Patents by Inventor Roland Leibfarth

Roland Leibfarth 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: 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
  • Publication number: 20180328537
    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: Application
    Filed: July 11, 2018
    Publication date: November 15, 2018
    Inventors: Mark HUFNAGEL, Roland LEIBFARTH
  • Patent number: 9346091
    Abstract: A safety device for a machine, in which machine a first machine part having a leading edge performs a working movement towards a second machine part, comprises a plurality of optical safety barriers and an evaluation unit. The optical safety barriers move in the working movement simultaneously with the first machine part in such a manner that the safety barriers move in advance of the leading edge at various spaced dispositions. The optical safety barriers span a protective field that has a two-dimensional cross section. The evaluation unit is designed for generating a stop signal to stop the first machine part in dependence upon the optical safety barriers. Towards the end of the working movement, the optical safety barriers are held substantially stationary in the region of the second machine part. The optical safety barriers are deactivated one following the other before they are interrupted by the first machine part.
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: May 24, 2016
    Assignee: PILZ GMBH & CO. KG
    Inventors: Mark Hufnagel, Roland Leibfarth
  • Publication number: 20060268843
    Abstract: The invention relates to a server arrangement, a service distribution module for a server arrangement and a method for providing telecommunications services using a server arrangement, in particular a Service Control Point (SCP1), comprising the steps: receiving a service request message (M1-M3) by a communication interface (CI) of the server arrangement, distributing the service request of the service request message (M1-M3) to a first or to at least one second service provision means (S12) depending on the service request message (M1-M3), and providing a first service by the first service provision means (S11) or providing at least one second service by the at least one second service provision means (S12). The service distribution means (SDM) concatenates the first (S11) and the at least one second service provision means (S12) depending on at least one concatenation condition (CC1).
    Type: Application
    Filed: May 24, 2006
    Publication date: November 30, 2006
    Inventors: Uwe Spitzer, Andreas Breiholz, Josef Kneer, Dieter Gramsch, Roland Leibfarth