Patents by Inventor Rainer Hofmann
Rainer Hofmann 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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Publication number: 20230366439Abstract: A method for preventing stalling of an internal combustion engine of a motor vehicle, wherein the motor vehicle has at least one internal combustion engine, at least one automatically controlled clutch, and at least one transmission, wherein a drive shaft of the internal combustion engine can be coupled to a transmission input shaft of the transmission by means of the clutch to transmit torque, wherein the clutch is disengaged if a calculated rotational speed value of the drive shaft is less than a certain threshold value, and wherein the rotational speed value is calculated, in particular continually or continuously, as a function of a determined, current rotational speed of the drive shaft and as a function of a determined, current speed gradient of the drive shaft.Type: ApplicationFiled: May 10, 2023Publication date: November 16, 2023Applicant: Volkswagen AktiengesellschaftInventor: Rainer HOFMANN
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Patent number: 11788629Abstract: A valve armature of a solenoid valve includes an armature body having a blind hole in which an elastomer seal is vulcanized in. The armature body is manufactured in a cold forming process, in which a final axial linear dimension of the armature body is also determined. Furthermore, a valve having such a valve armature is presented.Type: GrantFiled: December 1, 2021Date of Patent: October 17, 2023Assignee: BÜRKERT WERKE GMBH & CO. KGInventors: Christian Bezold, Dieter Schmieg, Tobias Griebel, Rainer Hofmann
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Publication number: 20220178450Abstract: A valve armature of a solenoid valve includes an armature body having a blind hole in which an elastomer seal is vulcanized in. The armature body is manufactured in a cold forming process, in which a final axial linear dimension of the armature body is also determined. Furthermore, a valve having such a valve armature is presented.Type: ApplicationFiled: December 1, 2021Publication date: June 9, 2022Inventors: Christian BEZOLD, Dieter SCHMIEG, Tobias GRIEBEL, Rainer HOFMANN
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Patent number: 10989300Abstract: The invention relates to an operating method for an automatic transmission, particularly for an automatic variable-speed transmission and/or dual-clutch transmission, for a motor vehicle. The automatic transmission can be operated in a cost-effective manner, particularly with reduced component wear and increased service life, and/or the driving comfort of the vehicle can be improved such that when lifting of at least one driven vehicle wheel off the roadway during braking is detected by the operating method, then for the length of said braking process, in the event of an incomplete gear change into a gear of the transmission, the engagement of a gear is prevented and/or the beginning of a gear change into a gear of the transmission is prevented.Type: GrantFiled: June 26, 2018Date of Patent: April 27, 2021Assignee: VOLKSWAGEN AKTIENGESELLSCHAFTInventors: Rainer Hofmann, Axel Schamscha
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Publication number: 20200173549Abstract: The invention relates to an operating method for an automatic transmission, particularly for an automatic variable-speed transmission and/or dual-clutch transmission, for a motor vehicle. The automatic transmission can be operated in a cost-effective manner, particularly with reduced component wear and increased service life, and/or the driving comfort of the vehicle can be improved such that when lifting of at least one driven vehicle wheel off the roadway during braking is detected by the operating method, then for the length of said braking process, in the event of an incomplete gear change into a gear of the transmission, the engagement of a gear is prevented and/or the beginning of a gear change into a gear of the transmission is prevented.Type: ApplicationFiled: June 26, 2018Publication date: June 4, 2020Applicant: Volkswagen AktiengesellschaftInventors: Rainer Hofmann, Axel Schamscha
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Publication number: 20200001595Abstract: A method for depositing wet printed sheets and forming a sheet stack in a delivery of a printing machine. An auxiliary stack which is separate from the sheet stack has sheet-shaped intermediate layers that are usable as moisture barriers in the sheet stack. A plurality of sheets are stacked on top of one another to form a first section of the sheet stack. Then an intermediate layer is moved from the auxiliary stack onto the section of the sheet stack. A plurality of sheets are stacked on top of one another and on the intermediate layer to form a further section. The intermediate layer is thus arranged in the sheet stack between the first section and the further section. The placement of the intermediate layers provides a way of reducing or even eliminating quality losses in sheets and/or sheet stacks caused by moisture and moisture exchange.Type: ApplicationFiled: May 21, 2019Publication date: January 2, 2020Inventors: SEBASTIAN WILHELM, RAINER HOFMANN, SABINE ROEHL, JAN GASSENSCHMIDT, ROLF MUELLER
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Patent number: 9996775Abstract: A method for configuring the further processing of printing substrates in a digital printing machine includes modifying settings for configuring the further processing while the machine is in operation. The settings of the further processing are created by using a configuration program running on a control unit of the digital printing machine. The modified settings have an effect on at least one region to be further processed on the printing substrate and the settings are printed onto the printing substrate so as to be allocated to a corresponding region to be further processed.Type: GrantFiled: April 25, 2016Date of Patent: June 12, 2018Assignee: Heidelberger Druckmaschinen AGInventors: Bernd Sitzmann, Rolf Kuendgen, Patrick Roth, Rainer Hofmann, Michael Postels
