Surgery – Respiratory method or device – Using liquified oxygen
Patent
1991-11-26
1994-08-23
Burr, Edgar S.
Surgery
Respiratory method or device
Using liquified oxygen
12820122, 12820129, A62B 706
Patent
active
053398068
ABSTRACT:
An individual protective equipment for use in a hostile environment comprises a closed suit including a flexible gas-tight garment and a helmet having a transparent visor and having a gas-tight connection with the garment. The equipment also includes a portable tank for storage of liquefied breathing gas and a heat exchanger having a primary circuit whose inlet is connected to an outlet of the storage tank and whose outlet feeds a breathing circuit. A gas motor is connected to receive a flow of breathing gas evaporated in the primary circuit and delivers the flow to the breathing circuit. A blower driven by the motor is inserted in a garment ventilation circuit including the secondary circuit of the exchanger.
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Soviet Inventions Illustrated, Section P, C27, Aug. 13, 1980, Derwent Publications Ltd, London, class P35, n.degree. F8905C/27 & SU-A-698625 (ODESSA REFRIG).
Beaussant Raymond
Frison Jacques
Schegerin Robert
Burr Edgar S.
Intertechnique
Lewis Aaron J.
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