Patents Assigned to Gebruder Buhler AG
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Patent number: 4573568Abstract: A chain for a trough conveyor having individual chain links (2, 3) connected with each other by hinge bolts (1). Flight attachment members (5, 5a) connected with each other by at least one cross piece (10, 10a) are provided on both sides of said chain links (2, 3). Two bearing blocks (7, 7a) are provided, each with a bore (8) for receiving the hinge bolt (1). The cross piece (10, 10a) rests on the trough by way of a rest surface (9, 9a). At least one support surface (12) disposed in relation to the cross piece (10, 10a) in the direction of the chain serves for preventing the tipping of the flight attachment arms when under the action of operating forces (11).Type: GrantFiled: June 22, 1983Date of Patent: March 4, 1986Assignee: Gebruder Buhler AGInventors: Wilhelm Maag, Paul Straub
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Patent number: 4547725Abstract: The invention addresses a new process for determination of characteristic quantities, particularly the moisture content, of a pourable food moving along a product line, particularly grain and its processing products. In this process the good is passed through the electric field of a condenser assembly, a magnitude associable with the capacity of the condenser assembly is measured, and this magnitude is converted into the desired characteristic quantity. The invention further addresses an apparatus to carry out the new process, which includes a first assembly to pass the good through a condenser assembly, a second assembly for measurement of a magnitude associable with the condenser assembly, and a conversion mechanism for conversion of the measured magnitude into the desired characteristic value.Type: GrantFiled: February 17, 1982Date of Patent: October 15, 1985Assignee: Gebruder Buhler AGInventors: Hans Oetiker, Emanuel Kummer
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Patent number: 4499111Abstract: A process and apparatus are disclosed for continuously determining the moisture content of a spoilable grain product which is moved along a processing line as a product stream and passed, at least in part, downwardly through a measuring section of a housing in accordance with the process, a pourable average of the product stream is created continuously within the measuring section, and the product moisture content of this product average is measured electrically on a continuous basis. In accordance with the device, the measuring housing has a capacitor as a continuous-flow measuring section and a device for continuously controlling the creation of a pourable product average.Type: GrantFiled: June 25, 1982Date of Patent: February 12, 1985Assignee: Gebruder Buhler AGInventors: Hans Oetiker, Emanuel Kummer
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Patent number: 4466542Abstract: A separating contrivance for separating cereals and similar grain product into at least three grain fractions and heavier impurities comprises two air-penetrable fluidized bed tables (2, 3) arranged one over the other and supported in fashion capable of being oscillated in relation to a frame, with a product inlet (9) leading to the upper fluidized bed table. At one end of the contrivance, and spaced away from the inlet (9), the upper fluidized bed table (2) is provided with outlets (10, 18) for the light and medium heavy grain fractions, while the lower fluidized bed table (3) includes outlet (27) for the heavy grain fraction. Adjoining the other end of the lower fluidized bed table (3) is an outlet (16) for the heavy impurities such as stones and the like. In order to achieve a practically complete sorting of the heavy impurities, provision is made so that the two fluidized bed tables (2, 3) are supported independently of one another and are driven by separate oscillating drives (7, 25).Type: GrantFiled: February 5, 1982Date of Patent: August 21, 1984Assignee: Gebruder Buhler AGInventors: Hans Oetiker, Roman Muller
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Patent number: 4434522Abstract: A knife scraper for rotating drums, particularly for the drums of a cylinder mill, which exhibits a knife beam (5) in which the knife (3) is mounted as well as a counterweight (12) for pressing the knife (3) on the associated drum (1, 1'). In order to make it especially simple and quick to adjust the knife (5) while simultaneously keeping the installation costs and manufacturing costs low and to make the knife (3) essentially self-adjusting in normal operation according to the invention, several mechanical tension elements (11-15) are provided along the length of the knife (3) by means of which by slightly elastically bending the knife surface (F) extending beyond the knife beam (5) the cutting edge (4) of the knife (3) can be pressed against the drum (1, 1').Type: GrantFiled: December 11, 1981Date of Patent: March 6, 1984Assignee: Gebruder Buhler AGInventor: Robert Linzberger
