Patents by Inventor Rudolf Polster
Rudolf Polster has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 6857978Abstract: A traction device for an internal combustion engine includes a tensioning device having two lever arms of different lengths which are rigidly connected together and which are pivotally mounted for rotation about a rotation axis. Each of the lever arms supports on one end a tension pulley. The tensioning device is provided for positioning the tension pulleys on a pulling strand and a return strand by imposing an elastic force thereon.Type: GrantFiled: January 22, 2003Date of Patent: February 22, 2005Assignee: INA-Schaeffler KGInventors: Rudolf Polster, Rudolf Berger, Michael Bogner
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Publication number: 20030176249Abstract: A traction device for an internal combustion engine includes a tensioning device having two lever arms of different lengths which are rigidly connected together and which are pivotally mounted for rotation about a rotation axis. Each of the lever arms supports on one end a tension pulley. The tensioning device is provided for positioning the tension pulleys on a pulling strand and a return strand by imposing an elastic force thereon.Type: ApplicationFiled: January 22, 2003Publication date: September 18, 2003Applicant: INA-SCHAEFFLER KGInventors: Rudolf Polster, Rudolf Berger, Michael Bogner
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Patent number: 6511393Abstract: The invention relates to a clamping device (6) for a traction means (2) of a drive system (1) which produces different pretensioning forces in a first strand (2a) and in a second strand (2b) by means of a turning lever (8, 11), the length ratio between the corresponding inner lever arm (8a, 11a) and the corresponding outer lever arm (8b, 11b) being different.Type: GrantFiled: May 11, 2001Date of Patent: January 28, 2003Assignee: Ina Walzlager Schaeffler oHGInventors: Arno Bogl, Rudolf Polster
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Patent number: 5746673Abstract: A tensioning eye for use in a tensioner for a traction drive, in particular a belt drive, in an internal combustion engine, includes a fastening sleeve, a bushing, and an elastic ring circumscribing the bushing for securing the bushing in a bore of the fastening sleeve. The elastic ring has opposite ends formed with radially outwardly directed flanges which are spaced from opposing end faces of the fastening sleeve and define an outer diameter which is greater than a greatest inner diameter of the recess so as to form a radial overlap.Type: GrantFiled: September 3, 1996Date of Patent: May 5, 1998Assignee: Ina Waelzlager Schaeffler OHGInventors: Rudolf Polster, Werner Schmidt
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Patent number: 5517957Abstract: A device for damping torsional vibrations in a drive train of a traction drive connecting an internal combustion piston engine and an auxiliary unit, comprising an overrunning clutch (5,30,48) arranged between a driving pulley (2,25,42) and an input shaft (1) of the auxiliary unit or between a crankshaft and a driven pulley of the internal combustion piston engine, characterized in that the overrunning clutch (5,30,48) comprises an inner or outer ring (8,9,28,29,50) made of sheet metal without chip removal on which locking ramps cooperating with locking rollers (10,30a,48a) are formed, and the inner or outer ring (8,9,28,29,50) extends at least on one side beyond a region of the locking ramps to form a raceway for a rolling bearing (6,7,31,32,45,49).Type: GrantFiled: September 11, 1995Date of Patent: May 21, 1996Assignee: INA Walzlager Schaeffler KGInventors: Jorg Wagner, Norbert Bethke, Ernst Neuwirth, Henrik Brehler, Rudolf Polster, Sigurd Wilhelm
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Patent number: 5458541Abstract: The invention relates to a tensioning system for a belt or chain drive. Tensioners are known in which there are plastic friction bushes to damp oscillations where the coefficient of friction is adversely affected by temperature effects. It is the purpose of the invention to provide a tensioning system in which the friction coating retains a virtually constant frictional torque throughout its useful life. To this end, according to the invention there is a basic component (2) in which against a base (5) in the shape of a circular disc bears a friction coating (18) on which is supported a friction disc (10) which is secured against rotation by means of a shaft (7), to the tensioner (9) producing the oscillating movement.Type: GrantFiled: December 15, 1994Date of Patent: October 17, 1995Assignee: Ina Walzlager Schaeffler KGInventors: Hellmut Adler, Rudolf Polster, Michael Schmid
