Patents by Inventor Ralf Forster
Ralf Forster 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: 10774823Abstract: A disposable cartridge (20) for a peristaltic micro pump is disclosed. The cartridge comprises a housing (21) with an inlet connector (25) and an outlet connector (26). A fluid channel (23) extends in the housing (21) between the inlet and the outlet with a channel section (22) of the fluid channel (23) provided by a flexible tube (24). One or more openings are provided adjacent to the channel section (22) in the housing (21) allowing one or more pump engaging elements of a pump drive to engage the flexible tube (24), compressing the flexible tube (24) to pump fluid through the fluid channel (23). Sealing elements (31, 32) with double flange extensions (31a, 31b) having a first inner flange (31a, 32a) and a second outer flange (31b, 32b) are provided to seal at the connectors (25, 26) and fix the tube (24) in the housing (21).Type: GrantFiled: April 13, 2017Date of Patent: September 15, 2020Assignee: Technische Universitat BerlinInventors: Andreas Loth, Ralf Förster
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Publication number: 20170298921Abstract: A disposable cartridge (20) for a peristaltic micro pump, comprising a housing (21); a inlet provided on the housing and comprising an inlet connector (25); an outlet provided on the housing and comprising an outlet connector (26); a fluid channel (23) extending in the housing (21) between the inlet and the outlet; a channel section (22) of the fluid channel (23), the channel section (22) provided by a flexible tube (24); one or more openings provided adjacent to the channel section (22) in the housing (21) in such a way that one or more pump engaging elements of a pump drive can engage with the flexible tube (24) through the opening for compressing the flexible tube (24) in a pumping process for pumping a fluid through the fluid channel (23); and a mounting device provided on the housing (21) for detachably mounting the housing (21) in a peristaltic micro pump housing. Furthermore, a peristaltic micro pump, comprising a disposable cartridge (20) is disclosed.Type: ApplicationFiled: April 13, 2017Publication date: October 19, 2017Inventors: Andreas LOTH, Ralf FORSTER
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Patent number: 8676354Abstract: The invention relates to an automation system having a number of objects to to be controlled, wherein the automation system comprises a framework based controller (21) for controlling basic functions (23) of at least one object of the number of objects by means of object-specific functional units (25), wherein the controller (21) is configured independently of the object, and comprises standardized interfaces (26) for the communicative incorporation of the object-specific functional units (25) by means of preconfigured functional requests, wherein each functional unit (25) is associated with at least one of the objects and configured for actuating the respective basic function (23) of the respectively associated object by means of object-specific control functions, wherein each object of the number of objects may be virtualized in the controller (21) by means of the associated object-specific functional units (25), and the objects of the number of objects respond and can be controlled by means of the object-sType: GrantFiled: September 2, 2009Date of Patent: March 18, 2014Assignee: KHS GmbHInventor: Ralf Förster
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Patent number: 8416546Abstract: A method for detecting the state of a load device which can be connected to a switching connection, wherein the switching connection can be coupled to, and decoupled from, a predefined switching potential. A voltage drop across the switching connection is used as a basis for detecting whether the load device is connected to the switching connection, the load device is not connected to the switching connection or there is a short circuit between the switching connection and a first or a second switching potential. An additional current source is connected to the switching connection at the same time as the switching connection is decoupled from the predefined switching potential.Type: GrantFiled: May 31, 2007Date of Patent: April 9, 2013Assignee: Continental Automotive GmbHInventors: Bastian Arndt, Ralf Förster, Marco Well, Gunther Wolfarth
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Patent number: 8360032Abstract: A circuit for controlling an inductive load, e.g. of a fuel injection valve, includes supply terminals for supplying a voltage, output terminals for connecting the load, and a detection device which is connected to at least one of the output terminals and is used for detecting the point in time at which the operation of the load is discontinued and/or detecting at least one fault case during a non-operational phase of the load. In order to render the detection process more reliable while using less circuitry, the detection device encompasses a current mirror with a first current source and a second current source. The current first is connected to one of the two output terminals during a detection phase. The current supplied by the second current source is evaluated as a signal of the detected result.Type: GrantFiled: January 23, 2009Date of Patent: January 29, 2013Assignee: Continental Automotive GmbHInventors: Andreas Baier, Ralf Förster, Christoph Haggenmiller, Gunther Wolfarth, Sami Zaki
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Patent number: 8269132Abstract: The invention relates to a method for electrical discharge machining of electrically non-conductive material in which a layer of an electrically conductive substance is applied as an auxiliary electrode on the electrically non-conductive material. Said method is characterized in that the electrically conductive substance is chemically converted by oxidative heat treatment after electrical discharge machining.Type: GrantFiled: February 16, 2007Date of Patent: September 18, 2012Assignee: Siemens AktiengesellschaftInventors: Ralf Förster, Karsten Klein, Ulrich Laudien, Silke Settegast, Ramesh Subramanian
