Process for filling and subsequent fusion welding of receptacles

Details Process for filling and subsequent fusion welding of receptacles Process for filling and subsequent fusion welding of receptacles

1989-09-07

1990-05-22

Culver, Horace M.

Package making

Methods

With contents treating

53453, 53467, 53477, B65B 4708, B65B 3102, B65B 5114

Patent

active

049266136

ABSTRACT:
In a process for the filling and hermetically sealing by fusion welding a receptacle which is elastically deformable, the liquid level in the receptacle is raised by elastic deformation of the receptacle before the receptacle is sealed closed by fusion welding. A vacuum pressure is established during at least a portion of the length of time between the beginning of the raising of the liquid level and the hermetical sealing by fusion welding applied to the filler connection of the receptacle.

REFERENCES:
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patent: 3251915 (1966-05-01), Pechthold
patent: 3325860 (1967-06-01), Hansen
patent: 3381441 (1968-05-01), Condo, Jr. et al.
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patent: 3690803 (1972-09-01), Pechtold et al.
patent: 3827214 (1974-08-01), Naumann
patent: 3863424 (1975-02-01), Naumann
patent: 3897670 (1975-08-01), Hansen
patent: 4213933 (1980-07-01), Cambio
patent: 4699748 (1987-10-01), Weiler
patent: 4790117 (1988-12-01), Hansen

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