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Japanese Inventors Develop Molten Glass Conduit
- Article from:
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US Fed News Service, Including US State News
- Article date:
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June 19, 2008
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ALEXANDRIA, Va., June 19 -- Naruaki Tomita, Yasuharu Hirahara, Kazuo Hamashima and Koji Obayashi, all from Yokohama, Japan, have developed a conduit for molten glass.
An abstract of the invention, released by the U.S. Patent & Trademark Office, said: "The present invention provides a metal conduit for molten glass and a vacuum degassing apparatus are disclosed, which are capable of coping with extension and contraction, and vibration. By disposing at least one convex portion so to have a height of four millimeter or above in a radial direction and continuously extend in a peripheral direction, it is possible to absorb thermal expansion and contraction without changing the entire length ...
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