Patents by Inventor Stefan Hertel

Stefan Hertel 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: 20220274296
    Abstract: A device and a method for loading prefabricated parts into a molding tool of a press for the production of molded parts, in particular for the production of elastomer molded parts. For this purpose, the device comprises a plate-like carrier element with a top and a bottom intended for attachment on or to the press and a holding device for accommodating at least one interchangeable platen equipped with the parts. The holding unit is arranged on the supporting element at a clear distance from its bottom and the interchangeable platen comprises a plurality of passage openings to accommodate the parts. Furthermore, the device comprises a platen with pins which are arranged between the bottom of the supporting element and the holding unit, wherein the pins align with the passage openings.
    Type: Application
    Filed: March 1, 2022
    Publication date: September 1, 2022
    Applicant: Wickert Maschinenbau GmbH
    Inventors: Florian SCHRAMM, Stefan HERTEL
  • Patent number: 9983597
    Abstract: Method and device for metering a medium from at least one storage tank by a metering device, which has a piston pump, which defines a working chamber with a cylinder and a piston, wherein in a first method step a determined filling quantity of a medium is conveyed via an inlet valve into the working chamber and the determined filling quantity is greater than the quantity to be metered and, in a second method step, the piston reduces the working chamber in size enough that only the quantity to be metered remains, wherein the excess medium flows out of the working chamber, wherein the excess medium flows via the inlet valve back into a ring line, which is connected in a medium-conducting manner to the storage tank and is arranged outside the working chamber.
    Type: Grant
    Filed: July 28, 2016
    Date of Patent: May 29, 2018
    Assignee: ZEPPELIN SYSTEMS GMBH
    Inventor: Stefan Hertel
  • Patent number: 9594382
    Abstract: Method and device for metering a medium from at least one storage tank by a metering device, which has a piston pump, which defines a working chamber with a cylinder and a piston, wherein in a first method step a determined filling quantity of a medium is conveyed via an inlet valve into the working chamber and the determined filling quantity is greater than the quantity to be metered and, in a second method step, the piston reduces the working chamber in size enough that only the quantity to be metered remains, wherein the excess medium flows out of the working chamber, wherein the excess medium flows via the inlet valve back into a ring line, which is connected in a medium-conducting manner to the storage tank and is arranged outside the working chamber.
    Type: Grant
    Filed: October 31, 2014
    Date of Patent: March 14, 2017
    Assignee: ZEPPELIN SYSTEMS GMBH
    Inventor: Stefan Hertel
  • Publication number: 20160333868
    Abstract: Method and device for metering a medium from at least one storage tank by a metering device, which has a piston pump, which defines a working chamber with a cylinder and a piston, wherein in a first method step a determined filling quantity of a medium is conveyed via an inlet valve into the working chamber and the determined filling quantity is greater than the quantity to be metered and, in a second method step, the piston reduces the working chamber in size enough that only the quantity to be metered remains, wherein the excess medium flows out of the working chamber, wherein the excess medium flows via the inlet valve back into a ring line, which is connected in a medium-conducting manner to the storage tank and is arranged outside the working chamber.
    Type: Application
    Filed: July 28, 2016
    Publication date: November 17, 2016
    Inventor: Stefan HERTEL
  • Patent number: 9269774
    Abstract: An electronic device (1) includes a semiconductor substrate (3) having a front surface (7), a first electrode (8) and a second electrode (9) disposed on the front surface (7) of the substrate (3), wherein the first electrode (8) and the second electrode (9) each have at least one epitaxial graphene monolayer (10). The at least one epitaxial graphene monolayer (10) of the first electrode (8) forms an ohmic contact with the substrate (3) and the at least one epitaxial graphene monolayer (10) of the second electrode (9) forms a Schottky barrier with the substrate (3).
