baked dough pieces are made available in at least one supply bin that is accessible to the customer. Two delivery units serve the delivery of the raw dough pieces and/or of the ready-baked dough pieces from the first supply bin to the baking device and/or from baking device to the second supply bin. Depending upon the data recorded by the recording units, a control unit controls the delivery units and the baking device.Type: ApplicationFiled: September 17, 2004Publication date: March 24, 2005Applicant: Werner & Pfleiderer Lebensmitteltechnik GmbHInventors: Dieter Knost, Thomas Schmidt, Alexander Meier, Christian Habermann, Bernd Dannenhauer, Frank Blumel
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Publication number: 20050056156Abstract: A baking oven for preparing dough pieces comprises a supply section with an inlet for the supply of dough pieces; a baking chamber and a discharge section with an outlet for the discharge of baked dough pieces. A recirculating-air arrangement comprises a source producing a flow of recirculating air, a recirculating-air heating device and a recirculating-air guiding conduit which is sectionally formed by the baking chamber. A conveyor assembly delivers dough pieces from the inlet to the outlet. To this end, the conveyor assembly comprises a plurality of continuous conveyor belts which pass along deflection pulleys and are disposed one in relation to the other in the baking chamber for transfer by gravity of the dough pieces from one to another of two adjacent continuous conveyor belts. The result is a baking oven in which, during baking, the dough pieces can be moved and spread as uniformly as possible.Type: ApplicationFiled: September 14, 2004Publication date: March 17, 2005Applicant: Werner & Pfleiderer Lebensmitteltechnik GmbHInventors: Christian Habermann, Alexander Meier, Dieter Knost
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Publication number: 20050022803Abstract: A charging arrangement for a baking oven (8) is provided with a supply arrangement (9) for dough pieces (4) and a lifting and delivery device (34) for the dough pieces (4). The supply arrangement (9) is provided with a charging inlet, at least one supply bin (10, 23) and a supply outlet arranged underneath the charging inlet. A delivery inlet portion (37) of the lifting and delivery device (34) that is located at the bottom is in delivery engagement with the outlet of the supply arrangement under the influence of gravity. A baking system (1) with such a charging arrangement (9) can be easily operated and does not require the continuous presence of an operator. Furthermore, it can have an optically attractive design.Type: ApplicationFiled: June 10, 2004Publication date: February 3, 2005Applicant: Werner & Pfleiderer Lebensmitteltechnik GmbHInventors: Bernd Dannenhauer, Frank Blumel, Thomas Schmidt
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Publication number: 20050022677Abstract: A separation device for dough pieces (2) is provided with an inlet portion for delivering a plurality of dough pieces (2), a separation unit (26) for separating the dough pieces (2) delivered and an outlet portion (27) for individually discharging the dough pieces (2) separated from one another. The separation unit (26) comprises a container (28) having a container bottom (31) which is divided into a round inner portion (33) to which the dough pieces (2) are delivered and an outer portion (34), extending at least partially around the inner portion (33). The outer portion (34) can be caused to rotate relative to the inner portion (33) around an axis of rotation extending perpendicular to the container bottom plane and is arranged in conveying connection with the outlet portion (27). Such a separation device reliably separates a plurality of dough pieces.Type: ApplicationFiled: June 10, 2004Publication date: February 3, 2005Applicant: WERNER & PFLEIDERER LEBENSMITTELTECHNIK GMBHInventors: Bernd Dannenhauer, Frank Blumel, Thomas Schmidt