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:
Mar. 09, 2010
Filed:
Oct. 28, 2005
Applicants:
Suresh Annavarapu, Somerville, MA (US);
Thomas J. Sheridan, Oakham, MA (US);
Inventors:
Suresh Annavarapu, Somerville, MA (US);
Thomas J. Sheridan, Oakham, MA (US);
Assignee:
Saint-Gobain Ceramics & Plastics, Inc., Worcester, MA (US);
Primary Examiner:
Int. Cl.
CPC ...
F23Q 7/22 (2006.01); F23Q 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
New ceramic resistive igniter elements are provided that comprise a first conductive zone, a resistive hot zone, and a second conductive zone, all in electrical sequence. In preferred igniters, at least a substantial portion of the first conductive zone does not contact a ceramic insulator. Preferred igniters of the invention have a rounded cross-sectional shape for at least a portion of the igniter length.