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Patent number: 5449328Abstract: A tensioning device (1) for belt or chain drives comprising a tension arm (3) which carries a tension roller (4) on one end and is mounted at a second end for rotating together with a shaft (6) in a housing (2) while being resiliently supported on the housing (2) by a torsion spring (16), the tensioning device (1) further comprising a friction disk (10) which is rigidly connected to the shaft (6) or the tension arm (3), a friction lining (15,24,27) being arranged between a friction surface (10a) of the friction disk (10) and an axial contact surface (14) of the housing (2), characterized in that the contact surface (14) comprises a means (23,25,28) which engages the friction lining (15,24,27) by positive and/or force engagement and prevents any rotation of said friction lining (15,24,27) with respect to the contact surface (14).Type: GrantFiled: October 17, 1994Date of Patent: September 12, 1995Assignee: Ina Walzlager Schaeffler KGInventors: Werner Schmidt, Ingo Sebastian, Hanns Seegers, Michael Schmid, Rudolf Polster
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Patent number: 5175282Abstract: Strong, transparent and readily dispersible copper phthalocyanine pigments are obtained by grinding the crude pigment in the presence of from 1 to 10% by weight (based on the crude pigment) of an organic liquid at from 90.degree. to 140.degree. C., the pigment forms obtained giving printing inks with very good flow characteristics.Type: GrantFiled: December 9, 1991Date of Patent: December 29, 1992Assignee: BASF AktiengesellschaftInventors: Karl Roth, Rudolf Polster
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Patent number: 5006173Abstract: Crude copper phthalocyanines are transformed into a pigmentary state by treating finely divided but imperfectly crystallized and highly aggregated crude copper phthalocyanines having a primary particle size, produced by ball milling, or less than 0.1 .mu.m with an organic solvent by subjecting a suspension of the organic solvent and the milled crude copper phthalocyanine (hereinafter referred to as the solvent/pigment suspension), which has a pigment concentration of from 15 to 55% by weight and a solvent concentration of from 15 to 85% by weight and which may contain water in a concentration of from 0 to 30% by weight, to a shear gradient of from 1000 to 20000 s.sup.-1 for a period of from 2 to 1000 s with an energy uptake during shearing of from 0.01 to 0.02 kWh/kg of pigment throughput, then metering water into the solvent/pigment suspension in an amount of from 0.Type: GrantFiled: June 23, 1989Date of Patent: April 9, 1991Assignee: BASF AktiengesellschaftInventors: Wolfgang Fath, Rainer Nachtrab, Rudolf Polster
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Patent number: 4997410Abstract: A hydraulic actuating element particularly for a belt tightener having a pressure chamber arranged behind a piston guided in a cylinder, a reservoir separated from the pressure chamber by a check valve, the cylinder and the reservoir being completely oil filled, the outside of the reservoir being defined by a bellows, a leakage gap between the piston and the cylinder being open towards the reservoir and at its one side towards the pressure chamber, whereby a compression spring acts to urge apart the piston and cylinder, characterized in that the reservoir (13) surrounds the cylinder (2) and being limited by the bellows (12) at its outside, the bellows (12) being sealingly secured at one end to a base element (10) secured to the cylinder (2) and at its other end to a base element (11) secured to the piston (1), and that the leakage gap (3) at its other side (17) is externally shielded by the bellows (12) and open to the reservoir (13).Type: GrantFiled: March 14, 1990Date of Patent: March 5, 1991Assignee: INA Walzlager Schaeffler KGInventors: Rudolf Polster, Werner Schmidt
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Patent number: 4523958Abstract: Readily dispersible formulations comprising (a) finely divided copper phthalocyanine and (b) an iron hexacyanoferrate-III pigment are obtained by thoroughly milling a mixture of (a) and (b).The performance characteristics and tinctorial properties of the formulations comprising (a) and (b) can be improved by incorporating (c) a Mannich condensate obtained from 2-hydroxynaphthalene which may or may not possess 1 or 2 further .beta.-OH groups, formaldehyde and a primary or secondary amine, (d) a compound of the formula K(-NH-CONH-R).sub.2, where K is 1,5-naphthylene or 4,4'-diphenylenemethane and R is C.sub.12 -C.sub.18 -alkyl, C.sub.12 -C.sub.18 -alkenyl, C.sub.8 -C.sub.18 -alkoxypropyl or C.sub.2 -C.sub.8 -alkoxyethyleneoxypropyl, (e) a C.sub.6 -C.sub.18 -alkylbenzenesulfonic acid and (f) a mixture of (e) with a basic copper phthalocyanine and/or a salt obtained by reacting (e) with the basic copper phthalocyanine.Type: GrantFiled: March 15, 1983Date of Patent: June 18, 1985Assignee: BASF AktiengesellschaftInventors: Wolf D. Fechner, Rudolf Polster, Joachim Kranz, Eduard Hartmann
