Patents by Inventor Johannes Graf
Johannes Graf 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: 20250141233Abstract: Method for optimizing a maximum power point of a solar cell stack having modules, each including an MLSD unit, and an inverter. The MLSD unit shuts down the module when module voltage falls below a first voltage threshold, and switches it on, when a predefined second voltage threshold is exceeded. For optimal performance, the solar cell stack carries out: Defining, changing an electrical control parameter to a first wait value so that the second voltage threshold is exceeded exceeded; maintaining first wait value for a first time period so the modules are switched on by the MLSD units; changing electrical control parameter to a threshold value in a variation range and determining current-voltage curves for the modules in variation range; determining maximum stack power from current-voltage curves of the modules in the variation range; and predefining the determined maximum stack power as the maximum performance point.Type: ApplicationFiled: January 26, 2023Publication date: May 1, 2025Applicant: Fronius International GmbHInventors: Richard GRASBÖCK, Johannes GRAF, Stefan WIESER, Christian FASTHUBER
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Patent number: 11555224Abstract: A process of producing a partially hardened metallic formed part comprises: heating a semi-finished product of hardenable hot-formable steel sheet to a hardening temperature; hot-forming the heated semi-finished product in a combined hot-forming cutting device into a three-dimensional formed part; cutting the formed part in the combined hot-forming cutting device; pressure-hardening the formed part in the hot-forming cutting device into a hardened formed part such that a first partial region is hardened by rapid cooling and that a second partial region of the formed part is heat-treated so as to comprise a greater ductility and a lower strength than the first partial region, wherein the operation of cutting the formed part takes place at least in one of the first and second partial region. A combined hot-forming cutting device can be used to produce a metallic formed part.Type: GrantFiled: January 13, 2020Date of Patent: January 17, 2023Assignee: WEBA WERKZEUGBAU BETRIEBS GMBHInventors: Johannes Graf, Klaus Weber
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Publication number: 20210102580Abstract: In a method for producing a subassembly for a household appliance, at least one of a first rail and a separate second rail is cleaned by a mechanical and/or chemical cleaning operation. Subsequently the first and second rails are connected to one another so as to be able to slide relative to one another and thereby form a rail withdrawal device of the subassembly.Type: ApplicationFiled: December 16, 2020Publication date: April 8, 2021Inventors: Johann Graf, Angelika Namberger, Philipp Nather
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Patent number: 10948020Abstract: In a method for producing a subassembly for a household appliance, at least one of a first rail and a separate second rail is cleaned by a mechanical and/or chemical cleaning operation. Subsequently the first and second rails are connected to one another so as to be able to slide relative to one another and thereby form a rail withdrawal device of the subassembly.Type: GrantFiled: September 14, 2017Date of Patent: March 16, 2021Assignee: BSH Hausgeräte GmbHInventors: Johann Graf, Angelika Namberger, Philipp Nather
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Publication number: 20200149125Abstract: A process of producing a partially hardened metallic formed part comprises: heating a semi-finished product of hardenable hot-formable steel sheet to a hardening temperature; hot-forming the heated semi-finished product in a combined hot-forming cutting device into a three-dimensional formed part; cutting the formed part in the combined hot-forming cutting device; pressure-hardening the formed part in the hot-forming cutting device into a hardened formed part such that a first partial region is hardened by rapid cooling and that a second partial region of the formed part is heat-treated so as to comprise a greater ductility and a lower strength than the first partial region, wherein the operation of cutting the formed part takes place at least in one of the first and second partial region. A combined hot-forming cutting device can be used to produce a metallic formed part.Type: ApplicationFiled: January 13, 2020Publication date: May 14, 2020Inventors: Johannes Graf, Klaus Weber
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Patent number: 10584395Abstract: A process of producing a partially hardened metallic formed part comprises: heating a semi-finished product of hardenable hot-formable steel sheet to a hardening temperature; hot-forming the heated semi-finished product in a combined hot-forming cutting device into a three-dimensional formed part; cutting the formed part in the combined hot-forming cutting device; pressure-hardening the formed part in the hot-forming cutting device into a hardened formed part such that a first partial region is hardened by rapid cooling and that a second partial region of the formed part is heat-treated so as to comprise a greater ductility and a lower strength than the first partial region, wherein the operation of cutting the formed part takes place at least in one of the first and second partial region. A combined hot-forming cutting device can be used to produce a metallic formed part.Type: GrantFiled: March 22, 2016Date of Patent: March 10, 2020Assignee: WEBA WERKZEUGBAU BETRIEBS GMBHInventors: Johannes Graf, Klaus Weber
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Publication number: 20200032849Abstract: In a method for producing a subassembly for a household appliance, at least one of a first rail and a separate second rail is cleaned by a mechanical and/or chemical cleaning operation. Subsequently the first and second rails are connected to one another so as to be able to slide relative to one another and thereby form a rail withdrawal device of the subassembly.Type: ApplicationFiled: April 14, 2017Publication date: January 30, 2020Inventors: Johann GRAF, Angelika NAMBERGER, Philipp NATHER
