Package making – Progressively seamed cover web or web folds – With closing of web between package units
Patent
1997-11-07
1999-11-02
Coan, James F.
Package making
Progressively seamed cover web or web folds
With closing of web between package units
533732, 533734, B65B 906
Patent
active
059747706
ABSTRACT:
There is provided a press capable of solving a new problem of breakage of springs and surely applying the pressure for a long period of time in the lateral sealing process in a high-speed filling and packaging apparatus for manufacturing package containers each having a rectangular shape in cross section and filled with a fluid content such as juice. In the press comprising seal bars and a pair of engaging members which are respectively provided at both ends of the seal bars for producing a sealing pressure when they engage with each other for permitting said seal bars to nip a packaging material web which is filled with a fluid content and formed in a tubular shape, the press employs fluid such as air as a means for advancing a piston rod to which the movable engaging member is secured and a pressure sensor is provided for detecting the change of pressure of fluid in an air supply passage.
REFERENCES:
patent: 4384438 (1983-05-01), Hilmersson
patent: 4580392 (1986-04-01), Lagerstedt et al.
patent: 4757668 (1988-07-01), Klinkel et al.
patent: 5027579 (1991-07-01), Keip
patent: 5540035 (1996-07-01), Plahm et al.
Copy of European Search Report 97119809 completed Mar.19, 1998.
Katayama Hiroshi
Kume Satoshi
Tawa Shigenori
Ueda Michio
Coan James F.
Kim Gene L.
Shikoku Kakoki Co. Ltd.
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