Retractable pin for an injection mold

Details Retractable pin for an injection mold Retractable pin for an injection mold

1991-04-22

1992-09-15

Hoag, Willard

Plastic article or earthenware shaping or treating: apparatus

Distinct means to feed, support or manipulate preform stock...

Female mold type means

425127, 425129, 425577, 4251291, B29C 4536, B29C 4134

Patent

active

051476576

ABSTRACT:
The retractable pin for an injection mold machine used for molding golf balls has a frictionless bushing means affixed at its outer end which is slidable along a shaft. The shaft and the frictionless bushing means are coaxial and perpendicular to the retractable pin. The pin head is shaped substantially like a dimple.

REFERENCES:
patent: 721462 (1903-02-01), Richards
patent: 2361348 (1944-10-01), Dickson et al.
patent: 3068522 (1962-12-01), Nickerson et al.
patent: 4959000 (1990-09-01), Giza

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