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:
Aug. 21, 2001
Filed:
Aug. 04, 1999
Atsuhiro Doke, Kasugai, JP;
Seiichi Ichikawa, Kakamigahara, JP;
Menicon Co., Ltd., Nagoya-Shi, JP;
Abstract
Mold assembly for forming a lens blank for an ophthalmic lens, wherein upper and lower tapered inner surfaces of intermediate sleeve are adapted to be held in press-fitting engagement with respective outer surfaces of upper and lower molds, to effect fluid-tight connection of the upper and lower molds with the intermediate sleeve, with the upper mold being held in abutting contact with a shoulder of the intermediate sleeve, and with stopper surfaces of the intermediate and lower molds being held in abutting contact with each other to determine a relative axial position therebetween, such that a mold cavity to be filled with a liquid monomer composition is defined by the upper and lower molds and the intermediate sleeve, while a liquid reservoir for storing an excess amount of the monomer composition which has been discharged from the mold cavity is defined by the upper mold and the intermediate mold.