Patent ID: 6068809
Filing Date: 2000-05-30
Classification: B29C

Abstract:
A method of injection molding elements comprising the steps of:(a) charging a molding compound into a bore of an injection nozzle via a side hole defined in the injection nozzle under the control of a mini-plunger which is selectively reciprocally movable within the bore of the injection nozzle;(b) reciprocally moving the mini-plunger in the bore of the nozzle for injecting substantially the entire molding compound in the bore of the injection nozzle into at least one cavity of a mold via a separate gate passage defined in the mold, where each gate passage is a narrow capillary aperture that connects the bore of the injection nozzle with a different one of the at least one cavity of the mold;(c) separating the nozzle and the mold after the molding compound in the gate passage is cured but before the molding compound in the at least one cavity of the mold is cured; and(d) removing the molded element from the at least one cavity of the mold once the molding compound therein is cured.