B - Operations – Transporting – 29 – D
Patent
B - Operations, Transporting
29
D
B29D 11/00 (2006.01) B29C 33/20 (2006.01) B29C 33/22 (2006.01) B29C 43/08 (2006.01) B29C 43/32 (2006.01) B29C 43/58 (2006.01) B29C 33/36 (2006.01) B29C 45/76 (2006.01)
Patent
CA 2409354
Apparatus for clamping together contact lens molds having a polymerizable liquid monomer disposed therebetween includes a plurality of clamping assemblies (10) each having a linearly translatable shaft member (16) mounted to a contact lens curing table (200). A common mold clamp release assembly (100) is provided through which each mold clamping assembly (10) passes, thereby ensuring that each mold set (12) is subjected to the same clamping and release profile. Additionally, the amount of clamping force of each clamping assembly (10) may be individually adjusted by way of an adjustable nut (30) mounted to the shaft member (16) which, thereby, controls the amount of force delivered by the shaft member (16) to the contact lens molds (12) being clamped.
Cette invention a trait à un appareil permettant d'assembler des moules pour lentilles de contact renfermant un monomère liquide polymérisable. Cet appareil est pourvu de plusieurs ensembles d'assemblage, ayant chacun une tige, à déplacement linéaire, montée sur un plateau de durcissement de la lentille. L'appareil comporte également un ensemble d'assemblage/séparation de moule par lequel passe chaque ensemble d'assemblage de moule, ce qui garantit que chaque jeu de moules est soumis au même profil d'assemblage et de séparation. Il est, en outre, possible de régler individuellement la force d'assemblage de chaque ensemble d'assemblage au moyen d'un écrou réglable monté sur la tige, lequel régule la force qu'exerce cette tige sur les moules pour lentilles de contact, une fois ceux-ci assemblés.
Bausch & Lomb Incorporated
Osler Hoskin & Harcourt Llp
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