Glass manufacturing – Means drawing tube or rod stock from bath
Reexamination Certificate
2008-03-18
2008-03-18
Griffin, Steven P. (Department: 1791)
Glass manufacturing
Means drawing tube or rod stock from bath
C065S071000
Reexamination Certificate
active
10381620
ABSTRACT:
A device for the production of a glass rod is provided. The device has a Danner blowpipe constructed to avoid problems attributed to different heat expansion coefficients of the participating materials. The Danner blowpipe has an outer metal jacket surrounding a ceramic body and defines a supply end and a discharge end of the blowpipe. A clamping plate is provided at both the supply and discharge ends. The clamping plate on the discharge end is rigidly joined with a shaft and engages the outer metal jacket at the discharge end. The clamping plate on the supply end is joined in an axially displaceable manner on the shaft, which is rigidly joined with a pressure plate against displacement in an axial direction. A pressure spring is disposed between the pressure plate and the clamping plate on the supply end to urge the plates away from one another.
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Dick Erhard
Fischer Erich
Fuchs Roland
Münch Wolfgang
Rühl Robert
Carl-Zeiss-Stiftung
Dehghan Queenie
Griffin Steven P.
Ohlandt Greeley Ruggiero & Perle L.L.P.
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