Patents Represented by Attorney, Agent or Law Firm Herbert L. Lerner
  • Method for operating a once-through steam generator and once-through steam generator for carrying out the method
    Patent number: 6250257
    Abstract: A once-through steam generator having a combustion chamber. A containing wall of the combustion chamber is formed from vertically disposed evaporator tubes welded to one another in a gas-tight manner. The combustion chamber is to be capable of being used safely and reliably in a pressure range of between about 200 bar and 221 bar, while, moreover, a particularly high efficiency is to be achieved. For this purpose, according to the invention, a mass flow density m of a flow medium has the following relationship m=200+8.42 ·1012·q3[d/(d−2s)]s2·Tmax−5 in the evaporator tubes. In this case, q is the heat flow density acting on the evaporator tubes, Tmax is an admissible maximum temperature characteristic of the tube material, d is the outside diameter of the evaporator tubes and s is the wall thickness of the evaporator tubes.
    Type: Grant
    Filed: May 6, 1999
    Date of Patent: June 26, 2001
    Assignee: Siemens Aktiengesellschaft
    Inventors: Wolfgang Kastner, Wolfgang Köhler, Eberhard Wittchow
  • Scanning device
    Patent number: 6250141
    Abstract: A scanning device for semiconductor wafers with which rapid and dependable scanning is permitted. The invention is characterized by a base plate with a guiding pin protruding from it for the manual guidance of a depositing plate which is displaceable on the latter. The depositing plate is intended to receive a semiconductor wafer and is provided on an underside with meandering guiding channels for guiding by the guiding pin. A liquid drop is kept on a surface of the semiconductor wafer by a scanning tube and collects metal and dopant traces from the semiconductor wafer. The liquid drop can then be analyzed for determining a purity of the surface of the semiconductor wafer.
    Type: Grant
    Filed: November 9, 1999
    Date of Patent: June 26, 2001
    Assignee: Infineon Technologies AG
    Inventors: Stefan Geyer, Michael Horn, Rüdiger Hunger
  • Method for controlling an internal combustion engine equipped with a device for recycling exhaust gases
    Patent number: 6250291
    Abstract: Process for controlling an internal combustion engine equipped with an exhaust gas recirculation device (5) comprising a recirculation valve (51) and a device for regulating an air/fuel mixture injected into an inlet circuit as a function of the signal (LAM_AV) of an oxygen probe (41) placed in the exhaust circuit (4), characterized in that the controls of the valve (EGR_CTRL) are synchronized with at least one transition of a correction (LAM_COR) of the richness of the mixture in order to reduce the transient pollution peaks generated by the operating of the exhaust gas recirculation valve (51).
    Type: Grant
    Filed: August 10, 1999
    Date of Patent: June 26, 2001
    Assignee: Siemens Automotive S.A.
    Inventors: Jean-Jacques Kerjean, Françoise Rembaud, Dominique Salafia
  • Fuel injection valve for internal combustion engines
    Patent number: 6250563
    Abstract: An actuator is operatively connected to a closing member via a tappet. The closing member is introduced in a valve chamber and forms, with a conically tapering valve seat as part of a servovalve, a seal resistant to high pressure. The cross section of the closing member is configured to be mushroom-shaped, a closing head being in the form of a part-sphere and having a central flattening, with the result that the tappet has an enlarged bearing surface. A stem of the closing member is surrounded by a valve spring. The closing member is preferably shaped out of a solid sphere.
    Type: Grant
    Filed: January 28, 2000
    Date of Patent: June 26, 2001
    Assignee: Siemens Aktiengesellschaft
    Inventors: Wilhelm Frank, Gerd Schmutzler, Joachim Wagner, Hartmut Gross
  • Cylinder assembly for a folding apparatus of a rotary printing press
    Patent number: 6250622
    Abstract: The present invention is related to a paper conducting cylinder in a folder which is assigned to a rotary printing press such as a rotary newspaper printing press. A plurality of cylinder's surface sections (19) is mounted about the circumference of said cylinder (8). Each of said surface sections (19) being of layered structure comprises a compressible material (24) adhesively attached thereto. Said surface sections (19) are removably secured to mounting surfaces (29) of said cylinder (8), preferably on its side walls.
