Image Number 3 for United States Patent #4548634.
A mold for producing a glass article having an opening and a protruding hollow portion, said mold comprising(A) a female mold comprised of a main female mold member and an auxiliary female mold member, the inside shapes of the depressed portions of the two female mold members substantially defining the outside shape of the glass article,(B) a male mold defining the inside shape of that part of the glass article, and(C) a gas exhaust port formed in an inmost position of the depressed portion of the auxiliary female mold member, and/or(D) a gas introducing port formed in the male mold in a position facing the depressed portion of the auxiliary female mold member.And a method for producing the glass article by using the mold.
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