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).

  • Publication number: 20170105550
    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: Application
    Filed: October 18, 2016
    Publication date: April 20, 2017
    Applicant: WINCOR NIXDORF INTERNATIONAL GMBH
    Inventors: Oliver SCHAEFER, Guenter BAITZ, Felix NEUBERT
  • Publication number: 20170067953
    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: Application
    Filed: August 26, 2016
    Publication date: March 9, 2017
    Inventors: Dieter Hackl, Oliver Schaefer
  • Patent number: 9562529
    Abstract: Tube roller pumps for blood treatment devices are disclosed. The pumps include a curved surface with a rotor rotatable therein. The rotor attaches via a shaft reception to a drive shaft of the pump. The rotor has a first locking element for axially locking the rotor on the shaft and a second locking element for rotationally coupling the shaft and the rotor. The shaft reception and the drive shaft guide the rotor to a position on the shaft, when pushed onto the shaft, and, at this position, the first element may be moved by the shaft from locked to released. The rotor, when pushed further onto the shaft, is moved to another position at which the first element is automatically moved back to locked and the second element may be brought into manual engagement with the shaft to transmit torque from the shaft to the rotor.
    Type: Grant
    Filed: July 2, 2013
    Date of Patent: February 7, 2017
    Assignee: B. Braun Avitum AG
    Inventor: Oliver Schaefer
  • Publication number: 20170031373
    Abstract: The invention relates to a method and to devices for extended insulation-fault search in an IT power supply system using a multifunctional test current, wherein, selectively and depending on the application, the test current functions as a voltage compensation current so as to compensate a voltage increase in an active conductor of the IT power supply system, as a tripping current so as to trip a residual current protection device arranged in a subsystem of the IT power supply system and/or as a leakage-capacitance compensation current so as to compensate a capacitive leakage current. The test current can fulfil more than one of the cited functions simultaneously.
    Type: Application
    Filed: July 25, 2016
    Publication date: February 2, 2017
    Inventors: Dieter Hackl, Oliver Schaefer
  • Publication number: 20160336732
    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: Application
    Filed: May 9, 2016
    Publication date: November 17, 2016
    Inventors: Dieter Hackl, Oliver Schaefer
  • Publication number: 20160321877
    Abstract: The invention relates to a POS system arrangement with a transport belt device with at least one belt portion which for the transport of the goods present thereon can be put into a feed movement along a goods feed path, wherein the goods along the goods feed path are separable from each other by at least one goods divider, and a goods detection device for detecting goods transported by means of the transport belt device. There is provided at least one sensor device arranged at a distance from the goods detection device along the goods feed path with a sensor and a detection area, wherein the sensor device is configured to detect by means of the sensor whether the goods divider is present in the detection area, and a control device which is configured to control the feed movement of the belt portion of the transport belt device.
    Type: Application
    Filed: April 28, 2016
    Publication date: November 3, 2016
    Applicant: WINCOR NIXDORF INTERNATIONAL GMBH
    Inventors: Guenter BAITZ, Marco FISCHER, Oliver SCHAEFER
  • Publication number: 20160315461
    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: Application
    Filed: April 22, 2016
    Publication date: October 27, 2016
    Inventors: Dirk Pieler, Oliver Schaefer
  • Publication number: 20160243296
    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: Application
    Filed: February 18, 2016
    Publication date: August 25, 2016
    Inventors: OLIVER SCHAEFER, KAI-UWE RITTER
  • Publication number: 20160245271
    Abstract: A method of conveying fluid in an apparatus for extracorporeal blood treatment is disclosed, wherein fluid is conveyed by a peristaltic pump from a low-pressure side to a high-pressure side, an elastically deformable fluid line arranged between the low-pressure side and the high-pressure side being deformed between a support surface and a rotor rotating with respect to the latter and having at least two pinch elements, wherein the pinch elements are repositioned at angles relative to each other during rotation of the rotor for causing pre-compression.
    Type: Application
    Filed: February 8, 2016
    Publication date: August 25, 2016
    Inventors: Oliver SCHAEFER, Kai-Uwe RITTER
  • Patent number: 9415911
    Abstract: A lid apparatus for a medical device for extracorporeal blood treatment that includes a lid which is hinged by means of at least one pivot joint at the medical device is disclosed. The pivot joint includes thereby a first joint section which may be positioned at the lid, and a second joint section which may be connectable to the medical device, wherein the joint sections are pivotable about a pivot axis at least between a first position, in which the lid is open, and a second position, in which the lid covers at least a part of the medical device, wherein also the joint sections are latchable in at least one pivoting position.