    Type: Grant
    Filed: May 20, 1999
    Date of Patent: June 26, 2001
    Assignee: Heidelberger Druckmaschinen Aktiengesellschaft
    Inventors: Gary Frank Fowler, Wayne Harvey Garland, Michael Alexander Novick
  • Method for transferring an end of a material web
    Patent number: 6251053
    Abstract: A folder for a rotary printing press, having at least one copy-guiding cylinder and, on the one copy-guiding cylinder, gripping devices for gripping one end of a copy, includes a cutting cylinder cooperating with the one copy-guiding cylinder, and copy-guiding devices provided on the cutting cylinder, the gripping devices of the one copy-guiding cylinder and the copy-guiding devices of the cutting cylinder being retractably and extensibly movable substantially parallel to normals to axes of rotation of the one copy-guiding cylinder and the cutting cylinder; and a method of operating the folder.
    Type: Grant
    Filed: October 17, 2000
    Date of Patent: June 26, 2001
    Assignee: Heidelberger Druckmaschinen AG
    Inventors: Serge Lanvin, Eddie Smelten, Thierry Vauchelle
  • Optical transmitting device
    Patent number: 6252893
    Abstract: At least one monitor laser having an associated monitor diode. The monitor diode is connected to an electronic circuit that controls the monitor laser, while correspondingly driving the semiconductor lasers in parallel, in such a way that an electrical signal from the monitor diode constantly has a preset value. This value and a nominal signal corresponding to the nominal value of the optical power of the monitor laser are used to form a correction variable. If a current flowing through a semiconductor laser exceeds the current through the monitor laser, weighted by the correction variable, then the power of the semiconductor laser is reduced. In this manner, the transmitting device is of simple construction and at the same time avoids unacceptably high powers in the semiconductor lasers.
    Type: Grant
    Filed: December 7, 1998
    Date of Patent: June 26, 2001
    Assignee: Siemens Aktiengesellschaft
    Inventor: Herwig Stange
  • Ladder support
    Patent number: 6250424
    Abstract: A ladder support, in particular for corners of buildings, includes an angle bracket fitted directly or indirectly to the top end of a ladder by support arms of variable length. The angle bracket has spacers. Rollers are placed individually or in pairs at the free ends of the spacers. The rollers are variable in length and articulation. The support arms are each connected to the side rail of the ladder by a detachable clamping device. The angle bracket can be attached to a bearing bar, with the bearing bar attached to the support arms.
    Type: Grant
    Filed: September 20, 1999
    Date of Patent: June 26, 2001
    Inventor: Horst Laug
  • Method for recording a digitized audio signal, and telephone answering machine
    Patent number: 6252945
    Abstract: A method for recording a digitized audio signal and a telephone answering machine in which this method can be advantageously employed. A digitized audio signal is written in during a first time segment, and the written-in data are then stored in memory in a storage medium for digital data. After the first time segment, the writing in of the digital input signal is continued. The data now written in are compressed by a predetermined compression algorithm in accordance with a predetermined data compression rate. Finally, the thus-compressed data are stored in the storage medium for digital data. With the method, especially economical utilization of a limited memory storage volume is possible.
    Type: Grant
    Filed: September 29, 1998
    Date of Patent: June 26, 2001
    Assignee: Siemens Aktiengesellschaft
    Inventors: Michael Hermann, Achim Degenhardt
  • Chemically amplified resist
    Patent number: 6251558
    Abstract: A chemically amplified resist contains the following components: a polymer with carboxylic acid anhydride groups and tert-butylester, tert-butoxycarbonyloxy, tetrahydrofuranyl, or tetrahydropyranyl groups; a photoreactive compound which, when exposed or electron-irradiated, releases a sulfonic acid having a pKa value>0.5 (acid former); a compound that can enter into a reversible chemical reaction with the sulfonic acid (buffer compound); and a solvent.
