Gas separation: processes – With control responsive to sensed condition – Concentration sensed
Reexamination Certificate
2005-07-05
2005-07-05
Spitzer, Robert H. (Department: 1724)
Gas separation: processes
With control responsive to sensed condition
Concentration sensed
C095S069000, C095S070000, C095S090000, C095S287000, C096S055000, C096S134000, C096S417000, C055S309000, C055S318000, C055S422000, C055S471000, C055S481000
Reexamination Certificate
active
06913637
ABSTRACT:
An air purifier includes a main body defining an air passage therein to allow sucked air to pass therethrough prior to being discharged, and a first filter installed in the main body to be switched between a closed state and an open state. The first filter removes contaminants from the sucked air in the closed state, and allows the sucked air to pass through the air passage in the open state. The air purifier may include a main body to suck and discharge air, with a bypass passage formed in the main body so that the bypass passage is opened or closed by a door, and a first filter installed in the main body. The sucked air passes through the first filter prior to being discharged when the door is closed, and passes through the bypass passage prior to being discharged when the door is opened.
REFERENCES:
patent: 1816836 (1931-08-01), Gagen
patent: 1824891 (1931-09-01), Hill
patent: 3353551 (1967-11-01), Smale
patent: 4312645 (1982-01-01), Mavros et al.
patent: 4671810 (1987-06-01), Dietzsch et al.
patent: 4698078 (1987-10-01), Mavros
patent: 4749385 (1988-06-01), Brunner et al.
patent: 4833753 (1989-05-01), Muller
patent: 4854950 (1989-08-01), Kierzkowski et al.
patent: 4963170 (1990-10-01), Weber et al.
patent: H895 (1991-03-01), Weber
patent: 5015451 (1991-05-01), Holter et al.
patent: 5147428 (1992-09-01), Elliot
patent: 5505768 (1996-04-01), Altadonna
patent: 5558158 (1996-09-01), Elmore
patent: 5647889 (1997-07-01), Stueble
patent: 5683495 (1997-11-01), Derx
patent: 6421238 (2002-07-01), Negishi
patent: 6623544 (2003-09-01), Kaura
patent: 2002/0144601 (2002-10-01), Palestro et al.
patent: 1019981074906 (1998-11-01), None
LandOfFree
Air purifier does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Air purifier, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Air purifier will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3378236