B - Operations – Transporting – 05 – D
Patent
B - Operations, Transporting
05
D
117/81
B05D 7/02 (2006.01) B05D 5/00 (2006.01) B29D 11/00 (2006.01) C23C 14/50 (2006.01) G02B 1/10 (2006.01)
Patent
CA 1090207
SUPPORT RACK FOR VACUUM COATING OF OPHATALMIC LENSES AND METHOD OF CLEANING SAME Abstract of the Disclosure A lens or substrate supporting structure having formed therein a plurality of seats arranged to releasably receive said substrate, said substrate support structure being uniformly covered with a solvent soluble polymer such as polyethylene oxide, the polymer including a small amount of dyestuff. After use of the support structure, it is placed in a suitable solvent and the solvent soluble polymer is removed. The aye is an indication of the complete coating and then complete removal of the polymer.
284559
Carmelite Donald D.
Chang Leei
American Optical Corporation
Macrae & Co.
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