|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||065/157; 118/693; 118/715; 118/726; 137/209; 137/211|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 19 인용 특허 : 2|
A device is disclosed for supplying a glass raw material gas in the form of the mixed gas consisting of the glass raw material gas and the carrier gas to a vapor deposition device for producing a preform of an optical fiber, the supply device including a secondary raw material container having a pressurizable interior and provided adjacent to a main raw material container. The bottoms, or areas near the bottoms, of the two containers are interconnected via a pipe including at a mid portion thereof a switching valve and a device for adjusting the flow rat...
1. A raw material supply device for supplying a glass-forming raw material gas in the form of a mixed gas consisting of said glass-forming raw material gas and a carrier gas to a vapor deposition device for producing a preform of an optical fiber, the supply device comprising: a pressurized main raw material container having means for supplying said glass-forming gas as said mixed gas from said main raw material container to said vapor deposition device for producing a preform, a secondary raw material container having a pressurizable interior and means ...