Patents by Inventor Ralf Foerster
Ralf Foerster 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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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: 8283952Abstract: A circuit includes a switching unit, a switching element, and a control unit. The control unit provides at least one supply signal depending on a switching position of the switching element. An advance signal and the supply signal(s) of the control unit are assigned to the switching unit on the input side. The switching unit supplies and controls predetermined components of the switching unit, which are configured to control the switching element in accordance with the advance signal in such a way that the components activate the switching element. The switching unit is also configured to detect the supply signal(s) present once the switching element has been activated and in response thereto to switch to supplying the predetermined components by way of the supply signal(s).Type: GrantFiled: February 9, 2009Date of Patent: October 9, 2012Assignee: Continental Automotive GmbHInventors: Bastian Arndt, Johann Falter, Ralf Foerster, Franz Laberer, Gunther Wolfarth
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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: 20110043272Abstract: A circuit includes a switching unit, a switching element, and a control unit. The control unit provides at least one supply signal depending on a switching position of the switching element. An advance signal and the supply signal(s) of the control unit are assigned to the switching unit on the input side. The switching unit supplies and controls predetermined components of the switching unit, which are configured to control the switching element in accordance with the advance signal in such a way that the components activate the switching element. The switching unit is also configured to detect the supply signal(s) present once the switching element has been activated and in response thereto to switch to supplying the predetermined components by way of the supply signal(s).Type: ApplicationFiled: February 9, 2009Publication date: February 24, 2011Applicant: CONTINENTAL AUTOMOTIVE GMBHInventors: Bastian Arndt, Johann Falter, Ralf Foerster, Franz Laberer, Gunther Wolfarth
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Publication number: 20110001459Abstract: 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: ApplicationFiled: January 23, 2009Publication date: January 6, 2011Applicant: CONTINENTAL AUTOMOTIVE GMBHInventors: Andreas Baier, Ralf Foerster, Christoph Haggenmiller, Gunther Wolfarth, Sami Zaki
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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: 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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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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Patent number: 6799564Abstract: An ignition device (2) for an internal combustion engine, a controller (1) for said ignition device (2) and an ignition unit comprising the ignition device (2) and controller (1) are disclosed, whereby the controller (1) is linked to the ignition device (2) by means of a bi-directional control line (5).Type: GrantFiled: November 26, 2003Date of Patent: October 5, 2004Assignee: Siemens AktiengesellschaftInventors: Ralf Förster, Stefan Haimerl, Kurt Kienbaum
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Patent number: 6792926Abstract: An ignition system (1, 2, 41) for an internal combustion engine is provided with an outlet for electric activation of an ignition element (9) for a combustion element in an internal combustion engine, an energy accumulator (3) for accumulating the electric energy, a control element (4) which is connected to the energy accumulator (3) and which is used to charge the energy accumulator (3) during a predefined charging time, in addition to a measuring unit for detecting the charge state of the energy accumulator (3). In order to set the charge time for the energy accumulator, a timer is provided, said timer being connected to the control element (4) on the outlet side, and the measuring unit (6, 10-12) is connected to said timer in a feedback loop, whereby the timer adjusts the charge time according to the charge state of the measured charge state of the energy accumulator.Type: GrantFiled: November 26, 2003Date of Patent: September 21, 2004Assignee: Siemens AktiengesellschaftInventors: Ralf Förster, Stefan Haimerl, Kurt Kienbaum
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Patent number: 6257216Abstract: The primary winding of an ignition coil is connected in series with an ignition switch that can be switched by a control circuit. A circuit including a capacitor, a resistor, and a diode is configured between the control terminal and the collector of the ignition switch. When the primary current is switched on, the capacitor discharge brings about a voltage reduction at the base of the ignition switch resulting in slowing down the trailing voltage edge at the collector of the ignition switch.Type: GrantFiled: March 23, 2000Date of Patent: July 10, 2001Assignee: Siemens AktiengesellschaftInventors: Ralf Förster, Alfons Fisch
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Patent number: 6204693Abstract: An apparatus is described for regulating the flow of current through a load in which the flow of current is monitored in the form of a reference voltage by an analog input and a digital input of an arithmetic and logic unit. The voltage measured at the analog input is used to regulate the flow of current. The voltage measured at the digital input either as a low or as a high signal is used to switch off the flow of current when there is a low signal.Type: GrantFiled: October 4, 1999Date of Patent: March 20, 2001Assignee: Siemens AktiengesellschaftInventors: Ralf Förster, Alfons Fisch