Method for making mold core
US8245608B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 7, 2010 |
| Grant date | Aug 21, 2012 |
| Priority date | — |
| Expiry date | Feb 24, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T82/2502
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method for making a mold core for molding lenses of optical fiber connector, is provided. The method includes: providing a first fixture and a mold block, the first fixture defining a first cavity therein, a center of the first fixture located within the first cavity and deviated from a center of the first cavity; providing a lathe comprising a rotatable spindle and a drill bit aligning with the rotatable spindle; installing the blank in the first cavity of the first fixture, and mounting the first fixture to the spindle; machining a first mold cavity in the blank using the drill bit; reinstalling the blank in the first cavity by revolving the blank 180 degrees; and machining a second mold cavity in the blank using the drill bit, thereby obtaining a mold core having the first and the second mold cavities.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.