Patents by Inventor Jurgen Friedrich
Jurgen Friedrich 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: 6106155Abstract: A bearing plate formed from sheet metal to hold at least two rolling bearings in closely adjoining relation includes a pair of seat surfaces between which is located a ridge. The ridge is positioned in the area of the narrowest point between the outside rings of the rolling bearings and is pulled from the seat surfaces generally in the axial direction. The ridge axially increases in width with curved transition areas that merge with the seat surfaces.Type: GrantFiled: February 10, 1999Date of Patent: August 22, 2000Assignee: SKF GmbHInventors: Berthold Beyfuss, Burkhard Buchheim, Hans-Jurgen Friedrich, Peter Horling, Manfred Karl, Jurgen Storzenberger
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Patent number: 5924337Abstract: A drive unit for a vehicle which includes an engine, transmission and hydrodynamic retarder having a rotor and a stator. A retarder shaft is rotatably supported by two bearings and extends through the housing of the transmission. A sealing element provides a seal between the retarder shaft and the transmission housing for separating the operating medium of the hydrodynamic retarder from either the transmission lubricant or the lubricant for one of the two shaft bearings.Type: GrantFiled: November 27, 1996Date of Patent: July 20, 1999Assignee: Voith Turbo GmbH & Co. KGInventors: Werner Adams, Peter Edelmann, Jurgen Friedrich, Peter Heilinger, Peter Rose, Klaus Vogelsang
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Patent number: 5873342Abstract: A drive unit for a motor vehicle including an internal combustion engine, a transmission and a hydrodynamic retarder. The retarder includes both a rotor and a stator wherein the rotor is mounted on the engine crankshaft or crankshaft journal and the stator is disposed between the crankcase and rotor.Type: GrantFiled: November 10, 1997Date of Patent: February 23, 1999Assignee: Voith Turbo GmbHInventors: Jurgen Friedrich, Klaus Vogelsang, Peter Heilinger, Hans Gebhardt, Heribert Moller
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Patent number: 5829562Abstract: The invention relates to a drive unit for a motor vehicle having a hydrodynamic retarder and a drive train with an engine and a transmission. The hydrodynamic retarder is comprised of a rotor impeller wheel and a stator impeller wheel and is coordinated with the main drive train in a manner such that the rotor impeller wheel of the hydrodynamic retarder is driven by the drive train. The operating fluid of the hydrodynamic retarder is a medium used for cooling the vehicle and a clutch is arranged between the drive train and the hydrodynamic retarder.Type: GrantFiled: August 25, 1997Date of Patent: November 3, 1998Assignee: Voith Turbo GmbHInventors: Werner Adams, Peter Edelmann, Jurgen Friedrich, Peter Heilinger, Peter Rose, Klaus Vogelsang
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Patent number: 5819697Abstract: The present invention involves a drive unit, specifically a drive unit for a motor vehicle having an internal combustion engine, a cooling system with fan and a hydrodynamic retarder with a stator, rotor and housing. The retarder is located within a space bounded on one side by the front of the crankcase, on a second side by the fan shaft which runs parallel to the engine shaft, and on a third side by the rear edge of the fan wheel. Viewed from the front, the retarder is substantially located within the fly circle of the fan wheel whereby the air flow generated by the fan wheel removes heat, generated by braking actions, from the housing of the retarder.Type: GrantFiled: November 7, 1995Date of Patent: October 13, 1998Assignee: Voith Turbo GmbHInventors: Peter Edelmann, Jurgen Friedrich, Hans Gebhardt, Heribert Moller, Alfred Neitz, Klaus Vogelsang
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Patent number: 5789239Abstract: The present invention relates to the use of at least one enzyme component from the group consisting of carbohydrases, proteases, lipases and glycol proteases and a short-chained glycol component for the avoidance of slime formation and/or for the removal of biofilm on surfaces of water-bearing systems, in particular of industrial process-water systems. The enzyme component(s) and the glycol component can be added to the water-bearing system either separately, i.e. at different points, or in the form of an enzymatic composition containing the enzyme component(s) and the glycol component.Type: GrantFiled: December 4, 1996Date of Patent: August 4, 1998Assignee: BetzDearborn Inc.Inventors: Mark Emile Eyers, Kristine Laura Ignatius Van Pee, Jozef Van Poele, Jurgen Friedrich Schuetz, Achim Paul Schenker
