The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 10, 2007
Filed:
Dec. 25, 2002
Masahiro Hiraka, Nara, JP;
Shigeo Furukawa, Osaka, JP;
Mitsuhiro Fujita, Kyoto, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
The apparatus for producing glass beads of the present invention comprises a melting potfor heating and melting glass, a nozzleA for dripping molten glassin the melting pot, which is disposed at the bottom of the melting pot, and a liquid glass droplet receiverfilled with cooling solutionfor cooling the liquid glass dropletdripped from the nozzleA, which is disposed under the nozzleA, wherein the cooling solutionis made from a material that forms a bubble layer around the liquid glass dropletas the cooling solutionis vaporized due to the heat of the liquid glass dropletduring a period when the liquid glass dropletis cooled down to a temperature lower than the glass transfer temperature in the cooling solution