Package making – Methods – Forming a cover adjunct or application of a cover adjunct to...
Patent
1996-04-29
1997-11-25
Crane, Daniel C.
Package making
Methods
Forming a cover adjunct or application of a cover adjunct to...
531342, B65B 2904, B65B 6114
Patent
active
056899360
ABSTRACT:
A method and apparatus for manufacturing tagged two-ply infusion packages. The string (14) forming the tags is supplied to a rotating drum (12) which has a plurality of pins (17) protruding from its periphery. The drum (12) is rotatably mounted so as to cooperate with a web (1) used to form at least one layer of the two-ply infusion package. As the drum (12) rotates the string (14) is guided around the pins (17). The web (1) is introduced to the drum (12) by a roller (29) and urged against it by a curved guide (30) to transfer the string from the periphery of the drum to the surface of the web (1). The guide (30) is heated so as to melt the thermoplastics coating on the web (1), whereby the string is attached lightly to the web by the combination of heat and pressure from the guide (30). The web (1) with the string (14) lightly attached thereto is then sealed to a second web on which an infusion material has been deposited by heat sealing rollers (8) to form a travelling two-ply web having infusion containing pockets (11). The individual packages are then cut from the travelling two-ply web by, for example, co-rotating cutting rollers defining the shape of the packages.
REFERENCES:
patent: 2457216 (1948-12-01), Eaton
patent: 2861403 (1958-11-01), Weisman
patent: 2987857 (1961-06-01), Whelan
patent: 3191355 (1965-06-01), Morpurgo
patent: 4961301 (1990-10-01), Bonomelli
patent: 5135762 (1992-08-01), Vernon
A.G. (Patents) Limited (British company)
Baxley Esq. Charles E.
Crane Daniel C.
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