Ceramic igniter
AssigneeSaint-Gobain Corporation
InventorsSuresh Annavarapu, Thomas Sheridan
Life of this patent
Estimating the term…
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.
Claims17
A ceramic igniter having a rounded cross-sectional shape for at least a portion of the igniter length, the igniter comprising:
- in electrical sequence, a first conductive zone, a resistive hot zone, and a second conductive zone,
- wherein at least a substantial portion of the first conductive zone does not contact a ceramic insulator.
A ceramic igniter comprising:
- in electrical sequence, a first conductive zone, a resistive hot zone, and a second conductive zone,
- wherein the second conductive zone substantially encases the first conductive zone.
A ceramic igniter having a rounded cross-sectional shape for at least a portion of the igniter length, the igniter comprising:
- in electrical sequence, a first conductive zone, a resistive hot zone, and a second conductive zone, and the igniter is adapted for with lines voltages in excess of 24 volts.
Dependencies are inferred from the claim text.