Fixing material delivery system for a blocking apparatus

Details Fixing material delivery system for a blocking apparatus Fixing material delivery system for a blocking apparatus

2008-03-04

2008-03-04

Tadesse, Yewebdar (Department: 1734)

Coating apparatus

Projection or spray type

Moving projector

C118S410000, C451S042000

Reexamination Certificate

active

10896230

ABSTRACT:
Blocking apparatus and a blocking method allow precise alignment of an axis of a button with an axis of a block for blocking process of lens manufacturing. According to another aspect, the invention provides a blocking apparatus and a blocking method for automatically compensating variations in a button geometry without requiring complex adjustments during blocking process of lens manufacturing. According to yet another aspect, the invention provides a button holder that may flexibly float on a seat stage of a blocking apparatus, where the button holder may include a mechanism to self-align on the seat stage after a block of the blocking apparatus interfaces with the button holder.

REFERENCES:
patent: 3752363 (1973-08-01), Fegley et al.
patent: 4434581 (1984-03-01), Spriggs
patent: 4502909 (1985-03-01), Tomesko

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