Surgery – Respiratory method or device – Means for supplying respiratory gas under positive pressure
Patent
1997-10-14
2000-02-08
Weiss, John G.
Surgery
Respiratory method or device
Means for supplying respiratory gas under positive pressure
12820127, 12820128, 12820524, A63C 1102, A62B 1810, A62B 902, A61M 1600
Patent
active
060217782
ABSTRACT:
Regulator for underwater breathing apparatus, comprising a box-like body containing the device that regulates the admission of air from the first reducing stage, fitted with a mouthpiece through which the air is inhaled and an outlet through which the exhaled air is discharged, the air-regulating device comprising a chamber in which the regulating valve is located and chamber that communicates with the surrounding water, the chambers being separated by a diaphragm that controls the regulating valve, with the chamber that communicates with the surrounding water being delimited by the diaphragm and by a wall provided with plurality of a apertures; the apertures are provided with a grid-like element that break up the flow of fluid through the latter.
REFERENCES:
patent: 2441216 (1948-05-01), Wiggins
patent: 3054414 (1962-09-01), Blackwell
patent: 4219017 (1980-08-01), Shamlian et al.
patent: 5501213 (1996-03-01), Jackson
patent: 5503142 (1996-04-01), Semeia
Fattibene Arthur T.
Fattibene Paul A.
HTM Sport S.p.A.
Martin Todd M.
Weiss John G.
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