Patents by Inventor Henning Frevert

Henning Frevert 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).

  • Safety device for multichannel controlling of a safety-related unit
    Patent number: 8692420
    Abstract: The invention relates to a safety device, comprising a first, microprocessor-controlled control unit and a second control unit, for multichannel controlling of a safety-related unit. The first microprocessor-controlled control unit has a signal generation unit for generating a first monitoring signal that indicates the current operating state of the first control unit. In addition, a switching unit drivable by the first and second control unit that can turn on the safety-related unit or run it into a secured state is provided. The second control unit has a monoflop that, in response to the monitoring signal, drives the switching unit in such a manner that the safety-related unit can be driven into a safe state in case of faulty operation of the first control unit. A device is associated with the first control unit for generating an enable signal for the second control unit.
    Type: Grant
    Filed: July 9, 2008
    Date of Patent: April 8, 2014
    Assignee: Phoenix Contact GmbH & Co. KG
    Inventor: Henning Frevert
  • Safety device for multichannel controlling of a safety-related unit
    Publication number: 20100207720
    Abstract: The invention relates to a safety device, comprising a first, microprocessor-controlled control unit and a second control unit, for multichannel controlling of a safety-related unit. The first microprocessor-controlled control unit has a signal generation unit for generating a first monitoring signal that indicates the current operating state of the first control unit. In addition, a switching unit drivable by the first and second control unit that can turn on the safety-related unit or run it into a secured state is provided. The second control unit has a monoflop that, in response to the monitoring signal, drives the switching unit in such a manner that the safety-related unit can be driven into a safe state in case of faulty operation of the first control unit. A device is associated with the first control unit for generating an enable signal for the second control unit.
    Type: Application
    Filed: July 9, 2008
    Publication date: August 19, 2010
    Applicant: PHOENIX CONTACT GMBH & CO. KG
    Inventor: Henning Frevert