公开(公告)号：US3705026A

公开(公告)日：1972-12-05

申请号：US3705026D

申请日：1970-10-15

申请人： BARTLETT COLLINS CO

发明人： MCREYNOLDS JAMES C ,  ADAMS WILLIAM E

IPC分类号： C03B9/193 ,  C03B9/32 ,  C03B9/42 ,  C03B9/44 ,  C03B23/26 ,  C03B35/12

CPC分类号： C03B35/125 ,  C03B9/193 ,  C03B9/32 ,  C03B9/42 ,  C03B9/44 ,  C03B23/26

摘要： Tumblers and the like articles are produced from vitreous, plastic and similar materials by a continuous step by step production method, wherein each article may be first preliminarily formed as a parison and then blow- formed as a blank or semi-finished article. While the blank is still hot or semi-plastic, dimples or depressions are formed in its side and bottom walls to produce an indented or dimpled type of shape. Side wall dimpling is accomplished by providing transfer finger pairs with pressure nubbins and preliminarily employing the fingers as clamping pressers; a bottom end dimple is produced by providing a bottom closure plate of a vacuum head assembly with a centrally disposed nubbin and applying suction force to draw the article up into the head.