초록 ▼

A fume protection device which allows a person within a room of a smoke filled building to breathe air from outside the building is disclosed. The fume protection device is comprised of a conduit in an exterior building wall in communication with outside air, having a sealing valve adapted to seal t

A fume protection device which allows a person within a room of a smoke filled building to breathe air from outside the building is disclosed. The fume protection device is comprised of a conduit in an exterior building wall in communication with outside air, having a sealing valve adapted to seal the conduit from the passage of air except when activated, so as to maintain pressure differences between the interior of the building and the exterior thereof under ordinary conditions, and one or more breathing masks and tubes, the tubes being connected at one end to an inlet port of a mask and having at another end a coupling jack being adapted to connect to the conduit and upon connection to open the sealing valve to establish communication between the outside air and the interior of the breathing mask through the conduit and the tube, and, at the same time, to establish an electrical circuit to supply electricity from a self-contained power source to a number of variously located emergency warning or other lights.

대표청구항 ▼

Breathing apparatus for providing outside air to at least one person in a room of a building including an exterior wall comprising: conduit means having first and second ends, adapted to extend directly through the exterior wall of the building for establishing direct communication between the room

Breathing apparatus for providing outside air to at least one person in a room of a building including an exterior wall comprising: conduit means having first and second ends, adapted to extend directly through the exterior wall of the building for establishing direct communication between the room of the building at the first end and the outside air at the second end; valve means in said conduit means for normally preventing the outside air from passing through said conduit means into the room; at least one breathing mask having an air supply tube said air supply tube having one end connected to said mask and an opposite, free end; coupling means for operatively connecting the free end of said air supply tube to the first end of said conduit means; said coupling means including means for opening said valve means upon said connecting of said air supply tube and said conduit means to permit the supplying of the outside air through said conduit means and said air supply tube into said mask and said mask including means for selectively permitting the person to breathe the outside air supplied by said air supply tube and to exhale exhaust air into the room.