Molding system with automatic fluid treatment of mold cavity

Details Molding system with automatic fluid treatment of mold cavity Molding system with automatic fluid treatment of mold cavity

1975-04-16

1977-03-01

Husar, Francis S.

Plastic article or earthenware shaping or treating: apparatus

With means applying coating material to work or work contact...

Separate means applying material directly to shaping means,...

249 66A, 249 68, 425437, 425444, B29C 104, B29C 700

Patent

active

040099784

ABSTRACT:
Two mold halves together form a mold cavity and one of the mold halves is fitted with a plurality of ejector rods that can be reciprocated so as to push a molded article out of that half. At least some of these ejector rods are formed with throughgoing passages terminating adjacent the inner ends thereof at nozzle openings. Air and a treatment fluid, such as a demolding liquid, can be injected into the mold interior through these rods, the nozzle openings in the ends of the rods being covered during the normal molding operation.

REFERENCES:
patent: 2444282 (1948-06-01), Creevy
patent: 2710988 (1955-06-01), Willcox et al.
patent: 2929105 (1960-03-01), Starck et al.
patent: 3605181 (1971-09-01), Posner
patent: 3671159 (1972-06-01), Greenberg et al.
patent: 3805875 (1974-04-01), Daugherty et al.

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