Saint-gobain/norton Industrial Ceramics Corporation

Saint-gobain Ceramics & Plastics, Inc.

Norton Company

Saint-gobain Industrial Ceramics, Inc.

Saint-gobain Centre De Recherches Et D'etudes Europeen

Coorstek, Inc.

Craig A Willkens

Linda S Bateman

Roger J Lin

Normand P Arsenault

Vimal K Pujari

Russell Lee Yeckley

Normand D Corbin

Norman I Paille, Jr

Kevin C Solofra

Dennis M Tracey

Lenny C Sales

Michael R Foley

Thomas J Sheridan

Paul J Pelletier

Dean Croucher

James Olson

Ajay K Garg

Sébastien Bardon

Scott M Hamel

Robert A Hay

James M Olson

Stephen D Hartline

Brian J Caprera

Arsenault, Normand P

Linda S Batemen

Francis A Jurnak

Sebastien R Bardon

Sebastien Bardon

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).

Ceramic igniters

Ceramic igniter compositions are provided that contain components of conductive material and insulating material, where the insulating material component includes a relatively high concentration of metal oxide. Ceramic igniters of the invention are particularly effective for high voltage use, including throughout the range of from about 187 to 264 volts.

Compositions for ceramic igniters

A particulate filter for purifying exhaust gases of an internal combustion engine, in particular of a diesel engine, comprises a filtering body and heating elements for initiating combustion of soot particles accumulated on and in the filtering body. The heating elements comprise at least a hot spot ceramic ignitor (). The invention is applicable in the automotive industry.

Particulate filter for purifying exhaust gases of internal combustion engines comprising hot spot ceramic ignitors

This invention relates to an aging resistant SiC igniter having a second layer of recrystallized SiC within the body.

Aging resistant, porous silicon Carbide ceramic igniter

The present invention relates to ceramic igniter devices, and more particularly, to such devices that contain two or more segregated hot zone regions that are electrically connected such as in series or in parallel. These devices are suitably incorporated in a variety of devices, including diesel fuel filters.

Multiple hot zone igniters

Aging resistant porous silicon carbide ceramic igniter

Ceramic igniters are provided that comprise two cold zones with an interposed hot zone, the hot zone having an electrical path length of from 0.51 cm to about 2 cm. Igniters of the invention can effectively diffuse power density throughout the igniter hot zone region, without producing isolated temperature gradients which can lead to premature igniter degradation and failure. The invention also provides new methods for forming ceramic igniters.

Ceramic igniters and methods for using and producing same

This invention relates to a support zone for a hairpin-style ceramic igniter, the support zone comprising AlN and SiC, and preferably alumina.

Ceramic igniter having improved oxidation resistance, and method of

This invention relates to the use of a continuously energized ceramic igniter in providing a 'relight' function in stovetop cooking applications.

Method of heating a stovetop range using a continuously energized

The present invention relates a ceramic igniter comprising:

Method of heating a stovetop range using a ceramic igniter

High voltage ceramic igniter

A ceramic igniter comprises a pair of conductive ends, a hot zone disposed between the conductive ends, the hot zone having a density of at least about 95% of theoretical density and a composition comprising: (a) between about 50 and about 80 vol % of an electrically insulating material selected from the group consisting of aluminum nitride, boron nitride, silicon nitride, and mixtures thereof. (b) between about 10 and about 45 vol % of a semiconductive material selected from the group consisting of silicon carbide and boron carbide, and (c) between about 5 and about 25 vol % of a metallic conductor selected from the group consisting of molybdenum disilicide, tungsten disilicide, titanium nitride, and mixtures thereof, and a support upon which the hot zone is disposed, wherein at least a portion of the hot zone has a thickness of no more than 0.019'.

Ceramic igniter with hot zone thickness of 0.019 inches or less

Match head ceramic igniter and method of using same

Growing community of inventors

Sterling, MA, United States of America

Craig A Willkens