Plastic article or earthenware shaping or treating: apparatus – Distinct means to feed – support or manipulate preform stock... – Female mold type means
Patent
1973-10-01
1981-10-20
Pavelko, Thomas P.
Plastic article or earthenware shaping or treating: apparatus
Distinct means to feed, support or manipulate preform stock...
Female mold type means
264161, 425122, 425552, 425577, 425806, B29F 100
Patent
active
042958130
ABSTRACT:
An apparatus and method for mounting thermoplastic materials directly upon a string medium. A hot runner system or three-plate mold provides the cavities for integrating the molten thermoplastic material and string medium. Molten thermoplastic is injected at a plurality of input apertures along a bifurcated mold, the bifurcated mold having complementary cavities joined by subrunners to transmit the molten thermoplastic material into each cavity. Each cavity is adapted to form a member which is to be permanently affixed on the string medium and includes aligned channels for receiving the stringed medium prior to injection of the molten thermoplastic material. The stringed medium is disposed within the channels prior to injection of the molten thermoplastic material. Under appropriate temperature and pressure conditions, the injected thermoplastic runner flows into subrunners filling each cavity of the bifurcated mold, thermoplastic bodies forming about the stringed medium in a permanent manner.
REFERENCES:
patent: 2386697 (1945-10-01), Lynch
patent: 2497951 (1950-02-01), Low
patent: 3013303 (1961-12-01), Amazon
patent: 3443001 (1969-05-01), Adair
patent: 3508299 (1970-04-01), Ahern
patent: 3577843 (1971-05-01), Kutik
patent: 3591897 (1971-07-01), Perras
Painter Michael A.
Pavelko Thomas P.
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