Patents Assigned to Fette GmbH
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Publication number: 20090074900Abstract: A visual monitoring device for rotary presses, in which a rotor, with upper and lower punches and a die plate, at least one compression station, at least one filling station, and at least one ejector station are arranged in a housing, at which individual process steps occur, characterized in that arranged in the housing is at least one high speed camera, whose lens is directed onto a location in the housing, and to which an image analysis device is connected.Type: ApplicationFiled: September 10, 2008Publication date: March 19, 2009Applicant: Fette GmbHInventors: Matthias Meier, Ingo Schmidt, Peter Lueneburg
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Publication number: 20090074901Abstract: A rotor for a rotary tablet press, which has an upper and a lower punch guiding for upper and lower punches, which co-operate with bores of a die plate which is arranged between the upper and the lower punch guiding, wherein the punches have shafts, which are sealedly axially movable in guiding bores of the punch guidings by means of a sealing arrangement, and wherein means act between the shafts and the guiding bores which prevent a rotation of the pressing punches in the punch guidings, characterised in that the shafts have an out of round profile in the cross section, and the cross section of the guiding bores is complementary.Type: ApplicationFiled: September 11, 2008Publication date: March 19, 2009Applicant: Fette GmbHInventors: Friedrich Meissner, Wolfgang Soltau, Jan Naeve, Peter Lueneburg
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Patent number: 7490533Abstract: Method for making a form-fitting connection between a tool insert and a tool holder of a rotatingly driven tool, wherein the tool holder has bearing surfaces by which forces or torques are transmitted to the tool insert, wherein the tool insert is made from a material harder than that of the tool holder and by sintering a green compact of powder. A sintered green compact for the tool insert is used as a hob, by which the bearing surfaces in tool holders are manufactured by punching or press-forming.Type: GrantFiled: July 13, 2006Date of Patent: February 17, 2009Assignee: Fette GmbHInventors: Gerhard Dehn, Christian Gutsche, Michael Kugolowski
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Patent number: 7491052Abstract: A rotor for a tablet press including an upper-ram receptacle for the upper rams and a lower-ram guide for the lower rams of the tablet press, as well as a retainer plate having a series of die-bores which are oriented towards the upper and lower rams wherein the retainer plate is composed of at least two ring segments which are adapted to be mounted non-positively and/or positively to the body of the lower-ram guide by means of a fixing device.Type: GrantFiled: October 10, 2006Date of Patent: February 17, 2009Assignee: Fette GmbHInventors: Jurgen Hinzpeter, Ulrich Zeuschner, Peter Luneburg, Ulrich Arndt, Hans Wolf, Matthias Rau
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Publication number: 20090035413Abstract: A stand for a rotary tablet press, which supports a rotor with electric drive motor on a horizontal carrying element, with damping means between the stand and an underframe supporting itself on the ground for the purpose of vibration uncoupling between stand and underframe, wherein a first horizontal carrying element supports the rotor with the drive motor and a lower pressing roller unit of a least one pressing station, a second horizontal carrying element which is arranged in a distance above the first carrying element holds an upper pressing roller unit belonging to the pressing station, the first and the second carrying element are fixedly connected with each other via at least two vertical supports, and the supports rest on the underframe via damping means.Type: ApplicationFiled: August 1, 2008Publication date: February 5, 2009Applicant: Fette GmbHInventors: Frank Schade, Jan Naeve, Ulrich Arndt
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Publication number: 20090026897Abstract: System for the production of preforms made of a powder material, in particular tablets, with a rotary tablet press, which is arranged in a housing supported by a frame in the housing, wherein an electric drive motor is integrated into the rotor of the tablet press and the rotor is swivel-mounted on a middle column of the frame, and a control cabinet for the tablet press, which contains among other things a machine computer for the operation of the tablet press, wherein the middle column is supported on a horizontal load-bearing element, which is arranged at a distance above a base plate placed on the floor and the control cabinet is arranged in the interim space between the horizontal load-bearing element and the base plate.Type: ApplicationFiled: July 18, 2008Publication date: January 29, 2009Applicant: FETTE GMBHInventors: Werner Seifert, Ingo Schmidt, Joachim Greve, Alexander Oldenburg
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Publication number: 20090027854Abstract: A cooling system for a rotary tablet press with which a rotor is driven by an electrical drive motor and the rotor and drive motor are arranged in a closed housing, and a control cabinet for the drive motor and further units in the housing, wherein arranged within the housing is a cooling machine whose evaporator is part of a first heat exchanger, whose other part is arranged in a coolant circuit for the drive motor, a fan is arranged in a channel in the housing closed relative to the housing interior, where the fan draws cool air in via an air inlet of the housing and gives it off via an air outlet of the housing, wherein the cool air is engaged in heat exchange with a condenser of the cooling machine.Type: ApplicationFiled: July 18, 2008Publication date: January 29, 2009Applicant: Fette GmbHInventors: Harald Romer, Ingo Schmidt, Werner Seifert, Peter Luneburg
