Gas separation: apparatus – With sound damping means – Sound attenuating gas flow path
Reexamination Certificate
2004-07-12
2008-12-30
Lawrence, Frank M (Department: 1797)
Gas separation: apparatus
With sound damping means
Sound attenuating gas flow path
C055S385300, C055SDIG030, C060S311000
Reexamination Certificate
active
07470312
ABSTRACT:
An arrangement is provided for an exhaust emission control device having a filter cartridge fitted through insertion into an inner shell of a muffler. The inner shell is formed to have an inner diameter greater than an outer diameter of a cartridge shell to provide an insertion clearance. The inner shell is formed with an inward, tapered portion gradually reduced in diameter toward a direction of insertion of the filter cartridge, with a portion of the inner shell inward of the tapered portion formed as a small-diameter portion having a reduced insertion clearance. Sealing and cushioning materials are fitted over the outer peripheral surface on an inward end of the cartridge shell and are adapted to be held in a clamped manner between the filter cartridge and the small-diameter portion of the inner shell upon fitting of the filter cartridge.
REFERENCES:
patent: 4032310 (1977-06-01), Ignoffo
patent: 4851015 (1989-07-01), Wagner et al.
patent: 4867768 (1989-09-01), Wagner et al.
patent: 4896503 (1990-01-01), Furlan
patent: 4899540 (1990-02-01), Wagner et al.
patent: 5009065 (1991-04-01), Howe et al.
patent: 5048287 (1991-09-01), Howe et al.
patent: 5792247 (1998-08-01), Gillingham et al.
patent: 2003-097248 (2003-04-01), None
patent: 2003-172119 (2003-06-01), None
patent: 2003-172121 (2003-06-01), None
Endou Hiroshi
Ohya Toshiki
Clemente Robert A
Hino Motors Ltd.
Lawrence Frank M
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
LandOfFree
Exhaust emission control device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Exhaust emission control device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Exhaust emission control device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4026043