1
Robert D Schad: Method of operating a two-shot injection-molding machine. Husky Injection Molding Systems, Karl F Ross, April 24, 1984: US04444711 (135 worldwide citation)

There is disclosed a method of operating an injection-molding machine to produce a composite item that includes a portion of soft material such as a set of bristles tending to cling to a mold cavity in which it is formed. At a first station, a relatively flexible plastic material is injected into a ...


2
Robert D Schad, Paul P Brown: Coinjection of hollow articles and preforms. Husky Injection Molding Systems, Bachman & LaPointe, January 5, 1988: US04717324 (89 worldwide citation)

Apparatus for coinjecting a plurality of thermoplastic materials to mold an article having a layered wall structure using thermoplastic material having different optimum processing temperatures including the maintenance of the optimum temperatures in flow paths individual to each material from its s ...


3
Herbert Rees, Robert D Schad: Actuating mechanism for gate valve of injection nozzle. Husky Injection Molding Systems, Karl F Ross, November 6, 1979: US04173448 (78 worldwide citation)

An injection gate of a mold cavity comprises an elongate valve rod which passes axially through a flow channel for molten plastic material and is guided in an extension of a thin-walled steel cylinder open at its opposite end toward an adjoining manifold plate. The rod extremity remote from the gate ...


4
Robert D Schad: Hot runner manifold for injection molding machine. Husky Injection Molding Systems, Bachman & LaPointe, May 13, 1986: US04588367 (65 worldwide citation)

A pressure molding machine of the type having a floating manifold including thermal expansion support elements for sealing and centering the nozzles relative to the floating manifold.


5
Herbert Rees, Robert D Schad: Actuating mechanism for gate valve of injection nozzle. Husky Injection Molding Systems, Karl F Ross, May 19, 1981: US04268240 (58 worldwide citation)

An injection gate of a mold cavity comprises an elongate valve rod which passes axially through a flow channel for molten plastic material and is guided in an extension of a thin-walled steel cylinder open at its opposite end toward an adjoining manifold plate. The rod extremity remote from the gate ...


6
Robert D Schad, Herbert Rees, Gary Hughes, John R Murchie: Carrying means for holding and cooling a parison. Husky Injection Molding Systems, Bachman & LaPointe, March 8, 1988: US04729732 (54 worldwide citation)

The apparatus of the present invention involves transferring plastic parisons from a receiving station to a finishing station on a plurality of pallets in a single row for forming said parisons into hollow plastic articles. The pallets with parisons thereon are transported through a temperature cond ...


7
Herbert Rees, Robert D Schad: Heated injection nozzle. Husky Injection Molding Systems, Karl F Ross, May 19, 1981: US04268241 (51 worldwide citation)

A nozzle for the injection of liquefied plastic material into the gate of a mold cavity has a tubular metallic body forming a sprue, the outer surface of this body being in contact with an annular heater in the shape of a closed shell whose interior is filled with a matrix of compacted MgO powder ha ...


8
Robert D Schad, John Pocock: Swing plate molding machine. Husky Injection Molding System, Bachman & LaPointe, June 6, 1989: US04836767 (48 worldwide citation)

The present invention relates to an apparatus for producing molded plastic articles which is capable of simultaneously producing and cooling the plastic articles. The apparatus has a stationary mold half having at least one cavity, at least two mating mold portions, each having at least one core ele ...


9
Robert D Schad, Herbert Rees, Gary Hughes, John R Murchie: Apparatus for preparing hollow plastic articles. Husky Injection Molding Systems, Bachman & LaPointe, September 1, 1987: US04690633 (46 worldwide citation)

The apparatus of the present invention involves transferring plastic parisons from a receiving station to a finishing station on a plurality of pallets in a single row for forming said parisons into hollow plastic articles. The pallets with parisons thereon are transported through a temperature cond ...


10
Robert D Schad, Paul P Brown: Tri-injection of hollow articles. Husky Injection Molding Systems, Bachman & LaPointe, February 28, 1989: US04808101 (36 worldwide citation)

Apparatus for tri-injecting a plurality of thermoplastic materials to mold an article having a layered wall structure using thermoplastic materials having different optimum processing temperatures including the maintenance of the optimum temperatures in flow paths individual to each material from it ...