Device for retaining abrasive pad on lap in eyeglass lens making apparatus
US6645059B1 · kind B1 · utility
2Cited by
8References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 1, 1999 |
| Grant date | Nov 11, 2003 |
| Priority date | — |
| Expiry date | Dec 1, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S451/921
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A retainer for retaining an abrasive pad on a lens making machine and an abrasive pad adapted to such retention comprises a retainer nestable with a lap of a lens making machine wherein when such retainer is nested, a pad placed upon said lap before nesting will be trapped in the desired position. The pad of the invention includes radially outwardly extending members beyond the working area of the pad whose purpose is to be trapped by the retainer. The invention enables automatic loading and unloading of pads on the lens making machine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.