Patents by Inventor Gerhard Conzelmann
Gerhard Conzelmann 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: 4742425Abstract: A multiple-cell transistor consists of a parallel connection of individual transistor cells (41, 42) for power distribution. Fuse links (6, 7), which separate the defective transistor cells from the compound in the event of a short circuit, are provided for the purpose of automatically separating defective transistor cells. A voltage-controlled switch (9) is provided for improved separation of the base fuse link (7).Type: GrantFiled: May 5, 1987Date of Patent: May 3, 1988Assignee: Robert Bosch GmbHInventors: Gerhard Conzelmann, Karl Nagel
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Patent number: 4689711Abstract: A monolithically integrated, polarity-reversal protected switching circuit includes, in the output of a switching stage, a symmetrical thyristor instead of an otherwise customary diode. This thyristor is constituted by an npn transistor and a lateral pnp transistor. The control input of the thyristor is controlled by an additional control arrangement in such a manner that the thyristor is switched off at the occurrence of high voltage peaks. In this manner, there is obtained a relatively inexpensive monolithically integrated switching arrangement which is protected against polarity reversal and withstands voltage pulses of up to 150 volts.Type: GrantFiled: November 4, 1985Date of Patent: August 25, 1987Assignee: Robert Bosch GmbHInventors: Gerhard Conzelmann, Karl Nagel
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Patent number: 4519115Abstract: The invention concerns a method of threading in a thread into a texturing nozzle known as such, and an apparatus for implementing the method. The texturing nozzle is brought from a working position into a threading-in position for threading-in, in which position a treatment chamber provided with slots and located upstream from the outlet opening of the texturing nozzle is subject to a vacuum for sucking in a thread brought to a position in front of the inlet opening of the texturing nozzle.Type: GrantFiled: March 21, 1983Date of Patent: May 28, 1985Assignee: Rieter Machine Works, Ltd.Inventors: Peter Gujer, Dieter Guldenfels, Armin Wirz, Hans Knopp, Dieter Herion, Gerhard Conzelmann
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Patent number: 4424614Abstract: A process for introducing one or more threads into a texturizing nozzle, in which the texturizing nozzle, together with the inlet member, is first brought into a position in which the thread is led transversely past and in the immediate vicinity of the texturizing nozzle, the thread is sucked against the nozzle with the orifice of the inlet member enlarged, immediately after being sucked against the texturizing nozzle the thread is cut beyond the nozzle so that the cut end is sucked back into the nozzle, the suction supply required for the sucking-in is replaced by pressurized fluid texturizing medium, and the cross-section of the inlet orifice of the texturizing device is reduced to a value advantageous for steady state operation.Type: GrantFiled: September 23, 1981Date of Patent: January 10, 1984Assignee: BASF Farben & Fasern AGInventors: Wolfgang Martin, Hans Knopp, Dieter Herion, Gerhard Conzelmann, Guenter Leuchtmann, Peter Gujer, Dieter Guldenfels, Armin Wirz
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Patent number: 4416041Abstract: The invention concerns a method of threading in a thread (1) into a texturing nozzle (2) known as such, and an apparatus for implementing the method. The texturing nozzle is brought from a working position (A) into a threading-in position (B) for threading-in, in which position a treatment chamber (13) provided with slots (12) and located upstream from the outlet opening (14) of the texturing nozzle is subject to a vacuum for sucking in a thread brought to a position in front of the inlet opening (44) of the texturing nozzle.The apparatus for implementing the method comprises a duct (19, 32, 32a, 41, 41a), which can be tilted open, for taking up substantially sealingly against the surrounding atmosphere the treatment chamber (13) of the texturing nozzle (2) provided with slots (12), as well as for taking up a suction device (18, 40) sucking the thread (1) through the texturing nozzle (2).Type: GrantFiled: December 11, 1979Date of Patent: November 22, 1983Assignee: Rieter Deutschland GmbHInventors: Peter Gujer, Dieter Guldenfels, Armin Wirz, Hans Knopp, Dieter Herion, Gerhard Conzelmann
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Patent number: 4356604Abstract: A process for introducing one or more threads into a texturizing nozzle, in which the texturizing nozzle, together with the inlet member, is first brought into a position in which the thread is led transversely past and in the immediate vicinity of the texturizing nozzle, the thread is sucked against the nozzle with the orifice of the inlet member enlarged, immediately after being sucked against the texturizing nozzle the thread is cut beyond the nozzle so that the cut end is sucked back into the nozzle, the suction supply required for the sucking-in is replaced by pressurized fluid texturizing medium, and the cross-section of the inlet orifice of the texturizing device is reduced to a value advantageous for steady state operation.Type: GrantFiled: January 30, 1981Date of Patent: November 2, 1982Assignee: BASF Farben & Fasern AGInventors: Wolfgang Martin, Hans Knopp, Dieter Herion, Gerhard Conzelmann, Guenter Leuchtmann, Peter Gujer, Dieter Guldenfels, Armin Wirz
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Patent number: 4295253Abstract: A process for texturizing bundles of filaments of synthetic high molecular weight materials at high speed, wherein the filament bundle is passed through a feed nozzle and is then brought into contact with a hot gaseous medium which is undergoing a vortical motion and has acquired a vortex angle of from 10.degree. to 70.degree. as a result of passage through a vortex chamber, is then heated by the fluid medium in a downstream tubular chamber and is subsequently fed to an expansion stage to produce the crimp, and apparatus for carrying out this process.Type: GrantFiled: September 27, 1979Date of Patent: October 20, 1981Assignee: BASF AktiengesellschaftInventors: Hans Knopp, Dieter Herion, Gerhard Conzelmann, Heinz Gehrig
