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US 2021/0284566 A1Published application
Glass tube production method
AssigneeNippon Electric Glass Co., Ltd.
InventorMasahiko SATO
Life of this patent
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Abstract
A method for manufacturing a glass tube is disclosed that includes the step of forming a through hole in a tube wall of a glass tube with two ends including a first end and a second end, each having an opening, near the first end. The method further includes the step of forming a sealed portion by performing thermal processing on a predetermined portion of the glass tube between the first end and the through hole after the formation of the through hole.
Claims5
A method for manufacturing a glass tube, the method comprising:
- forming a through hole in a tube wall of a glass tube with two ends including a first end and a second end, each having an opening, near the first end;
- and
- forming a sealed portion by performing thermal processing on a predetermined portion of the glass tube between the first end and the through hole after the formation of the through hole.
Dependencies are inferred from the claim text.