Core for deep draw molding a closure cap for bottles and the lik

Details Core for deep draw molding a closure cap for bottles and the lik Core for deep draw molding a closure cap for bottles and the lik

1977-04-12

1978-07-11

Flint, Jr., J. Howard

Plastic article or earthenware shaping or treating: apparatus

Preform reshaping or resizing means: or vulcanizing means...

Including shaping means comprising fluid pressure contacting...

425438, 249 59, 215329, 264 90, 264 92, 264 94, 264334, B29C 1704, B29D 100

Patent

active

040999033

ABSTRACT:
A bottle cap is constructed with stepped portions, including a large diameter serrated lower portion, an intermediate diameter threaded portion, and a smaller diameter serrated upper portion. The cap is produced by deep drawing on a mold core having a base portion carrying a pedestal, to which a thread-forming portion is rigidly secured. A large diameter, lower serration-forming portion and a small diameter, upper serration-forming portion are rotatably mounted on the pedestal below and above the thread-forming mold portion, respectively. After the bottle cap is formed the pedestal is rotated, to disengage the completed cap from the mold core.

REFERENCES:
patent: 2306205 (1942-12-01), Crosonan
patent: 2391527 (1945-12-01), Tracy
patent: 2395209 (1946-02-01), Zesbaugh
patent: 2799049 (1957-07-01), Wilson
patent: 2992577 (1961-07-01), Marxen
patent: 3481000 (1969-12-01), Barfuss
patent: 3584092 (1971-06-01), Alexandris
patent: 3584111 (1971-06-01), Allison
patent: 3651185 (1972-03-01), Menkel
patent: 3759652 (1973-09-01), Childs et al.

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