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:
Feb. 06, 2001
Filed:
Dec. 06, 1999
Asahi Glass Company Ltd., Tokyo, JP;
Abstract
A seal edge grinding method for a glass funnel, wherein a glass funnel seal edge and a grinding wheel are pressed against each other, and the seal edge is ground with the grinding wheel, comprising: moving a glass funnel and a grinding wheel by a certain quantity in an relatively approaching direction by a mobile unit under numerical control to grind a seal edge of the glass funnel with the grinding wheel by the use of feed controlled grinding; and relatively pressing the seal edge and the grinding wheel at a certain pressure by a pressing force of a pressing unit to grind the seal edge with the grinding wheel by the use of pressure controlled grinding after completion of the feed controlled grinding.