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Publication number: 20190180570Abstract: A gaming system may include a gaming machine having a monetary input device, a wager input device, and a processor. The processor may establish a credit balance based on the monetary value, decrease the credit balance by the selected wager, and present the wagering game at an interface. A game server may transmit content for the wagering game to the gaming machine. The game server may determine prize payouts during game play by detecting sporting event outcomes occurring during live sporting games. Each detected sporting event outcome may correspond to a previously determined prize value. The prize values may be determined based on a data analysis of the probable occurrence of each sporting event outcome in previously completed sporting events.Type: ApplicationFiled: December 13, 2017Publication date: June 13, 2019Applicant: Novomatic AGInventors: Roman Czubak, Johann Graf
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Patent number: 9903255Abstract: The invention relates to a coolant circuit (1) for an internal combustion engine (2), wherein the coolant can circulate between the internal combustion engine (2) and a heat sink (3) depending upon a switchable valve (4), which is closed in the initial state during a cold start of the internal combustion engine (2), wherein the valve (4) can be switched to an at least partially opened sequential state depending on an exhaust gas mass flow emitted by the internal combustion engine (2), and wherein a control device (6) determines an integral of the exhaust gas mass flow with respect to the time and switches the valve (4) into the sequential state when an integral threshold value is exceeded.Type: GrantFiled: June 30, 2012Date of Patent: February 27, 2018Assignee: Audi AGInventor: Johann Graf
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Patent number: 9611765Abstract: A method and apparatus for operating a valve train of an internal combustion engine having a main camshaft for which at least one rotationally-fixed cam carrier is provided that can be shifted between two axial positions is disclosed. An actuator cooperates with at least one shift gate to axially shift the cam carrier into a target position. The actuator comprises a driver that is extended in the direction of at least one sliding slot of the shift gate to shift the cam carrier. The sliding slot has an ejection ramp in an ejection region that ejects the driver out of the sliding slot until the conclusion of the shift. A voltage induced in the actuator by the ejection is detected, the induced voltage is integrated across a rotational-angle range associated with the ejection region, and a confirmation signal is generated when the integrated voltage exceeds a threshold level.Type: GrantFiled: June 5, 2013Date of Patent: April 4, 2017Assignee: AUDI AGInventor: Johann Graf
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Publication number: 20160281185Abstract: A process of producing a partially hardened metallic formed part comprises: heating a semi-finished product of hardenable hot-formable steel sheet to a hardening temperature; hot-forming the heated semi-finished product in a combined hot-forming cutting device into a three-dimensional formed part; cutting the formed part in the combined hot-forming cutting device; pressure-hardening the formed part in the hot-forming cutting device into a hardened formed part such that a first partial region is hardened by rapid cooling and that a second partial region of the formed part is heat-treated so as to comprise a greater ductility and a lower strength than the first partial region, wherein the operation of cutting the formed part takes place at least in one of the first and second partial region,. A combined hot-forming cutting device can be used to produce a metallic formed part.Type: ApplicationFiled: March 22, 2016Publication date: September 29, 2016Inventors: Johannes Graf, Klaus Weber
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Publication number: 20150343721Abstract: A device for a resin-injection process for manufacturing an elongate fiber-composite component is disclosed having an upper die and a lower die, wherein the lower die forms a mold cavity for receiving a fiber-layer stack. The inner contour of the mold cavity substantially corresponds to the outer contour of the fiber-composite component to be produced. The device includes a gate 4 for introducing a matrix material into the mold cavity 5, and flow ducts which convey the matrix material are provided on the inner walls of the mold cavity. A method for manufacturing elongate fiber-composite components is disclosed, wherein a stack of a plurality of cut-to-size fiber layers is laid up in the mold cavity of a die comprising an upper die and a lower die. A higher fiber density is produced in the end regions of the stack of fiber layers than in the remaining regions when closing the die.Type: ApplicationFiled: May 27, 2015Publication date: December 3, 2015Inventors: Johannes GRAF, Dominik KAISER, Ralph KIESSLING, Jan KURZ, Dennis KLEINHANS, Johannes BOEKE, Marko MACIEJ
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Publication number: 20150136052Abstract: A method and apparatus for operating a valve train of an internal combustion engine having a main camshaft for which at least one rotationally-fixed cam carrier is provided that can be shifted between two axial positions is disclosed. An actuator cooperates with at least one shift gate to axially shift the cam carrier into a target position. The actuator comprises a driver that is extended in the direction of at least one sliding slot of the shift gate to shift the cam carrier. The sliding slot has an ejection ramp in an ejection region that ejects the driver out of the sliding slot until the conclusion of the shift. A voltage induced in the actuator by the ejection is detected, the induced voltage is integrated across a rotational-angle range associated with the ejection region, and a confirmation signal is generated when the integrated voltage exceeds a threshold level.Type: ApplicationFiled: June 5, 2013Publication date: May 21, 2015Applicant: AUDI AGInventor: Johann Graf
