Patents by Inventor Wolfgang Spahn

Wolfgang Spahn 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: 11134066
    Abstract: To provide secure communication over end-to-end data paths or segments of end-to-end paths in a timed deterministic packet network including a plurality of packet engines that perform packet handling, cipher engines are provided separately from the packet engines. The cipher engines are operative to perform at least one cyber security function. A cipher engine and key manager provides central control for the plurality of cipher engines. A centralized packet flow path manager, PFPM, may set up endpoint nodes and intermediate transit nodes of the end-to-end data paths of the packet network.
    Type: Grant
    Filed: September 9, 2019
    Date of Patent: September 28, 2021
    Assignee: ABB Power Grids Switzerland AG
    Inventors: Wolfgang Spahn, Jon Duri Sarott
  • Patent number: 11115398
    Abstract: A packet network includes packet engines that perform packet handling. Cipher engines are provided separately from the packet engines for encryption and/or authentication operations. To preserve relative timing and ordering of data packets, a packet engine performs pre-shaping of data traffic, wherein the packet engine inserts dummy packets into a data flow. The packet engine provides the pre-shaped data traffic to a cipher engine.
    Type: Grant
    Filed: September 9, 2019
    Date of Patent: September 7, 2021
    Assignee: ABB POWER GRIDS SWITZERLAND AG
    Inventors: Wolfgang Spahn, Walter Binz
  • Publication number: 20200007517
    Abstract: To provide secure communication over end-to-end data paths or segments of end-to-end paths in a timed deterministic packet network including a plurality of packet engines that perform packet handling, cipher engines are provided separately from the packet engines. The cipher engines are operative to perform at least one cyber security function. A cipher engine and key manager provides central control for the plurality of cipher engines. A centralized packet flow path manager, PFPM, may set up endpoint nodes and intermediate transit nodes of the end-to-end data paths of the packet network.
    Type: Application
    Filed: September 9, 2019
    Publication date: January 2, 2020
    Inventors: Wolfgang Spahn, Jon Duri Sarott
  • Publication number: 20190394180
    Abstract: A packet network includes packet engines that perform packet handling. Cipher engines are provided separately from the packet engines for encryption and/or authentication operations. To preserve relative timing and ordering of data packets, a packet engine performs pre-shaping of data traffic, wherein the packet engine inserts dummy packets into a data flow. The packet engine provides the pre-shaped data traffic to a cipher engine.
    Type: Application
    Filed: September 9, 2019
    Publication date: December 26, 2019
    Inventors: Wolfgang Spahn, Walter Binz
  • Patent number: 9140372
    Abstract: A pressure valve includes a spring plate configured to be displaced by a setting spindle. The setting spindle includes an adjustment screw configured to axially displace a spindle shaft on which the spring plate is provided. The adjustment screw and the spindle shaft are configured in such a way that virtually no torque is transmitted to the spindle shaft via the adjustment screw.
    Type: Grant
    Filed: January 9, 2013
    Date of Patent: September 22, 2015
    Assignee: Robert Bosch GmbH
    Inventors: Karl Cords, Wolfgang Spahn, Dragoljub Denadija
  • Patent number: 8662097
    Abstract: A valve, preferably of the flow control construction type, has a valve piston or pressure regulator piston mounted in an axially displaceable manner in a valve housing. The valve piston and the valve housing form a damping chamber for the motional damping of the valve piston.
    Type: Grant
    Filed: January 20, 2011
    Date of Patent: March 4, 2014
    Assignee: Robert Bosch GmbH
    Inventors: Rainer Imhof, Wolfgang Spahn
  • Publication number: 20110197979
    Abstract: A valve, preferably of the flow control construction type, has a valve piston or pressure regulator piston mounted in an axially displaceable manner in a valve housing. The valve piston and the valve housing form a damping chamber for the motional damping of the valve piston.
    Type: Application
    Filed: January 20, 2011
    Publication date: August 18, 2011
    Applicant: Robert Bosch GmbH
    Inventors: Rainer Imhof, Wolfgang Spahn
  • Patent number: 6789778
    Abstract: A solenoid valve, in particular for limiting the pressure of a fluid, with a flat armature is mounted with an axial gap to a pole core. This pole core is installed in a housing of the solenoid valve and is stressed from both faces with the same fluid pressure.
    Type: Grant
    Filed: March 26, 2001
    Date of Patent: September 14, 2004
    Assignee: Hydraulik-Ring GmbH
    Inventors: Wolfgang Spahn, Klemens Strauss