Cam acting core lock and straightener

Details Cam acting core lock and straightener Cam acting core lock and straightener

1980-11-26

1981-12-22

Flint, Jr., J. Howard

Plastic article or earthenware shaping or treating: apparatus

Core and positioning means therefor

425DIG5, 425577, B29C 106, B29F 1002

Patent

active

043068510

ABSTRACT:
A means and method are provided for straightening and locking an elongated cantilevered mold core into molding alignment before injecting a molding composition into a cavity for a deep, thin-walled container. In a preferred embodiment a core locking cam means is rotatably retained in the base of a mold. A stationary complementary cam reacting means is located in the free end of the core. The core is locked by telescoping the cam means into the reacting means and rotating the cam means to bring it into locking engagement with the core end.

REFERENCES:
patent: 3473197 (1969-10-01), Wilds et al.
patent: 3509603 (1970-05-01), Halsall et al.
patent: 3564660 (1971-02-01), Darnell
patent: 3816047 (1974-06-01), Mohler
patent: 3969055 (1976-07-01), Buckethal
patent: 3972737 (1976-08-01), Sullivan et al.
patent: 4128361 (1978-12-01), Bonis

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