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Publication number: 20160314384Abstract: A method for configuring the further processing of printing substrates in a digital printing machine includes modifying settings for configuring the further processing while the machine is in operation. The settings of the further processing are created by using a configuration program running on a control unit of the digital printing machine. The modified settings have an effect on at least one region to be further processed on the printing substrate and the settings are printed onto the printing substrate so as to be allocated to a corresponding region to be further processed.Type: ApplicationFiled: April 25, 2016Publication date: October 27, 2016Inventors: BERND SITZMANN, ROLF KUENDGEN, PATRICK ROTH, RAINER HOFMANN, MICHAEL POSTELS
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Patent number: 8438975Abstract: A printing press includes an apparatus for handling or manipulating varnishing plates or printing plates, having a plate feed channel which is at least temporarily disposed in a plate feed position for feeding a varnishing or printing plate out of the plate feed channel to a plate cylinder. A seat or step surface for an operator is disposed above the plate feed channel.Type: GrantFiled: March 18, 2009Date of Patent: May 14, 2013Assignee: Heidelberger Druckmaschinen AGInventor: Rainer Hofmann
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Patent number: 8408128Abstract: A method for operating a cleaning apparatus, having a trough and a brush disposed in the trough, in a printing press, includes first, second and third steps. In the first step, a cylinder of the printing press is cleaned by the cleaning apparatus, with the brush bearing against the cylinder. In the second step, the brush is moved away from the cylinder, and a level of a liquid in the trough is changed, resulting in the liquid being brought into contact with the brush. In the third step, the brush is cleaned by the liquid in the trough. A printing press for carrying out the method is also provided.Type: GrantFiled: September 3, 2009Date of Patent: April 2, 2013Assignee: Heidelberger Druckmaschinen AGInventors: Stephan Balleis, Rainer Hofmann, Patrick Roth, Bernd Sitzmann, Markus Uihlein
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Publication number: 20120279323Abstract: An inspection device includes a distal area, a proximal area and a flexible area disposed between the distal area and the proximal area. The flexible area includes a plurality of segments disposed displaceably to each other. At least one external guide element is disposed outside of the flexible area, between the distal area and the proximal area so that the distal area can be displaced with respect to the proximal area with the aid of the external guide element.Type: ApplicationFiled: November 9, 2010Publication date: November 8, 2012Inventors: Karsten Broda, Rainer Hofmann
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Patent number: 8146452Abstract: An apparatus for driving a roller of a printing press includes a main motor configured to drive the roller through a first gear wheel and a first freewheel, and an auxiliary motor configured to drive the roller through a second gear wheel and a second freewheel. A brake that is different from the main motor, for example a band brake, is configured to brake the roller during overrunning of the roller following a machine stop signal. A printing press having the apparatus is also provided.Type: GrantFiled: September 11, 2008Date of Patent: April 3, 2012Assignee: Heidelberger Druckmaschinen AGInventors: Stephan Balleis, Rainer Hofmann, Patrick Roth, Bernd Sitzmann, Markus Uihlein
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Patent number: 7737103Abstract: The invention relates to an aqueous multicomponent system comprising a hydrophobe modified polymer which forms a high-viscosity liquid during mixing and to the use of said multicomponent system, in particular, in the form of a cosmetic component or a washing and/or rinsing and/or cleaning agent.Type: GrantFiled: June 12, 2006Date of Patent: June 15, 2010Assignee: Henkel AG & Co. KGaAInventors: Matthias Hloucha, Danuta Bedrunka, Rainer Hofmann, Wolfgang von Rybinski, Erik Hattemer, Doris Dahlmann
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Publication number: 20100050892Abstract: A method for operating a cleaning apparatus, having a trough and a brush disposed in the trough, in a printing press, includes first, second and third steps. In the first step, a cylinder of the printing press is cleaned by the cleaning apparatus, with the brush bearing against the cylinder. In the second step, the brush is moved away from the cylinder, and a level of a liquid in the trough is changed, resulting in the liquid being brought into contact with the brush. In the third step, the brush is cleaned by the liquid in the trough. A printing press for carrying out the method is also provided.Type: ApplicationFiled: September 3, 2009Publication date: March 4, 2010Applicant: HEIDELBERGER DRUCKMASCHINEN AKTIENGESELLSCHAFTInventors: Stephan Balleis, Rainer Hofmann, Patrick Roth, Bernd Sitzmann, Markus Uihlein
