Mold with porous cavity vent

Details Mold with porous cavity vent Mold with porous cavity vent

1978-01-13

1979-08-21

Briggs, William R.

Static molds

Container-type molding device

Including auxiliary port for transmission of fluid, i.e.,...

249142, 425405R, 425420, 425812, B28B 1700

Patent

active

041650620

ABSTRACT:
A mold for injection molding of long thin walled articles has precisely balanced high-volume venting of a narrow cavity space surrounding a long slender cantilevered core and minimized flash. The venting is provided by closing an end of the female mold cavity with a sintered metal plug and forming an end of the mold cavity in an end face of the plug.

REFERENCES:
patent: 2378586 (1945-06-01), Schultz
patent: 2434594 (1948-01-01), Schultz
patent: 2900664 (1959-08-01), Hampel et al.
patent: 3078508 (1963-02-01), Martin, Jr.

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