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:
Oct. 14, 2003
Filed:
Mar. 14, 2000
Marc Bremont, Jouy en Josas Cedex, FR;
Karin Tynelius-Diez, Jouy en Josas Cedex, FR;
Nicolas Perrin, Champigny sur Marne Cedex, FR;
Philippe Queille, Paris, FR;
Joël Pierre, Champigny sur Marne Cedex, FR;
Michel Poteau, Champigny sur Marne Cedex, FR;
Abstract
Provided is a novel regenerative heat exchanger and a method for heating a gas in the heat exchanger. The regenerative heat exchanger features a chamber separated into a plurality of annular concentric spaces, including: a first, inner annular space defining a hot collection chamber; a second, outer annular space concentric to and around the first space defining a cold collection chamber; and a third annular space defining a heat exchange zone concentric to and between the first and second spaces. The heat exchange zone contains a particulate heat transfer material. The third space is supported on the inside by a concentrically disposed hot grid, and the external diameter of the third annular space is less than about double the internal diameter of the third annular space. The invention has particular applicability to the feeding of hot blast to a blast furnace in the iron making industry.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile