Abstract: A fitting is provided to permit granular material carried in an air stream to be deposited within a storage vessel without having the air stream entering the storage vessel itself. The fitting has a tubular filter screen within the housing of the fitting and an air and dust exit port communicates with the filter screen to permit air and dust to be carried through this filter screen and out of the fitting housing. Because of the close proximity of the fitting to the storage vessel, the momentum of the granular material being carried through the fitting deposits the material within the storage vessel.

Abstract: A loading apparatus is provided for receiving solid particulate material entrained in gas stream. The loading apparatus separates the particulate material, such as plastic pellets or plastic regrind, from the gas stream so that the particulate material is retained in the loading apparatus for subsequent loading into another receiving vessel or into an injection molding machine. The gas stream leaves the loading apparatus substantially free of particulate material. The entrained particulate material enters the generally cylindrical loading apparatus in a tangential direction and the reduction in speed of the gas stream causes the particulate material to fall out into the inverted frusto-conical lower section of the loading apparatus. Gas leaving the upper section of the loading apparatus is caused to reverse its circumferential flow before leaving the loading apparatus so that substantially all of the fines in the gas stream fall out into the body of the loading apparatus.

Abstract: A method of supplying material to an article forming mold of an injection molding machine. The method comprises initially mixing a granular thermoplastic resin with a granular filler in a dry state and then heating the dry mixture in the chamber in which the feed screw of an injection molding machine rotates. The heating is controlled to initially convert the dry resin to a molten mass while simultaneously heating the filler with the filler remaining as a heated solid. After such initial heating the molten resin/heated filler is retained at a lower temperature prior to molding and then is further heated for ejection from the chamber.

Abstract: A blending apparatus in which vertically spaced members are located below vertically spaced material sweep blades to prevent the materials which are being mixed from accumulating on the walls of the chamber in which the mixing occurs.

Abstract: An apparatus of transporting pneumatically suspended particulates from a source to a plurality of receivers and, more particularly, an apparatus for such conveying offering an improved means to minimize material blockage of the primary and branch delivery conduits when switching primary feed of the suspended particulates from one receiver to another.

Abstract: A vacuum material transporting system and more particularly, a vacuum material transporting system having an improved dust collecting means for collecting lightweight fines which are carried over from the main material stream.

Abstract: A material loading device and more particularly a device for the transportation of pulverant, finely divided or granular material from a source of such material to a material receiving loader and which includes an improved structure for collecting lightweight fines which separate from the main material stream and reintroducing substantially all of such fines to the material receiving hopper of the loader.