Patents by Inventor Bertil R. L. Werjefelt

Bertil R. L. Werjefelt 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: 11383847
    Abstract: An emergency vision apparatus comprises an inflatable enclosure to enable a user to see through the enclosure when expanded and observe a source of information at a distal end of the enclosure while smoke or other particulate matter is in the environment. The enclosure includes an opening configured for insertion of a user's hand into the interior of the enclosure to allow the user to operate a touch sensitive screen or hardware visible through the second clear member disposed toward a user and a sealable closure for closing the opening and sealing the opening around the user's hand. The sealable closure includes flexible first and second sheets covering the opening, the first and second sheets including respective first and second slits disposed transversely to each other, the first and second slits being configured to allow insertion of the user's hand into the interior of the enclosure.
    Type: Grant
    Filed: February 28, 2017
    Date of Patent: July 12, 2022
    Inventors: Bertil R. L. Werjefelt, Christian Werjefelt, Alexander K. Werjefelt
  • Patent number: 10215991
    Abstract: A hand-held emergency vision apparatus comprises an enclosed tubular structure having opposite first and second ends; first and second clear members disposed at respective the first and second ends; the structure including a plurality of tubular members retractable to a shorter length and extendable to one of several lengths, the tubular members are rigid and sealed from the outside air; and a filter operably associated with the tubular structure to filter the outside air such that when the tubular structure is extended from the compact form air the outside air is forced through the filter and clean air enters the tubular structure.
    Type: Grant
    Filed: December 23, 2016
    Date of Patent: February 26, 2019
    Inventors: Bertil R. L. Werjefelt, Christian Werjefelt, Alexander K. Werjefelt
  • Patent number: 9956440
    Abstract: An oxygen supply system for a station operator includes an oxygen cylinder; a mask operably connected to the oxygen cylinder; a pouch operably connected to the mask; carbon dioxide scrubber disposed inside the pouch; first one-way valve operably connected between the mask and the pouch for allowing one-way flow of gases exhaled by the operator from the mask to the pouch; and second one-way valve operably connected between the mask and the pouch for allowing one-way flow of gases from the pouch to the operator.
    Type: Grant
    Filed: January 12, 2015
    Date of Patent: May 1, 2018
    Inventor: Bertil R. L. Werjefelt
  • Patent number: 9914546
    Abstract: An emergency vision apparatus for providing an operator visual access to information during a smoke emergency, comprises an enclosure made of airtight material having spaced apart front and rear panels, the front panel being transparent, the front panel including fasteners for attachment to an instrument panel; an image capture device attached to said rear panel, the image capture device being oriented to view the instrument panel through the transparent front panel; an image viewing device for being disposed in front of one of the operator's eyes, the image viewing device being operably associated with the image capture device; and a support structure to support said viewing lens in front of one of the operator's eyes.
    Type: Grant
    Filed: September 10, 2008
    Date of Patent: March 13, 2018
    Inventors: Bertil R. L. Werjefelt, David Jenkins
  • Patent number: 9567103
    Abstract: A glare shield equipped with an emergency vision apparatus comprises a blower disposed within the glare shield; an inflatable first enclosure made of airtight material and having an expanded form when deployed and a deflated form when not in use; first and second clear members disposed at respective first and second ends of the inflatable first enclosure to enable a user to see through the inflatable first enclosure when expanded and observe a source of information at a distal end of the inflatable first enclosure while smoke or other particulate matter is in the environment; a switch operably associated with the blower to activate the blower and thereby inflate the inflatable first enclosure to the expanded form when the inflatable first enclosure is to be deployed; and a tubular passageway connecting the blower and the first enclosure.
    Type: Grant
    Filed: November 10, 2015
    Date of Patent: February 14, 2017
    Inventors: Bertil R. L. Werjefelt, Alexander K. Werjefelt, Christian Werjefelt
  • Patent number: 9329393
    Abstract: An emergency vision apparatus comprises an inflatable first enclosure, the first enclosure being made of airtight material and having an expanded form when deployed and a deflated form when not in use; and first and second clear members disposed at respective first and second ends of the first enclosure to enable a user to see through the first enclosure when expanded and observe a source of information at a distal end of the first enclosure while smoke or other particulate matter is in the environment. A touch sensitive screen is viewable through the first clear member. The first enclosure includes a closable opening configured for insertion of a user's hand to allow the user to operate the touch sensitive screen viewable through the first clear member; and a sealable closure for closing the opening and sealing the opening around the user's hand.
