Patents Assigned to Gebruder Buhler AG
  • Patent number: 5301811
    Abstract: An apparatus for separating grain material and for sorting out heavy inclusions from a product flow, particularly stones from gain material, in which the product flow is fed to an inclined layering table and guided so as to be substantially layered thereon. The layering table being acted upon by air flow and oscillated in such a way that the heavy inclusions lying directly thereon are conveyed up the table and guided away separately at the higher end. The feeding of the product flow is effected by way of a feed duct which opens to into the area of the higher end of the table and feeds the product into the separating zone of the product layers as a flow across the widest possible surface area, the separating zone being located in the area of the higher end of the table. The table has air guides for circulating. On an upper side, a closed hood is arranged and on an end side, a product feed portion is arranged. In the middle thereof, an outlet suction portion coupled to the closed hood is arranged.
    Type: Grant
    Filed: September 24, 1992
    Date of Patent: April 12, 1994
    Assignee: Gebruder Buhler AG
    Inventor: Roman Mueller
  • Patent number: 5038973
    Abstract: Vessel balance for bulk material having a tubular balance section for feed therethrough of bulk material. The balance is adapted during feed intervals of the bulk material to enable determination of the weight thereof. The section cooperates with a feed flap adjacent one of its ends to govern entry of the material into the section and has a closing member at an opposite end. The section and member are supported by at least two weight measuring elements carried by a fixed platform.
    Type: Grant
    Filed: March 16, 1989
    Date of Patent: August 13, 1991
    Assignee: Gebruder Buhler, AG
    Inventor: Bruno Gmur
  • Patent number: 5026567
    Abstract: A description is provided of a process for producing long products with a moisture content of less than approximately 14% by weight and particularly approximately 11 to 13% by weight, the long product leaving the press head in the form of soft, moist-plastic dough strands being guided in suspended manner up to the final drying through varyingly heated climate zones and at the end of the drying process, the long product is cooled and/or dimensionally stabilized in a further climate zone. The long product leaving the press is heated as rapidly as possible in a first climate zone, but in more than 10 minutes to a temperature of more than approximately 80.degree. C. under the action of a heating medium with a relative humidity of approximately 60 to 80% and then in a second climate zone under the action of a drying medium with a temperature of over approximately 80.degree. C.
    Type: Grant
    Filed: April 25, 1988
    Date of Patent: June 25, 1991
    Assignee: Gebruder Buhler AG
    Inventors: Josef Manser, Friedrich Egger, Werner Seiler
  • Patent number: 5018648
    Abstract: A two-cylinder discharge for a storage silo for farinaceous bulk goods. The discharge includes a discharge hopper and at least two discharge cylinders which are supported so as to be rotatable in the discharge hopper. The two discharge cylinders include a plurality of discharge chambers arranged in a circumferential direction of the cylinders. A gap exists between the discharge chambers and guide walls of the silo.
    Type: Grant
    Filed: May 29, 1990
    Date of Patent: May 28, 1991
    Assignee: Gebruder Buhler AG
    Inventor: Bruno Gmur
  • Patent number: 4971684
    Abstract: A size grading unit and a gravity grading unit in a grinding preparation installation form an oscillating unit and are arranged one above the other so that a V-shaped space exists between them. The product flow transfers as a carpet or veil falling from the size grading unit at the V apex to the gravity grading unit located below. Air flows through the V-shaped space but not through the size grading unit.
    Type: Grant
    Filed: September 22, 1988
    Date of Patent: November 20, 1990
    Assignee: Gebruder Buhler AG
    Inventor: Roman Mueller
  • Patent number: 4859482
    Abstract: For the recovery of the protein from oil seeds, particularly from soy beans, grinding is effected under omission of a suspension liquid, i.e. substantially in dry condition of the oil seed, by applying pressure and friction until the cell walls of the oil seed are opened. This is preferably realized on a friction roller refiner comprising at least two rollers of different speed, i.e. for example on a three-roller-refiner, a five-roller-refiner or also at least two two-roller-refiners. Surprisingly, in this way the expenditure in energy is reduced and the quality of the product is improved.
    Type: Grant
    Filed: September 21, 1988
    Date of Patent: August 22, 1989
    Assignee: Gebruder Buhler AG
    Inventors: Michel Gavin, Urs Grunder, Karl Ulmer
  • Patent number: 4830866
    Abstract: A process is described for manufacturing of farinaceous products in which the soft farinaceous product leaving a molding head is conveyed through differentially heated climatic zone and is cooled and/or dimensionally stabilized after completion of the drying process. The farinaceous product is heated to a temperature of 80.degree. to 100.degree. C. with at least slight initial drying and freshly expanded superheated steam is then allowed to flow around it for about 30 seconds to 20 minutes. In this process the native starch of the boundary layer of the farinaceous product is converted into swelling starch. Finally the farinaceous product is dried in a controlled drying climate.
