Gas separation – Two or more separators
Reexamination Certificate
1999-02-26
2001-01-30
Simmons, David A. (Department: 1724)
Gas separation
Two or more separators
C055S486000, C055S502000, C055S503000, C055S521000
Reexamination Certificate
active
06179890
ABSTRACT:
FIELD OF THE INVENTION
This disclosure describes air cleaners for engines and methods. In particular, this disclosure describes an air cleaner having a straight-through flow, sealing system, resonator, and methods for servicing and use.
BACKGROUND OF THE INVENTION
Gas streams often carry particulate material therein. In many instances, it is desirable to remove some or all of the particulate material from a gas flow stream. For example, air intake streams to engines for motorized vehicles or other motorized equipment often include particulate material therein. The particulate material, should it reach the internal workings of the various mechanisms involved, can cause substantial damage thereto. It is therefore preferred, for such systems, to remove the particulate material from the gas flow upstream of the engine or other equipment involved. A variety of air filter or gas filter arrangements have been developed for particulate removal. In general, however, continued improvements are sought.
SUMMARY OF THE DISCLOSURE
This disclosure concerns, in one embodiment, an air cleaner including a housing having first and second opposite ends. Preferably, the housing defines an inlet adjacent to the first end and an outlet adjacent to the second end. A media pack is preferably oriented within the interior volume of the housing. In preferred embodiments, the media pack will have a first and second opposite flow face and be constructed and arranged for air to flow into the media pack through the first flow face, and for air to exit the media pack through the second flow face. The air cleaner will include a seal member forming a seal between the media pack and the housing. In preferred constructions, a secondary filter element is oriented within the interior volume of the housing.
In some preferred embodiments, the housing is constructed and arranged as a resonator.
Certain preferred embodiments will include seal constructions that engage the secondary filter element to help hold the secondary filter element axially within the housing.
Methods of filtering systems, servicing filtration systems, and constructing filter arrangements and housings are described herein. Preferred methods will use filter elements and constructions as characterized above.
REFERENCES:
patent: D. 416308 (1999-11-01), Ward et al.
patent: 3019854 (1962-02-01), O'Bryant
patent: 3025963 (1962-03-01), Bauer
patent: 3209917 (1965-10-01), Yelinek
patent: 3442067 (1969-05-01), Swenson
patent: 3676242 (1972-07-01), Prentice
patent: 3740933 (1973-06-01), Hollowell
patent: 3807150 (1974-04-01), Maracle
patent: 3841953 (1974-10-01), Lohkamp et al.
patent: 3849241 (1974-11-01), Butin et al.
patent: 3878014 (1975-04-01), Melead
patent: 3912631 (1975-10-01), Turman
patent: 4065341 (1977-12-01), Cub
patent: 4310419 (1982-01-01), Nara et al.
patent: 4322231 (1982-03-01), Hilzendeger et al.
patent: 4402830 (1983-09-01), Pall
patent: 4449993 (1984-05-01), Bergeron
patent: 4578091 (1986-03-01), Borja
patent: 4720292 (1988-01-01), Engel et al.
patent: 4759783 (1988-07-01), Machado
patent: 4824564 (1989-04-01), Edwards et al.
patent: 4925561 (1990-05-01), Ishii et al.
patent: 4999038 (1991-03-01), Lundberg
patent: 5049326 (1991-09-01), Matsumoto et al.
patent: 5174895 (1992-12-01), Drori
patent: 5238474 (1993-08-01), Kahlbaugh et al.
patent: 5304312 (1994-04-01), Forster et al.
patent: 5350515 (1994-09-01), Stark et al.
patent: 5415677 (1995-05-01), Ager et al.
patent: 5435870 (1995-07-01), Takagaki et al.
patent: 5484466 (1996-01-01), Brown et al.
patent: 5487767 (1996-01-01), Brown
patent: 5543007 (1996-08-01), Takagaki et al.
patent: 5547480 (1996-08-01), Coulonvaux
patent: 5582146 (1996-12-01), Linsbauer et al.
patent: 5613992 (1997-03-01), Engel
patent: 5672399 (1997-09-01), Kahlbaugh et al.
patent: 5685985 (1997-11-01), Brown et al.
patent: 5714126 (1998-02-01), Frund
patent: 5730766 (1998-03-01), Clements
patent: 5755843 (1998-05-01), Sundquist
patent: 5792247 (1998-08-01), Gillingham et al.
patent: 5800587 (1998-09-01), Kahlbaugh et al.
patent: 5820646 (1998-10-01), Gillingham et al.
patent: 5863313 (1999-01-01), Coulonvaux
patent: 5895574 (1999-04-01), Friedmann et al.
patent: 5897676 (1999-04-01), Engel et al.
patent: 5908480 (1999-06-01), Ban et al.
patent: B1 4720292 (1991-09-01), Engel et al.
patent: 997684 (1976-09-01), None
patent: 2155522 (1973-05-01), None
patent: 0 738 528 A2 (1996-10-01), None
patent: WO 88/03431 (1988-05-01), None
patent: WO 99/47237 (1999-09-01), None
Bishop Wayne R. W.
Finnerty Carolyn J.
Gieseke Steven Scott
Ramos Timothy M.
Steinbrueck Edward A.
Donaldson & Company, Inc.
Hopkins Robert A.
Merchant & Gould P.C.
Simmons David A.
LandOfFree
Air cleaner having sealing arrangement between media... 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 cleaner having sealing arrangement between media..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Air cleaner having sealing arrangement between media... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2488091