Emergency breathing air supply system and apparatus

Details Emergency breathing air supply system and apparatus Emergency breathing air supply system and apparatus

1981-12-02

1984-08-28

Recla, Henry J.

Surgery

Respiratory method or device

Combined with or convertible to a nonrespiratory device, or...

12820525, 12820024, A62B 700

Patent

active

044677960

ABSTRACT:
Fresh air is circulated to rooms of a highrise building during an emergency, such as a fire, from a source of compressed air located outside the building. Air is passed through insulated pipes to breathing units located in the rooms. Each breathing unit contains a plurality of extendable masks for placing over the user's nose and mouth, precluding inhalation of smoke and fumes in the room. A preferred valving arrangement permits fresh air to be drawn from the pressurized air source or from outside the building immediately adjacent the room.

REFERENCES:
patent: 472163 (1892-04-01), Duffy
patent: 1005196 (1911-10-01), Gold et al.
patent: 2299793 (1942-10-01), Cannaday et al.
patent: 3073301 (1963-01-01), Hay et al.
patent: 4165738 (1979-08-01), Graves et al.
patent: 4331139 (1982-05-01), Popa
patent: 4373522 (1983-02-01), Zien

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