    Type: Grant
    Filed: August 25, 1986
    Date of Patent: May 16, 1989
    Assignee: Gebruder Buhler AG
    Inventors: Josef Manser, Werner Seiler, Friedrich Egger
  • Patent number: 4770621
    Abstract: Attached to the eccentric studs (25) for supporting and positioning press rollers (b 20) relative to an inner surface of the die (21) of a pellet mill are levers (30). Linked to the levers (30) is a cylinder/piston unit (31) that is provided with a position controller (47) whose position measuring means is constructed as part of the adjusting means (31) for the position of the press rollers (20). In this fashion, the gaps between press rollers (20) and die (21) can be regulated very exactly from the outside.
    Type: Grant
    Filed: January 22, 1987
    Date of Patent: September 13, 1988
    Assignee: Gebruder Buhler AG
    Inventors: Werner Groebli, Hugo Hegelbach, Hanspeter Schaffner
  • Patent number: 4746070
    Abstract: The two feed rolls of a roll refiner comprising at least four rolls for processing viscous materials, such as chocolate masses, are regulated with respect to their rotational speeds by means of a suitable regulating system. The two feed rolls rotate in a fixed speed ratio to each other at speeds determined by the prevailing operating conditions. The particle size and/or the output quantity of the processed material may be held constant by this regulation.
    Type: Grant
    Filed: July 22, 1986
    Date of Patent: May 24, 1988
    Assignee: Gebruder Buhler AG
    Inventor: Werner R. Kuster
  • Patent number: 4743190
    Abstract: An injection unit for an injection molding or die-casting machine comprises an injection ram which injects molten material out of an injection sleeve into a mold or die during a filling phase. This injection ram is connected to a drive piston which is movable within a drive cylinder for actuating the injection ram. The whole ram unit, comprising the injection ram and the drive piston, consists of at least two parts releasably connected together. A control device for the movement of the injection ram during the different phases of injection comprises a control valve. A signal transfer arrangement is interconnected between this control valve and the ram unit which is provided with a damping arrangement so that its releasably connected parts are movable relative to each other.
    Type: Grant
    Filed: October 17, 1986
    Date of Patent: May 10, 1988
    Assignee: Gebruder Buhler AG
    Inventors: Daniel Brunnschweiler, Alfred Hagmann, Leo Iten, Leo Strotz, Walter Uhlmann
  • Patent number: 4742228
    Abstract: In an infrared measuring apparatus for the continuous quantitative determination of individual components of flour or other groundable food products in a tubular measurement segment (24) with forced transport (27) of the material to be measured, equipment (29, 31, 32, 33, 34) is provided for consolidating the material to be measured in the region of a sensor (20) for the measurement of the consolidated material. In the corresponding measurement process, the groundable product is passed over a measurement segment (24), a slight compression and smoothening of the groundable product being achieved in the region of the sensor (30).
    Type: Grant
    Filed: December 9, 1985
    Date of Patent: May 3, 1988
    Assignee: Gebruder Buhler AG
    Inventor: Bruno Bischoff
  • Patent number: 4730789
    Abstract: An agitator mill has an arrangement for diminishing the pressure of the attritive elements towards the outlet. This arrangement comprises particularly means for generating a force pointing away from at least one separator opening forming a passage for the product, but retaining the attritive elements within the milling container. This force affects substantially selectively only the attritive elements. According to one embodiment, this force acts upon the attritive elements in counter-direction to the direction of flow of the product. The force may either be a centrifugal force acting selectively onto the relative large mass of the attritive element or a magnetic force acting selectively upon steel balls, iron balls or the like used as attritive elements.
    Type: Grant
    Filed: November 17, 1983
    Date of Patent: March 15, 1988
    Assignee: Gebruder Buhler AG
    Inventor: Armin Geiger
  • Patent number: 4721561
    Abstract: A centrifugal force separator for broken grains, husks, dust and other impurities from air has a pre-separating chamber (2) with a tangential raw gas inlet (1), in which a cylindrical deflecting screen (4) and a clean gas outlet (5) axially adjoining the latter are concentrically arranged. To increase the degree of dust separation at only a slight pressure loss and in the case of an inexpensive construction, and also to enable application in return-air systems in combination with other cereal crop cleaning and processing machines, a pre-separating chamber (X) for an air circulation is provided radially outside the deflecting screen (4), and an air discharge (Y) is provided radially inside the deflecting screen (4), which air discharge (Y) is in flow connection with the pre-separating chamber (X) via air passage channels (17) in the deflecting chamber (4).
    Type: Grant
    Filed: November 26, 1985
    Date of Patent: January 26, 1988
    Assignee: Gebruder Buhler AG
    Inventors: Hans Oetiker, Franz Reichmuth
  • Patent number: 4711622
    Abstract: A pellet mill comprises a die which may rotatably be driven by a suitable drive. At least one press roller engages the inner surface of this die, and material to be pelleted is fed to this press roller by means of a deflector blade situated before. This deflector blade is arranged at least 45.degree. before the related press roller--as seen in the direction of the rotation of the die--so that a free space of at least 45.degree. will result therebetween. Within this free space, the centrifugal force due to the rotation of the die becomes effective and contributes to a better distribution of the material.
