Patents Assigned to Pilz GmbH & Co. KG
  • Patent number: 11022948
    Abstract: A safety control device comprises: at least one input module having a number of input interfaces; at least one output module having a number of output interfaces; and a computing unit that includes: a programmable processor; a read-only memory to store an operating program for the processor with program code in machine-readable form for providing a function library with a number of functions of the safety control device; and a non-volatile, overwritable storage medium. A number of function activation codes are stored downloadably in the storage medium, and each of the function activation codes is capable of being assigned a function of the function library such that by logically linking the function activation codes to their associated functions of the function library only those functions of the function library can be activated whose function activation codes are stored in the storage medium.
    Type: Grant
    Filed: May 22, 2018
    Date of Patent: June 1, 2021
    Assignee: Pilz GmbH & Co. KG
    Inventors: Jochen Bauknecht, Jörg Bruchertseifer, Károly Rick, Marcel Wöhner
  • Patent number: 11005360
    Abstract: Apparatus for voltage monitoring of a dual-channel device which implements or monitors a safety function of a machine or technical installation. The apparatus comprises an input for receiving an input voltage, a voltage regulator for generating a defined output voltage, and an output for providing the defined output voltage for the operation of the device. A voltage monitor compares a voltage present at the output with the defined output voltage and switches off the output in case the present voltage at the output deviates from the defined output voltage. A first interface and a second interface connect the voltage regulator to the dual-channels of the device, wherein the first interface and the second interface connect to a first processing channel and a second processing channel of the device separately so that the first processing channel and the second processing channel of the device can detune the voltage regulator independently.
    Type: Grant
    Filed: November 22, 2019
    Date of Patent: May 11, 2021
    Assignee: PILZ GMBH & CO. KG
    Inventors: Daniel Bakovic, Matthias Schweiker, Uwe Schoch, Juergen Pullmann
  • Patent number: 10971995
    Abstract: Apparatus for voltage monitoring of a dual-channel device which implements or monitors a safety function of a machine or technical installation. The apparatus comprises an input for receiving an input voltage, a voltage regulator for generating a defined output voltage, and an output for providing the defined output voltage for the operation of the device. A voltage monitor compares a voltage present at the output with the defined output voltage and switches off the output in case the present voltage at the output deviates from the defined output voltage. A first interface and a second interface connect the voltage regulator to the dual-channels of the device, wherein the first interface and the second interface connect to a first processing channel and a second processing channel of the device separately so that the first processing channel and the second processing channel of the device can detune the voltage regulator independently.
    Type: Grant
    Filed: November 22, 2019
    Date of Patent: April 6, 2021
    Assignee: PILZ GMBH & CO. KG
    Inventors: Daniel Bakovic, Matthias Schweiker, Uwe Schoch, Juergen Pullmann
  • Patent number: 10965061
    Abstract: A securing apparatus for mechanically securing at least one connecting plug to a housing is provided, where the securing apparatus contains (a) a bow-like shaped base body, where the body can slide laterally onto the housing, and be fixed to the housing, (b) at least one receiving section, which is formed on the base body and which is designed for receiving the connecting plug, and (c) a plurality of strip-shaped, tightenable securing devices, which are capable of securing the connecting plug to the base body and/or the base body to the housing.
    Type: Grant
    Filed: September 20, 2019
    Date of Patent: March 30, 2021
    Assignee: Pilz GmbH & Co. KG
    Inventors: Andreas Veit, Joachim Rink, Markus Cech
  • Patent number: 10937283
    Abstract: A switching device shuts down a machine installation in failsafe fashion. The switching device includes an input for a defined input signal, a first output providing a first current path to the machine installation, a display element capable of assuming first and second states, and a processor having first and second modes of operation. The first current path includes a switching element capable of assuming closed and open operating states. In the first mode, the processor controls the switching element in response to the defined input signal in order to selectively close or interrupt the first current path. In the second mode, the processor controls the switching element into the open operating state regardless of the defined input signal. In the first mode, the display element assumes the first and second display states in response to the switching element being in the closed and open operating states, respectively.
