Surgery – Respiratory method or device – Means for removing substance from respiratory gas
Patent
1995-05-03
1997-01-14
Millin, V.
Surgery
Respiratory method or device
Means for removing substance from respiratory gas
12820612, 12820615, 12820712, 12820525, A62B 710
Patent
active
055929354
ABSTRACT:
A positive
egative air pressure adaptor for a respirator system. The positive
egative air pressure adaptor has a port region for fluidically coupling a filter cartridge to a respirator. The adaptor has an inlet port for connecting to a positive pressure air source and a first check valve to restrict the flow of air from the port region to the filter cartridge. A second check valve may be provided to restrict the flow of air from the respirator to the port region. When the positive pressure air source is disconnected, the respirator system operates as a negative pressure respirator.
REFERENCES:
patent: 2348277 (1944-05-01), Boothby et al.
patent: 2438058 (1948-03-01), Kincheloe
patent: 2775968 (1957-01-01), Polli et al.
patent: 3202150 (1965-08-01), Miller
patent: 4233972 (1980-11-01), Hauff et al.
patent: 4331141 (1982-05-01), Pokhis
patent: 4433684 (1984-02-01), Sarnoff et al.
patent: 4494538 (1985-01-01), Ansite
patent: 4502480 (1985-03-01), Yamamoto
patent: 4522639 (1985-06-01), Ansite et al.
patent: 4537748 (1985-08-01), Billiet
patent: 4590951 (1986-05-01), O'Connor
patent: 4625721 (1986-12-01), Levine
patent: 4646732 (1987-03-01), Chien
patent: 4653493 (1987-03-01), Hoppough
patent: 4674492 (1987-06-01), Niemeyer
patent: 4850346 (1989-07-01), Michel et al.
patent: 4886056 (1989-12-01), Simpson
patent: 4991577 (1991-02-01), Shigematsu
patent: 5007421 (1991-04-01), Stewart
patent: 5054481 (1991-10-01), Shin
patent: 5062421 (1991-11-01), Burns et al.
patent: 5086768 (1992-02-01), Niemeyer
patent: 5303701 (1994-04-01), Heins et al.
patent: 5318019 (1994-06-01), Celaya
patent: 5318020 (1994-06-01), Schegerin
patent: 5394867 (1995-03-01), Swann
Elstran Gerald V.
Mattila Robert J.
Phillips Jerome D.
Griswold Gary L.
Kirn Walter N.
Millin V.
Minnesota Mining and Manufacturing Company
Raciti Eric P.
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