Patents by Inventor Klaus Fischer

Klaus Fischer 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).

  • Method for producing polyalkenyl succinimide products, novel polyalkenylsuccinimide products with improved properties, intermediate products
    Patent number: 8263535
    Abstract: A process for the preparation of polyalkenylsuccinimide products, in particular polyisobutenylsuccinimide products, is proposed, in which a polyalkene is reacted with a maleic acid, maleic anhydride or a functional derivative thereof to give a polyalkenylsuccinic anhydride and the polyalkenylsuccinic anhydride is then reacted with an oligoamine or polyamine, the polyalkenylsuccinic anhydride either (a) first being reacted with an alcohol or phenol and, without isolation of the reaction product, then with the oligoamine or polyamine, or (b) the polyalkenylsuccinic anhydride being reacted with the oligoamine or polyamine in the presence of an alcohol or phenol and (c) if desired, the alcohol or the phenol then being removed. Novel polyalkenylsuccinimide products, in particular polyisobutenylsuccinimide products, and fuel additives are also proposed.
    Type: Grant
    Filed: May 14, 2002
    Date of Patent: September 11, 2012
    Assignee: BASF Aktiengesellschaft
    Inventors: Stephan Hueffer, Peter Schwab, Klaus Fischer, Thomas Berg, Helmut Mach
  • Cryobiopsy probe
    Patent number: 8216153
    Abstract: A cryosurgical instrument for separating a tissue sample from a biological tissue to be treated, for purposes of biopsy. The cryosurgical instrument includes a probe for bringing a probe head up to the biological tissue and a gas line for supplying cooling gas from a gas source of a cryosurgical apparatus to the probe head. The probe head cools a limited tissue region, by means of the supplied gas, for obtaining a tissue sample. The tissue sample can be separated from the surrounding tissue when frozen onto the probe head. The instrument has a support tube in which the probe is guided and which can be moved relative to the probe in such a way that the surrounding tissue can be supported by means of the support tube during the separating of the tissue sample. The instrument also includes an accelerating device that provides a predefined force for the separating process.
    Type: Grant
    Filed: June 20, 2008
    Date of Patent: July 10, 2012
    Assignee: ERBE Elektromedizin GmbH
    Inventors: Klaus Fischer, Mara Szyrach, Daniel Schäller, Matthias Voigtländer, Irina Sigle
  • Method for transmitting control information from a control device to a lamp unit as well as a corresponding illuminating system, lamp unit and control device
    Patent number: 8217589
    Abstract: A method is provided for driving at least one lamp unit, which is connected to an AC voltage power supply system. The method comprises modulating a control information item for the operation of the lamp unit onto the supplied AC voltage, decoding of the modulation received on the lamp unit side for reading the control information item and driving the light-emitting device in accordance with the control information item. Provision is made for a shunt to be produced in the line used for transmitting the control information item prior to or at the beginning of the modulation of the control information item. The disclosure also provides a lamp unit and a control device for implementing the method. The disclosure also provides a lighting system.
    Type: Grant
    Filed: January 22, 2010
    Date of Patent: July 10, 2012
    Assignees: Osram Gesellschaft mit beschrankter Haftung, Insta Elektro GmbH
    Inventors: Helmut Endres, Klaus Fischer, Friedhelm Holtz, Karl-Heinz Krause, Josef Kreittmayr, Friedhelm Wehlmann
  • ANTI-CARBONISATION DEVICE
    Publication number: 20120172789
    Abstract: An anti-carbonisation device (1) is proposed to prevent the carbonisation of tissue upon plasma coagulation by means of a suitable surgical instrument (3), wherein the surgical instrument (3) has a feed line for an oxidising agent (7), a feed line for a gas (5) and an electrode (9) for generation of a plasma, and wherein a gas-oxidising agent mixture for generation of a gas-oxidising agent plasma is provided by the anti-carbonisation device (1).
    Type: Application
    Filed: September 7, 2010
    Publication date: July 5, 2012
    Inventors: Klaus Fischer, Alexander Neugebauer, Markus Enderle, Matthias Zenker
  • MULTIFUNCTIONAL ELEMENT AND METHOD TO PREVENT THE CARBONISATION OF TISSUE BY MEANS OF A MULTIFUNCTIONAL ELEMENT
    Publication number: 20120172874
    Abstract: A multi-functional element suitable for performing at least two surgical/therapeutic interventions, for example, the injection and cutting of tissue, with an anti-carbonization device to prevent the carbonization of tissue upon plasma coagulation by way of a suitable surgical instrument, where the surgical instrument has a feed line for an oxidizing agent, a feed line for a gas and an electrode for generating a plasma. A gas oxidizing agent mixture for producing a gas oxidizing agent plasma is provided by the anti-carbonization device.