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Patent number: 7471992Abstract: Method for the automatic control of the amount of active ingredient of tablets during the production in a rotary tablet press, which has a die table with die bores, upper and lower punches assigned to the die bores, a filling station, a metering cam for the lower punches in the filling station, at least one pressing station with at least one upper and one lower pressing roller, wherein at least the lower pressing roller is adjustable with respect to the other pressing roller by means of a pressing roller adjustment equipment, a metering cam adjustment equipment for height adjustment of the metering cam, a compression force measuring equipment at the pressing station, a control and operating computer and an active ingredient measuring equipment, characterized by the following procedural steps: during the tablet production, the amount of active ingredient of tablets is measured and values for the amount of active ingredient are compared with a predetermined desired active ingredient value in the control and opeType: GrantFiled: April 5, 2007Date of Patent: December 30, 2008Assignee: Fette GmbHInventors: Ingo Schmidt, Ines Andersen
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Publication number: 20080267722Abstract: An indexable milling insert which is attachable on a rotatable tool holder, preferably under an axial angle different from zero, and which is formed by a trapezoidal insert body, with a substantially planar bearing surface, a further substantially planar surface opposite to the same, and with lateral surfaces formed between the same as well as with opposing cutting edges with associated faces and clearance surfaces adjacent to the same, wherein the faces are formed by one worked-in groove and the clearance surfaces by one lateral surface of the insert body at a time, characterised in that the insert body is provided in the form of an equal-sided lozenge with cutting edges on all the edges of the lozenge, wherein on each flat side, two approximately parallel cutting edges with associated faces are provided at a time, and the pairs of cutting edges of one flat side at a time are associated to different edge pairs of the lozenge.Type: ApplicationFiled: April 15, 2008Publication date: October 30, 2008Applicant: FETTE GMBHInventor: Thomas Jacob
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Publication number: 20080257689Abstract: An apparatus for conveying and dedusting of tablets or like pellets from a tablet press, with a vertically arranged vibration-screw conveyor, which has a lower inlet and an upper outlet, where the screw conveyor has at least two screw channels, to which, in each case, an inlet and an outlet are assigned.Type: ApplicationFiled: April 3, 2008Publication date: October 23, 2008Applicant: Fette GmbHInventor: Harald Romer
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Publication number: 20080256910Abstract: An apparatus for the elimination of dusts from gases, with a filter arrangement, which is flown through by a loaded volume flow, and a cyclone which is arranged upstream to the filter arrangement, wherein a collector funnel below the filter arrangement forms the cover of the cyclone, wherein a branch stub forming the dust outlet opening of the collector funnel forms the dip pipe of the cyclone and an outlet opening of the cyclone is connected to a dust collector tank arranged under it.Type: ApplicationFiled: March 25, 2008Publication date: October 23, 2008Applicant: Fette GmbhInventors: Detlef Nuppenau, Gabriele Oelerich, Dieter Schmidt, Eugen Kruger, Regine Wrage, Harald Romer
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Publication number: 20080237097Abstract: Apparatus for the outflow of pressed items from a rotary press, with a first channel section connecting directly to the rotary press, to which at least two channel sections are connected, to which a deflector is attached, which is swivel mounted at an axis almost vertical to the longitudinal extension of the first and/or second channel section and optionally connects the first channel section with one of the other channel sections and a pivot drive for the deflector below or above the channel sections, characterized in that a bearing pin for the deflector is connected in a torque-proof manner with a channel section and the swivel drive is coupled with the deflector via a magnetic coupling eccentric to the bearing pin.Type: ApplicationFiled: March 13, 2008Publication date: October 2, 2008Applicant: Fette GmbHInventors: Sven Kolbe, Ulrich Arndt
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Publication number: 20080223009Abstract: A filtering plant for removing dusts from gases, with a plurality of filter units, which are parallel connected to a line for crude gas and the outlets thereof are parallel connected to a line for purified gas, wherein an extraction blowing engine is connected to the line for purified gas, further with an apparatus for cleaning the filter units, which has a lower collecting space for the filter cake with a discharge opening with flap on the lower end of the collecting space, characterised in that the dust discharge openings of all the filter units except one are connected to a common collecting main and the collecting main is connected to the crude gas region of the one filter unit.Type: ApplicationFiled: December 20, 2007Publication date: September 18, 2008Applicant: Fette GmbHInventors: Harald Romer, Detlef Nuppenau, Eugen Kruger, Dieter Schmidt, Michael Markl, Bernd Granzow, Jens Mannshardt
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Publication number: 20080207342Abstract: A rotatingly drivable cutting head with at least one cutting insert, which has a cutting profile tool for radial engagement into a workpiece, the one axis of which is in the rotational axis of the cutting head, wherein cutting head and workpiece are moved axially and in the rotational direction with respect to each other, wherein the cutting insert is detachably attachable on a holding element of the cutting head, wherein further the holding element and with it the cutting insect is radially movable between a working position and a releasing position, and with locking means for positioning the cutting insert in the working position and shifting means for shifting the cutting insert from the working position into the releasing position and vice versa, wherein the cutting insert has an axis which runs parallel to the rotational axis in a distance, the cutting insert is attachable on the holding element in at least two rotational positions in an angular distance when it is rotated around its axis, and in every rType: ApplicationFiled: February 11, 2008Publication date: August 28, 2008Applicant: Fette GmbHInventors: Detlef Adam, Roland Wohl, Andreas Focken