    Type: Grant
    Filed: April 21, 2014
    Date of Patent: May 3, 2016
    Inventors: Bertil R. L. Werjefelt, Alexander K. Werjefelt, Christian Werjefelt
  • Patent number: 9193477
    Abstract: A glare shield equipped with an emergency vision apparatus comprises a glare shield in a cockpit and a compartment recessed into the glare shield. A blower is disposed within the compartment. An inflatable first enclosure made of airtight material and having an expanded form when deployed and a deflated form when not in use is connected to the blower with a tubular air passageway. The first enclosure when in the deflated form is stored within the compartment. First and second clear members are disposed at respective first and second ends of the enclosure to enable a user to see through the first enclosure when expanded and observe a source of information at a distal end of the first enclosure while smoke or other particulate matter is in the environment. A switch operably is associated with the blower to activate the blower and thereby inflate the first enclosure when deployed.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: November 24, 2015
    Inventors: Bertil R. L. Werjefelt, Alexander K. Werjefelt, Christian Werjefelt
  • Patent number: 8888042
    Abstract: An emergency vision apparatus for providing an operator in a station visual access to information during a vision-obscuring emergency, comprises an expandable first enclosure filled with clear air, the first enclosure having front and rear transparent panels to allow an operator visual access through the first enclosure to a first source of information disposed in front of the front panel; an expandable second enclosure filled with clear air, the second enclosure having a rear panel and a transparent front panel for being disposed in proximity to a second source of information; a first camera disposed at the rear panel of the second enclosure, the camera being directed toward the front panel to image the second source of information through the second enclosure front panel; and a first display operably connected to the camera, the display being operably associated with the first enclosure to be visible to the operator through the first enclosure rear panel.
    Type: Grant
    Filed: May 6, 2008
    Date of Patent: November 18, 2014
    Inventor: Bertil R. L. Werjefelt
  • Patent number: 8705189
    Abstract: An emergency vision apparatus comprises an inflatable first enclosure, the first enclosure being made of airtight material and having an expanded form when deployed and a deflated form when not in use; and first and second clear members disposed at respective first and second ends of the first enclosure to enable a user to see through the first enclosure when expanded and observe a source of information at a distal end of the first enclosure while smoke or other particulate matter is in the environment. The first enclosure includes a closable opening configured for insertion of a user's hand to allow the user to operate a touch sensitive screen or hardware disposed in front of the first clear member; and a sealable closure for closing the opening and sealing the opening around the user's hand.
    Type: Grant
    Filed: October 31, 2011
    Date of Patent: April 22, 2014
    Inventors: Bertil R. L. Werjefelt, Alexander K. Werjefelt, Christian Werjefelt
  • Patent number: 8573514
    Abstract: A smoke evacuation device comprises a nozzle for connection to a source of clean air supply, the nozzle being adapted to vent clean air supply in all available directions in space therefrom to provide a volume of space with clean air in the proximity of the nozzle, thereby providing visibility and breathable air to the user. The nozzle is adapted to minimize entrainment of the surrounding smoke into the volume.
    Type: Grant
    Filed: September 8, 2003
    Date of Patent: November 5, 2013
    Inventor: Bertil R. L. Werjefelt
  • Patent number: 8453969
    Abstract: A glare shield equipped with an emergency vision apparatus comprises a glare shield in a cockpit and a compartment recessed into the glare shield. A blower is disposed within the compartment. An inflatable first enclosure made of airtight material and having an expanded form when deployed and a deflated form when not in use is connected to the blower with a tubular air passageway. The first enclosure when in the deflated form is stored within the compartment. First and second clear members are disposed at respective first and second ends of the enclosure to enable a user to see through the first enclosure when expanded and observe a source of information at a distal end of the first enclosure while smoke or other particulate matter is in the environment. A switch operably is associated with the blower to activate the blower and thereby inflate the first enclosure when deployed.
    Type: Grant
    Filed: June 22, 2011
    Date of Patent: June 4, 2013
    Inventors: Bertil R. L. Werjefelt, Alexander K. Werjefelt, Christian Werjefelt
  • Publication number: 20130107388
    Abstract: An emergency vision apparatus comprises an inflatable first enclosure, the first enclosure being made of airtight material and having an expanded form when deployed and a deflated form when not in use; and first and second clear members disposed at respective first and second ends of the first enclosure to enable a user to see through the first enclosure when expanded and observe a source of information at a distal end of the first enclosure while smoke or other particulate matter is in the environment. The first enclosure includes a closable opening configured for insertion of a user's hand to allow the user to operate a touch sensitive screen or hardware disposed in front of the first clear member; and a sealable closure for closing the opening and sealing the opening around the user's hand.