    Type: Grant
    Filed: April 23, 1998
    Date of Patent: June 26, 2001
    Assignee: Siemens Aktiengesellschaft
    Inventors: Klaus Elian, Rainer Leuschner, Ewald Guenther
  • Apparatus for compensating for signal transit time differences of digital transmission devices
    Patent number: 6252890
    Abstract: An apparatus transmits digital signals between a higher-ranking station and one or more subordinate stations through transmission devices. A signal transit time is automatically measured in the transmission devices, differences in transit time are automatically compensated for and useful signals in the various subordinate stations are automatically synchronized with one another.
    Type: Grant
    Filed: June 24, 1997
    Date of Patent: June 26, 2001
    Assignee: Siemens Aktiengesellschaft
    Inventors: Michael Alger-Meunier, Yousif Ammar, Dieter Brueckmann, Gerald Hoefer
  • Method and adapter device for switching switched connections between time-division-multiplex-oriented components of a communications network via an ATM communications network
    Patent number: 6252870
    Abstract: In response to a connection setup initiated by a time-division-multiplex-oriented component, an ATM-communications-network-specific destination information item is derived from a specified signaling information item, and an ATM switched connection is automatically set up in the ATM communications network. After a transparent transfer of signaling and useful information via the switched connection that has been set up, the ATM switched connection in question is released. This provides more efficient use of the ATM communications network.
    Type: Grant
    Filed: January 31, 2000
    Date of Patent: June 26, 2001
    Assignee: Siemens Aktiengesellschaft
    Inventors: Wolfgang Fraas, Klaus Hünlich, Bernhard Petri
  • Electrooptical coupling component
    Patent number: 6250820
    Abstract: A coupling component includes a first substrate with a first alignment device and a plurality of optical waveguides located in one plane. The first substrate is a molded synthetic material body. The optical waveguides have coupling-side end surfaces causing a beam deflection onto optically active surfaces of a multichannel electrooptical converter. A second substrate has a second alignment device tuned or matched to the first alignment device of the first substrate. The converter is positioned on the second substrate independently of the optical waveguides and precisely with respect to the second alignment device. The alignment devices are formed by corresponding oblique surfaces on both substrates. The oblique surfaces in one dimension extend parallel to the longitudinal axes of the optical waveguides and are located in planes which intersect the plane of the optical waveguides.
    Type: Grant
    Filed: August 30, 1999
    Date of Patent: June 26, 2001
    Assignee: Infineon Technologies AG
    Inventors: Lutz Melchior, Volker Plickert
  • Method for fabricating a field effect-controlled semiconductor component
    Patent number: 6248620
    Abstract: A method for fabricating field effect-controlled semiconductor components, such as e.g. but not exclusively MIS power transistors. The field effect-controllable semiconductor component has a semiconductor substrate of a first conductivity type and a gate insulator layer on the surface of the semiconductor substrate. A well of a second conductivity type is produced in the semiconductor substrate by implanting first impurity atoms. A semiconductor layer having a first predetermined thickness is produced on the gate insulator layer prior to the production of the well. The semiconductor layer is reduced in a predtdermined region to obtain a residual layer having a second predetermined thickness, such that the semiconductor layer acts as an implantation barrier outside the predetermined region when the well is produced.
    Type: Grant
    Filed: January 24, 2000
    Date of Patent: June 19, 2001
    Assignee: Infineon Technologies AG
    Inventors: Helmut Strack, Helmut Gassel, Joost Larik
  • Method and device for removing oxidic noxious substances in an oxygen-containing exhaust gas and engine which is operated therewith
    Patent number: 6247303
    Abstract: To clean the exhaust gas of internal-combustion engines or other machines which are operated with fossil fuel, it is proposed to firstly pretreat the exhaust gas in a non-thermal normal-pressure gas discharge and subsequently allow a selective catalytic reduction of oxidic noxious substances to take place with the addition of a suitable reduction substance, or to allow a selective catalytic decomposition to take place. The device for removing the oxidic noxious substances is characterized by a series circuit of at least one module with a gas discharge section and at least one module with a catalytic-converter section, and is suitable in particular for use in a diesel engine.
