Plastic article or earthenware shaping or treating: apparatus – Female mold and charger to supply fluent stock under... – With means to close mold
Reexamination Certificate
2005-01-18
2005-01-18
Mackey, James P. (Department: 1722)
Plastic article or earthenware shaping or treating: apparatus
Female mold and charger to supply fluent stock under...
With means to close mold
C425S451700
Reexamination Certificate
active
06843647
ABSTRACT:
A mechanism for advancing and retreating a movable die plate toward and from a fixed die plate includes a moving base in which the upper surface thereof is connected integrally with the movable die plate and a slide unit is installed on the lower surface thereof. A pair of track rails are provided on the base and form a linear guide by engaging with the slide unit. A ball screw shaft is supported in parallel with the track rails by a bearing provided on the base and has an axial direction restrained rotatably. A servomotor drives the ball screw shaft and a ball screw nut is installed on the lower surface of the moving base to threadedly engage with the ball screw shaft, and the ball screw shaft and the ball screw nut are provided at an arbitrary position between the paired track rails for linear guidance.
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Fujita Saburo
Sugita Tosimichi
Yamamoto Jun-ichi
Mackey James P.
Mitsubishi Heavy Industries Ltd.
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
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