Device for the pre-sealing of a document to a plastic band

Details Device for the pre-sealing of a document to a plastic band Device for the pre-sealing of a document to a plastic band

1994-03-29

1996-02-13

Simmons, David A.

Adhesive bonding and miscellaneous chemical manufacture

Surface bonding means and/or assembly means therefor

With work feeding or handling means

156519, 271307, 83102, 83107, 493342, B32B 3110

Patent

active

054908990

ABSTRACT:
A device for the pre-sealing of a document to a plastic band comprises at least one first cylinder on which the document is wound from a first given point of space tangential to the cylinder and a mechanism for heating the plastic band at a second point tangential to the cylinder where the plastic band is in contact with the document, this tangential point forming a constant angle (.alpha.) with the given point of space, the document being pre-sealed by the affixing of the plastic band to this second tangential point. Application to the pre-sealing, to a plastic band, of documents that are to be plastified on an industrial scale.

REFERENCES:
patent: 2258428 (1941-10-01), Stalder
patent: 2335033 (1943-11-01), Tompkins
patent: 2390712 (1945-12-01), Hudgins
patent: 3505145 (1970-04-01), Martensson et al.
patent: 3556899 (1971-01-01), Strobel
patent: 3838550 (1974-10-01), Mueller
patent: 3879246 (1975-04-01), Walker
patent: 4888078 (1989-12-01), Instance
patent: 4952264 (1990-08-01), Knape
patent: 5021111 (1991-06-01), Swenson
patent: 5197938 (1993-03-01), Chmielewski
patent: 5235515 (1993-08-01), Ungpiyakul et al.

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