    Type: Grant
    Filed: November 22, 2019
    Date of Patent: March 2, 2021
    Assignee: PILZ GMBH & CO. KG
    Inventors: Sascha Heinisch, Jochen Bauknecht, Thomas Haeberle
  • Patent number: 10934639
    Abstract: A woven fabric having at least three layers disposed on top of one another. One layer forms a lowermost woven fabric layer and another layer forms an uppermost woven fabric layer. A first and a second woven layer have electrically conductive warp threads and/or electrically conductive weft threads. An intermediate layer is disposed between the first woven fabric layer and the second woven fabric layer. The first woven fabric layer, the second woven fabric layer, and the intermediate layer form a sensor arrangement which has an electrical property that varies while a force acts on the layers. Each of the uppermost and lowermost woven fabric layer in terms of weaving technology is connected to one of the other woven fabric layers present.
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: March 2, 2021
    Assignee: PILZ GMBH & CO. KG
    Inventors: Hansjürgen Horter, Karl Gönner, Paul Hofmann, Metin Caliskan, Onedin Ibrocevic, Matthias Kuczera
  • Patent number: 10909439
    Abstract: System for safeguarding a person from an autonomously operating machine. The system comprises a safety controller for asserting control over the autonomously operating machine based on an input signal generated by a body-worn. The body-worn device comprises safety means for ensuring failsafe locking and arrangement of the body-worn device on the person in a predefined manner. Furthermore, the body-worn device is configured to generate the input signal only when the body-worn device is locked and arranged in said predefined manner.
    Type: Grant
    Filed: February 13, 2019
    Date of Patent: February 2, 2021
    Assignee: PILZ GMBH & CO. KG
    Inventors: Jan Tournois, Max Veenman
  • Patent number: 10896794
    Abstract: A circuit arrangement comprises: an electronic switch; at least one relay including a relay coil; a shunt resistor; a voltage supply device to supply an operating voltage to the at least one relay, wherein the electronic switch, the relay coil of the at least one relay, and the shunt resistor are electrically connected in series to one another between the operating voltage and ground; a current regulator to drive the electronic switch with a pulse width modulation to adjust a control current that flows through the relay coil; at least one sensor to generate sensor data indicative of shocks, impacts or vibrations acting on the at least one relay; and an evaluating unit to evaluate the sensor data, wherein the current regulator is configured to adjust the control current based on the sensor data evaluated by the evaluating unit.
    Type: Grant
    Filed: February 9, 2018
    Date of Patent: January 19, 2021
    Assignee: Pilz GmbH & Co. KG
    Inventors: Jürgen Pullmann, Bernd Neuschwander, Frieder Scharpf
  • Patent number: 10847963
    Abstract: Safety circuit arrangement for failsafe shutdown of an electrically driven installation, comprising a safety switching device, having a safety switching relay that is configured to close or disconnect a power supply path to the installation in a failsafe manner, and a signaling device, having an actuator and a signal generator that is connected to the safety switching device by a first line. The actuator of the signaling device is interchangeable between first and second defined states and the signal generator is configured to generate a first clock signal on the first line only when the actuator is in the first defined state. Furthermore, the safety switching device is configured to draw electrical power from the first clock signal that is greater than or equal to the defined actuating power of the safety switching relay and to convert said electrical power to direct current for actuating the safety switching relay.
    Type: Grant
    Filed: December 18, 2017
    Date of Patent: November 24, 2020
    Assignee: PILZ GMBH & CO. KG
    Inventor: Jürgen Pullmann
  • Patent number: 10826472
    Abstract: A digital input circuit adopts a first state when an input signal is below a lower threshold value and adopts a second state when the input signal is above an upper threshold value. The digital input circuit comprises first and second subcircuits that exhibit a non-ideal current output behavior at least in the second state, and each comprises a current stabilizing element with a driving circuit and a voltage stabilizing element. The first and second subcircuits are configured such that, at least in a portion of the second state, an electric current flowing through the first subcircuit's voltage stabilizing element consists substantially of a stabilized current of the second subcircuit, and an electric current that flows through the second subcircuit's voltage stabilizing element consists substantially of a stabilized current of the first subcircuit, such that the non-ideal current output behavior of the first and second subcircuits compensate for each other.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: November 3, 2020
    Assignee: Pilz GmbH & Co. KG
    Inventor: Bernd Harrer
  • Patent number: 10768588
    Abstract: An apparatus is described for controlling a plurality k of visual indicating elements of at least one electronic device, where k?2, wherein each of the indicating elements is configured to emit light for visual indication of an operating status of the at least one electronic device and/or individual components of the at least one electronic device. The apparatus comprises at least one evaluation and control unit connected to the indicating elements to control intensities of light emitted from the indicating elements to cause the indicating elements emit light having defined intensities during a normal operating mode and, during an operating action of the at least one electronic device, to visually accentuate one or more of the indicating elements that are assigned to the operating action by changing relative intensities of the light emitted from the indicating elements.
