Patents by Inventor Christina Grewe

Christina Grewe 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: 8766762
    Abstract: An overvoltage protection element is disclosed that includes a housing, connections for electrically connecting the overvoltage protection element to a current path or a signal path to be protected The overvoltage protection element further includes two varistors arranged inside the housing and electrically connected in parallel, and a center electrode arranged at least partially between the varistors. The housing has two housing halves made of metal and electrically connected to each other, wherein the center electrode is isolated from the housing halves and is electrically connected at the opposite sides of the electrode to a first connection area of a varistor and wherein the two varistors and the center electrode are sandwiched between the two housing halves. One housing half is designed as a cover, which has a covering section and a recessed engagement section.
    Type: Grant
    Filed: April 15, 2011
    Date of Patent: July 1, 2014
    Assignee: Phoenix Contact GmbH & Co. KG
    Inventors: Christian Depping, Christina Grewe, Joachim Wosgien, Philip Jungermann
  • Patent number: 8482896
    Abstract: An overvoltage protection element with a housing, at least one overvoltage limiting component in the housing, especially a varistor, and two connecting elements for electrically connecting the overvoltage protection element to a current or signal path in a normal state, the connecting elements being in electrically conductive contact with a respective pole of the overvoltage limiting component. In the normal state of the overvoltage protection element, at least one pole is connected to a connecting element via a plug-and-socket connection, and at least one spring is located between the housing and the overvoltage limiting component such that, when the overvoltage limiting component is thermally overloaded, it is turned by the spring separating the at least one pole from the assigned connecting element, and creating a thermally separating connection between the overvoltage limiting component and the housing when the temperature of the overvoltage limiting component exceeds a given boundary temperature.
    Type: Grant
    Filed: June 25, 2010
    Date of Patent: July 9, 2013
    Assignee: Phoenix Contact GmbH & Co. KG
    Inventors: Christina Grewe, Andreas Metzger
  • Publication number: 20130106567
    Abstract: An overvoltage protection element is disclosed that includes a housing, connections for electrically connecting the overvoltage protection element to a current path or a signal path to be protected The overvoltage protection element further includes two varistors arranged inside the housing and electrically connected in parallel, and a center electrode arranged at least partially between the varistors. The housing has two housing halves made of metal and electrically connected to each other, wherein the center electrode is isolated from the housing halves and is electrically connected at the opposite sides of the electrode to a first connection area of a varistor and wherein the two varistors and the center electrode are sandwiched between the two housing halves. One housing half is designed as a cover, which has a covering section and a recessed engagement section.
    Type: Application
    Filed: April 15, 2011
    Publication date: May 2, 2013
    Applicant: PHOENIX CONTACT GMBH & CO. KG
    Inventors: Christian Depping, Christina Grewe, Joachim Wosgien, Philip Jungermann
  • Patent number: 7995348
    Abstract: A surge protector includes a housing with connectors for passing through an electrical lead that is to be protected, whereby a surge voltage discharge device is located inside the housing and a mounting base for placement on a mounting rail is located on the outside of the housing. The mounting base on the housing exhibits a power surge proof discharge contact for contacting the mounting rail with the discharge contact being connected to the discharge connector of the surge protector. An attachment is connected in a removeable fashion to the mounting base which includes a contact component which contacts the discharge contact of the mounting base and is connected in an electrically conducting manner with a lead that exits the attachment.
    Type: Grant
    Filed: February 22, 2008
    Date of Patent: August 9, 2011
    Assignee: Phoenix Contact GmbH & Co. KG
    Inventors: Ralf Hausmann, Frank Welzel, Christina Grewe
  • Publication number: 20100328829
    Abstract: An overvoltage protection element with a housing, at least one overvoltage limiting component in the housing, especially a varistor, and two connecting elements for electrically connecting the overvoltage protection element to a current or signal path in a normal state, the connecting elements being in electrically conductive contact with a respective pole of the overvoltage limiting component. In the normal state of the overvoltage protection element, at least one pole is connected to a connecting element via a plug-and-socket connection, and at least one spring is located between the housing and the overvoltage limiting component such that, when the overvoltage limiting component is thermally overloaded, it is turned by the spring separating the at least one pole from the assigned connecting element, and creating a thermally separating connection between the overvoltage limiting component and the housing when the temperature of the overvoltage limiting component exceeds a given boundary temperature.
    Type: Application
    Filed: June 25, 2010
    Publication date: December 30, 2010
    Applicant: PHOENIX CONTACT GMBH & CO. KG
    Inventors: Christina GREWE, Andreas METZGER
  • Publication number: 20080218982
    Abstract: A surge protector includes a housing with connectors for passing through an electrical lead that is to be protected, whereby a surge voltage discharge device is located inside the housing and a mounting base for placement on a mounting rail is located on the outside of the housing. The mounting base on the housing exhibits a power surge proof discharge contact for contacting the mounting rail with the discharge contact being connected to the discharge connector of the surge protector. An attachment is connected in a removeable fashion to the mounting base which includes a contact component which contacts the discharge contact of the mounting base and is connected in an electrically conducting manner with a lead that exits the attachment.
    Type: Application
    Filed: February 22, 2008
    Publication date: September 11, 2008
    Applicant: Phoenix Contact GmbH & Co. KG
    Inventors: Ralf Hausmann, Frank Welzel, Christina Grewe
  • Patent number: D651978
    Type: Grant
    Filed: September 16, 2010
    Date of Patent: January 10, 2012
    Assignee: Phoenix Contact GmbH & Co. KG
    Inventors: Christian Depping, Joachim Wosgien, Christina Grewe
  • Patent number: D651979
    Type: Grant
    Filed: November 25, 2010
    Date of Patent: January 10, 2012
    Assignee: Phoenix Contact GmbH & Co. KG
    Inventors: Christian Depping, Joachim Wosgien, Christina Grewe