Re-forming tubes or rods

Full Title

Re-forming shaped glass > Re-forming tubes or rods

Classification Context

Section:

CHEMISTRY; METALLURGY

Class:

GLASS; MINERAL OR SLAG WOOL

Subclass:

MANUFACTURE OR SHAPING OF GLASS, OR OF MINERAL OR SLAG WOOL; SUPPLEMENTARY PROCESSES IN THE MANUFACTURE OR SHAPING OF GLASS, OR OF MINERAL OR SLAG WOOL

Child Classifications

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• C03B 23/043 Heating devices specially adapted for re-forming tubes or rods in general, e.g. burners
• C03B 23/045 Tools or apparatus specially adapted for re-forming tubes or rods in general, e.g. glass lathes, chucks
• C03B 23/047 by drawing
• C03B 23/049 by pressing
• C03B 23/051 by gravity, e.g. sagging
• C03B 23/053 by centrifuging
• C03B 23/055 by rolling
• C03B 23/057 by fusing, e.g. for flame sealing
• C03B 23/06 by bending
• C03B 23/07 by blowing, e.g. for making electric bulbs
• C03B 23/08 to exact dimensions, e.g. calibrating
• C03B 23/09 Reshaping the ends, e.g. as grooves, threads or mouths
• C03B 23/11 Reshaping by drawing without blowing, in combination with separating, e.g. for making ampoules
• C03B 23/13 Reshaping combined with uniting or heat sealing, e.g. making vacuum bottles