    Type: Grant
    Filed: June 12, 1985
    Date of Patent: December 8, 1987
    Assignee: Gebruder Buhler AG
    Inventor: Hanspeter Schaffner
  • Patent number: 4708620
    Abstract: In a die-casting or injection molding machine transducers are provided for generating a signal corresponding to the injection pressure as well as a signal in accordance with the velocity of the ram device, i.e. the injection screw or the injection piston of the machine. The output signals of these transducers are supplied to a calculating stage for calculating the actual injection power. The resulting signal at the output of the calculating stage is fed to an evaluation device, preferably comprising an indicating device, but also a control circuit, if desired.
    Type: Grant
    Filed: April 25, 1986
    Date of Patent: November 24, 1987
    Assignee: Gebruder Buhler AG
    Inventor: Werner Brugger
  • Patent number: 4704845
    Abstract: The process serves for closing filled bags (52) making use of an approximately horizontal conveying track (3). The bags are fed on a conveying track with constant conveying speed to a spreading apparatus (16 to 51) and then to a closing station (12, 13). In order that the bag material be stressed as little as possible in the case of a greater capacity, provision is made for a movement to be superimposed on the spreading tools (21) of the spreading apparatus during the spreading process, in the conveying direction (4), that attains the conveying speed, at latest, at the end of the spreading process. In this fashion, the bag end is spread apart without the bag experiencing a delay by the spreading tools (21) reaching therein.
    Type: Grant
    Filed: May 8, 1986
    Date of Patent: November 10, 1987
    Assignee: Gebruder Buhler AG
    Inventor: Gmur Bruno
  • Patent number: 4657773
    Abstract: For dressing, seed is thrown off in dispensed doses into a trough-shaped rotary table (36) in the form of a free-falling annular veil. During its freefall, the seed is guided through a jet of dressing in the form of an annular surface, which is thrown outwards from the interior of the annular veil and which is generated when dressing is thrown out via a centrifugal plate (36), and is wetted with dressing. During the subsequent throwing out on the rotary table (9), the seed is subjected again to dressing which is finely distributed on and massaged into the grain surface because the seed grains roll on the rotary table (9) continuously and at the same time strike against one another and rub on one another.
    Type: Grant
    Filed: October 21, 1985
    Date of Patent: April 14, 1987
    Assignee: Gebruder Buhler AG
    Inventor: Roman Mueller
  • Patent number: 4635861
    Abstract: A roller mill, in which the milling rollers are pressed together with high pressures, has a fluidic device for imparting the respective pressure. This fluidic device comprises piston-cylinder units and a pressure line for the fluid. In order to obtain a skewing of at least one roller in dependency upon the pressure exerted by the fluidic device, pressure sensitive means are interposed between the pressure line and a displacing device for the skewing angle. In this way, a pressure signal may be transferred to a converter for converting the pressure into a corresponding displacement stroke. Preferably, at least one roller has a basic camber or crown which corresponds to a pressure within a lower range of the occurring pressures.
    Type: Grant
    Filed: February 7, 1985
    Date of Patent: January 13, 1987
    Assignee: Gebruder Buhler AG
    Inventor: Heinz Resch
  • Patent number: 4600374
    Abstract: In a die-casting or injection molding machine transducers are provided for generating a signal corresponding to the injection pressure as well as a signal in accordance with the velocity of the ram device, i.e. the injection screw or the injection piston of the machine. The output signals of these transducers are supplied to a calculating stage for calculating the actual injection power. The resulting signal at the output of the calculating stage is fed to an evaluation device, preferably comprising an indicating device.
    Type: Grant
    Filed: April 18, 1985
    Date of Patent: July 15, 1986
    Assignee: Gebruder Buhler AG
    Inventor: Werner Brugger
  • Patent number: 4597405
    Abstract: FIG. 2 illustrates a process and an apparatus for controlling a controllable magnitude as well as the use of the process, especially for controlling the throughput of pourable or flowable material (grain or water) in a flour mill. In this connection, a servo drive, constructed as a fluidic pressure drive (5', V'), is provided for controlling a servo element. The deviation, measured by a comparator (1'), is supplied to a discriminator (10), which then gives off a first discrimination signal (+U.sub.F, -U.sub.F) when the deviation has reached a first (lower) or second (upper) threshold value, the two threshold values lying within a range of small deviations about zero. In this range of small deviations, the pressure drive (5') is acted upon by transient micropressures (rapid pressure fluctuations with small peak values), the reversal points of the microfluctuations depending on the two aforementioned threshold values.
    Type: Grant
    Filed: October 18, 1983
    Date of Patent: July 1, 1986
    Assignee: Gebruder Buhler AG
    Inventors: Hans Oetiker, Emanuel Kummer