Patents by Inventor Andreas Mohrmann

Andreas Mohrmann 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: 7201877
    Abstract: A device for detecting sulfuryl fluoride, in which the gas specimen to be examined is subjected to pyrolysis with ensuing detection of a pyrolysis product, is to be improved for the sake of achieving a mobile, economical structure. To attain this object, in a preliminary tube (1) for pyrolysis, there is a chemical layer (5) of pyrophoric iron, and as an indicator system for the pyrolysis product, a test tube (2) for hydrogen fluoride is used.
    Type: Grant
    Filed: September 25, 2003
    Date of Patent: April 10, 2007
    Assignee: Dräger Safety AG & Co. KGaA
    Inventors: Holger Bohm, Silke Guga, Andreas Mohrmann, Armin Schulten, Bernd Siemensmeyer, Katja Stern, Bettina Runge
  • Publication number: 20040101967
    Abstract: A device for detecting sulfuryl fluoride, in which the gas specimen to be examined is subjected to pyrolysis with ensuing detection of a pyrolysis product, is to be improved for the sake of achieving a mobile, economical structure. To attain this object, in a preliminary tube (1) for pyrolysis, there is a chemical layer (5) of pyrophoric iron, and as an indicator system for the pyrolysis product, a test tube (2) for hydrogen fluoride is used.
    Type: Application
    Filed: September 25, 2003
    Publication date: May 27, 2004
    Applicant: Drager Safety AG & Co., KGaA
    Inventors: Holger Bohm, Silke Guga, Andreas Mohrmann, Armin Schulten, Bernd Siemensmeyer, Katja Stern, Bettina Runge
  • Patent number: 5849591
    Abstract: The invention is directed to a method for determining the portion of a gaseous or vaporous component in a gas mixture utilizing a detecting substance which can enter into a chemical reaction with the component to produce a coloration of the detecting substance and utilizing a device for evaluating the coloration. The method includes the steps of: passing the gas mixture at a constant volume flow through a channel containing the detecting substance; detecting a reflectance signal I(t) within a defined spatially fixed length segment of the channel; determining a slope .DELTA.I/.DELTA.t at the start of the chemical reaction during a time interval .DELTA.t in which the detecting substance is present in excess; determining a saturation reflectance signal I.sup.100% toward the end of the chemical reaction which corresponds to an almost complete chemical conversion of the detecting substance within the length segment; and, determining a normalized slope in correspondence to the formal relationship: .DELTA.I/(I.sup.
    Type: Grant
    Filed: May 13, 1997
    Date of Patent: December 15, 1998
    Assignee: Dragerwerk Aktiengesellschaft
    Inventors: Wolfgang Bather, Ingo Kaneblei, Matthias Martens, Andreas Mohrmann, Ingo Pooch