Device for retaining abrasive pad on lap in eyeglass lens making apparatus
US6561886B2 · kind B2 · utility
6Cited by
13References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 19, 2000 |
| Grant date | May 13, 2003 |
| Priority date | — |
| Expiry date | Dec 19, 2020 |
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 the 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.