Sealing device for sealing and simultaneously cutting a web...

Details Sealing device for sealing and simultaneously cutting a web... Sealing device for sealing and simultaneously cutting a web...

2004-04-06

2008-08-19

Sells, James (Department: 1791)

Adhesive bonding and miscellaneous chemical manufacture

Surface bonding means and/or assembly means therefor

With cutting, punching, piercing, severing, or tearing

C156S073300, C156S530000, C156S580200

Reexamination Certificate

active

07412998

ABSTRACT:
The present invention relates to a sealing device for making a longitudinal seal on and simultaneously trimming the excess material from a web of material during the formation of a continuous tubular wrapping of filter paper in a station forming part of an automatic machine for making filter bags containing infusion products such as tea or coffee.

REFERENCES:
patent: 5665196 (1997-09-01), Combe et al.
patent: 03261540 (1991-11-01), None

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