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Patent number: 4280260Abstract: A process for introducing one or more threads into a texturizing nozzle, in which the texturizing nozzle, together with the inlet member, is first brought into a position in which the thread is led transversely past and in the immediate vicinity of the texturizing nozzle, the thread is sucked against the nozzle with the orifice of the inlet member enlarged, immediately after being sucked against the texturizing nozzle the thread is cut beyond the nozzle so that the cut end is sucked back into the nozzle, the suction supply required for the sucking-in is replaced by pressurized fluid texturizing medium, and the cross-section of the inlet orifice of the texturizing device is reduced to a value advantageous for steady state operation.Type: GrantFiled: March 29, 1979Date of Patent: July 28, 1981Assignee: BASF AktiengesellschaftInventors: Wolfgang Martin, Hans Knopp, Dieter Herion, Gerhard Conzelmann, Guenter Leuchtmann, Peter Gujer, Dieter Guldenfels, Armin Wirz
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Patent number: 4233556Abstract: To improve the regulating response of an automotive-type, solid-state voltage regulator and render it essentially immune to ripple while additionally permitting complete integration of the entire voltage regulator without external discrete filter capacitors, a difference amplifier has the output voltage of the on-board vehicle network, for example from an alternator, applied thereto for comparison with a reference, the difference amplifier, respectively, controlling a capacitor charge current supply and a discharge current drain circuit, both connected to a small capacitor in the order of, for example, only 30 pF which, hence, can be integrated, the voltage across the capacitor being sensed in a high-low window or range-type discriminator which has a dual-state output to control conduction or non-conduction of a transistor in series with the field of the alternator in dependence upon whether the voltage across the capacitor, as it is being charged or drained, is above an upper threshold or below a lower thresType: GrantFiled: August 23, 1978Date of Patent: November 11, 1980Assignee: Robert Bosch GmbHInventors: Karl Nagel, Gerhard Conzelmann
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Patent number: 4054828Abstract: To provide for uniformity of power dissipation in the components of the switching system, regardless of the duty cycle upon repetitive, cyclical operation, the coupling resistors connected to the driver transistor and to the power transistor are so dimensioned relative to each other, and to the internal resistances of the driver transistor and the power transistor of the system that, in an initial approximation, the dissipation losses arising in the system are independent of the duty cycle of the switching transistor; this is obtained by selecting the sum of the resistance value of the collector resistor for the driver transistor and the base transistor of the power transistor such that (a) when the driver transistor is blocked, current flowing to the base of the power transistor holds the power transistor in full, saturated conduction and (b) the value of the collector resistor for the driver transistor is so selected that, when the driver transistor is conductive, the sum of the dissipated power in the collType: GrantFiled: January 8, 1975Date of Patent: October 18, 1977Assignee: Robert Bosch GmbHInventors: Gerhard Conzelmann, Karl Nagel, Helmut Keller
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Patent number: 4054898Abstract: A controlled main switch, typically a semiconductor switch, is connected in parallel to the load. In accordance with the invention, an auxiliary switch, typically also a semiconductor switch such as a switching transistor is directly connected across the terminals of the load, and with an impedance, for example a resistance, diode, or Zener diode to the main switch, and controlled to switch in synchronism with the main switch, so that the residual voltage across the load due to inherent voltage drop across the terminals of the switch becomes a minimum. Integrated technology may be used, combining preamplifiers and distribution networks in one monolithic chip.Type: GrantFiled: September 20, 1976Date of Patent: October 18, 1977Assignee: Robert Bosch GmbHInventors: Klaus Streit, Karl Staiger, Gerhard Conzelmann, Hartmut Seiler, Karl Nagel
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Patent number: 4038677Abstract: To detect defective elements in a composite semiconductor unit, such as a plurality of transistors, diodes, or the like, connected together to provide desired output levels, the elements are arranged in the unit, for example by providing coupling resistors, or melt positions in the connections to the respective units so that defective elements in the unit can be recognized and isolated from the remaining, non-defective elements in the unit, so that, overall, a semiconductor unit results which is operative and from which defective sub-elements have been, electrically, removed.Type: GrantFiled: February 7, 1975Date of Patent: July 26, 1977Assignee: Robert Bosch G.m.b.H.Inventors: Karl Nagel, Gerhard Conzelmann, Horst Gschwendtner
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Patent number: 4004160Abstract: A controlled main switch, typically a semiconductor switch, is connected in parallel to the load. In accordance with the invention, an auxiliary switch, typically also a semiconductor switch such as a switching transistor is directly connected across the terminals of the load, and with an impedance, for example a resistance, diode, or Zener diode to the main switch, and controlled to switch in synchronism with the main switch, so that the residual voltage across the load due to inherent voltage drop across the terminals of the switch becomes a minimum. Integrated technology may be used, combining preamplifiers and distribution networks in one monolithic chip.Type: GrantFiled: September 12, 1974Date of Patent: January 18, 1977Assignee: Robert Bosch G.m.b.H.Inventors: Klaus Streit, Karl Staiger, Gerhard Conzelmann, Hartmut Seiler, Karl Nagel