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US 4,726,763 AGranted
Dual insulated ceramic burner
AssigneeGTE Products Corporation
InventorRay L. Newman
Life of this patent
Estimating the term…
Abstract
A gas burner comprises a ceramic tube or nozzle through which a gaseous fuel flows, a chamber surrounding the ceramic tube, and means for delivering preheated combustion air to the chamber. The tube is made of an insulating ceramic in order to insulate the fuel from the preheated air. The inner portion of the tube comprises an insulating ceramic having lower thermal conductivity than that of the outer portion.
Claims7
A gas burner comprising:
- an inlet tube for delivery of a gaseous fuel therethrough, said tube being made of an insulating ceramic, said tube having a tip at the exit end thereof, said tube having an inner wall and an outer wall, said inner wall comprising a first ceramic material and said outer wall comprising a second ceramic material, said first ceramic material having substantially lower thermal conductivity than said second ceramic material;
- a chamber surrounding said tube;
- and means for delivering preheated combustion air into said chamber rearward of said tip.
Dependencies are inferred from the claim text.