First stage regulator and rotatable in-line valve

Details First stage regulator and rotatable in-line valve First stage regulator and rotatable in-line valve

1996-05-06

1998-07-14

Lewis, Aaron J.

Surgery

Respiratory method or device

Means for supplying respiratory gas under positive pressure

12820524, A61M 1600

Patent

active

057788758

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.

REFERENCES:
patent: 1348708 (1920-08-01), Garland
patent: 2383961 (1945-09-01), Freygang
patent: 2524052 (1950-10-01), Grant, Jr.
patent: 4724833 (1988-02-01), Bartos
patent: 4928686 (1990-05-01), Nelepka
patent: 5099835 (1992-03-01), Nelepka
patent: 5184609 (1993-02-01), Hart
patent: 5209224 (1993-05-01), Nelpka
patent: 5343858 (1994-09-01), Winefordner et al.
patent: 5368022 (1994-11-01), Wagner
patent: 5413096 (1995-05-01), Hart

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