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Patent number: 5779008Abstract: A drive unit comprising an engine, a transmission, a hydrodynamic retarder comprised of a rotor impeller wheel, a stator impeller wheel and a retarder housing enclosing both. A coolant circuit having coolant also serves as a working fluid of the retarder, and a pump impeller wheel is arranged coaxially with the rotor impeller wheel of the retarder which is used to circulate the coolant. Given this configuration, the space needed by the units which perform the pumping and braking functions of the drive unit are minimized while the efficiency of the pumping and braking functions are maximized.Type: GrantFiled: October 6, 1995Date of Patent: July 14, 1998Assignee: Voith Turbo GmbH & Co. KGInventors: Klaus Vogelsang, Jurgen Friedrich, Hans Gebhardt, Heribert Moller
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Patent number: 5776310Abstract: This invention relates to the treatment of press section felts. The treatment comprises applying to the felts an effective amount of a felt cleaning agent comprising one or more anionic polymers, selected from the group of polycarboxylic acids and derivatives thereof having an average molecular weight of 500 to less than 5000, 2-phosphino-1,2,4-tricarboxybutane, and an amphoteric surfactant selected from the group consisting of alkyl-N-(3 aminopropyl)-glycines and alkyl-di(aminoethyl)-glycines. The cleaning agent inhibits the blinding of paper machine press section felts and provides improved felt conditioning at much lower concentration levels than known commercial products.Type: GrantFiled: April 23, 1997Date of Patent: July 7, 1998Assignee: BetzDearborn Inc.Inventors: Michael Anthony McDermott, Jurgen Friedrich Schuetz
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Patent number: 5771997Abstract: The invention relates to a braking system, specifically for a motor vehicle, with a hydrodynamic retarder featuring a stator impeller wheel and a rotor impeller wheel, a working medium sump, and a control device for controlling the degree of working space filling of the retarder. The control device includes a proportional valve as well as a connecting line to the sump, and the sump communicates with the working space of the retarder by way of a riser duct. A venting duct communicable with the sump whereby air pressure generated by the non-braking operation of the retarder can be vented from the sump to the atmosphere thereby providing a pressure balance of the forces acting on the level of the working medium sump.Type: GrantFiled: November 27, 1995Date of Patent: June 30, 1998Assignee: Voith Turbo GmbHInventors: Jurgen Friedrich, Wolfgang Muller
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Patent number: 5762582Abstract: A drive unit, notably for a motor vehicle with an internal combustion engine and a transmission. The drive unit has two hydrodynamic retarders, each featuring a rotor and a stator. A primary retarder precedes the transmission in the power train and a secondary retarder follows the transmission in the power train.Type: GrantFiled: December 20, 1995Date of Patent: June 9, 1998Assignee: Voith Turbo GmbHInventors: Jurgen Friedrich, Hans Gebhardt, Heribert Moller, Klaus Vogelsang
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Patent number: 5758619Abstract: The present invention involves a drive unit, specifically a drive unit for a motor vehicle having an internal combustion engine, a cooling system with fan, a transmission and a hydrodynamic retarder with a stator, rotor and housing. The retarder rotor is mounted on either the engine shaft or a crankshaft journal which is coaxial with the engine shaft. The retarder is located within a space bounded on one side by the front of the crankcase, on a second side by the fan shaft which runs parallel to the engine shaft, and on a third side by the rear edge of the fan wheel. Viewed from the front, the retarder is substantially located within the fly circle of the fan wheel whereby the air flow generated by the fan wheel removes heat, generated by braking actions, from the housing of the retarder.Type: GrantFiled: November 7, 1995Date of Patent: June 2, 1998Assignee: Voith Turbo GmbHInventors: Peter Edelmann, Jurgen Friedrich, Hans Gebhardt, Heribert Moller, Alfred Neitz, Klaus Vogelsang
