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:
Aug. 10, 2004
Filed:
Jun. 13, 2003
Applicant:
Inventors:
John S. Reid, Wooster, OH (US);
Thomas Szymanski, Hudson, OH (US);
Karen C. Beal, Peninsula, OH (US);
Assignee:
Saint-Gobain Ceramics & Plastics, Inc., Stow, OH (US);
Primary Examiner:
Int. Cl.
CPC ...
C04B 3/514 ;
U.S. Cl.
CPC ...
C04B 3/514 ;
Abstract
Ceramic mass and thermal transfer media suitable for use in thermal regenerative oxidizers made using a mixture of a ball clay, talc and optionally a dolomitic limestone have enhanced resistance to environments containing halogens and hydrogen halides. The media preferably comprises less than 0.25% by weight of alkali metal, expressed as the oxide, and has a cordierite: silica phase ratio of less than 1.2:1, as determined by X-ray diffraction.