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Publication number: 20120022669Abstract: The invention relates to an automation system having a number of objects to to be controlled, wherein the automation system comprises a framework based controller (21) for controlling basic functions (23) of at least one object of the number of objects by means of object-specific functional units (25), wherein the controller (21) is configured independently of the object, and comprises standardized interfaces (26) for the communicative incorporation of the object-specific functional units (25) by means of preconfigured functional requests, wherein each functional unit (25) is associated with at least one of the objects and configured for actuating the respective basic function (23) of the respectively associated object by means of object-specific control functions, wherein each object of the number of objects may be virtualized in the controller (21) by means of the associated object-specific functional units (25), and the objects of the number of objects respond and can be controlled by means of the object-sType: ApplicationFiled: September 2, 2009Publication date: January 26, 2012Applicant: KHS GmbHInventor: Ralf Förster
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Patent number: 7924065Abstract: An integrated circuit has a control circuit (2) for a power field-effect transistor (3), wherein the integrated circuit has a first input (202) for receiving a control signal (CE) and an output to switch the field-effect transistor (3) on or off. The control circuit further has a driver circuit for providing a voltage level at the output in response of the control signal. A second input is provided for receiving a configuration signal, the configuration signal for configuring the voltage level being provided by the driver circuit in response to the control signal.Type: GrantFiled: July 17, 2008Date of Patent: April 12, 2011Assignee: Continental Automotive GmbHInventors: Ralf Förster, Marco Well, Gunther Wolfarth
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Publication number: 20100038344Abstract: The invention relates to a method for electrical discharge machining of electrically non-conductive material in which a layer of an electrically conductive substance is applied as an auxiliary electrode on the electrically non-conductive material. Said method is characterized in that the electrically conductive substance is chemically converted by oxidative heat treatment after electrical discharge machining.Type: ApplicationFiled: February 16, 2007Publication date: February 18, 2010Inventors: Ralf Förster, Karsten Klein, Ulrich Laudien, Silke Settegast, Ramesh Subramanian
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Publication number: 20100014202Abstract: An integrated circuit has a control circuit (2) for a power field-effect transistor (3), wherein the integrated circuit has a first input (202) for receiving a control signal (CE) and an output to switch the field-effect transistor (3) on or off. The control circuit further has a driver circuit for providing a voltage level at the output in response of the control signal. A second input is provided for receiving a configuration signal, the configuration signal for configuring the voltage level being provided by the driver circuit in response to the control signal.Type: ApplicationFiled: July 17, 2008Publication date: January 21, 2010Inventors: Ralf Forster, Marco Well, Gunther Wolfarth
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Publication number: 20090309607Abstract: A method for detecting the state of a load device which can be connected to a switching connection, wherein the switching connection can be coupled to, and decoupled from, a predefined switching potential. A voltage drop across the switching connection is used as a basis for detecting whether the load device is connected to the switching connection, the load device is not connected to the switching connection or there is a short circuit between the switching connection and a first or a second switching potential. An additional current source is connected to the switching connection at the same time as the switching connection is decoupled from the predefined switching potential.Type: ApplicationFiled: May 31, 2007Publication date: December 17, 2009Applicant: CONTINENTAL AUTOMOTIVE GMBHInventors: Bastian Arndt, Ralf Förster, Marco Well, Gunther Wolfarth
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Patent number: 7596436Abstract: The operating voltage is monitored in a microcontroller having associated output stages which are used to control components. In the case of over-voltage, the output stage is disconnected. Two technology-related, voltage monitoring devices working in different operating voltage ranges are provided. Due to the combination thereof, a highly precise disconnection threshold and a greater area for the operating voltage, which is to be monitored, can be obtained. If a malfunction of an over-voltage occurs, the output stages can be disconnected in a reliable manner.Type: GrantFiled: April 8, 2005Date of Patent: September 29, 2009Assignee: Siemens AktiengesellschaftInventors: Johann Falter, Alfons Fisch, Ralf Förster, Marco Kick, Thomas Maier, Norman Marenco, Peter Skotzek
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Publication number: 20090200274Abstract: The invention relates to an electrode arrangement for the electrical discharge machining of an electrically non-conductive material, which comprises a first component for removing the electrically non-conductive material and a second component for depositing an electrically conductive substance on the electrically non-conductive material.Type: ApplicationFiled: February 16, 2007Publication date: August 13, 2009Inventors: Ralf Förster, Karsten Klein, Ulrich Laudien, Silke Settegast, Ramesh Subramanian
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Patent number: 7548070Abstract: A method and a circuit are provided for the continuous detection of a line break in a full bridge controlling an inductive load. When the full bridge is switched off or on, a pre-determinable switching device of the circuit is switched first, and then a potential applied to a connection between the switching device and the load is tapped. The tapped potential is then compared with the ground potential when the switching device is connected to the supply potential, or with the supply potential when the switching device is connected to the ground potential. A line break is then determined when the two compared potentials are not different in the free running state thereof.Type: GrantFiled: January 25, 2006Date of Patent: June 16, 2009Assignee: Continental Automotive GmbHInventors: Ralf Förster, Gunther Wolfarth