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Patent number: 4363448Abstract: A process and apparatus is disclosed for milling cereal in a milling plant having a control device, such as a computer device, for controlling various process elements of the plant and the operative parameters of those process elements, in which the characteristics of the material to be milled are established together with the characteristics of the required finished product and from those characteristics desired operating parameter values for one or more selected process elements are determined bearing in mind the characteristics of the process elements of the plant, and those parameter values are stored in the control device to be used as control signals for the process elements, and in which such control signals are determined and stored in groups associated with required combinations of material and finished product characteristics, and an appropriate group of parameter values is selected by means of the control device to provide process control signals for controlling the operative parameters of said proType: GrantFiled: December 26, 1979Date of Patent: December 14, 1982Assignee: Gebruder Buhler AGInventors: Ernst Machler, Emanuel Kummer
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Patent number: 4344975Abstract: The invention relates to a process for the production of bread crumbs from a starch-containing raw material characterized by the raw material being humidified to a water content of 20 to 50% by weight while forming agglomerates, the agglomerates being baked under the influence of humid heat and subsequently dried. Bread crumbs of a desired agglomerate size are obtained from the dried product, if necessary, after granulation.Type: GrantFiled: March 7, 1980Date of Patent: August 17, 1982Assignee: Gebruder Buhler AGInventor: Werner Seiler
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Patent number: 4303205Abstract: An agitator mill for treating a liquid containing material particles for example for dispersing paint pigment in a mixture of solvent and binder basically comprises a milling vessel containing freely movable milling bodies and with an inlet and outlet for said liquid, stirrer mechanism within the milling vessel and an electric stirrer motor for driving the stirrer mechanism. The mill features, for the purpose of obtaining optimum operating efficiency, a control circuit which regulates the stirrer motor current to a constant value by adjustment of a pump supplying the liquid to the milling vessel and/or a volume controller for controlling the volume of milling bodies within the milling vessel or the volume of the milling vessel and a temperature control circuit which controls the operating temperature in the milling vessel to lie at a constant value. Various variants and control possibilities including the use of a computer are set forth together with methods of controlling the agitator mill.Type: GrantFiled: August 22, 1979Date of Patent: December 1, 1981Assignee: Gebruder Buhler AGInventors: Armin Geiger, Kurt Grauer
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Patent number: 4299597Abstract: A method and apparatus for the cyclical counter-scavenging of filter hoses, particularly the control thereof, is disclosed. According to the present invention, the counter-scavenging of filter hoses is accomplished by gas blasts whose timing and duration are controlled by a fluid control apparatus. The fluid control apparatus consists of a drum distributor having an arm whose position controls the timing of the counter-scavenging blasts, and a valve whose activation controls the duration of the counter-scavenging blasts. The drum distributor and the valve are independently controllable by an electronic circuit including timing signals and control circuitry receiving the timing signals and converting these signals into activating signals for the drum distributor and the valve.Type: GrantFiled: February 14, 1980Date of Patent: November 10, 1981Assignee: Gebruder Buhler AGInventors: Hans Oetiker, Emanuel Kummer, Kurt Rusterholz, Hermann Gamperle
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Patent number: 4226578Abstract: A cylindrical die for a pellet mill for animal feedstuffs is releasably clamped to a rotatable die holder by means of a series of clamping segments disposed in a recess at the end face of the die holder. The recess has a radially outer conically diverging surface which cooperates with conically shaped outer surfaces on the segments to produce clamping of the radially inner faces of the segments on an end portion of the die.The clamping segments are urged into engagement by springs acting on rods connected to the segments and are disengagable by means of a series of hydraulic rams which can be actuated to oppose the force of the springs. The direction of the forces is chosen to be at an angle to the axis of the die holder so as to cause the clamping segments to follow the surface of the recess and to move radially away from the die during disengagement. The angle chosen is preferably the angle of divergence of the recess. In a modification centering segments are interdigitated with the clamping segments.Type: GrantFiled: January 15, 1979Date of Patent: October 7, 1980Assignee: Gebruder Buhler AGInventors: Werner Grobli, Peter Zimmermann
