Patent · US Active

Polishing disc for a tool for fine processing of optically effective surfaces on spectacle lenses

US10569387B2 · kind B2 · utility

2Cited by

8References

20Claims

0Family size

Assignee

Satisloh AG · CH

Inventors

Peter Philipps · Mengerskirchen, DE
Andreas Kaufmann · Hohenahr, DE
Steffen Wallendorf · Heuchelheim, DE
Holger Schäfer · Hachenburg, DE

Key dates

Filing date	Sep 16, 2015
Grant date	Feb 25, 2020
Priority date	—
Expiry date	Nov 18, 2035

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB24D9/003
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

The invention relates to a polishing disc for a tool for fine processing optically active surfaces on spectacle lenses, having a main body which has a central axis and to which an intermediate layer that is softer than the main body and is made of a resilient material is secured, a polishing medium carrier resting on the intermediate layer. The intermediate layer has at least two regions with different degrees of hardness, said regions being arranged one behind the other in the direction of the central axis of the main body. The intermediate layer region adjoining the main part is softer than the intermediate layer region on which the polishing medium carrier rests.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.