    Type: Application
    Filed: September 7, 2010
    Publication date: July 5, 2012
    Inventors: Klaus Fischer, Alexander Neugebauer, Markus Enderle, Matthias Zenker
  • ELECTROSURGICAL INSTRUMENT
    Publication number: 20120150167
    Abstract: An electrosurgical instrument for minimally invasive surgery, the instrument including two gripping parts which can be brought together into a gripping direction or moved apart counter to the gripping direction. At least one gripping part includes three or more electrically conductive sections, electrically insulated relative to each other. Each electrically conductive section may be separately connected to a high frequency (RF) current generator such that each electrically conductive section can be configured in various electrical configurations by the RF current generator.
    Type: Application
    Filed: July 21, 2010
    Publication date: June 14, 2012
    Applicant: ERBE ELEKTROMEDIZIN GMBH
    Inventors: Klaus Fischer, Daniel Schäller, Achim Brodbeck, Markus Enderle
  • CRYOSURGICAL INSTRUMENT
    Publication number: 20120071868
    Abstract: A cryosurgical instrument, in particular a biopsy instrument for transbronchial biopsy, having an elongated instrument base body with a distal and proximal end, in relation to the operational position, a cooled section close to the distal end and which removes tissue, said section being designed such that surrounding biological material adheres thereto, by means of cryoadhesion, when said instrument is in use in the cooled state, and a security section provided at a distance from the tissue removal section and which comprises means for preventing or reducing the adhesion of biological material.
    Type: Application
    Filed: April 14, 2010
    Publication date: March 22, 2012
    Inventors: Klaus Fischer, Mara Szyrach, Markus Enderle
  • Method For Transmitting Control Information From A Control Device To A Lamp Unit As Well As A Corresponding Illuminating System, Lamp Unit And Control Device
    Publication number: 20120062140
    Abstract: A method is provided for driving at least one lamp unit, which is connected to an AC voltage power supply system. The method comprises modulating a control information item for the operation of the lamp unit onto the supplied AC voltage, decoding of the modulation received on the lamp unit side for reading the control information item and driving the light-emitting device in accordance with the control information item. Provision is made for a shunt to be produced in the line used for transmitting the control information item prior to or at the beginning of the modulation of the control information item. The disclosure also provides a lamp unit and a control device for implementing the method. The disclosure also provides a lighting system.
    Type: Application
    Filed: January 22, 2010
    Publication date: March 15, 2012
    Inventors: Helmut Endres, Klaus Fischer, Friedhelm Holtz, Karl-Heinz Krause, Josef Kreittmayr, Friedhelm Wehlmann
  • Step-up driver with minimal switching frequency
    Patent number: 8134301
    Abstract: The invention relates to an electronic ballast comprising a step-up converter for operating a discharge lamp. The electronic ballast is embodied in such a way as to disconnect a switching element (T1) in the step-up converter when a maximum current value of the current flowing through the switching element is reached. The electronic ballast comprises a holding circuit (HS) which is provided with a time-function element (R27, C23) and is embodied in such a way that it sets the time-function element (R27, C23) when the switching element (TI) is disconnected and reconnects the switching element after a time interval defined by the time-function element (R27, C23).
    Type: Grant
    Filed: February 12, 2007
    Date of Patent: March 13, 2012
    Assignee: OSRAM AG
    Inventors: Klaus Fischer, Josef Kreittmayr
  • PROCESS FOR MANUFACTURING SUBSTRATES PROVIDED WITH A MULTILAYER HAVING THERMAL PROPERTIES,IN PARTICULAR FOR PRODUCING HEATED GLAZING UNITS
    Publication number: 20110268941
    Abstract: A process for manufacturing at least one substrate, especially transparent glass substrates, each provided with a thin-film multilayer comprising an alternation of “n” metallic functional layers especially of functional layers based on silver or a metal alloy containing silver, and of “(n+1)” antireflection coatings, with n being an integer ?3, each antireflection coating comprising at least one antireflection layer, so that each functional layer is positioned between two antireflection coatings, said thin-film multilayer being deposited by a vacuum technique, said multilayer being such that the thicknesses of two functional layers at least are different and the thicknesses of the functional layers have a symmetry within the multilayer relative to the center of the multilayer.
