Nitrojection Corporation

Sajar Plastics, Inc.

Joe L Johnson

Richard T Seman

An apparatus for use in gas-assisted injection molding of plastic material so as to form an injection molded product includes a pair of mold members defining, when closed, a sealed cavity. A first opening is provided in one of the mold members for allowing the injection of a plastic material into the mold cavity and a second opening is provided in one of the mold members, and spaced from the first opening. A sleeve extends through the second opening. A probe extends through the sleeve and is adapted to be reciprocated therein from a retracted position to an extended position. The probe includes a first end adapted to selectively extend into the cavity, a second end and a longitudinally extending bore which terminates adjacent the second end. A reciprocating device is provided for reciprocating the probe in the sleeve held in the second opening of the one mold member in relation to the cavity.

Apparatus for producing a fluid-assisted injection molded product

A nozzle for injecting a viscous fluid, such as a molten plastic and a non-viscous fluid, such as a gas, includes a nozzle body having an inlet end, a discharge end and a flow passage for viscous fluid extending from the inlet end to the discharge end. A shut off valve device is provided for reciprocating in the nozzle body flow passage to control the flow of viscous fluid through the nozzle body discharge end. The shut off valve device includes a valve body and a non-viscous fluid flow passage provided in the valve body. A baffle device is located in the non-viscous fluid flow passage of the shut off valve for retarding a flow of viscous fluid in the non-viscous flow passage.

Growing community of inventors

Middlefield, OH, United States of America

Joe L Johnson