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:
May. 12, 2015
Filed:
Dec. 28, 2012
General Electric Company, Schenectady, NY (US);
Michael Colan Moscinski, Niskayuna, NY (US);
Reza Sarrafi-Nour, Niskayuna, NY (US);
Badri Narayan Ramamurthi, Niskayuna, NY (US);
Mohandas Nayak, Bangalore, IN;
Darren Michael Stohr, Niskayuna, NY (US);
Sundeep Kumar, Bangalore, IN;
Mohamed Rahmane, Niskayuna, NY (US);
Arunabh Basak, Bangalore, IN;
Raghavendra Rao Adharapurapu, Niskayuna, NY (US);
General Electric Company, Niskayuna, NY (US);
Abstract
The present application provides for ceramic collars and metal rings for active brazing in sodium-based thermal batteries. The ceramic collar may be an alpha-alumina collar configured for active brazing, and thereby sealing, to outer and inner Ni rings for use in NaMx cells. The portions of the alpha-alumina collar active brazed to the outer and inner Ni rings may be outwardly facing and include inwardly extending recesses. The portions of the outer and inner Ni rings active brazed to the outwardly facing portions of the collar may be inwardly facing. The alpha-alumina collar may include a greater coefficient of thermal expansion than each of the outer and inner Ni rings, and the alpha-alumina collar and outer and inner Ni rings may be configured such that a portion of the outer and inner Ni rings is deformed into the inwardly extending recesses of the alpha-alumina collar after active brazing thereof.