Plastic and nonmetallic article shaping or treating: processes – With printing or coating of workpiece – Coating or impregnating workpiece before molding or shaping...
Reexamination Certificate
2007-01-30
2007-01-30
Johnson, Christina (Department: 1732)
Plastic and nonmetallic article shaping or treating: processes
With printing or coating of workpiece
Coating or impregnating workpiece before molding or shaping...
Reexamination Certificate
active
10693414
ABSTRACT:
Molding material consisting of resin coated reinforcing fibers in a molten mass of resin and fibers is prepared at a molding site for controlled supply to a molding machine. A conveying device, such as a pair of pinch rollers, serves to pull fibers from supply spools through guide orifices of a coating die having a chamber within which the fiber is coated with molten resin. Further impregnation of the fibers with resin takes place in the conveying device, which also develops pressure on its output side serving to push the mass of hot resin and fiber into a receiving device for movement to a molding machine. The receiving device may be the feed screw for an injection molding machine or simply a plate movable to and from a compression molding machine. The fibers may be cut into predetermined lengths by a cutting device positioned downstream of the aforesaid conveying device.
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Plastics Technology, Jan. 2001, “Keeping-Up with Injection Molding”.
Freed Robert C.
Huson Monica A
Johnson Christina
Moore & Hansen PLLP
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