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:
Jan. 10, 2012
Filed:
Mar. 18, 2004
Yoshinori Iguchi, Fussa, JP;
Katsumi Utsugi, Tachikawa, JP;
Atsushi Uezaki, Oume, JP;
Junichi Watanabe, Hachioji, JP;
Tetsuya Saito, Hamura, JP;
Akira Murakami, Akiruno, JP;
Yoshinori Iguchi, Fussa, JP;
Katsumi Utsugi, Tachikawa, JP;
Atsushi Uezaki, Oume, JP;
Junichi Watanabe, Hachioji, JP;
Tetsuya Saito, Hamura, JP;
Akira Murakami, Akiruno, JP;
Hoya Corporation, Tokyo, JP;
Abstract
A method of manufacturing high-quality preforms from glass melt, manufacturing glass elements, such as lenses, by press molding these preforms and, manufacturing optical elements by reheating and press molding these glass gobs. In the method glass gobs are continuously separated from a glass melt flow continuously flowing out of a nozzle and the separated glass gobs are formed with glass forming members that are intermittently or continuously moving. A support member is made to approach the front end of the nozzle, the front end of the glass melt flow is received by the support member, and the support member is dropped more rapidly than the rate of flow of the glass melt flow to separate a glass gob from the glass melt flow. The separated glass gob is transferred from the support member to a stopped or moving glass forming member to mold a glass article.