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:
Jun. 05, 2012
Filed:
Feb. 11, 2008
Applicant:
Craig A. Willkens, Sterling, MA (US);
Inventor:
Craig A. Willkens, Sterling, MA (US);
Assignee:
Coorstek, Inc., Golden, CO (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F23Q 7/22 (2006.01); B32B 3/00 (2006.01); H01B 1/04 (2006.01); H01C 7/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
Ceramic igniters are provided that comprise at least three zones of differing electrical resistance, preferably in sequence a first conductive zone of relatively low resistance, a power booster or enhancement zone of intermediate resistance, and a further hot or ignition zone of high resistance. Igniters of the invention can provide extremely high speeds (low time-to-temperature).