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Patent number: 7624658Abstract: A transmission configuration includes an automated dual-clutch transmission having two transmission sections with respective input shafts, respective output shafts and respective motor clutches. The motor clutches are connected, on a motor side thereof, to a drive shaft and to a respective one of the input shafts on a transmission side thereof. A drive-side speed sensor unit is disposed at the drive shaft. An input-side speed sensor configuration includes sensor wheels connected, fixed against relative rotation, to respective ones of the input shafts, and pulse sensors disposed stationary with respect to a housing and within an effective range of the respective sensor wheels. The input-side speed sensor configuration is configured to detect a speed of the input shafts and a direction of rotation of at least one of the input shafts. A method for controlling an automated dual-clutch transmission is also provided.Type: GrantFiled: March 6, 2008Date of Patent: December 1, 2009Assignees: Volkswagen Aktiengesellschaft, GETRAG Getriebe- und Zahnradfabrik Hermann Hagenmeyer GmbH & Cie KGInventors: Jörg Fähland, Bernd Cappelmann, Rainer Hofmann, Ansgar Damm, Günter Rühle, Martin Seufert, Matthias Beck, Josef Glatthaar, Lothar Herdle
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Publication number: 20090255429Abstract: A printing press includes an apparatus for handling or manipulating varnishing plates or printing plates, having a plate feed channel which is at least temporarily disposed in a plate feed position for feeding a varnishing or printing plate out of the plate feed channel to a plate cylinder. A seat or step surface for an operator is disposed above the plate feed channel.Type: ApplicationFiled: March 18, 2009Publication date: October 15, 2009Applicant: HEIDELBERGER DRUCKMASCHINEN AKTIENGESELLSCHAFTInventor: Rainer Hofmann
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Publication number: 20090120224Abstract: An apparatus for driving a roller of a printing press includes a main motor configured to drive the roller through a first gear wheel and a first freewheel, and an auxiliary motor configured to drive the roller through a second gear wheel and a second freewheel. A brake that is different from the main motor, for example a band brake, is configured to brake the roller during overrunning of the roller following a machine stop signal. A printing press having the apparatus is also provided.Type: ApplicationFiled: September 11, 2008Publication date: May 14, 2009Applicant: HEIDELBERGER DRUCKMASCHINEN AGInventors: Stephan Balleis, Rainer Hofmann, Patrick Roth, Bernd Sitzmann, Markus Uihlein
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Patent number: 7487866Abstract: A hydraulic circuit for a motor vehicle transmission, preferably a twin-clutch transmission, is connected for cooling at least one clutch of the transmission. The hydraulic circuit is preferably a low-pressure circuit and it includes at least one hydraulic pump, at least one filter element, for filtering the hydraulic oil, and at least one pressure-regulating valve. The circuit-related control sequence and the power consumption of the hydraulic pump are optimized in that at least one adjusting valve is provided in order to control the volume flow of cooling oil flowing to the clutch, in that a pressure-compensation valve is provided in addition, and in that the pressure-regulating valve, the adjusting valve and/or the pressure-compensation valve are arranged and/or formed within the hydraulic circuit such that the pressure difference between the supply pressure and the establishing cooling-oil pressure is essentially constant.Type: GrantFiled: June 28, 2006Date of Patent: February 10, 2009Assignee: Volkswagen AGInventors: Georg Kruse, Rainer Hofmann, Carsten Adomeit, Lloyd Storey, Shaun Mepham
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Publication number: 20080153666Abstract: A transmission configuration includes an automated dual-clutch transmission having two transmission sections with respective input shafts, respective output shafts and respective motor clutches. The motor clutches are connected, on a motor side thereof, to a drive shaft and to a respective one of the input shafts on a transmission side thereof. A drive-side speed sensor unit is disposed at the drive shaft. An input-side speed sensor configuration includes sensor wheels connected, fixed against relative rotation, to respective ones of the input shafts, and pulse sensors disposed stationary with respect to a housing and within an effective range of the respective sensor wheels. The input-side speed sensor configuration is configured to detect a speed of the input shafts and a direction of rotation of at least one of the input shafts. A method for controlling an automated dual-clutch transmission is also provided.Type: ApplicationFiled: March 6, 2008Publication date: June 26, 2008Applicants: VOLKSWAGEN AKTIENGESELLSCHAFT, GETRAG Getriebe- und Zahnradfabrik Hermann Hagenmeyer GmbH & Cie KGInventors: Jorg Fahland, Bernd Cappelmann, Rainer Hofmann, Ansgar Damm, Gunter Ruhle, Martin Seufert, Matthias Beck, Josef Glatthaar, Lothar Herdle
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Patent number: 7367919Abstract: A transmission configuration includes an automated dual-clutch transmission having two transmission sections with respective input shafts, respective output shafts and respective motor clutches. The motor clutches are connected, on a motor side thereof, to a drive shaft and to a respective one of the input shafts on a transmission side thereof. A drive-side speed sensor unit is disposed at the drive shaft. An input-side speed sensor configuration includes sensor wheels connected, fixed against relative rotation, to respective ones of the input shafts, and pulse sensors disposed stationary with respect to a housing and within an effective range of the respective sensor wheels. The input-side speed sensor configuration is configured to detect a speed of the input shafts and a direction of rotation of at least one of the input shafts. A method for controlling an automated dual-clutch transmission is also provided.Type: GrantFiled: March 26, 2007Date of Patent: May 6, 2008Assignees: Volkswagen Aktiengesellschaft, GETRAG Getriebe- und Zahnradfabrik Hermann Hagenmeyer GmbH & Cie KGInventors: Jörg Fähland, Bernd Cappelmann, Rainer Hofmann, Ansgar Damm, Günter Rühle, Martin Seufert, Matthias Beck, Josef Glatthaar, Lothar Herdle