    Type: Application
    Filed: September 30, 2009
    Publication date: November 3, 2011
    Applicant: SAINT-GOBAIN GLASS FRANCE
    Inventors: Klaus Fischer, Robert Drese, Ariane Blanchard, Sebastian Janzyk
  • Electrosurgical instrument
    Patent number: 8038676
    Abstract: The invention relates to an electrosurgical instrument that comprises two branches joined to one another in an articulated manner, which can be actuated to open or close in a manner corresponding to a clamping, spreading or cutting tool. The instrument further comprises electrode parts at distal ends of the branches, which are used for grasping tissue and passing a coagulation current through the tissue for the purpose of coagulating it and which are electrically insulated from one another, as well as current-supply devices to supply the coagulation current to the electrode parts. In addition, on at least at one electrode part, a cutting section designed as a cutting electrode is provided whereby the electrode part comprises the cutting section and a coagulation section.
    Type: Grant
    Filed: April 27, 2005
    Date of Patent: October 18, 2011
    Assignee: ERBE Elektromedizin GmbH
    Inventor: Klaus Fischer
  • Starting clutch, particularly for racing and sports vehicles
    Patent number: 7954618
    Abstract: A starting clutch, particularly for racing and sports vehicles, has clutch plates, of which at least one is non-rotatably coupled with a clutch cage of the starting clutch and at least one is non-rotatably coupled with a clutch hub of the starting clutch. A set of springs composed of at least two diaphragm-spring-type spring elements presses the clutch plates together when the starting clutch is closed and permits a torque transfer from the clutch cage to the clutch hub and vice-versa. Viewed from the clutch plates, the first or second spring element has at least a first elevation on its side facing the respective second or first spring element, which elevation presses against the respective second or first spring element when the starting clutch is closed.
    Type: Grant
    Filed: May 24, 2010
    Date of Patent: June 7, 2011
    Assignee: Bayerische Motoren Werke Aktiengesellshaft
    Inventor: Klaus Fischer
  • Method For Transmitting Control Information From A Control Device To A Lamp Unit As Well As A Corresponding Illuminating System, Lamp Unit And Control Device
    Publication number: 20110101882
    Abstract: A method is provided for driving at least one lamp unit, which is connected to an AC voltage power supply system. The method comprises modulating a control information item for the operation of the lamp unit onto the supplied AC voltage, decoding of the modulation received on the lamp unit side for reading the control information item and driving the light-emitting device in accordance with the control information item. Provision is made for a shunt to be produced in the line used for transmitting the control information item prior to or at the beginning of the modulation of the control information item. The disclosure also provides a lamp unit and a control device for implementing the method. The disclosure also provides a lighting system.
    Type: Application
    Filed: January 22, 2010
    Publication date: May 5, 2011
    Inventors: Helmut Endres, Klaus Fischer, Friedhelm Holtz, Karl-Heinz Krause, Josef Kreittmayr, Friedhelm Wehlmann
  • CRYOSURGICAL INSTRUMENT FOR OBTAINING A TISSUE SAMPLE, METHOD FOR CHILLING A PROBE HEAD OF A CRYOSURGICAL PROBE
    Publication number: 20110071427
    Abstract: A cryosurgical instrument for obtaining a tissue sample with a probe, including the probe including a probe head onto which the tissue sample is frozen and a probe shank for guiding the probe head to the tissue sample, a supply means for supplying a fluid into an expansion chamber configured such that supplied fluid expands therein for cooling the probe head, and a removal means connected to the expansion chamber for removing the expanded fluid therefrom via at least one opening on a distal end of the probe to remove the expanded fluid to an outer region outside the probe. A method for cooling a probe head of a cryosurgical probe including supplying a fluid to an expansion chamber near the probe head, expanding the fluid so that heat energy is withdrawn from the probe head, and removing the expanded fluid in a distal region of the probe.
    Type: Application
    Filed: April 23, 2009
    Publication date: March 24, 2011
    Inventors: Klaus Fischer, Daniel Schäller, Matthias Voigtländer, Mara Szyrach, Irina Sigle, Lars Blobel, Markus Enderle
  • Circuit arrangement for operating a discharge lamp having temperature compensation
    Patent number: 7911148
    Abstract: The invention relates to a circuit arrangement which is used to operate a low pressure discharge lamp (EL), wherein the discharge lamp receives power. Said circuit arrangement is embodied in such a manner that power-determination components (C2a, L2a) of the circuit arrangement are embodied in a temperature-dependent manner such that the power consumption of the lamp is limited when the temperature rises. Capacitors (C2a) and throttles (L2a) can be embodied in a temperature-dependent manner in a control circuit (AS) of the circuit arrangement.