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Patent number: 5657723Abstract: The present invention involves a drive unit, specifically a drive unit for a motor vehicle having an internal combustion engine, a cooling system with fan and a hydrodynamic retarder with a stator, rotor and housing. The retarder is located within a space bounded on one side by the front of the crankcase, on a second side by the fan shaft which runs parallel to the engine shaft, and on a third side by the rear edge of the fan wheel. Viewed from the front, the retarder is substantially located within the fly circle of the fan wheel whereby the air flow generated by the fan wheel removes heat, generated by braking actions, from the housing of the retarder. The retarder housing comprises a bell and a cover body. The cover body defines a chamber having two outlets and an inlet. The chamber being in fluid communication with the working space of the retarder.Type: GrantFiled: November 7, 1995Date of Patent: August 19, 1997Assignee: Voith Turbo GmbH & Co. KGInventors: Peter Edelmann, Jurgen Friedrich, Hans Gebhardt, Heribert Moller, Alfred Neitz, Klaus Vogelsang
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Patent number: 5651812Abstract: An agent for treatment of paper machine press section felts is described which comprises one or more anionic polymers having a weight average molecular weight of 500 to less than 5000 selected from polycarboxylic acids and derivatives thereof, and/or 2-phosphino-1,2,4-tricarboxybutane. The novel agent, which preferably comprises a surfactant, inhibits the blinding of paper machine press section felts and provides improved felt conditioning at much lower concentration levels than known commercial products.Type: GrantFiled: June 5, 1995Date of Patent: July 29, 1997Assignee: BetzDearborn Inc.Inventors: Michael Anthony McDermott, Jurgen Friedrich Schuetz
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Patent number: 5613472Abstract: The present invention involves a drive unit, specifically a drive unit for a motor vehicle having an internal combustion engine, a cooling system with fan, a crankshaft and a hydrodynamic retarder with a stator, rotor and housing. The retarder is located within a space bounded on one side by the front of the crankcase, on a second side by the fan shaft which runs parallel to the engine shaft, and on a third side by the rear edge of the fan wheel. Viewed from the front, the retarder is substantially located within the fly circle of the fan wheel. Mounted to the crankcase and located between the crankcase, fan and retarder is an intermediate body which supports the retarder housing and stator, the fan, a regulator and switch for a generator, an idler pulley for a drive belt for auxiliary units and an air conditioning compressor.Type: GrantFiled: November 7, 1995Date of Patent: March 25, 1997Assignee: Voith Turbo GmbHInventors: Peter Edelmann, Jurgen Friedrich, Hans Gebhardt, Heribert Moller, Alfred Neitz, Klaus Vogelsang
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Patent number: 5537956Abstract: In an arrangement for the cooling of vehicle components comprising a first coolant circuit including a first component to be cooled, a radiator with cooling fan and a coolant pump for circulating coolant through the first component and the radiator, a by-pass line arranged in parallel flow relationship with the radiator and including a second heat exchanger with a fan for providing heated air for the passenger compartment of the vehicle and a control valve for controlling the flow of coolant through the by-pass line and the second heat exchanger, there is provided a second coolant circuit which extends also through the second heat exchanger separately from the first coolant circuit and includes an additional component to be cooled.Type: GrantFiled: August 11, 1994Date of Patent: July 23, 1996Assignee: Daimler-Benz AGInventors: Alfons Rennfeld, Jurgen Friedrich, Karl-Ernst Noreikat
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Patent number: 5409343Abstract: A ship loader or unloader includes a vertically extending first region and a horizontally extending second region; a first hydraulic cylinder connected to a lower end of the first region and to the second region for translationally displacing the second region relative to the first region as a function of vertical ship motions; a bucket mechanism including a chain and buckets mounted on the chain; guides, including a guide wheel, mounted in the first and second regions for continuously guiding the chain on the first and second regions; and a chain length equalizer in the second region for varying a chain length in the second region as a function of displacements of the second region relative to the first region. The chain length equalizer includes a second hydraulic cylinder effecting a length variation of the chain. The first hydraulic cylinder is connected to and extends between a first support forming a part of the first region; and an abutment forming part of the second region.Type: GrantFiled: November 13, 1992Date of Patent: April 25, 1995Assignee: O&K Orenstein & Koppel AGInventor: Hans-Jurgen Friedrich
