Method and apparatus for making a pattern for a lens opening in an eyeglass frame
US4711035A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 8, 1987 |
| Grant date | Dec 8, 1987 |
| Priority date | — |
| Expiry date | Dec 8, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T409/300896
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method and apparatus for making a pattern from a blank in accordance with a set of coordinates defining a plurality of data points and collectively characterizing the size and shape of a lens opening in an eyeglass frame is presented. A controller includes an instruction set to control the operation of a router coupled to a carraige arranged for rectilinear movement toward and away from a work station and relative to the rotation of a blank fixtured at the work station whereby a pattern is cut with the desired size and shape. The apparatus further includes a sensor and light source in the feeding and staging area of the apparatus to advance a blank to a fixturing spindle located at the work station and to determine the nasal side orientation of the blank at the work station.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.