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US 10,882,777 B2Granted
Adjustable fume tube burner
AssigneeCorning Incorporated
InventorsJames Henry Faler, Dale Robert Powers, Fei Xia, Chunfeng Zhou
Life of this patent
Estimating the term…
Abstract
A method of forming an optical fiber preform includes the steps: igniting a burner having a fume tube assembly to produce a first spray size of silicon dioxide particles; depositing the silicon dioxide particles on a core cane to produce a soot blank; and adjusting an effective diameter of an aperture of the fume tube assembly to produce a second spray size of the silicon dioxide particles. The second spray size is larger than the first spray size.
Claims13
A burner, comprising:
- a back block;
- a face block defining a plurality of gas emitting regions;
- a fume tube assembly extending through and separate from the face block and surrounded by the gas emitting regions, wherein the fume tube assembly comprises:
- a first fume tube coupled to the face block;
- a second fume tube positioned within the first fume tube;
- and
- an aperture defined at an end of the fume tube assembly;
- and
- an actuator coupled with the second fume tube and configured to move the second fume tube within the first fume tube to adjust an effective diameter of the aperture.
6 more elements
A burner, comprising:
- a face block defining a plurality of gas emitting regions;
- a fume tube assembly extending through and separate from the face block and surrounded by the gas emitting regions, wherein the fume tube assembly comprises:
- a first fume tube;
- a second fume tube movably positioned within the first tube and defining an exterior surface, wherein the exterior surface is tapered;
- and
- an aperture defined at an end of the fume tube assembly;
- and
- an actuator coupled with the second fume tube and configured to move the second fume tube within the first fume tube to variably adjust an effective diameter of the aperture.
5 more elements
Dependencies are inferred from the claim text.