Exhaust-gas purifying apparatus

Details Exhaust-gas purifying apparatus Exhaust-gas purifying apparatus

2003-09-08

2008-05-20

Caldarola, Glenn (Department: 1797)

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

Waste gas purifier

Reexamination Certificate

active

07374727

ABSTRACT:
An exhaust-gas purifying apparatus includes an outer cylinder, a plurality of cylinder-shaped supports, and a catalytic layer. The cylinder-shaped supports are disposed in the outer cylinder, and have an outer peripheral surface and an inner peripheral surface. At least two of the neighboring cylinder-shaped supports contact with each other with the outer peripheral surfaces. The catalytic layer is loaded on at least one of the outer peripheral surface and inner peripheral surface of the cylinder-shaped supports. At least one of the cylinder-shaped supports has a ring-shaped cross-section with a cut-off, and is disposed in the outer cylinder in such an elastically deformed state that it expands in the centrifugal direction. Thus, the exhaust-gas purifying apparatus not only shows a high exhaust-gas purifying ability, but also is good in terms of the assemblage easiness. Moreover, the exhaust-gas purifying apparatus exhibits improved misfire resistance.

REFERENCES:
patent: 4203502 (1980-05-01), Strader
patent: 4402662 (1983-09-01), Pfefferle
patent: 5780386 (1998-07-01), Usui
patent: 1 374 301 (1974-11-01), None
patent: 6-343876 (1994-12-01), None
patent: A 9-228832 (1997-09-01), None
patent: A 9-317452 (1997-12-01), None
patent: WO 94/13937 (1994-06-01), None
patent: WO 99/64732 (1999-12-01), None

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