Respiratory air filter

Gas separation: apparatus – Electric field separation apparatus – Including gas flow distribution means

Reexamination Certificate

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Details

C055SDIG033, C055SDIG035, C055SDIG042, C096S069000, C128S206120, C128S206180, C128S206190

Reexamination Certificate

active

07101423

ABSTRACT:
A respiratory filter includes an air-permeable sleeve and at least one filter layer that is arranged in the sleeve and contains activated carbon. The activated carbon contained in the filter layers serves as a gas filter that, by absorption, at least partially removes the noxious gases that are contained in the air inhaled.

REFERENCES:
patent: 2572254 (1951-10-01), Folberth
patent: 3316904 (1967-05-01), Wall et al.
patent: 3451392 (1969-06-01), Cook et al.
patent: 3971373 (1976-07-01), Braun
patent: 4100324 (1978-07-01), Anderson et al.
patent: 4240420 (1980-12-01), Riaboy
patent: 4382440 (1983-05-01), Kapp et al.
patent: 4429001 (1984-01-01), Kolpin et al.
patent: 4600002 (1986-07-01), Maryyanek et al.
patent: 4643182 (1987-02-01), Klein
patent: 4883052 (1989-11-01), Weiss et al.
patent: 4992084 (1991-02-01), Von Blucher et al.
patent: 5275154 (1994-01-01), Von Blucher et al.
patent: 5284704 (1994-02-01), Kochesky et al.
patent: 5400780 (1995-03-01), Nishino
patent: 5452712 (1995-09-01), Richardson
patent: 5593479 (1997-01-01), Frey et al.
patent: 5656368 (1997-08-01), Braun et al.
patent: 5667562 (1997-09-01), Midkiff
patent: 6102039 (2000-08-01), Springett et al.
patent: 6214094 (2001-04-01), Rousseau et al.
patent: 6296691 (2001-10-01), Gidumal
patent: 6332465 (2001-12-01), Xue et al.
patent: 6357440 (2002-03-01), Hansen et al.
patent: 6432175 (2002-08-01), Jones et al.
patent: 6527834 (2003-03-01), Jorder et al.
patent: 6543450 (2003-04-01), Flynn
patent: 2001/0013347 (2001-08-01), Rekow et al.
patent: 339487 (1989-11-01), None
patent: 2028664 (1980-03-01), None
patent: 54-162277 (1979-12-01), None

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