Mold separation method and apparatus
US5850107A · kind A · utility
34Cited by
15References
51Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 10, 1994 |
| Grant date | Dec 15, 1998 |
| Priority date | — |
| Expiry date | Jun 10, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S425/808
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An apparatus for separating individual contact lens mold assemblies, the assemblies each being a front curve mold half and a back curve mold half, each mold half having annular circumferential flanges, is included. The apparatus includes a device for applying steam to the back curve mold half to form a temperature gradient from the front mold half to the back mold half. The apparatus also includes a second device to pry the mold halves apart.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.