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:
Jul. 21, 2009
Filed:
Sep. 20, 2002
Halvor Øien, Porsgrunn, NO;
Leif Grønstad, Sannisdal, NO;
Øystein Nirisen, Brevik, NO;
Per Ivar Karlsen, Langangen, NO;
Magne Slåen, Skien, NO;
Halvor Øien, Porsgrunn, NO;
Leif Grønstad, Sannisdal, NO;
Øystein Nirisen, Brevik, NO;
Per Ivar Karlsen, Langangen, NO;
Magne Slåen, Skien, NO;
Yara International ASA, Oslo, NO;
Abstract
A support system for catalyst gauzes in an ammonia oxidation burner and a method of reducing movement of particulate ceramic material due to thermal dilatation includes the catalyst gauzes () and possibly support screens () being supported by ceramic fillings contained in a burner basket with metal walls and a perforated bottom plate. A 'wave breaker' () is fixed to the metal wall () and/or the outer part/periphery of the bottom plate ().