    Type: Grant
    Filed: November 16, 1999
    Date of Patent: June 19, 2001
    Assignee: Siemens Aktiengesellschaft
    Inventors: Stefan Bröer, Thomas Hammer, Frank Witzel
  • Printing press having motor with an external rotor
    Patent number: 6247407
    Abstract: A printing press drive system includes at least one drive having a motor with an external rotor equipped with permanent magnets, the one drive being assigned to at least one cylinder of the printing press for driving the cylinder, and with a stator provided with windings and firmly fixed to the side panel of the printing press, at least part of the drive system being implemented via a gear train, and the rotor having a gear rim at a perimeter thereof.
    Type: Grant
    Filed: August 2, 1999
    Date of Patent: June 19, 2001
    Assignee: Heidelberger Druckmaschinen AG
    Inventors: Klaus Hartmann, Michael Krüger, Bernhard Wagensommer
  • Holding configuration and method for producing a holding configuration for at least one sheathed optical fiber conductor
    Patent number: 6249637
    Abstract: A holding configuration and a method for producing a holding configuration for at least one sheathed optical fiber conductor include a holding body having a through-channel with first and second sections and an outlet opening. The optical fiber conductor is fixed in a fixing compound in the first section and emerges from the holding body through the outlet opening with radial freedom of movement and free of fixing compound. The through-channel expands from the first section to the second section having a cross section which is dimensioned in such a way that fixing compound in the second section remains essentially free of capillary force. A rim of the outlet opening which comes into contact with the optical fiber conductor is rounded.
    Type: Grant
    Filed: April 27, 1998
    Date of Patent: June 19, 2001
    Assignee: Infineon Technologies AG
    Inventor: Hans-Dieter Weigel
  • Gas and steam-turbine plant and method of operating the plant
    Patent number: 6244035
    Abstract: A gas and steam-turbine plant which constructed for an especially high plant efficiency includes a heat-recovery steam generator that is connected downstream of a gas turbine on the flue-gas side and has heating areas which are connected in a water/steam circuit of a steam turbine. A condenser connected downstream of the steam turbine on the steam side can be cooled by intake air to be fed to the gas turbine. A method of operating such a gas and steam-turbine plant is also provided.
    Type: Grant
    Filed: April 17, 2000
    Date of Patent: June 12, 2001
    Assignee: Siemens Aktiengesellschaft
    Inventor: Martin Krill
  • Method for fabricating a semiconductor structure
    Patent number: 6245640
    Abstract: An antireflection layer, preferably a dielectric antireflection layer, is applied by PECVD to a hard mask layer which is composed of doped silicon oxide, with no interruption of the vacuum. The silicon oxide layer is then patterned to form a hard mask and, by way of example, a deep trench etching is performed. The hard mask is removed using an HF/H2SO4 mixture or using an HF/ethylene glycol (EG) mixture at a high etching rate. If the HF/EG mixture is used, an intermediate layer that may be disposed underneath can simultaneously be etched back by a predetermined amount. The integration of two wet etching steps constitutes a major simplification compared with the previous wet etching methods in two different installations.
    Type: Grant
    Filed: September 27, 1999
    Date of Patent: June 12, 2001
    Assignee: Siemens Aktiengesellschaft
    Inventors: Wilhelm Claussen, Barbara Lorenz, Klaus Penner, Mirko Vogt, Hans-Peter Sperlich
  • Method and circuit configuration for the transmission of message units in message streams of different priority
    Patent number: 6246691
    Abstract: A method and a circuit configuration for the transmission of message units in message streams of different priority include passing the message units which are respectively associated with the message streams through a queue that is specific to the message stream. The queues are combined to form groups to ensure a throughput guarantee for the message streams in addition to observing the priorities. At least two of the groups in each case are combined to form a partner group. The groups which belong to a partner group are controlled in such a manner that, in the case where no message unit can currently be transmitted from one of the queue groups, the transmission capability is transferred from the relevant queue group to one of the remaining groups in the respective partner group.
    Type: Grant
    Filed: February 29, 2000
    Date of Patent: June 12, 2001
    Assignee: Siemens Aktiengesellschaft
    Inventors: Uwe Briem, Eugen Wallmeier