    Type: Grant
    Filed: June 26, 2013
    Date of Patent: August 16, 2016
    Assignee: B. BRAUN AVITUM AG
    Inventor: Oliver Schaefer
  • Patent number: 9388803
    Abstract: Medical devices for extracorporeal blood treatment including tube roller pumps. Tube roller pumps including a pump housing having a bent bearing surface and a rotor being rotatable inside the bearing surface, wherein a tubing segment can be introduced between the bearing surface and the rotor in the form of a loop. A stationary first receiving portion for accommodating one end of the loop-shaped tubing segment and a rocker arm including a second receiving portion for accommodating the other end of the loop-shaped tubing segment is located at the pump housing, wherein the rocker arm is rotatable about a pivoting axis so that the second receiving portion with the tubing segment can be brought into at least two different positions and that a first position represents a threading position and a second position represents an unthreading position for the tubing segment.
    Type: Grant
    Filed: July 2, 2013
    Date of Patent: July 12, 2016
    Assignee: B. Braun Avitum AG
    Inventors: Oliver Schaefer, Andreas Iske, Bjoern Broeker
  • Publication number: 20160182861
    Abstract: A reverse vending machine (10) has an insertion area (11) for inserting an object (14) into the inside (16) of the reverse vending machine (10), a transport unit (18) for transporting the object (14) in a transport area (12) along a transport axis (20) and an arrangement of cameras (24a to 24d) for capturing images of the object (14) from several capturing directions (26a to 26d). The image capturing direction of each camera (24a to 24d) is directed toward the transport area (12). Further, the cameras (24a to 24d) are arranged outside the transport area (12) and not below the transport area (12).
    Type: Application
    Filed: December 8, 2015
    Publication date: June 23, 2016
    Inventors: Guenter Baitz, Wolfgang Malke, Uwe Krueger, Oliver Schaefer
  • Patent number: 9316678
    Abstract: The invention relates to a method and a device for determining a maximum leakage current in unearthed power supply networks with a plurality of conductors. The method comprises the steps of: feeding of a measurement signal UP with a measurement frequency fpuls into a conductor arrangement, setting the measurement frequency fPuls, measuring a line-to-line voltage UL-E for each conductor, determining a maximum occurring line-to-line voltage UL-Emax from the measured line-to-line voltages UL-E, determining a voltage UZe across a measurement resistance RM for calculating a leakage impedance ZE, calculating the leakage impedance ZE, and calculating a maximum leakage current THC. The device comprises a signal generator for feeding in the UP with the fPuls, a network coupling circuit between the signal generator and the conductor arrangement, a voltage measuring circuit for measuring the UL-E, and an impedance measuring circuit for determining the Ze by means of the determining of the UZe.
    Type: Grant
    Filed: April 25, 2014
    Date of Patent: April 19, 2016
    Assignee: BENDER GMBH & CO. KG
    Inventor: Oliver Schaefer
  • Patent number: 9220884
    Abstract: Multi-connectors are disclosed for arranging a tubing segment and feeding/discharging lines of an extracorporeal blood circulation on a tube roller pump, the multi-connectors including a base and connectors for connecting the tubing segment to the feeding/discharging lines. A first connector includes a convex contour. The multi-connectors may be arranged on a medical device pump housing having a bearing surface and a rotor within the bearing surface, wherein a tube can be introduced between the bearing surface and the rotor and blood can be fed/discharged via feeding/discharging lines. A concave receiving portion is provided for the first connector, forming a pivot bearing to pivot the multi-connector. Pump housing means for locking adapted to interact with multi-connector means for locking are provided so the multi-connector can be detachably fastened.
    Type: Grant
    Filed: July 3, 2013
    Date of Patent: December 29, 2015
    Assignee: B. BRAUN AVITUM AG
    Inventors: Oliver Schaefer, Dirk Moeller, Bruno Stenzel
  • Publication number: 20150368050
    Abstract: A packing bay system for a goods checkout system has several packing bays for taking up goods, a conveying device which includes at least one conveyor belt section for conveying goods in a conveying direction, and a goods switch which is adjustably arranged on the conveying device and includes a diverting wall longitudinally extending along a direction of longitudinal extension. In a first position, the goods switch with the diverting wall extends at an angle to the conveying direction across the at least one conveyor section, in order to guide goods which on conveyance in the conveying direction get in contact with the diverting wall in a diverting direction directed parallel to the direction of longitudinal extension from the at least one conveyor section towards a first packing bay. The goods switch is adjustable from the first position into a second position.