    Type: Grant
    Filed: March 13, 2019
    Date of Patent: September 8, 2020
    Assignee: Pilz GmbH & Co. KG
    Inventor: Frank von Haugwitz
  • Patent number: 10727014
    Abstract: A safety circuit for fail-safe shutdown of a dangerous technical system with a plurality of disconnectable system component groups comprises a plurality of safety switching devices electrically connected to one another in series to form a closed-loop monitoring circuit in which electric monitoring current flows through the safety switching devices. Each of the safety switching devices includes: a fail-safe control unit that detects and evaluates information about a current operating state of any system component group assigned to it; and a current flow adjuster that changes the current flow within the monitoring circuit to interrupt the monitoring circuit in response to detection of a safety command by the safety switching device. The fail-safe control units generate a shutdown signal in response to an interruption of the current flow within the monitoring circuit, which causes the fail-safe shutdown of any of the system component group not already shut down.
    Type: Grant
    Filed: September 21, 2017
    Date of Patent: July 28, 2020
    Assignee: Pilz GmbH & Co. KG
    Inventor: Christoph Zinser
  • Patent number: 10663360
    Abstract: Multilayer tactile sensor with a first layer that comprises a first electrode, a second layer that comprises a second electrode and an intermediate layer of pressure-sensitive material that is disposed between the first and second layers and that spaces apart the first electrode from the second electrode. The sensor further comprises a fastening means for fixing the first and second electrodes relative to each other. At least the first electrode is made of electrically conductive yarn and extends along a defined longitudinal direction. The fastening means comprises at least a first seam that extends in the longitudinal direction and that comprises at least one thread that is fed repeatedly multiple times through the pressure-sensitive material in order to fix the first electrode in a defined position.
    Type: Grant
    Filed: January 12, 2018
    Date of Patent: May 26, 2020
    Assignee: PILZ GMBH & CO. KG
    Inventors: Onedin Ibrocevic, Matthias Schweiker, Bernd Neuschwander, Matthias Kuczera
  • Patent number: 10666024
    Abstract: A housing for an electrical device comprises a housing bottom, a fastening element, and an unlocking element and is closeable by a housing cover. The housing bottom includes an elastically deformable connecting section to connect the housing to a machine, a technical system, or a building wall. The fastening element is disposed on an outer face of the connecting section and is connectable in a form-fitting and/or friction-fitting manner to a corresponding retaining element of the machine, the technical system, or the building wall. The unlocking element is disposed on an inner face of the connecting section and is operatively connected to the fastening element. The unlocking element is user actuatable only from an inside of the housing when the housing is open in order to release the form-fitting and/or friction-fitting connection of the fastening element to the retaining element of the machine, the technical system, or the building wall.
    Type: Grant
    Filed: March 7, 2019
    Date of Patent: May 26, 2020
    Assignee: PILZ GMBH & CO. KG
    Inventors: Jörg Seid, Tobias Hampe
  • Patent number: 10558189
    Abstract: A safety control system for switching on and safely switching off at least one actuator, including at least one input module for evaluating an input signal of a safety transmitter and for generating an output signal, and at least one output module for the safe actuation of the at least one actuator as a function of the output signal of the input module. The input signal has different signal parameters as a function of the type of safety transmitter. Furthermore, the safety control system includes a setting unit having a memory in which the signal parameters for the input module are stored, and the input module evaluates the input signal as a function of the signal parameters.
    Type: Grant
    Filed: May 11, 2016
    Date of Patent: February 11, 2020
    Assignee: PILZ GMBH & CO. KG
    Inventors: Thilo Hutt, Dietmar Seizinger, Marco Kluge, Stephan Lehmann
  • Patent number: 10544898
    Abstract: A machine has a first machine part and a second machine part. The first machine part carries out a working movement towards the second machine part in order to machine a workpiece. The first machine part has a leading edge, which defines a movement plane in the course of the working movement. For safeguarding the machine, a plurality of images including spatially resolved representations of the edge, at least a part of the workpiece, and a protective region defined between the edge and the second machine part are acquired. A motion speed of the first machine part relative to the second machine part is determined on the basis of the plurality of images. The motion speed is compared to a reference speed value or speed profile, defining a nominal speed of the first machine part relative to the second machine part during the working movement and an acceptable tolerance interval. The working movement is stopped if the motion speed deviates from the reference speed beyond the tolerance interval.
