다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.NTIS 바로가기
다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.DataON 바로가기
다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.Edison 바로가기
다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.Kafe 바로가기
|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||65/13 ; 65/2 ; 277/237A|
|발명자 / 주소||
|출원인 / 주소||
|인용정보||피인용 횟수 : 1 인용 특허 : 0|
A heating apparatus for drawing a glass rod having a tapered portion coupled, at its upper end, with a feed bar of an outside diameter smaller than that of the glass rod, including an apparatus housing into which the glass rod is inserted, a first sealing cover which is formed with a bore having such a dimension as to seal a clearance between the glass rod and the bore and is hermetically mounted on an inlet opening of the apparatus housing and a second sealing cover which is movably attached to the feed bar and is formed with an aperture having such a d...
A heating apparatus for drawing a glass rod, comprising: an apparatus housing having an inlet opening, into which said glass rod is axially downwardly inserted from said inlet opening; said glass rod having a tapered portion formed at its upper end portion such that a diameter of said tapered portion decreases in an upward direction of said glass rod; said tapered portion being coupled, at its upper end, with a feed bar for feeding said glass rod into said apparatus housing; said glass rod having an outside diameter larger than that of said feed bar; a f...