Patent ID: 6557734
Filing Date: 2003-05-06
Classification: B29D,C09K,G02B,Y10S

Abstract:
A system for dispensing a heated polymerizable lens forming composition comprising:a body, the body being configured to hold the lens forming composition; a heating system coupled to the body for heating the monomer solution; a conduit coupled to the body for transferring the lens forming composition out of the body, the conduit comprising an inlet and an outlet, the inlet being positioned proximate the body, the outlet being positioned distal to the body; an elongated member positioned within the conduit, wherein the elongated member is positionable within the conduit in a closed position, wherein the elongated member in the closed position inhibits flow of the lens forming composition through the conduit, and wherein the elongated member is positionable within the conduit in an open position, wherein the elongated member in an open position allows flow of the lens forming composition through the conduit during use; an elastic member coupled to the elongated member, the elastic member being configured to exert a force on the elongated member such that the elongated member moves from the closed position to the open position during use; and a movable member coupled to the conduit and the elongated member, wherein the elongated member contacts the movable member at a first position such that the elongated member is in the closed position, and wherein the elongated member contacts the movable member at a second position such that the elongated member is in the open position, and wherein the movable member is movable such that contact between the movable member and the elongated member can be varied from the first position to the second position.