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Patent number: 4208368Abstract: A method of molding articles of plastic having an expanded plastic cellular core using a closable and sealable mold having a sealed mold cavity and including at least one mold core extending into the cavity, comprises, directing the plastic melt material containing a foaming agent into the mold cavity under pressure so as to form a flow front of the melt which progresses through the cavity and which spreads out in all directions and flows around the mold core and tends to form a pocket of gas in the vicinity of the mold core, and venting the cavity adjacent the core so as to remove gas from any gas pocket which may be formed in the vicinity of the core. The apparatus for carrying out the invention includes a vent line which extends from the cavity in the vicinity of the mold core out of the cavity and which has a control valve for opening the vent line to vent any gas which forms in the cavity and which might tend to form a pocket after the buildup of a pressure in the mold cavity.Type: GrantFiled: July 18, 1978Date of Patent: June 17, 1980Assignee: Gebruder Buhler AGInventor: Ernst Egli
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Patent number: 4193555Abstract: A roll mill has sealing devices pressed against the ends of the rolls to seal the roll gap so that material being processed is not squeezed out (such as oil seed during treatment for flaking). The sealing devices include flow guides (such as recesses therein). A curtain of material, wider than the rolls are long, falls onto the roll gap, and so much of it as exceeds the width of the rolls is guided by the flow guides into the roll gap from beyond the ends of the rolls outwardly of the roll ends. This happens because the flow guides themselves extend near the roll gap but stop short of the roll ends. The sealing devices may include a sealing pin surmounted by an elongate wedge member, the two having communicating recesses which together form the flow guide.Type: GrantFiled: June 19, 1978Date of Patent: March 18, 1980Assignee: Gebruder Buhler AGInventor: Edgar Ruegger
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Patent number: 4158540Abstract: A process of manufacturing molded parts using a mold with relatively movable parts enclosing a mold cavity which is fed with plasticizable material, comprises directing grains of the plasticizable material into a vertically elongated vestibule having a lower end connected to the feed of the mold cavity and directing hot gases into the lower end of the vestibule and upwardly through the plasticizable material therein to make the material weldable and, thereafter, directing the weldable material into the cavity under pressure. The device for carrying out the process includes a feed conduit which is connected into the cavity which is disposed below a vertically elongated vestibule which has a closed top and a bottom opening into the conduit.Type: GrantFiled: June 24, 1977Date of Patent: June 19, 1979Assignee: Gebruder Buhler AGInventors: Bruno Stillhard, Hans Naf
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Patent number: 4093413Abstract: The apparatus manufactures, in repetitive cycles, apertured composite articles, such as stators for electric motors, including an apertured prefabricated insert. A machine applies molten molding material about the insert by die-casting or injection molding to constitute the composite. The apparatus includes a plurality of clamping mandrels for clamping in such apertures to constitute temporarily "mandrel-with-insert" or "mandrel-with-composite" combinations, a discharge station for discharge of the composites, a charging station for charging the mandrels with inserts, and a loading system with tongs, constituting holders for holding the mandrels, and with a conveying mechanism for repetitively carrying out a series of operations in appropriate timed sequences.Type: GrantFiled: June 1, 1977Date of Patent: June 6, 1978Assignee: Gebruder Buhler AGInventors: Wolfgang Schollhorn, Urban Ehret
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Patent number: 4067238Abstract: The device is of the type including a balance beam pivotally connected to a housing, an inclined measuring plate, adapted to deflect a product stream supplied in metered quantities and flowing off by gravity, mounted on the balance beam in a position in which its measuring surface extends substantially parallel to the longitudinal axis of the balance beam, and a mechanism in the housing, operatively associated with the lever arm of the balance beam remote from the measuring plate, and operable to act on such lever arm, in opposition to the effect of the deflecting force acting on the measuring plate, to produce a variable proportional to the time rate of the product flow and represented by a preferably pneumatic signal, resulting from oscillation of the balance beam about its position of equilibrium, this signal constituting the basis of either a measurement or a flow control derived from the signal.Type: GrantFiled: March 4, 1976Date of Patent: January 10, 1978Assignee: Gebruder Buhler AGInventor: Hans Oetiker
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Patent number: 3946901Abstract: A feeler is moved in a defined space at a predetermined level in alternately opposite directions. If the level of particulate material in the space reaches or exceeds the predetermined level, the movement of the feeler encounters resistance which is sensed, and in dependence of which the level of the particulate material in the space is controlled.Type: GrantFiled: March 28, 1974Date of Patent: March 30, 1976Assignee: Gebruder Buhler AGInventor: Hans Oetiker