Patents by Inventor Oliver Schaefer

Oliver Schaefer 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).

  • Patent number: 10605853
    Abstract: A method for insulation fault location in a branched, ungrounded power supply system includes determining an insulation fault position being carried out in combination with evaluating information for identifying a faulty cable outlet according to the method of time-domain reflectometry. Furthermore, the invention relates to a method for insulation fault identification in a branched power supply system and for status monitoring of the branched power supply system, an image of all reflection positions on the power supply system being carried out based on a method of time-domain reflectometry. Moreover, the invention relates to a device for insulation fault location in a branched, ungrounded power supply system having the function units insulation fault test apparatus and insulation fault evaluation device having a measuring current transformer, the device comprising a time-domain reflectometer having a controller so as to implement the method according to the invention.
    Type: Grant
    Filed: December 16, 2016
    Date of Patent: March 31, 2020
    Assignee: BENDER GMBH & CO. KG
    Inventors: Winfried Moell, Eckhard Broeckmann, Oliver Schaefer, Torsten Mager
  • Patent number: 10598720
    Abstract: The invention relates to a method for insulation fault location as well as to an insulation fault location system for an ungrounded power supply system. The main idea of the present invention rests upon the idea that while preserving a predetermined maximally admissible test current amplitude, a test current pulse duration of a test current is adaptively set such that all interfering values are eliminated in a captured differential current, in particular the leakage currents arising in consequence of large supply leakage capacitances. Should a test of the value of the final value of the differential current reveal that a test current threshold value has been exceeded, this exceedance can be seen as an indicator that the respective conductor section is therefore in the fault circuit.
    Type: Grant
    Filed: June 7, 2018
    Date of Patent: March 24, 2020
    Assignee: BENDER GMBH & CO. KG
    Inventors: Oliver Schaefer, Helmut Becker, Carsten Hartmann
  • Patent number: 10598718
    Abstract: The invention relates to a method for insulation fault location in an IT power supply system, comprising the process steps: feeding of a test current, detecting of a test current portion in a branch of the IT power supply system and evaluating the detected test current portion. Furthermore, the invention relates to an insulation fault location for an IT power supply system having a test current generator for supplying a test current, having a test current sensor for detecting a test current portion in a branch of an IT power supply system and having an analyzing device for evaluating the detected test current portion. According to the invention, the insulation fault location system comprises a computing unit for adaptively determining a test current parameter of the test current depending on an electric system parameter of the IT power supply system.
    Type: Grant
    Filed: August 26, 2016
    Date of Patent: March 24, 2020
    Assignee: BENDER GMBH & CO. KG
    Inventors: Dieter Hackl, Oliver Schaefer
  • Patent number: 10554933
    Abstract: A reverse vending machine has an insertion area for inserting an object into the inside of the reverse vending machine, a transport unit for transporting the object in a transport area along a transport axis and an arrangement of cameras for capturing images of the object from several capturing directions. The image capturing direction of each camera is directed toward the transport area. Further, the cameras are arranged outside the transport area and not below the transport area.
    Type: Grant
    Filed: December 8, 2015
    Date of Patent: February 4, 2020
    Assignee: Wincor Nixdorf International GmbH
    Inventors: Guenter Baitz, Wolfgang Malke, Uwe Krueger, Oliver Schaefer
  • Patent number: 10546198
    Abstract: A method for computer-aided recognition of a transport container being empty is provided. The method includes capturing image data of a region of the transport container; determining a contour pattern, which represents the transport container, using the image data; determining a deviation variable, which represents a deviation of the contour pattern from at least one reference pattern, wherein the at least one reference pattern represents an empty transport container; and outputting a signal if the deviation variable satisfies a predefined criterion.
    Type: Grant
    Filed: February 16, 2017
    Date of Patent: January 28, 2020
    Assignee: Wincor Nixdorf International, GmbH
    Inventors: Martin Sommer, Daniel Kieneck, Oliver Schaefer
  • Publication number: 20200025813
    Abstract: A method and device for determining a division of a total insulation resistance and of a total system leakage capacitance in an ungrounded power supply system. The basic idea is to determine how the total insulation resistance is divided into partial insulation resistances and how the total system leakage capacitance is divided into partial system leakage capacitances between the active conductors of the ungrounded power supply system from displacement voltages measured between each of the active conductors of the ungrounded power supply system based on values determined in advance for the total insulation resistance and for the total system leakage capacitance of the ungrounded power supply system. By evaluating the displacement voltages in terms of their changes in amplitude, their frequency and their phasing, conclusions can be drawn as to the division of the total insulation resistance and of the total system leakage capacitance between the individual active conductors.
