Patent · US Active

Variable reference blocking apparatus and method of use

US10569379B2 · kind B2 · utility

0Cited by

3References

15Claims

0Family size

Assignee

Essilor International · FR

Inventors

James D. Monaghan · Salem, US
Bruce C. Taylor · Kent, US
Brad Gelb · Dallas, US

Key dates

Filing date	Dec 30, 2014
Grant date	Feb 25, 2020
Priority date	—
Expiry date	May 5, 2036

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB24B13/0052
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

Described is a variable reference blocking apparatus for blocking an optical article (5). The apparatus comprises an adjustable ring unit (11) having a plurality of concentric members (19,19c,19i) positioned about a central axis. Each concentric member (19,19c,19i) generally comprises a lip region (17) on its upper end that is capable of receiving at least a portion of a front face of the optical article (5). The apparatus further comprises a moveable base (13) in which its upper portion is coupled with a removable insert (7). The removable insert (7) is generally positioned to be centered about the front face of the optical article (5).

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