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Patent number: 8951590Abstract: A tubular bag packaging for bar-shaped food products is made of a film with first and second longitudinal edges. The film has a first seal section at the first longitudinal edge. A flap section at the second longitudinal edge has a second seal section along the second longitudinal edge. The film is closed at the seal sections by forming a continuous back seam in longitudinal direction as a fold-over seam. The film is sealed at transverse edges by transverse seams. The back seam has end face edges adjoining the transverse seams. The flap section has a linear separation cut as a tearing aid disposed on at least one of the end face edges and extending away from the end face edge in longitudinal direction. The film in the area of the second seal section with linear separating cut has a pressure deformation line that extends in longitudinal direction.Type: GrantFiled: September 2, 2011Date of Patent: February 10, 2015Assignee: Ritter Schönbuch Vermögensverwaltungs GmbH & Co. KGInventors: Klaus Dieter Hätinger, Johannes Graf
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Patent number: 8915127Abstract: In a method and a device for diagnosing a switchable coolant pump for circulating a coolant in a coolant circuit of an internal combustion engine, an actual value of the cylinder head temperature of the internal combustion engine is measured and the actual value of the cylinder head temperature is compared with a model value of the cylinder head temperature. The functionality of the coolant pump is assessed according to the comparison result.Type: GrantFiled: July 22, 2011Date of Patent: December 23, 2014Assignee: Audi AGInventor: Johann Graf
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Publication number: 20140182523Abstract: The invention relates to a coolant circuit (1) for an internal combustion engine (2), wherein the coolant can circulate between the internal combustion engine (2) and a heat sink (3) depending upon a switchable valve (4), which is closed in the initial state during a cold start of the internal combustion engine (2), wherein the valve (4) can be switched to an at least partially opened sequential state depending on an exhaust gas mass flow emitted by the internal combustion engine (2), and wherein a control device (6) determines an integral of the exhaust gas mass flow with respect to the time and switches the valve (4) into the sequential state when an integral threshold value is exceeded.Type: ApplicationFiled: June 30, 2012Publication date: July 3, 2014Applicant: Audi AGInventor: Johann Graf
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Patent number: 8589010Abstract: In a motor vehicle having two different drives, in particular an internal combustion engine and an electric drive, there are two control units for the respective drives and a leading control unit (Hybrid), which preferably controls the internal combustion engine and assigns torque to the individual drives when there are torque requests. Corresponding request signals are sent and implemented only if the existence of a certain situation (key inserted, “terminal 15”) is detected by an engine immobilizer control unit (EI master). In order for not too much time to pass due to the querying of the engine immobilizer control unit, the leading control unit informs the other control units that a query is sent so that the other control units can also send a query already.Type: GrantFiled: March 29, 2011Date of Patent: November 19, 2013Assignee: Audi AGInventors: Johann Graf, Martin Steinbrueck
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Patent number: 8569908Abstract: In a hybrid vehicle which has a plurality of drives, of which in particular one drive is a combustion engine and the other is an electric drive, all the drive control units, if appropriate even a transmission control unit, require enabling by an immobilizer control unit before the first control unit outputs control commands to communicate a torque request, input by a vehicle driver.Type: GrantFiled: April 15, 2011Date of Patent: October 29, 2013Assignee: Audi AGInventors: Johann Graf, Martin Steinbrueck
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Publication number: 20130156065Abstract: In a method and a device for diagnosing a switchable coolant pump for circulating a coolant in a coolant circuit of an internal combustion engine, an actual value of the cylinder head temperature of the internal combustion engine is measured and the actual value of the cylinder head temperature is compared with a model value of the cylinder head temperature. The functionality of the coolant pump is assessed according to the comparison result.Type: ApplicationFiled: July 22, 2011Publication date: June 20, 2013Applicant: Audi AGInventor: Johann Graf
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Publication number: 20130103237Abstract: In a motor vehicle having two different drives, in particular an internal combustion engine and an electric drive, there are two control units for the respective drives and a leading control unit (Hybrid), which preferably controls the internal combustion engine and assigns torque to the individual drives when there are torque requests. Corresponding request signals are sent and implemented only if the existence of a certain situation (key inserted, “terminal 15”) is detected by an engine immobilizer control unit (EI master). In order for not too much time to pass due to the querying of the engine immobilizer control unit, the leading control unit informs the other control units that a query is sent so that the other control units can also send a query already.Type: ApplicationFiled: March 29, 2011Publication date: April 25, 2013Inventors: Johann Graf, Martin Steinbrueck