Metal working – Method of mechanical manufacture – Catalytic device making
Reexamination Certificate
2004-12-20
2010-06-29
Chang, Rick K (Department: 3726)
Metal working
Method of mechanical manufacture
Catalytic device making
C029S527100, C029S527200, C228S165000, C228S181000, C422S180000, C502S101000, C502S439000
Reexamination Certificate
active
07743499
ABSTRACT:
A method to produce a catalytic bed is initiated by forming apertures in a predetermined pattern on a strip or segment of thin foil. A pattern of desired channels is formed into the apertured foil, for example, as a herringbone pattern. The patterned foil is heat treated, and the surfaces of the foil are provided with at least one washcoat and at least one catalyzed coat, and cured. Cured foil in strip form is rolled into a multi-layer coil, or cured foil in segment form is stacked in multiple segment layers, to produce a desired geometric shape of the catalytic bed. The channels between layers of foil are offset in each successive layer to preclude channel nesting. The offset channels and apertures provide turbulent longitudinal and radial flow of a desired material throughout the catalytic bed.
REFERENCES:
patent: 4567630 (1986-02-01), Ishida et al.
patent: 4847966 (1989-07-01), Kuchelmeister
patent: 5394610 (1995-03-01), Stoephasius et al.
patent: 5406704 (1995-04-01), Retallick
patent: 5436216 (1995-07-01), Toyao et al.
patent: 5437099 (1995-08-01), Retallick et al.
patent: 5516383 (1996-05-01), Jha et al.
patent: 5628928 (1997-05-01), Rolf
patent: 5657923 (1997-08-01), Sheller
patent: 5791044 (1998-08-01), Whittenberger et al.
patent: 5852274 (1998-12-01), Watanabe et al.
patent: 5985220 (1999-11-01), Hughes
patent: 6329139 (2001-12-01), Nova et al.
patent: 7141812 (2006-11-01), Appleby et al.
patent: 7223373 (2007-05-01), Maude
patent: 7235218 (2007-06-01), Bowe
patent: 7300635 (2007-11-01), Bowe et al.
patent: 2003/0083196 (2003-05-01), Korotkikh et al.
patent: 2003/0235272 (2003-12-01), Appleby et al.
patent: 2005/0042151 (2005-02-01), Alward et al.
patent: 2006/0130327 (2006-06-01), Pettit et al.
patent: 2007/0207186 (2007-09-01), Scanlon et al.
patent: 2008/0073600 (2008-03-01), Appleby et al.
Pettit William H
Voecks Gerald E
Chang Rick K
GM Global Technology Operations Inc.
Harness & Dickey & Pierce P.L.C.
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