Device for producing a glass rod

Details Device for producing a glass rod Device for producing a glass rod

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

07343761

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.

REFERENCES:
patent: 2402924 (1946-06-01), Snyder
patent: 2429220 (1947-10-01), Danner
patent: 2972837 (1961-02-01), Pinotti
patent: 3136658 (1964-06-01), Richards
patent: 3236619 (1966-02-01), Frye et al.
patent: 3360354 (1967-12-01), Bates
patent: 3364004 (1968-01-01), Cozine et al.
patent: 5080705 (1992-01-01), Ott et al.
patent: 6274525 (2001-08-01), Zborowski et al.
patent: 2112692 (1972-09-01), None
patent: 3516920 (1985-11-01), None
patent: 198 03 327 (1999-12-01), None
patent: 19960211 (2001-07-01), None
patent: 04209722 (1992-07-01), None
patent: 09328324 (1997-12-01), None
patent: 11322350 (1999-11-01), None
patent: 04209722 (1992-07-01), None
patent: 09328324 (1997-12-01), None
patent: 11322350 (1999-11-01), None

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