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Patent number: 7374414Abstract: Rotary press with a rotor, rotatingly drivable around a vertical axis of rotation, which has a die plate with die bores and upper and lower punches guided in guidings, radial cams for the upper and lower punches, at least one compression station with upper and lower pressing roller, at least one filling equipment and at least one stripping device for pressed articles which are ejected from the die bores, characterized in that the rotor has an annular plane situated radially outside of the graduated circle for the die bores, which is concentric to the axis of rotation and is lowered with respect to the upper side of the die plate about a predetermined degree, first deflection portion direct the ejected pressed articles to the annular plane and second deflection portion direct the pressed articles from the annular plane towards the outside.Type: GrantFiled: May 12, 2006Date of Patent: May 20, 2008Assignee: Fette GmbHInventors: Harald Römer, Ulrich Zeuschner, Thorsten Ehrich, Kurt Marquardt
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Patent number: 7364420Abstract: Rotary press for making tablets with a rotor, which rotor exhibits a die plate and guides for the upper and lower punches, a rotor shaft and an electric drive motor, which electric drive motor rotates the rotor shaft and exhibits a runner and a stator, wherein the runner is disposed directly on the rotor shaft in a torque proof manner or is coupled coaxially with the rotor shaft in a torque proof mannerType: GrantFiled: August 15, 2005Date of Patent: April 29, 2008Assignee: Fette GmbHInventors: Peter Luneburg, Ingo Schmidt, Joachim Greve, Ulrich Arndt, Alexander Oldenburg
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Patent number: 7360483Abstract: A device for the guidance of lower rams across the lower-ram head in a rotor-type rotary press in the area of a filling device wherein a charging cam is disposed between an ejector cam which precedes as viewed in the direction of production and a proportioning cam adjustable in height and is configured such as to lower the heads of the lower rams revolving along with the rotor from the level at the end of the ejector cam to a lower-located transition level of the proportioning cam, a press-mounted, first charging-cam element having a first filling-cam portion joining the ejector cam is provided on which the lower-ram heads are guided solely on the side facing the rotor axis subsequent to the ejector cam, an adjustable second charging-cam element is provided and has a second filling-cam portion on which the lower-ram heads are guided solely on the side facing away from the rotor axis before encountering the proportioning cam, that the second charging-cam element is displaceable both vertically and in the circuType: GrantFiled: April 12, 2007Date of Patent: April 22, 2008Assignee: Fette GmbHInventors: Harald Romer, Peter Luneburg, Bernd Malner, Hans Wolf
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Patent number: 7351048Abstract: Powder press for the production of pressed articles of powder-shaped pressing material, having the following characteristics: a female mould plate with a least two female moulds or one female mould with at least two female die bores, at least two upper plungers, which co-operate with the female moulds and the female die bores, respectively, hydraulic cylinder for the upper plungers at least two bottom plungers, which co-operate with the female moulds and the female die bores, respectively hydraulic cylinders for the bottom plungers at least one position sensor for the upper plungers, and at least one position sensor for the bottom plungers force sensors for the individual hydraulic cylinders and a controlling means for the hydraulic cylinder or the hydraulic cylinders for the upper plungers and each one controlling means for the hydraulic cylinders for the bottom plungers.Type: GrantFiled: February 16, 2005Date of Patent: April 1, 2008Assignee: Fette GmbHInventors: Jurgen Hinzpeter, Ingo Schmidt, Andreas Groth, Andreas Teetzen, Thomas Pannewitz, Holger Behns
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Publication number: 20080063482Abstract: A disc-shaped mill cutting tool, with a disc-shaped main body which has a central axial through bore for the accommodation of a drive shaft as well as a plurality of pockets for the accommodation of cutting inserts on its perimeter, wherein chip spaces are associated to the pockets and a channel system is arranged between the central through bore and the chip spaces for the passage of cooling fluid which emerges in the chip spaces, characterised in that the disc-shaped main body is formed by at least two sub-discs coaxially sitting close together, which form a concentrically arranged ring channel between themselves, which is connected to the through bore via at least one connection channel, and the ring channel is connected to the chip spaces via relatively short bore portions.Type: ApplicationFiled: September 7, 2007Publication date: March 13, 2008Applicant: Fette GmbHInventor: Achim Engfer
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Patent number: 7325672Abstract: A device for stopping a continuous product stream of the products of a rotary press, with a height conveyor which has a lower loading region to which the products are supplied via a first conveying means, and an upper delivery region, from which the products are conveyed to a reception container via a second conveying means, wherein on the downstream side of the delivery region of the height conveyor a switch is assigned to the second conveying means, a third conveying device being connected to this switch, the lower end of which is assigned to the loading region of the height conveyor, so that the products are supplied to the second or third conveying means depending on the condition of the switchType: GrantFiled: December 21, 2006Date of Patent: February 5, 2008Assignee: Fette GmbHInventors: Detlef Nuppenau, Harald Romer, Sven Kolbe, Frank Schade