    Type: Grant
    Filed: June 18, 2012
    Date of Patent: February 23, 2016
    Assignee: Friedrich-Alexander-Universität Erlangen-Nürnberg
    Inventors: Heiko B. Weber, Michael Krieger, Stefan Hertel, Florian Krach, Johannes Jobst, Daniel Waldmann
  • Patent number: 9263526
    Abstract: A semiconductor component (1, 20, 30) comprising a semiconductor substrate (3) composed of silicon carbide and comprising separate electrodes (4, 5) applied thereto, said electrodes each comprising at least one monolayer of epitaxial graphene (11) on silicon carbide, in such a way that a current channel is formed between the electrodes (4, 5) through the semiconductor substrate (3).
    Type: Grant
    Filed: March 29, 2012
    Date of Patent: February 16, 2016
    Assignee: Friedrich-Alexander-Universität Erlangen-Nürnberg
    Inventors: Heiko B. Weber, Michael Krieger, Stefan Hertel, Florian Krach, Johannes Jobst, Daniel Waldmann
  • Publication number: 20150114480
    Abstract: Method and device for metering a medium from at least one storage tank by a metering device, which has a piston pump, which defines a working chamber with a cylinder and a piston, wherein in a first method step a determined filling quantity of a medium is conveyed via an inlet valve into the working chamber and the determined filling quantity is greater than the quantity to be metered and, in a second method step, the piston reduces the working chamber in size enough that only the quantity to be metered remains, wherein the excess medium flows out of the working chamber, wherein the excess medium flows via the inlet valve back into a ring line, which is connected in a medium-conducting manner to the storage tank and is arranged outside the working chamber.
    Type: Application
    Filed: October 31, 2014
    Publication date: April 30, 2015
    Inventor: Stefan HERTEL
  • Publication number: 20150060881
    Abstract: A semiconductor component (1, 20, 30) comprising a semiconductor substrate (3) composed of silicon carbide and comprising separate electrodes (4, 5) applied thereto, said electrodes each comprising at least one monolayer of epitaxial graphene (11) on silicon carbide, in such a way that a current channel is formed between the electrodes (4, 5) through the semiconductor substrate (3).
    Type: Application
    Filed: March 29, 2012
    Publication date: March 5, 2015
    Applicant: FRIEDRICH-ALEXANDER-UNIVERSITAT ERLANGEN- NURNBERG
    Inventors: Heiko B. Weber, Michael Krieger, Stefan Hertel, Florian Krach, Johannes Jobst, Daniel Waldmann
  • Publication number: 20140225066
    Abstract: An electronic device (1) includes a semiconductor substrate (3) having a front surface (7), a first electrode (8) and a second electrode (9) disposed on the front surface (7) of the substrate (3), wherein the first electrode (8) and the second electrode (9) each have at least one epitaxial graphene monolayer (10). The at least one epitaxial graphene monolayer (10) of the first electrode (8) forms an ohmic contact with the substrate (3) and the at least one epitaxial graphene monolayer (10) of the second electrode (9) forms a Schottky barrier with the substrate (3).
    Type: Application
    Filed: June 18, 2012
    Publication date: August 14, 2014
    Applicant: FRIEDRICH-ALEXANDER-UNIVERSITÄT ERLANGEN-NÜRNBERG
    Inventors: Heiko B. Weber, Michael Krieger, Stefan Hertel, Florian Krach, Johannes Jobst, Daniel Waldmann
  • Publication number: 20060106641
    Abstract: A mobile monitoring and communication system integrates communication services (text, voice, video, and data) with medical information (e.g., patient medical record, patient demographics, reason for procedure, workflow information, etc.) within a radiology department, for example. A medical information system for use with portable processing devices involves a portable processing device including a communication processor for receiving messages from one or more different healthcare workers. An individual message identifies, a task for performance by a particular healthcare worker for a patient, patient and task associated context information and a priority level of the task. A user interface provides data representing at least one display image for display to a user and comprising an overview of tasks of the different healthcare workers including the task for performance by the particular healthcare worker.
    Type: Application
    Filed: April 26, 2005
    Publication date: May 18, 2006
    Inventors: Ernst Bartsch, Brian DelMonego, Betty Fink, Gary Grzywacz, Stefan Hertel, Susanne Laumann, James Pressler, Ramesh Ramanujam, Donald Taylor, Arnold Teres