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:
Apr. 15, 2003
Filed:
Dec. 27, 2001
James Eric White, Amherst, NY (US);
Michael John Stanko, Grand Island, NY (US);
William Timothy Gleisle, Orchard Park, NY (US);
Victor Emmanuel Bergsten, East Amherst, NY (US);
Praxair Technology, Inc., Danbury, CT (US);
Abstract
A joint to connect a tubular ceramic element to a tubesheet. The joint has an internal seal housing to retain the tubular ceramic element and an external seal housing connected to the tubesheet to retain the internal seal housing. A ceramic-to-metal seal is located within the internal seal housing and a metal-to-metal seal is located between the internal seal housing and an external seal housing. The external seal housing is connected to the tubesheet. The internal seal housing is assembled in sections to allow assembly of the ceramic-to-metal seal to be assembled and tested prior to joining the tubular ceramic element to the tubesheet. After perfection of such seal, the internal seal housing and tubular ceramic element is inserted into the external seal housing and sealed within the external seal housing by the metal-to-metal seal.