Dye metering method for injection molding operations

Claim 1

A CONTINUOUS METHOD OF METERING AND MIXING DRY POWDERED DYE MATERIAL AND PLASTIC MATERIAL DURING AN INJECTION MOLDNG OPERATION, SAID METHOD COMPRISING THE STEPS OF CONTINUOUSLY MOVING A STREAM OF DRY PLASTIC MATERIAL BY ACTION OF GRAVITY THROUGH A VERTICAL COURSE OF TRAVEL, CONTINUOUSLY INTRODUCING DRY POWDERED DYE MATERIAL BY ACTION OF GRAVITY INTO A SUBSTANTIALLY CLOSED HORIZONTAL METERING CHAMBER AND CONTINUOUSLY MOVING SAID DRY POWDER IN A HORIZONTAL STREAM THROUGH THE METERING CHAMBER BY A REVOLVABLE VARIABLE SPEED METERING MEDIUM, CONTINUOUSLY DISCHARGING A STREAM OF POWDERED DYE MATERIAL HAVING A PREDETERMINED VOLUME FLOW FROM THE MEDIUM CHAMBER BY ACTION OF GRAVITY DIRECTLY INTO THE VERTICALLY MOVING STREAM OF PLASTIC MATERIAL, CONTROLLING THE VOLUME FLOW OF THE STREAM OF PLASTIC AND DYE MATERIALS IN A VERTICAL COURSE OF TRAVEL AND PASSING SAID CONTINUING MOVEMENT OF THE STREAM OF PLASTIC AND DYE MATERIALS IN A VERTICAL COURSE OF TRAVEL AND PASSING SAID MATERIALS THROUGH A RESTRICTED ZONE TO CAUSE ADMIXING OF THE PLASTIC AND DYE MATERIAL AND CONTINUING OF THE STREAM OF MIXED MATERIAL AND INTRODUCING THE MIXTURE ONLY INTO A HORIZONTALLY DISPOSED HEATING AND MIXING CHAMBER, AND FURTHER MIXING SAID MIXED MATERIALS AND SIMULTANEOUSLY HEATING THE SAME TO A FLUID CONDITION BY A REVOLVABLE HEATING AND MIXING MEDIUM WHILE MOVING THE STREAM OF MIXED MATERIALS THROUGH A HORIZONTAL COURSE OF TRAVEL.