Patents by Inventor Helmut Hummel

Helmut Hummel 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).

  • Publication number: 20220274227
    Abstract: A machine tool (1) is provided, in particular an angle grinder, including a spindle (8) that can be driven about a rotational axis (L), a device (9) being provided which can be fixed to the spindle (8) by a rotary connection. A separate securing device (26) is provided which is operatively connected to the spindle (8), which is arranged on the output side of the device (9), at least in some regions, and which, at least during operation of the machine tool (1), has a smaller outer diameter (28), at least in some regions, with respect to the rotational axis (L) than an outer diameter (14) of the spindle (8).
    Type: Application
    Filed: July 14, 2020
    Publication date: September 1, 2022
    Inventor: Helmut HUMMEL
  • Publication number: 20180011005
    Abstract: The invention relates to an apparatus for the inline trace analysis of a liquid, preferably of an aqueous process solution, comprising: a housing (1); a micro-channel (2) through which the liquid to be examined is allowed to flow and into which light of a light source (3) is coupled; a detector (4) for light emerging from the micro-channel (2); and a user interface (5) for monitoring and/or operating the apparatus. The micro-channel (2), the detector (4) and/or the user interface (5) are arranged in the housing (1) and/or are integrated into the housing (1), and the housing (1) has a connection (6) for feeding the liquid in the micro-channel (2) and a connection (7) for power supply of the apparatus.
    Type: Application
    Filed: January 7, 2016
    Publication date: January 11, 2018
    Inventors: Gerhard Kirschner, Thomas Wisspeintner, Martin Sczepan, Helmut Hummel, Alfred Lechner, Michael Bauhuber
  • Patent number: 8948563
    Abstract: The invention relates to a measuring apparatus comprising an apparatus for forming a liquid optical waveguide having a substrate (1) having an at least partially curved closed microchannel (2) having a low-refractive coating (13), whereby there is formed in the substrate (1) at least one feed line (6) for supplying liquid, and whereby there is provided at least at one end of the closed microchannel (2) an apparatus for coupling light axially into the closed microchannel and/or for coupling light axially out of the closed microchannel (2), further comprising a light source (4), a light detector (5), and a first liquid pump (9) which supplies a sample liquid (7) to the closed microchannel (2) via the at least one feed line (6, 6a).
    Type: Grant
    Filed: October 5, 2010
    Date of Patent: February 3, 2015
    Assignee: Hochscule Regensburg, University of Applied Science
    Inventors: Helmut Hummel, Alfred Lechner
  • Publication number: 20120257193
    Abstract: The invention relates to a measuring apparatus comprising an apparatus for forming a liquid optical waveguide having a substrate (1) having an at least partially curved closed microchannel (2) having a low-refractive coating (13), whereby there is formed in the substrate (1) at least one feed line (6) for supplying liquid, and whereby there is provided at least at one end of the closed microchannel (2) an apparatus for coupling light axially into the closed microchannel and/or for coupling light axially out of the closed microchannel (2), further comprising a light source (4), a light detector (5), and a first liquid pump (9) which supplies a sample liquid (7) to the closed microchannel (2) via the at least one feed line (6, 6a).
    Type: Application
    Filed: October 5, 2010
    Publication date: October 11, 2012
    Applicant: Hochschule Regensburg - University of Applied Sciences
    Inventors: Helmut Hummel, Alfred Lechner
  • Patent number: 7213577
    Abstract: The invention relates to a method for producing a fuel accumulator line and a fuel accumulator line comprising prestressed connection pieces. The connection pieces are mounted onto the fuel accumulator line with a prestress, by crimping, or by a temporal expansion and/or a temporal contraction of the fuel accumulator line. The connection pieces connect a line to the fuel accumulator line. The prestressing of the connection pieces allows pressure to be exerted on the fuel accumulator line, thus increasing the compressive strength.
