Plastic article or earthenware shaping or treating: apparatus – With apparatus assembly or dismantling means or with idle part – For extrusion or injection type shaping means
Reexamination Certificate
2007-08-21
2007-08-21
Mackey, James P. (Department: 1722)
Plastic article or earthenware shaping or treating: apparatus
With apparatus assembly or dismantling means or with idle part
For extrusion or injection type shaping means
C425S195000
Reexamination Certificate
active
10919082
ABSTRACT:
A set of injection mold sections are supported and secured to parallel spaced platens of an injection molding press by quick-change locking couplers including a plurality of projecting knobs or studs on each mold section. The studs are received within corresponding cylinders each having a tapered seat which engages a mating surface on the stud. Each cylinder also supports circumferentially spaced balls movable between locked positions engaging enlarged head portions of the studs and retracted released positions in response to axial movement of a spring biased piston within a housing. The pistons are moved to released positions in response to pressurized air supplied simultaneously to the housings. The locking couplers may be recessed within an adapter plate disposed between a mold section and the supporting platen, and the adapter plate has a pattern of threaded holes for mounting a conventional mold section.
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Davies Ian Jonathan
Lowe Vernon John
Jacox Meckstroth & Jenkins
Mackey James P.
Tooling Technology LLC
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