MOLD FOR FORMING A CONTACT LENS AND METHOD OF PREVENTING FORMATION OF SMALL STRANDS OF CONTACT LENS MATERIAL DURING CONTACT LENS MANUFACTURE

This invention provides a mold (21) for forming a contact lens including an overflow collector (38), which causes the overflow reactive mixture (23) to be accumulated, and not to spread out as it would upon the typically flat surfa ce of a prior art mold. The invention further provides a method of p...

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Bibliographische Detailangaben
Hauptverfasser:	ANSELL, SCOTT FREDERICK, KREBSBACH, GERALD ROBERT, WINDEY, JAN ALBERT MARIA, CROWE, CARL G., JR, SMITH, ROBERT MACDONALD, FOLEY, KENNETH W., JR
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING CONTACT LENSES INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES OPTICS PERFORMING OPERATIONS PHYSICS PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS SPECTACLES SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURESAS SPECTACLES TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	This invention provides a mold (21) for forming a contact lens including an overflow collector (38), which causes the overflow reactive mixture (23) to be accumulated, and not to spread out as it would upon the typically flat surfa ce of a prior art mold. The invention further provides a method of preventing t he formation of contaminating pieces of overflow reactive mixture by preventing the overflow reactive mixture from spreading out on the mold (21).