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Publication number: 20090066355Abstract: A circuit with switchable functionality has a first integrated circuit, which has, in a first operating mode, full functionality and which has, in at least one other operating mode, a functionality which is reduced in comparison with the full functionality. The circuit further has an output terminal to which a coupling element can be coupled, an identification device which identifies whether a first supply potential has been applied to the output terminal via the coupling element and in this case produces a status signal with a first value and otherwise produces a status signal with a second value, a setting device, which sets the full or reduced functionality as a function of the value of the status signal in the first integrated circuit. The invention also relates to an electronic component having such a circuit arrangement.Type: ApplicationFiled: March 8, 2007Publication date: March 12, 2009Applicant: CONTINENTAL AUTOMOTIVE GMBHInventors: Thomas Frohnhofer, Ralf Forster, Dieter Sass
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Publication number: 20080212254Abstract: A control circuit for a switching device with a relay and a switch. The control circuit is configured in such a way as to produce a hold signal for a predetermined period of time when a start signal is supplied thereto. The control circuit is also configured in such a way as to produce the hold signal for the predefined period of time independently of the course of the start signal during the predefined period of time. The control circuit is also configured in order to activate a switch output when at least one of two conditions is met. The switch enables the relay to be supplied with current when the switch output is activated, otherwise it prevents the relay from being supplied with current.Type: ApplicationFiled: November 25, 2005Publication date: September 4, 2008Applicant: SIEMENS AKTIENGESELLSCHAFTInventors: Bastian Arndt, Ralf Forster, Gunther Wolfarth
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Publication number: 20080143340Abstract: A method and a circuit are provided for the continuous detection of a line break in a full bridge controlling an inductive load. When the full bridge is switched off or on, a pre-determinable switching device of the circuit is switched first, and then a potential applied to a connection between the switching device and the load is tapped. The tapped potential is then compared with the ground potential when the switching device is connected to the supply potential, or with the supply potential when the switching device is connected to the ground potential. A line break is then determined when the two compared potentials are not different in the free running state thereof.Type: ApplicationFiled: January 25, 2006Publication date: June 19, 2008Applicant: SIEMENS AKTIENGESELLSCHAFTInventors: Ralf Forster, Gunther Wolfarth
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Publication number: 20080004765Abstract: The operating voltage is monitored in a microcontroller having associated output stages which are used to control components. In the case of over-voltage, the output stage is disconnected. Two technology-related, voltage monitoring devices working in different operating voltage ranges are provided. Due to the combination thereof, a highly precise disconnection threshold and a greater area for the operating voltage, which is to be monitored, can be obtained. If a malfunction of an over-voltage occurs, the output stages can be disconnected in a reliable manner.Type: ApplicationFiled: April 8, 2005Publication date: January 3, 2008Applicant: SIEMENS AKTIENGESELLSCHAFTInventors: Johann Falter, Alfons Fisch, Ralf Forster, Marco Kick, Thomas Maier, Norman Marenco, Peter Skotzek
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Patent number: 7265535Abstract: A circuit configuration providing a diagnostic signal for a power switching device which switches a load has a test circuit, a filter device, a validation device, and a coding device. The test circuit tests the power switching device and generates error symptoms for characterizing error types of different priorities. The filter device, depending on an activation signal activating the power switching device, provides a validity signal for the generated error symptoms. The validity signal specifies the validity of the corresponding error symptom in each case. The validation device validates a generated error symptom depending on the associated validity signal in each case and validates the validated activation signal and from this generates a group of is states and the associated complementary states. The coding device codes the states and complementary states depending on the priorities of the error types assigned to the states and complementary states.Type: GrantFiled: November 10, 2005Date of Patent: September 4, 2007Assignee: Siemens AktiengesellschaftInventors: Bastian Arndt, Ralf Förster, Konstantin Thiveos, Gunther Wolfarth
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Publication number: 20060129889Abstract: A circuit configuration providing a diagnostic signal for a power switching device which switches a load has a test circuit, a filter device, a validation device, and a coding device. The test circuit tests the power switching device and generates error symptoms for characterizing error types of different priorities. The filter device, depending on an activation signal activating the power switching device, provides a validity signal for the generated error symptoms. The validity signal specifies the validity of the corresponding error symptom in each case. The validation device validates a generated error symptom depending on the associated validity signal in each case and validates the validated activation signal and from this generates a group of is states and the associated complementary states. The coding device codes the states and complementary states depending on the priorities of the error types assigned to the states and complementary states.Type: ApplicationFiled: November 10, 2005Publication date: June 15, 2006Inventors: Bastian Arndt, Ralf Forster, Konstantin Thiveos, Gunther Wolfarth