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Patent number: 4497120Abstract: A procedure and apparatus for charging and emptying the drying trays in a drying box containing pumpable, solvent-moist starting materials and end products which can be conveyed pneumatically, in which procedure, for filling, the drying trays are closed by means of cover plates and the solvent-moist starting materials are pumped into the filling spaces which are thus formed, these spaces being opened on commencing the drying process, and being closed again following completion of this process, after which the end products are conveyed away from the filling spaces by pneumatic means.This procedure enables drying boxes to be employed for drying even pumpable, solvent-moist products, the recommendations relating, respectively, to explosion protection and to maximum permissible concentrations of toxic materials at workplaces, being complied with, while the operations of charging and emptying the drying boxes are, at the same time, carried out by mechanical means, and hence at lower cost.Type: GrantFiled: April 27, 1983Date of Patent: February 5, 1985Assignee: BASF AktiengesellschaftInventors: Fritz Laemmermann, Werner Rindfleisch, Wolfgang Fabian, Rudolf Polster
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Patent number: 4490176Abstract: Stable, fluid formulations contain (a) finely divided iron cyano complexes, iron-III oxides or iron-III oxide hydrates, (b) one or more C.sub.6 -C.sub.18 -alkylbenzenesulfonic acid, (c) one or more compounds which are obtained by Mannich condensation from 2-hydroxynaphthalene, which may or may not contain 1 or 2 additional .beta.-hydroxyl groups, formaldehyde and primary or secondary aliphatic, cycloaliphatic or aromatic monoamines, diamines, triamines or polyamines or 5- or 6-membered heterocyclic compounds, and which contain from 1 to 6 .beta.-hydroxynaphthyl groups, and (d) one or more organic liquids, the ratio of (b):(c) being from 1:8 to 2:1 and the amount of (c) being from 10 to 20% by weight, based on (a).The formulations are fluid or pourable at pigment concentrations of from 20 to 55% by weight and give very deeply colored, very glossy finishes.Type: GrantFiled: September 30, 1982Date of Patent: December 25, 1984Assignee: BASF AktiengesellschaftInventors: Wolf D. Fechner, Joachim Kranz, Rudolf Polster
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Patent number: 4459233Abstract: A process for purifying crude organic pigments, wherein the crude pigment is suspended in a mixture of two organic liquids which are partially or completely immiscible with one another, the suspension is mixed at 50.degree.-180.degree. C. until equilibrium has been reached, the phases are allowed to separate, the phase containing the impurities (i.e. the first liquid) is separated off and the purified pigment is isolated from the other phase (i.e. the second liquid).Finely divided crude pigments can, directly after purification, be converted, while in the second liquid, into pigmentary forms.The process gives pigments of high purity, which after conversion into pigmentary forms give deep, brilliant colorations.Type: GrantFiled: March 31, 1982Date of Patent: July 10, 1984Assignee: BASF AktiengesellschaftInventors: Wolfgang Fabian, Rudolf Polster
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Patent number: 4350534Abstract: A stable fluid formulation which comprises (a) finely divided .alpha.- or .beta.-copper phthalocyanines or finely divided indanthrone, one or more C.sub.6 -C.sub.18 -alkylbenzenesulfonic acids (b), a basic copper phthalocyanine (c) of the formula ##STR1## where CuPc is an n-valent copper phthalocyanine radical, R.sup.1 and R.sup.2 independently of one another are H or C.sub.1 -C.sub.8 -alkyl and n is 1, 2, 3 or 4, one or more compounds (d) which are obtained by Mannich condensation of 2-hydroxy-naphthalene, which may or may not contain 1 or 2 additional .beta.-hydroxyl groups, formaldehyde and primary or secondary aliphatic, cycloaliphatic or aromatic monoamines, diamines, triamines or polyamines or 5-membered or 6-membered heterocyclic compounds which contain an >NH-- group as a ring member and which contain from 1 to 6 .beta.-hydroxynaphthyl groups, and one or more organic liquids (e). The weight ratio (b):(c):(d) is from 1:1:1 to 2.5:1.25:1.Type: GrantFiled: July 2, 1981Date of Patent: September 21, 1982Assignee: BASF AktiengesellschaftInventors: Wolf D. Fechner, Joachim Kranz, Rudolf Polster
