Package making – Methods – Closing package or filled receptacle
Patent
1982-09-02
1983-09-13
Culver, Horace M.
Package making
Methods
Closing package or filled receptacle
53373, 53DIG2, 156 731, 1565802, 156581, B65B 5114
Patent
active
044034652
ABSTRACT:
Apparatus and method for forming sealed joints, including a pouring lip sanitarily protected therein, by welding layers of thermoplastic coated paperboard together. Paperboard layers are pressed together by jaws, with relieved areas where excessive pressure would render pouring lip less satisfactory, while or after heat is applied to said paperboard layers. The apparatus and method is particularly useful for forming sealed joints for paperboard cartons, such as milk cartons.
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Culver Horace M.
Nimco Corporation
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