    Type: Application
    Filed: June 22, 2015
    Publication date: December 24, 2015
    Inventors: Oliver Schaefer, Andreas Doell, Hans-Juergen Doell
  • Patent number: 9180241
    Abstract: Tube roller pumps for a medical device for extracorporeal blood treatment are disclosed. The pumps include a pump housing having a bearing surface and a rotor inside the bearing surface, wherein a tube is introduced between the bearing surface and the rotor in loop shape. Means for mounting the tubing segment are provided so the tubing segment can be pivot by pivoting a tilting element on which the tubing segment is at least partly mounted. A cover is mounted on the pump housing so that when closed upon pivoting the tubing segment toward the closed cover it constitutes a counter-bearing for the tilting element by which the tubing segment can be aligned with the pump housing. Means for automated unthreading of the tubing segment from the bearing are also included. Medical devices for extracorporeal blood treatment including the tube roller pump are also disclosed.
    Type: Grant
    Filed: July 3, 2013
    Date of Patent: November 10, 2015
    Assignee: B. Braun Avitum AG
    Inventor: Oliver Schaefer
  • Publication number: 20150309104
    Abstract: The invention relates to a differential current monitoring device for monitoring differential currents in power supply systems, having a first measuring current transformer and having a measuring circuit for determining the differential current and having a computing unit for evaluating the differential current and for generating a switch-off signal. The differential current monitoring device has a device for detecting arcs, the integration of which according to the invention can considerably reduce the technical effort needed to monitor the differential current in connection with the arc detection in comparison to a functionally and spatially separate arrangement of both protective measures.
    Type: Application
    Filed: September 20, 2013
    Publication date: October 29, 2015
    Inventors: Winfried MÖLL, Oliver SCHÄFER, Harald SELLNER, Bernd HÄUSLEIN, Michael KAMMER, Timm DECKER, Christian STROBL, Waldemar WEBER, Markus WIERSCH, Jürgen ZEBERL
  • Publication number: 20150255976
    Abstract: Methods and devices for insulation monitoring of an ungrounded IT power supply system having at least two phase conductors includes determining an insulation resistance separately for each phase conductor using a separate response value. In one embodiment of the invention, relevant current and voltage distributions are calculated. In another embodiment, a change time window is set within which a second response value is activated. In yet another embodiment, an option of shutting down/continuing operation of the IT power supply system is offered.
    Type: Application
    Filed: March 4, 2015
    Publication date: September 10, 2015
    Inventors: Dieter Hackl, Oliver Schaefer
  • Patent number: 9069025
    Abstract: The invention relates to a method and a device for monitoring the insulation of an ungrounded DC and/or AC voltage network. The method includes the following steps: (a) generating a measurement DC voltage Umess= that is connected to a ground on one side for a tvar; predeterminable measuring time frame tvar; (b) generating and superposing at least one measurement AC voltage Umess˜ connected to a ground and having a measurement duration tcons with the measurement DC voltage Umess? for forming a total measurement voltage Umess; (c) feeding the total measurement voltage Umess into the voltage network to be monitored; and (d) determining an insulating resistance R= from the measurement DC voltage Umess? and an insulating impedance Z from the measurement AC voltage Umess˜. The devise is configured to carry out the above method. The method and the device are suited in particular for monitoring the insulation in electric and hybrid vehicles.
    Type: Grant
    Filed: November 28, 2011
    Date of Patent: June 30, 2015
    Assignee: Bender GmbH & Co. KG
    Inventors: Oliver Schaefer, Karl Schepp
  • Publication number: 20140312917
    Abstract: The invention relates to a method and a device for determining a maximum leakage current in unearthed power supply networks with a plurality of conductors. The method comprises the steps of: feeding of a measurement signal UP with a measurement frequency fPuls into a conductor arrangement, setting the measurement frequency fPuls, measuring a line-to-line voltage UL-E for each conductor, determining a maximum occurring line-to-line voltage UL-Emax from the measured line-to-line voltages UL-E, determining a voltage UZe across a measurement resistance RM for calculating a leakage impedance ZE, calculating the leakage impedance ZE, and calculating a maximum leakage current THC. The device comprises a signal generator for feeding in the UP with the fPuls, a network coupling circuit between the signal generator and the conductor arrangement, a voltage measuring circuit for measuring the UL-E, and an impedance measuring circuit for determining the Ze by means of the determining of the UZe.
    Type: Application
    Filed: April 25, 2014
    Publication date: October 23, 2014
    Applicant: BENDER GMBH & CO. KG
    Inventor: Oliver Schaefer