Patents Represented by Attorney Shlesinger, Arkwright & Gravey LLP
  • Patent number: 7583455
    Abstract: An emergency vision device, comprises a collapsible tube made of airtight material and having an expanded form and a deflated stowage form; first and second clear members disposed at respective first and second ends of the tube to enable a user to see through the tube and observe a source of information at a distal end of the tube while smoke or other particulate matter is in the environment; and a portable gas cylinder having compressed clear gas and an outlet operably connected to the interior of the tube. The gas cylinder is operable to release the clear gas to fill the interior of the tube to expand the tube to the expanded form.
    Type: Grant
    Filed: March 18, 2005
    Date of Patent: September 1, 2009
    Inventor: Bertil R. L. Werjefelt