Surgery – Respiratory method or device – Means for quickly connecting or disconnecting apparatus...
Patent
1982-03-15
1984-05-22
Recla, Henry J.
Surgery
Respiratory method or device
Means for quickly connecting or disconnecting apparatus...
12820426, 12820524, 12820418, A62B 704
Patent
active
044495242
ABSTRACT:
Self-contained breathing apparatus comprising a portable tank containing a supply of breathing air under high pressure, a main pressure regulator for reducing the pressure of air from the tank to a moderate level, a face mask having a demand valve mounted thereon which receives air from the main pressure regulator through a main supply hose and which controls the pressure and flow thereof to meet the users requirements, a bypass pressure regulator and flow control means which receives air from the tank and which controls the pressure and flow of air to the mask, through a separate bypass hose, to provide breathing air to the mask in the event of a fault in the main breathing circuit. The bypass hose is attached to the bypass pressure regulator and flow control by means of manually operable quick disconnect fitting, enabling emergency sharing of the air supply by a second, similarly equipped user.
REFERENCES:
patent: 2764151 (1956-09-01), Cupp
patent: 2854001 (1958-09-01), Humblet
patent: 3433222 (1969-03-01), Pinto
patent: 3995626 (1976-12-01), Pearce, Jr.
Litton Systems Inc.
Recla Henry J.
Ribando Brian L.
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