Plastic article or earthenware shaping or treating: apparatus – Female mold and charger to supply fluent stock under... – With product ejector
Patent
1988-08-04
1990-09-04
Woo, Jay H.
Plastic article or earthenware shaping or treating: apparatus
Female mold and charger to supply fluent stock under...
With product ejector
425441, 425443, 4254519, 425590, B29C 4540
Patent
active
049540742
ABSTRACT:
An injection bladder press characterized by a bladder mold including an upper mold part, a lower mold part and a mold core; a squeeze piston for squeezing the mold when closed; and an injection unit for injecting rubber molding material into the mold to mold a bladder therein. A flexible hose is connected at one end to the mold core for movement therewith and for delivery of fluid to the mold core, and at its other end to a self-retracting hose reel operative to pay out and retract the flexible hose during movement of the mold core. A top platen is mounted to a top bolster for movement away from the top bolster to facilitate access to the injection nozzle. The mold core actuator is located with a support column depending from a moving bolster. The support column is engaged by a pressure column for transfer of mold clamping force to the moving bolster from the squeeze piston in a bottom bolster.
REFERENCES:
patent: 2490625 (1949-12-01), Hall
patent: 3554087 (1971-01-01), Florjancic
patent: 4597729 (1986-07-01), Singh et al.
Gleason Reel brochure entitled "New! Series K Hydraulic Dual-Hose Reels Safely and Efficiently Control Hoses on Moving Equipment".
McNeil Akron brochure entitled "Bladder Presses".
McNeil Akron brochure entitled "Bladder Presses and Semi-Bag-O-Matic Shaping Units".
Heitbrink Timothy W.
US Molding Machinery Company
Woo Jay H.
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