Surgery – Respiratory method or device – Means for supplying respiratory gas under positive pressure
Patent
1981-02-06
1982-08-24
Recla, Henry J.
Surgery
Respiratory method or device
Means for supplying respiratory gas under positive pressure
12820524, 137DIG9, 137498, 137462, A62B 704
Patent
active
043455930
ABSTRACT:
A face mask is connected to a source of breathing fluid through a pressure-demand regulator and a supply line. The regulator admits breathing fluid to the mask on demand and maintains a positive pressure within the mask at all times to prevent inflow from the surrounding atmosphere. The regulator has a flow capacity considerably greater than that normally required, even when gasping or breathing heavily. An automatic shut-off device in the supply line upstream of the regulator permits the peak flow of a predetermined breathing requirement but is responsive to abnormal flow conditions, as for example where the mask is removed from the wearer, to close the supply line and thereby prevent wasting of the air breathing fluid supply. The apparatus can be manually reset to normal operation and will reset itself after the mask is repositioned on the wearer.
REFERENCES:
patent: 374485 (1887-12-01), McGann
patent: 2406888 (1946-09-01), Meidenbauer, Jr.
patent: 2623725 (1952-12-01), Sands
patent: 2699799 (1955-01-01), Wager
patent: 2970602 (1961-02-01), Cupp
patent: 3085589 (1963-04-01), Sands
patent: 3122162 (1964-02-01), Sands
patent: 3189027 (1965-06-01), Bartlett, Jr.
patent: 3724482 (1973-04-01), Ekstrom
patent: 3756272 (1973-09-01), Hammond
patent: 4049016 (1977-09-01), Henry
patent: 4140112 (1979-02-01), Kobzan
patent: 4188971 (1980-02-01), Otteson
patent: 4274404 (1981-06-01), Molzan et al.
A-T-O Inc.
Recla Henry J.
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