Chemical apparatus and process disinfecting – deodorizing – preser – Chemical reactor – Waste gas purifier
Reexamination Certificate
2005-06-02
2008-10-07
Caldarola, Glenn (Department: 1797)
Chemical apparatus and process disinfecting, deodorizing, preser
Chemical reactor
Waste gas purifier
C422S180000, C422S177000, C029S890000
Reexamination Certificate
active
07431896
ABSTRACT:
A thermally-activated exhaust treatment device, such as a catalytic converter, for vehicles includes a core having an inner housing and a catalytic material. A jacket includes an outer housing enclosing the inner housing, but characteristically not contacting the inner housing. The inner and outer housings include walls forming a vacuum-drawn sealed insulation cavity around the inner housing. A temperature-activated variable insulator device is positioned within the outer housing and includes a hydrogen source and controls for controlling the variable insulator device. A vacuum-maintenance device is incorporated into the insulation cavity, and includes a small container, getter material positioned in the container, and a porous member allowing gas in the insulation cavity to communicate with the getter material. A multi-layered radiation shield is positioned in the vacuum space and is loosely coupled to the inner housing. A vacuum detector includes a visible indicator of the vacuum in the insulation cavity.
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Benson David K.
Biel, Jr. John P.
Burch Steven D.
Hill, Jr. Frederick B.
Keyser Matthew A.
Benteler Automotive Corporation
Caldarola Glenn
Duong Tom
Price Heneveld Cooper DeWitt & Litton LLP
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