Patent ID: 9272453
Filing Date: 2016-03-01
CPC Classification: B29C

Claim Text:
1. A hot runner assembly for delivering molding material to a mold cavity of an injection molding machine, the mold cavity defined by a mold cavity insert, through a mold inlet defined in the mold cavity insert, comprising: a manifold plate; a nozzle extending through said manifold plate, said nozzle having a nozzle outlet; a gate pad insert having an inlet end with an inlet opening and an outlet end with a gate aperture and a passage through said gate pad insert from said inlet opening to said gate aperture, said gate pad insert removably attached to said manifold plate and removable from the mold cavity insert so that said nozzle is received in said passage and said nozzle outlet is in communication with said mold inlet through said gate aperture; a valve stem extending within said nozzle, movable between an extended position, in which said valve stem seals said gate aperture to prevent flow of molding material therethrough, and a retracted position.