Plastic article or earthenware shaping or treating: apparatus – Female mold and charger to supply fluent stock under... – With means to cause relative movement between mold and charger
Reexamination Certificate
2006-12-12
2006-12-12
Heitbrink, Tim (Department: 1722)
Plastic article or earthenware shaping or treating: apparatus
Female mold and charger to supply fluent stock under...
With means to cause relative movement between mold and charger
Reexamination Certificate
active
07147459
ABSTRACT:
A control mechanism includes two hydraulic cylinders, a valve connected to the cylinders, and an actuating unit for the valve; racks are joined to power output rods of the cylinders, facing each other, and engaging a gear secured on a rotary disk; the valve includes a body, and a rod made to stick out from the body at outward end by a spring; the rod can reduce an oil passage of the body after it is displaced further into the body, and the rod can block the oil passage substantially at an end of its displacement further into the body; the actuating unit is movable with one of the power rod, and has two sloping boards thereon such that the rod will be displaced further into the body when the actuating unit moves with the power rod, and when the sloping boards slide over the outward end of the rod of the valve.
REFERENCES:
patent: 6402504 (2002-06-01), Hahn et al.
patent: 6468458 (2002-10-01), Anderson et al.
Heitbrink Tim
Hwa Chin Machinery Factory Co. Ltd.
Rosenberg , Klein & Lee
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