Venting device for mold

Details Venting device for mold Venting device for mold

2008-12-15

2010-10-12

Mackey, James (Department: 1791)

Plastic article or earthenware shaping or treating: apparatus

Miscellaneous

C249S141000, C425S028100, C425S812000

Reexamination Certificate

active

07811078

ABSTRACT:
A mold blocking member for use in a vent bore of a mold for the manufacture of rubber products is provided. The mold blocking member has a tubular hollow body having a first end and a second end, wherein the first end has a cap with an inner portion surrounded by a recessed annular portion, wherein the inner portion is connected to the recessed annular portion by a sidewall, wherein the sidewall has one or more slots therein. The slots opening has a width dimension in the range of about 0.1 mm to about 0.6 mm and a thickness in the range of about 0.03 mm to about 0.15 mm. It is preferred that the inner portion is flat and recessed with respect to the outer rim of the first end.

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