    Type: Application
    Filed: July 15, 2019
    Publication date: January 23, 2020
    Inventors: Dieter Hackl, Oliver Schaefer, Pascal Becker, Karl Schepp
  • Patent number: 10537189
    Abstract: A reception system for receiving objects comprises at least one reception device for receiving objects, a conveyor device, which has at least one conveyor belt section for conveying objects in a conveyance direction in the at least one reception device, and a sensor device, which is arranged on the at least one reception device, for detecting objects in the at least one reception device. It is provided in this case that the sensor device is designed to emit sensor signals along different signal paths over the reception device, to conclude a fill level of the reception device on the basis of an interaction of at least one of the sensor signals with objects conveyed into the reception device. In this manner, a reception system for receiving objects is provided, which enables further automation, in particular in the conveyance of objects into a reception device.
    Type: Grant
    Filed: March 20, 2018
    Date of Patent: January 21, 2020
    Assignee: Wincor Nixdorf International, GmbH
    Inventors: Oliver Schaefer, Guenter Baitz, Felix Neubert
  • Publication number: 20190330471
    Abstract: The invention relates to compositions containing dye, containing (A) at least one dye, (B) at least one organopolysiloxane containing units of the general formula Ra(R1O)bSiO[4?(a+b)]/2 (I), wherein the radicals and indexes have the meaning indicated in claim 1, provided that the total is a+b?3 and in more than 80% of all units, the formula (I) is equal to 2, and (C) at least one siloxane-organo-copolymer. The invention further relates to a method for the production thereof and to the use thereof in the dyeing of polymer materials.
    Type: Application
    Filed: November 18, 2016
    Publication date: October 31, 2019
    Inventors: Oliver Schäfer, Peter Randel
  • Publication number: 20190315927
    Abstract: The invention relates to a process for producing oxamide-functional siloxanes by reacting (A) siloxanes of the general formula (I) with (B) siloxanes selected from (B1) linear siloxanes of the general formula HO[SiR2O]tH??(II) and (B2) cyclic compounds of the general formula (SiR42O)s??(III), wherein the radicals and indices have the definitions specified in claim 1, in the presence of (C) catalysts.
    Type: Application
    Filed: April 7, 2017
    Publication date: October 17, 2019
    Inventors: Oliver Schäfer, Petra Gratzl
  • Patent number: 10442150
    Abstract: The invention relates to a medical apparatus for extracorporeal blood treatment, comprising an antimicrobial surface coating, wherein the antimicrobial surface coating is a powder coating. It further relates to a method for controlling microbes and microorganisms on a surface of a medical apparatus, wherein a powder coating contains components, in particular additives, with an antimicrobial effect.
    Type: Grant
    Filed: April 27, 2017
    Date of Patent: October 15, 2019
    Assignee: B. Braun Avitum AG
    Inventors: Oliver Schäfer, Christian Schleicher
  • Patent number: 10431053
    Abstract: A checkout terminal, and method of using, having a goods receiving area for receiving goods, a goods recording area for recording the data of the goods, and a goods dispensing area for dispensing the goods. The checkout terminal further has a control unit configured for controlling the operation of the checkout terminal. The goods dispensing area has a first packing trough which is configured for temporarily collecting the goods. A goods transport means is configured for transporting the goods along a direction of transport form the goods receiving area via the goods recording area toward the first packing trough of the goods dispensing area. The goods recording area having a goods recording device having a scanner, which is configured for scanning a respective scannable identifier of the goods, located within a goods recording volume of the goods recording area and for providing a scanning result signal.
    Type: Grant
    Filed: August 20, 2015
    Date of Patent: October 1, 2019
    Assignee: WINCOR NIXDORF INTERNATIONAL GMBH
    Inventor: Oliver Schaefer
  • Publication number: 20190292365
    Abstract: Hardness of TPU can be significantly lowered while improving moisture resistance and other physical properties, by incorporating a thermoplastic organopolysiloxane/organic copolymer into the TPU.
    Type: Application
    Filed: July 13, 2016
    Publication date: September 26, 2019
    Applicant: Wacker Chemie AG
    Inventor: Oliver SCHAEFER
  • Patent number: 10396545
    Abstract: The invention relates to an insulation monitoring device and to a method for conforming-to-standards monitoring of an insulation resistance of an ungrounded single-phase or multi-phase power supply system having at least two active conductors. According to the invention, the insulation monitoring device comprises a voltage monitoring circuit for permanently registering the conductor voltage to ground potential for at least one active conductor. If an excess voltage is detected on an active conductor, the voltage monitoring circuit generates a shut-down signal so as to shut down the power supply system.
    Type: Grant
    Filed: April 22, 2016
    Date of Patent: August 27, 2019
    Assignee: BENDER GMBH & CO. KG
    Inventors: Dirk Pieler, Oliver Schaefer
  • Publication number: 20190225802
    Abstract: Polymer compositions containing a polyamide polymer and a high molecular weight organopolysiloxane copolymer containing amide, urethane, urea, or thiourea groups exhibit high tensile strength but are soft elastomeric thermoplastics.