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Patent number: 5205343Abstract: A pouring tube for feeding molten steel into the pouring zone of a continuous casting mold includes a tube portion connected to a pouring container and an end portion provided with a bottom piece. To ensure safe operation of the pouring tube and an improved flow distribution, the bottom piece has in the direction of outlet openings thereof a width which is smaller, between 30% and 80%, than the distance between the walls which form the upper limits of the outlet openings.Type: GrantFiled: May 28, 1991Date of Patent: April 27, 1993Assignee: SMS Schloemann-Siemag AktiengesellschaftInventors: Hans Streubel, Horst Grothe, Jurgen Friedrich
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Patent number: 4877989Abstract: An ultrasonic pocket-size atomizer comprises a housing including a first portion and a second portion detachably connected thereto. A vibration generation mechanism is mounted liquid-tight in the first portion of the housing for generating an oscillation with a frequency between 1 and 5 Mhz. The vibration generation mechanism includes a piezoelectric assembly and an electronic circuit operatively connected to the assembly for energizing the assembly and causing the assembly to vibrate. A power source including a storage battery is removably and rechargeably disposed in the first portion of the housing for supplying electric current to the electronic circuit. A cartridge is provided for containing liquid to be atomized, the cartridge being movably disposed in the second portion of the housing.Type: GrantFiled: January 12, 1989Date of Patent: October 31, 1989Assignee: Siemens AktiengesellschaftInventors: Wolf-Dietrich Drews, Klaus Van Der Linden, Martin Ruttel, Jurgen Friedrich
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Patent number: 4204427Abstract: A device for the capacitive level height measurment of liquids in motor vehicle tanks, with a measuring sensor with at least two electrodes which are arranged axially parallel to each other and a carrier, and an evaluation circuit containing an oscillator, with the measuring sensor and an indicator instrument being connected to the evaluation circuit. One electrode is made of an electrically conducting layer which is disposed on the elongated insulating material plate and the other electrode is formed in the shape of a U-shaped elongated metal carrier; on the legs of the carrier there is fastened the insulating material plate contacting another conducting layer in the insulating material plate, and the evaluation circuit is constructed in microelectronic technology, is electrically connected to the conducting layers, and is fastened on that part of the measuring sensor which projects from the liquid or solid, respectively.Type: GrantFiled: July 31, 1978Date of Patent: May 27, 1980Assignee: VDO Adolf Schindling AGInventors: Diethard Gothe, Jeffrey J. Nuske, Jurgen Friedrich
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Patent number: 4166920Abstract: A cable includes a plurality of elongated sections each composed of a tubular electric conductor, electric insulation surrounding the electric conductor, and an outer cable jacket surrounding the electric insulation. An inner tubular member of titanium or alloyed stainless steel is accommodated in the electric conductor and defines a channel for a cooling medium such as water. The inner tubular members of each two consecutive cable sections have flanges that are welded or soldered to one another, and a bridging element is interposed between the electric conductors of the two consecutive electric conductors and welded or soldered thereto. The electric conductor preferably is a circumferentially complete one-piece tubular element extruded onto the inner tubular member.Type: GrantFiled: July 19, 1977Date of Patent: September 4, 1979Assignee: Felten & Guilleaume Carlswerk AktiengesellschaftInventors: Jurgen Friedrich, Heinrich Brakelmann, Werner Rasquin