Surgery – Respiratory method or device – Combined with or convertible to a nonrespiratory device – or...
Patent
1987-05-11
1990-03-06
Hindenburg, Max
Surgery
Respiratory method or device
Combined with or convertible to a nonrespiratory device, or...
12820678, 12820712, A62B 700
Patent
active
049056840
ABSTRACT:
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.
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Letters and Newspaper Articles relating to instant invention.
Geor-Gina Fume Protection Devices Inc.
Hindenburg Max
Ljungman Nils H.
Reichle K. M.
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