发明授权
US4170623A Method of blow molding an all plastic drum and compression molding a
projection thereon
失效
吹塑所有塑料滚筒并在其上压缩成型投影的方法
- 专利标题： Method of blow molding an all plastic drum and compression molding a projection thereon
- 专利标题（中）： 吹塑所有塑料滚筒并在其上压缩成型投影的方法
-
申请号： US920061申请日： 1978-06-28
-
公开(公告)号： US4170623A公开(公告)日： 1979-10-09
- 发明人: Robert A. Dubois , George F. Smith
- 申请人： Robert A. Dubois , George F. Smith
- 申请人地址： OH Delaware
- 专利权人： Greif Bros. Corporation
- 当前专利权人： Greif Bros. Corporation
- 当前专利权人地址： OH Delaware
- 主分类号： B29C49/48
- IPC分类号： B29C49/48 ; B65D1/16 ; B65D25/22 ; B29C17/07
摘要：
An all plastic tubular drum is blow molded into the selected configuration from an extruded parison. The parison is provided with at least two spaced circumferentially extending thickened sections. These thickened sections are captured in a compression mold cavity during the blow molding cycle. Thereafter the captured thickened sections are compression molded into outwardly extending projections, undercuts, reinforcing gussets, or the like.
公开/授权文献
信息查询
