Multi-blade router tool, edger with multi-blade router tool, and method of edging eyeglass lenses
US7198436B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 14, 2004 |
| Grant date | Apr 3, 2007 |
| Priority date | — |
| Expiry date | Oct 14, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T409/307784
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a router tool for edging the peripheral edge of eyeglass lenses. The tool comprises a longitudinally extending body rotatable on the axis thereof. A first blade extends axially and radially from the body, and has a first cutting portion for shaping an edge of a lens to a first configuration. A second blade is provided that is axially spaced from the first blade. The second blade extends axially and radially from the body, and has a second cutting portion for shaping an edge of a lens to a second configuration different than the first configuration. The present invention also relates to an edger having the disclosed router tool, and a method for shaping the edge of eyeglass lenses.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.