    Type: Grant
    Filed: July 11, 2018
    Date of Patent: January 28, 2020
    Assignee: PILZ GMBH & CO. KG
    Inventors: Mark Hufnagel, Roland Leibfarth
  • Patent number: 10532714
    Abstract: A safety switching device for switching on and safely switching off an electrical load, comprising a failsafe evaluation/control unit, an output terminal for providing a potential, a switching element having a first working contact, wherein the potential is connectable to the output terminal via the first working contact, and an input terminal for receiving an input signal for operating the switching element via the evaluation/control unit. Additionally, the safety switching device comprises a separator having a connecting piece, a drive element and a separating element. The drive element is configured to mechanically move the separating element from a first position into a second position and the connecting piece and the first working contact electrically connect in series with one another the potential to the output terminal. Further, in the second position the separating element irreversibly separates the connecting piece into two pieces.
    Type: Grant
    Filed: May 18, 2017
    Date of Patent: January 14, 2020
    Assignee: PILZ GMBH & CO. KG
    Inventor: Joerg Seid
  • Patent number: 10483725
    Abstract: A carrier rail housing comprises: a carrier rail receiving opening into which the holding legs of a carrier rail are insertable; a locking mechanism to secure the holding legs in a desired mounting position and comprising locking slides to interlock with the carrier rail housing in a locking position; a plug-in contact element arranged inside the carrier rail housing to face the carrier rail receiving opening; and a bus connector into which plug-in contacts of the plug-in contact element are insertable, the bus connector being connectable to a plug-in contact element of at least one additional carrier rail housing, wherein each of the locking slides comprises a first end that comprises a holding section that extends in sections into the carrier rail receiving opening in the locking position, so that the bus connector is secured between the holding sections of the locking slides and the plug-in contact element.
    Type: Grant
    Filed: October 18, 2018
    Date of Patent: November 19, 2019
    Assignee: Pilz GmbH & Co. KG
    Inventor: Lothar Merz
  • Patent number: 10460895
    Abstract: A safety switching device for fail-safely disconnecting an electrical load has an input part for receiving a safety-relevant input signal, a logic part for processing the at least one safety-relevant input signal, and an output part. The output part has a relay coil and four relay contacts. The first and second relay contacts are arranged electrically in series with one another. The third and fourth relay contacts are also arranged electrically in series with one another. The first and the third relay contacts are mechanically coupled to each other and form a first group of positively driven relay contacts. The second and the fourth relay contacts are mechanically coupled to each other and form a second group of positively driven relay contacts. The logic part redundantly controls the first and the second groups of positively driven relay contacts to selectively allow, or to interrupt in a fail-safe manner, a current flow to the electrical load, depending on the safety-relevant input signal.
    Type: Grant
    Filed: September 19, 2017
    Date of Patent: October 29, 2019
    Assignee: PILZ GMBH & CO. KG
    Inventors: Jürgen Pullmann, Roland Rupp, Christoph Zinser, Antonio Spataro, Marco Giger, Hans Schwenkel
  • Patent number: 10437571
    Abstract: A user program for a safety controller is created by means of a program editor. The user program has a first program portion and at least one additional program portion. The first program portion defines safety-related logical dependencies between selected sensor signals and actuator signals. The user program is compiled and linked, in order to obtain an executable original program code. The original program code is transferred to a first memory of the safety controller and executed by a processor of the safety controller. The first program portion may be modified and compiled in order to obtain a modified first code portion. The modified first code portion is transferred to a second memory of the safety controller while the original program code is executed. The modified first code portion is then executed in addition to the original additional code portion and instead of the original first code portion.
    Type: Grant
    Filed: November 11, 2016
    Date of Patent: October 8, 2019
    Assignee: PILZ GMBH & CO. KG
    Inventors: Stefan Woehrle, Frank Von Haugwitz, Ralf Bauer