    Type: Grant
    Filed: May 31, 2006
    Date of Patent: March 22, 2011
    Assignee: OSRAM Gesellschaft mit beschraenkter Haftung
    Inventors: Klaus Fischer, Josef Kreittmayr
  • Electronic ballast with phase dimmer detection
    Patent number: 7911154
    Abstract: The invention relates to an electronic ballast comprising a converter which is used to operate a discharge lamp, for example, a low pressure discharge lamp, for selectively operating, in a direct manner, the supply network or a phase section dimmer. Jumps in the supply voltage are decoupled by a differential which is connected between at least one of the network lines and the reference potential of the ballast and transmitted to a control of the ballast, such that the control of the converter can distinguish between the operation on the phase section dimmer and on the network supply.
    Type: Grant
    Filed: March 22, 2006
    Date of Patent: March 22, 2011
    Assignee: Osram Gesellschaft mit Beschraenkter Haftung
    Inventors: Klaus Fischer, Josef Kreittmayr
  • DIELECTRIC-LAYER-COATED SUBSTRATE AND INSTALLATION FOR PRODUCTION THEREOF
    Publication number: 20110056825
    Abstract: The invention relates to a substrate (1), especially a glass substrate, coated with at least one dielectric thin-film layer deposited by sputtering, especially magnetically enhanced sputtering and preferably reactive sputtering in the presence of oxygen and/or nitrogen, with exposure to at least one ion beam (3) coming from an ion source (4), characterized in that said dielectric layer exposed to the ion beam is crystallized.
    Type: Application
    Filed: September 7, 2010
    Publication date: March 10, 2011
    Applicant: SAINT-GOBAIN GLASS FRANCE
    Inventors: Carole BAUBET, Klaus Fischer, Marcus Loergen, Jean-Christophe Giron, Nicolas Nadaud, Eric Mattman, Jean-Paul Rousseau, Alfred Hofrichter, Manfred Jansen
  • Circuit arrangement and method for operating at least one electric lamp
    Patent number: 7888879
    Abstract: A circuit arrangement for operating at least one electric lamp having an inverter has at least one first and one second bridge transistor arranged in series with one another, a first drive circuit for the first bridge transistor; a second drive circuit for the second bridge transistor; the and second drive circuits being designed to drive the first and second bridge transistors to switch alternately completely on and off during normal lamp operation; and at least one protective apparatus; the at least one protective apparatus being designed, in the case of a value for a reference voltage, which is correlated with the voltage across the bridge transistor which has just been switched off, above a predeterminable limit value, to drive the bridge transistor, which has just been completely switched on, such that it is no longer completely switched on. A related method is also described.
    Type: Grant
    Filed: July 6, 2006
    Date of Patent: February 15, 2011
    Assignee: OSRAM Gesellschaft mit beschaenkter Haftung
    Inventor: Klaus Fischer
  • WATER JET SURGICAL INSTRUMENT
    Publication number: 20110028887
    Abstract: A water jet surgical instrument including a supply line for supplying a cutting fluid and a discharge nozzle for forming and discharging a fluid jet, wherein the fluid jet has a predetermined spread angle and/or a predetermined emergence energy. A jet shaping device is arranged relative to the discharge nozzle such that the fluid jet is able to be adjusted by the jet shaping device with regard to the spread angle and/or emergence energy thereof.
    Type: Application
    Filed: March 31, 2009
    Publication date: February 3, 2011
    Inventors: Klaus Fischer, Daniel Schäller, Matthias Voigtländer, Mara Szyrach, Irina Sigle, Lars Blobel, Markus Enderle
  • Light source
    Patent number: 7871183
    Abstract: A light source for an atomizing device, specifically an atom absorption spectrometer comprising one, two, or more lamps, whose ray can be selected by means of at least one two-dimensionally moveable optical selection element, and which can be directed in the direction of atomizing device. Fine-tuning is thereby achieved quickly with little constructive expenditure and with low costs. A very high degree of accuracy is possible from the selector through a rotational and highly adjustable rotation spindle.
    Type: Grant
    Filed: March 24, 2008
    Date of Patent: January 18, 2011
    Assignee: PerkinElmer Singapore Pte. Ltd.
    Inventors: David H. Tracy, Bernhard H. Radziuk, Klaus Fischer