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Patent number: 4256507Abstract: Formulations of flavanthrone, pyranthrone, indanthrone, indigo, quinacridone, perylene-3,4,9,10-tetracarboxylic acid dianhydride and perylene-3,4,9,10-tetracarboxylic acid diimide pigments which contain, as additives, one or more compounds of the formula ##STR1## where X is an n-valent radical of a flavanthrone, pyranthrone, indigo, quinacridone, perylene-3,4,9,10-tetracarboxylic acid dianhydride or perylene-3,4,9,10-tetracarboxylic acid diimide pigment, R.sup.1, R.sup.3 and R.sup.4 are hydrogen or chlorine, R.sup.2 is hydrogen, chlorine, carboxyl, bromine, nitro, N-C.sub.1 -C.sub.5 -alkylcarbamyl, N-phenylcarbamyl or benzoylamino and n is 1, 2, 3 or 4.In solutions of surface-coating binders or of surface coatings, the above formulations give very deep colorations, coupled with high gloss and high transparency of the resulting films.Type: GrantFiled: January 29, 1980Date of Patent: March 17, 1981Assignee: BASF AktiengesellschaftInventors: Joachim Kranz, Rudolf Polster, Reinhard Sappok, Alois Wiesenberger
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Patent number: 4104276Abstract: A process for converting crude copper phthalocyanine to a pigmentary form, wherein finely divided and heavily agglomerated crude copper phthalocyanine which exhibits disturbed crystallization and which has a primary particle size of less than 0.1 .mu.um is introduced into an organic or aqueous organic medium together with from 0.5 to 7% by weight, based on the crude copper phthalocyanine, of a basic copper phthalocyanine of the formula ##STR1## or of mixtures thereof (where CuPc is an n-valent copper phthalocyanine radical, R.sup.1 is H or alkyl of 1 to 4 carbon atoms, A is linear or branched alkylene, R.sup.2 is alkyl of 1 to 20 carbon atoms, alkoxyalkyl of 3 to 12 carbon atoms or cycloalkyl of 6 to 8 carbon atoms, R.sup.3 is H, alkyl of 1 to 4 carbon atoms or cycloalkyl of 6 to 8 carbon atoms or ##STR2## is a saturated heterocyclic 5-membered, 6-membered or 7-membered ring, and n is an integer from 1 to 6), and the suspension is heated at from room temperature to 180.degree.Type: GrantFiled: November 8, 1976Date of Patent: August 1, 1978Assignee: BASF AktiengesellschaftInventors: Joachim Kranz, Werner Jettmar, Rudolf Polster
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Patent number: 4069064Abstract: A phthalocyanine formulation which is stabilized against recrystallization and change of modification and which contains, as the stabilizer (a) a finely divided phthalocyanine as the pigment and (b) a salt or the corresponding homogeneous mixture of (.alpha.) a phthalocyanine derivative, which carries basic groups ##STR1## (R.sup.1 = H, alkyl of 1 to 20 carbon atoms, unsubstituted or substituted phenyl, --C.sub.2 H.sub.4 --NH).sub.z H or --(C.sub.3 H.sub.6 --NH).sub.z H, z = 1, 2 or 3, and R.sup.2 = H, alkyl of 1 to 6 carbon atoms or cycloalkyl of 6 to 8 carbon atoms) and (.beta.) an aliphatic sulfonic acid of 8 to 20 carbon atoms, a monoalkylbenzenesulfonic acid or dialkylbenzenesulfonic acid where alkyl is of 6 to 20 carbon atoms, or a monoalkylnaphthalenesulfonic acid or dialkylnaphthalenesulfonic acid where alkyl is of 6 to 20 carbon atoms, which acids may be substituted by hydroxyl, the molar ratio of .alpha.:.beta.Type: GrantFiled: March 24, 1976Date of Patent: January 17, 1978Assignee: BASF AktiengesellschaftInventors: Robert Nett, Wolf Dieter Fechner, Werner Jettmar, Rudolf Polster, Reinhard Sappok, Eduard Hartmann
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Patent number: 4042686Abstract: A synergistic fungicidal composition consisting essentially ofA. wettable sulfur andB. diisopropyl 3-nitroisophthalate, the weight ratio of a:b being from 2:1 to 5:1.Type: GrantFiled: April 13, 1976Date of Patent: August 16, 1977Assignee: BASF AktiengesellschaftInventors: Ernst-Heinrich Pommer, Rudolf Polster, Friedrich Loecher
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Patent number: 3992548Abstract: A valuable fungicidal composition consisting essentially of (a) diisopropyl 3-nitroisophthalate, (b) a dithiocarbamate and/or (c) a compound selected from the group consisting of N-thiotrichloromethyl-phthalamide and N-thiotrichlormethyl-tetrahydrophthalimide.Type: GrantFiled: May 31, 1974Date of Patent: November 16, 1976Assignee: BASF AktiengesellschaftInventors: Ernst Heinrich Pommer, Juergen Kradel, Rudolf Polster