Patents by Inventor Gustav Stigsohn

Gustav Stigsohn 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).

  • Fire detection system
    Patent number: 9974991
    Abstract: The present invention relates to a fire detection system arranged for detecting fire by detecting a pressure drop in a detection conduit (15) caused by rupture of the detection conduit (15). The system comprises a detection fluid container (13) for holding a pressurized detection fluid, the detection conduit (15) which is connected to the detection fluid container (13), and a valve assembly controlling the supply of detection fluid from the detection fluid container (13) to the detection conduit (15).
    Type: Grant
    Filed: October 17, 2013
    Date of Patent: May 22, 2018
    Assignee: Fogmaker International AB
    Inventors: Johnny Ernfjäll, Gustav Stigsohn
  • FIRE DETECTION SYSTEM
    Publication number: 20150283415
    Abstract: The present invention relates to a fire detection system arranged for detecting fire by detecting a pressure drop in a detection conduit (15) caused by rupture of the detection conduit (15). The system comprises a detection fluid container (13) for holding a pressurized detection fluid, the detection conduit (15) which is connected to the detection fluid container (13), and a valve assembly controlling the supply of detection fluid from the detection fluid container (13) to the detection conduit (15).
    Type: Application
    Filed: October 17, 2013
    Publication date: October 8, 2015
    Applicant: Fogmaker International AB
    Inventors: Johnny Ernfjäll, Gustav Stigsohn