Plastic and nonmetallic article shaping or treating: processes – With measuring – testing – or inspecting – Positioning of a mold part to form a cavity or controlling...
Patent
1981-04-06
1983-05-17
Silbaugh, Jan H.
Plastic and nonmetallic article shaping or treating: processes
With measuring, testing, or inspecting
Positioning of a mold part to form a cavity or controlling...
264 401, 264544, 264238, 264321, 425150, B29C 1702, B29C 1704
Patent
active
043839541
ABSTRACT:
Method and apparatus for continuously forming articles and stacking them ready for formation of batches from the stack. Some of the articles are treated by being given a disfigurement which makes them identifiable in the stack so that batch lengths containing predetermined numbers of articles are clearly seen. These disfigurements are caused by moving a moveable element forming part of the forming surface of the machine whereby the surface shape is changed to cause change in shape of the articles. The invention is particularly useful during forming and stacking of shallow thermoformed thermoplastic articles.
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patent: 3632252 (1972-01-01), Amberg et al.
patent: 3802819 (1974-04-01), Alroy
Genpak Corporation
Silbaugh Jan H.
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