The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 25, 1994
Filed:
Jul. 19, 1991
Applicant:
Inventor:
Hermann Rittler, Corning, NY (US);
Assignee:
Corning Incorporated, Corning, NY (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
422179 ; 422171 ; 422177 ; 422181 ; 422222 ;
Abstract
A refractory body assembly includes a refractory container, a refractory body having multiple gas passageways and positioned within the container, and a barrier layer in the intermediate space. The barrier layer is a rigid foam which, in a basic form, may be composed essentially of a crystalline aluminum phosphate, and may be produced by heating a mixture of a source of phosphorous, an organic liquid buffer and a source of aluminum. The assembly may further include a positioning ring for positioning and maintaining the refractory body in a central position until the barrier layer becomes rigid.