发明授权
US4798617A Method of forming a parison in the manufacture of hollow articles of
glassware
失效
在制造玻璃器皿中空制品时形成型坯的方法
- 专利标题： Method of forming a parison in the manufacture of hollow articles of glassware
- 专利标题（中）： 在制造玻璃器皿中空制品时形成型坯的方法
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申请号： US31072申请日： 1987-03-26
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公开(公告)号： US4798617A公开(公告)日： 1989-01-17
- 发明人: Thomas V. Foster , Stanley P. Jones , David L. Alderson
- 申请人： Thomas V. Foster , Stanley P. Jones , David L. Alderson
- 申请人地址： CT Farmington
- 专利权人： Emhart Industries, Inc.
- 当前专利权人： Emhart Industries, Inc.
- 当前专利权人地址： CT Farmington
- 优先权： GBX8501991 19850126
- 主分类号： C03B9/197
- IPC分类号： C03B9/197 ; C03B9/193 ; C03B9/34 ; C03B11/10 ; C03B11/12 ; C03B11/16 ; C03B40/04
摘要：
A method for forming parisons in the manufacture of hollow articles of glassware. The method comprising forming each parison by introducing a gob of molten glass into a mould cavity (10) having the shape desired for the external surface of the parison, and moving a plunger (14,70) into the mould cavity to cause the molten glass to conform to the shape of the cavity. The method also comprises forming a layer of gas (G.98) between a surface portion of the plunger and the molten glass so that, as the plunger moves into the cavity, the glass is pushed into shape by the layer of gas, and rotating or vibrating the plunger while it is in the mould cavity.
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