Combination router-end mill cutter tool, edger with combination tool, and method of edging eyeglass lenses
US7029378B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 14, 2004 |
| Grant date | Apr 18, 2006 |
| Priority date | — |
| Expiry date | Oct 14, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T408/353
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a tool for shaping and polishing an edge of an eyeglass lens. The tool includes a longitudinally extending body rotatable on the axis thereof, with a proximal portion and a distal portion. A first cutter extends axially and radially from the distal portion, and includes a first blade for shaping an edge of a lens. The distal portion has a first diameter defined by the first blade. A polishing hub is secured to and extends coaxially from the distal portion and is rotatable therewith. A second cutter is secured to and extends coaxially from the polishing hub and is rotatable therewith. The second cutter has a second blade for shaping the edge of the lens. The second blade defines a second diameter less than the first diameter. The present invention also relates to an edger having the disclosed tool, and a method of edging.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.