    Type: Grant
    Filed: May 6, 2004
    Date of Patent: May 8, 2007
    Assignee: Siemens Aktiengesellschaft
    Inventors: Helmut Hummel, Georg Weigl
  • Patent number: 6968484
    Abstract: A method is described for parametrizing an integrated circuit by applying a digital start command signal followed by a parametrization data signal to the supply voltage terminal and/or the output terminal of the integrated circuit. During the parametrization process, the voltage level applied to the supply voltage terminal and/or the output terminal is kept above the normal operating voltage level and detected by a detector device provided in integrated circuit. The integrated circuit includes the supply voltage terminal, a reference potential terminal, and the output terminal, as well as an internal memory which is preferably non-volatile. The adjustment specification for parametrizing the integrated circuit is stored in the memory and activated by the parametrization data signal.
    Type: Grant
    Filed: July 31, 2003
    Date of Patent: November 22, 2005
    Assignee: Micronas GmbH
    Inventor: Ulrich Helmut Hummel
  • Publication number: 20050127205
    Abstract: In a method and a device for the hydro-erosive rounding of an edge of a component, in particular, an edge in a channel of a high-pressure resistant component, a fluid charged with abrasive bodies is run along the edge for rounding and the flow speed in the vicinity of the edge for rounding is increased by means of a body arranged in the fluid flow path. With relation to the method, the flow speed of the fluid (6) is increasingly raised along the course of the body (7) until the edge (5) for rounding is reached by means of the geometry of the body (7) and, with relation to the device, the cross-sectional area of the flow channel (10) continuously declines in the direction of flow (S) of the fluid (6) along the length of the body (7) at least as far as the edge (5).
    Type: Application
    Filed: January 4, 2005
    Publication date: June 16, 2005
    Inventors: Andreas Fath, Helmut Hummel, Christoph Klesse
  • Publication number: 20040206336
    Abstract: The invention relates to a method for producing a fuel accumulator line and a fuel accumulator line comprising prestressed connection pieces. The connection pieces are mounted onto the fuel accumulator line with a prestress, by crimping, or by a temporal expansion and/or a temporal contraction of the fuel accumulator line. The connection pieces connect a line to the fuel accumulator line. The prestressing of the connection pieces allows pressure to be exerted on the fuel accumulator line, thus increasing the compressive strength.
    Type: Application
    Filed: May 6, 2004
    Publication date: October 21, 2004
    Inventors: Helmut Hummel, Georg Weigl
  • Publication number: 20040133829
    Abstract: A method is described for parametrizing an integrated circuit by applying a digital start command signal followed by a parametrization data signal to the supply voltage terminal and/or the output terminal of the integrated circuit. During the parametrization process, the voltage level applied to the supply voltage terminal and/or the output terminal is kept above the normal operating voltage level and detected by a detector device provided in integrated circuit. The integrated circuit includes the supply voltage terminal, a reference potential terminal, and the output terminal, as well as an internal memory which is preferably non-volatile. The adjustment specification for parametrizing the integrated circuit is stored in the memory and activated by the parametrization data signal.
    Type: Application
    Filed: July 31, 2003
    Publication date: July 8, 2004
    Inventor: Ulrich Helmut Hummel
  • Patent number: 6738940
    Abstract: An integrated circuit (IC) includes a first lead, a second lead and a sensor element that provides a sensed signal. The IC also includes a test signal generator that provides a test signal, a signal processing unit, and a switching device that selectively applies the sensed signal or the test signal to the signal processing unit in response to a command signal, wherein the signal processing unit provides processed data. In response to a test command input signal, the IC generates the command signal, wherein when the test input signal is active the command signal is set to command the switching device to input the test signal to the signal processing unit. A check sum calculator receives the processed data and provides a signal indicative of a check sum value on the second lead when the command signal is set to command the switching device to input the test signal to the signal processing unit.
    Type: Grant
    Filed: December 26, 2000
    Date of Patent: May 18, 2004
    Assignee: Micronas GmbH
    Inventors: Ulrich Helmut Hummel, Jonathan Bradford
  • Patent number: 6326778
    Abstract: A method and a sensing device transmit speed information and additional information over a transmission channel. For this purpose, the transmission clock cycle is selected to reflect the speed and is detected by the sensing device. The additional information is transmitted as a modulation of the transmission clock cycle.
    Type: Grant
    Filed: March 16, 1999
    Date of Patent: December 4, 2001
    Assignee: Micronas GmbH
    Inventor: Ulrich Helmut Hummel