    Type: Application
    Filed: October 7, 2016
    Publication date: July 25, 2019
    Applicant: WACKER CHEMIE AG
    Inventor: Oliver SCHAEFER
  • Patent number: 10337724
    Abstract: A machine for extracorporeal blood treatment including a housing for accommodating operational components of the machine for extracorporeal blood treatment and a light-emitting unit having no diffusion disk for displaying an operating and/or therapy condition of the machine according to the principle of ambient light. The light-emitting unit is arranged in a predetermined sequence and/or with predetermined shaping on at least one portion of the housing. The light-emitting unit is a flexible light conductor having at least one end-face light coupling surface at a first end and at least one end-face light output surface at a second end or alternatively a self-luminous flat and/or flexible OLED unit.
    Type: Grant
    Filed: January 25, 2017
    Date of Patent: July 2, 2019
    Assignee: B. Braun Avitum AG
    Inventors: Oliver Schäfer, Christian Schleicher, Dirk Möller
  • Patent number: 10340680
    Abstract: The invention relates to a method and to a device for shutting down an installation part provided with connected equipment in an ungrounded power supply system in case of an insulation fault in a direct-current circuit connected to the installation part to be shut down. The invention is based on first determining the insulation resistance of the IT power supply system and measuring the displacement direct voltage present in the IT power supply system and then determining by combined evaluation of the measured results if there is a risk of an disruptive influence on the operating behavior of the connected equipment due to the displacement direct voltage occurring during the duration of a predeterminable time interval. If a disruptive influence is to be expected, the installation part exhibiting the insulation fault is immediately shut down together with the direct-current circuit and the equipment connected thereto.
    Type: Grant
    Filed: May 9, 2016
    Date of Patent: July 2, 2019
    Assignee: BENDER GMBH & CO KG
    Inventors: Dieter Hackl, Oliver Schaefer
  • Publication number: 20190097523
    Abstract: The invention relates to an electric circuit arrangement for the input protection circuit of a switching power supply, having a surge protection circuit, which is contacted with a supply voltage on an input side and to which a current-compensated choke is connected as a suppression component, said current-compensated choke being connected to a rectifier circuit comprising an energy storage means on an output side. Via modifications to the circuit technology, such as using two varistors as surge protections, and by using suitable switching elements, such as silicon diodes as rectifier elements and ceramic capacitors as an energy storage means, the input protection circuit is designed such that the requirements, which an expanded input voltage range demands of a surge circuit, are fulfilled. Furthermore, the invention relates to a switching power supply having an electric circuit arrangement according to the invention for the input protection circuit.
    Type: Application
    Filed: September 24, 2018
    Publication date: March 28, 2019
    Inventor: Oliver Schaefer
  • Publication number: 20190031833
    Abstract: Organopolysiloxanes having amino groups are prepared by reacting wherein (A) silanes of the formula R1—O—SiR2—O—R1 ??(I) with (B) silanes of the formula (R32N)—X—SiR42—O—R2 ??(II) and (C) water.
    Type: Application
    Filed: January 27, 2017
    Publication date: January 31, 2019
    Applicant: Wacker Chemie AG
    Inventors: Alfred POPP, Oliver SCHAEFER
  • Patent number: 10172986
    Abstract: A device for extracorporeal blood treatment, in particular a dialysis machine, including a peristaltic pump for conveying fluid from a low-pressure side to a high-pressure side, the peristaltic pump comprising a rotor which is rotatable around a rotor axis and a support area which is formed around the rotor axis in an arcuate manner, with an elastically deformable fluid line being able to be positioned between the rotor and the support area and being deformed between the rotor and the support area with rotation of the rotor while forming a cross-sectional constriction, so that upon rotation of the rotor with respect to the support area a fluid in the fluid line is conveyed from the low-pressure side to the high-pressure side. The device includes a machine housing part realized as a formed sheet metal part, wherein the support area is formed in the machine housing part by plastic deformation.
    Type: Grant
    Filed: February 18, 2016
    Date of Patent: January 8, 2019
    Assignee: B. BRAUN AVITUM AG
    Inventors: Oliver Schaefer, Kai-Uwe Ritter
  • Publication number: 20180356456
    Abstract: The invention relates to a method for insulation fault location as well as to an insulation fault location system for an ungrounded power supply system. The main idea of the present invention rests upon the idea that while preserving a predetermined maximally admissible test current amplitude, a test current pulse duration of a test current is adaptively set such that all interfering values are eliminated in a captured differential current, in particular the leakage currents arising in consequence of large supply leakage capacitances. Should a test of the value of the final value of the differential current reveal that a test current threshold value has been exceeded, this exceedance can be seen as an indicator that the respective conductor section is therefore in the fault circuit.
    Type: Application
    Filed: June 7, 2018
    Publication date: December 13, 2018
    Inventors: Oliver Schaefer, Helmut Becker, Carsten Hartmann