    Type: Application
    Filed: October 31, 2011
    Publication date: May 2, 2013
    Inventors: Bertil R. L. Werjefelt, Alexander K. Werjefelt, Christian Werjefelt
  • Patent number: 8411382
    Abstract: The present invention provides an emergency vision apparatus, comprising a blower; an inflatable enclosure remote from the blower, the enclosure being made of airtight material and having an expanded form when deployed and a deflated form when not in use; first and second clear members disposed at respective first and second ends of the enclosure to enable a user to see through the enclosure when expanded and observe a source of information at a distal end of the enclosure while smoke or other particulate matter is in the environment; a switch operably associated with the blower to activate the blower and thereby inflate the enclosure when deployed; and an air passageway connecting the blower and the enclosure, the passageway being extendible from a shorter length to a longer length when the enclosure is deployed.
    Type: Grant
    Filed: July 23, 2009
    Date of Patent: April 2, 2013
    Inventor: Bertil R. L. Werjefelt
  • Patent number: 8213101
    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: August 26, 2009
    Date of Patent: July 3, 2012
    Inventor: Bertil R. L. Werjefelt
  • Publication number: 20110019297
    Abstract: The present invention provides an emergency vision apparatus, comprising a blower; an inflatable enclosure remote from the blower, the enclosure being made of airtight material and having an expanded form when deployed and a deflated form when not in use; first and second clear members disposed at respective first and second ends of the enclosure to enable a user to see through the enclosure when expanded and observe a source of information at a distal end of the enclosure while smoke or other particulate matter is in the environment; a switch operably associated with the blower to activate the blower and thereby inflate the enclosure when deployed; and an air passageway connecting the blower and the enclosure, the passageway being extendible from a shorter length to a longer length when the enclosure is deployed.
    Type: Application
    Filed: July 23, 2009
    Publication date: January 27, 2011
    Inventor: Bertil R. L. Werjefelt
  • Publication number: 20090279196
    Abstract: An emergency vision apparatus for providing an operator in a station visual access to information during a vision-obscuring emergency, comprises an expandable first enclosure filled with clear air, the first enclosure having front and rear transparent panels to allow an operator visual access through the first enclosure to a first source of information disposed in front of the front panel; an expandable second enclosure filled with clear air, the second enclosure having a rear panel and a transparent front panel for being disposed in proximity to a second source of information; a first camera disposed at the rear panel of the second enclosure, the camera being directed toward the front panel to image the second source of information through the second enclosure front panel; and a first display operably connected to the camera, the display being operably associated with the first enclosure to be visible to the operator through the first enclosure rear panel.
    Type: Application
    Filed: May 6, 2008
    Publication date: November 12, 2009
    Inventor: Bertil R. L. Werjefelt
  • 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
  • Patent number: 6645064
    Abstract: A smoke evacuation device comprises a nozzle for connection to a source of clean air supply, the nozzle being adapted to vent clean air supply in all available directions in space therefrom to provide a volume of space with clean air in the proximity of the nozzle, thereby providing visibility and breathable air to the user. The nozzle is adapted to minimize entrainment of the surrounding smoke into the volume.
    Type: Grant
    Filed: July 8, 2002
    Date of Patent: November 11, 2003
    Inventor: Bertil R. L. Werjefelt
  • Patent number: 6460804
    Abstract: An emergency supplementary vision device comprises a collapsible tube made of airtight material and having an expanded form and a compact stowed form; first and second clear members disposed at respective first and second ends of the tube to enable the user to see through said tube and observe a source of information at the other end while smoke or other particulate matter is in the environment; and a filter operably associated with the tube to filter the ambient atmosphere and fill the interior of said tube with clear air when said tube is expanded to its expanded form.
    Type: Grant
    Filed: January 26, 2001
    Date of Patent: October 8, 2002
    Inventor: Bertil R. L. Werjefelt
  • Patent number: 6082673
    Abstract: An emergency vision device for use in a smoke emergency to enable a user to look through a windshield or view an instrument, comprises a housing; an inflatable enclosure having a first end for being disposed toward a user, a second end for being disposed toward the windshield or the instrument, the inflatable enclosure being stored within the housing when not in use, the first and second ends having first and second transparent panels, respectively, such that visual information from beyond the windshield or from the instrument is transmitted through the second panel to the user through the first panel; a blower operably connected to the inflatable enclosure adapted to inflate the enclosure; a first switch for operating the blower; and a member operably connected to the inflatable enclosure and the first switch such that the switch is activated when the inflatable enclosure is removed from the housing.
    Type: Grant
    Filed: March 24, 1999
    Date of Patent: July 4, 2000
    Inventor: Bertil R. L. Werjefelt