Surgery – Respiratory method or device – Means for supplying respiratory gas under positive pressure
Patent
1998-02-20
1999-06-15
Lewis, Aaron J.
Surgery
Respiratory method or device
Means for supplying respiratory gas under positive pressure
12820426, A62B 902
Patent
active
059112204
ABSTRACT:
A regulator for a self-contained breathing apparatus having a regulator body connected to a source of high pressure gas. An in-line valve within the regulator body is in communication with the source of high pressure gas. A primary burst disc is disposed within the in-line valve which is adapted to block the passage of gas from the source of pressurized gas when the gas is pressurized below a given pressure and to give way when the gas is pressurized above a given pressure when the in-line valve is closed. A first stage regulator is disposed within the regulator body for receipt of pressurized gas when the in-line valve is open. A demand regulator can be connected to the regulator body for receipt of regulated breathing gas from the first stage regulator. A conduit within the regulator body extends from the high pressure chamber to ambient and a burst disc is disposed within the conduit which will burst above a given gas pressure.
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patent: 5099835 (1992-03-01), Nelepka
patent: 5184609 (1993-02-01), Hart
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patent: 5343858 (1994-09-01), Winefordner et al.
patent: 5413096 (1995-05-01), Hart
patent: 5778875 (1998-07-01), Morgan et al.
Morgan Michael V.
Winefordner Carl
Bethel George F.
Bethel Patience K.
Lewis Aaron J.
U.S. Divers Co., Inc.
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