Apparatus for supplying inorganic slurry to an injection mold

Details Apparatus for supplying inorganic slurry to an injection mold Apparatus for supplying inorganic slurry to an injection mold

1996-07-02

1998-08-18

Heitbrink, Tim

Plastic article or earthenware shaping or treating: apparatus

Female mold and charger to supply fluent stock under...

With normally open stock chamber

423242, 425584, B29C 4563

Patent

active

057956014

ABSTRACT:
A slurry tank which stores an inorganic slurry includes a funnel-shaped lower tank portion having a discharge port. A valve is positioned in the slurry tank above the discharge port and complementary in shape to an inner surface of the funnel-shaped lower tank portion of the slurry tank. The valve can be moved by an actuator selectively out of the discharge port to allow the inorganic slurry to be discharged from the discharge port and into the discharge port to stop discharging the inorganic slurry from the discharge port. A proportional pump is connected to the discharge port for supplying the inorganic slurry at a constant rate to a mold for injection molding when the valve is moved out of the discharge port by the actuator. A cylinder is connected to the proportional pump for being supplied with the inorganic slurry from the proportional pump and the cylinder opens into the mold. A plunger movably disposed in the cylinder applies the desired pressure on the inorganic slurry from the cylinder into the mold.

REFERENCES:
patent: 4948087 (1990-08-01), Hisaeda et al.
patent: 5100643 (1992-03-01), Brna et al.
patent: 5259749 (1993-11-01), Meixner et al.

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