Device for welding foil edges

Details Device for welding foil edges Device for welding foil edges

1994-11-08

1996-02-13

Heinrich, Samuel M.

Metal fusion bonding

Including means to force or clamp work portions together...

2282352, 100 93RP, 156499, B23K 2004

Patent

active

054906261

ABSTRACT:
The invention relates to a device for the overlapping welding of foil edges. The device has heating surfaces for heating the foil edges. In order to achieve uniform heating of the foil edges, longitudinal ribs are provided over the entire width of the heating surface. Hereby it was found to be advantageous if the heating surfaces are constructed rib-free, i.e. smooth, in the starting area provided for the leading in of the foil edges. In this starting area, the foil edges are plastified at the leading-in surfaces first to such an extent that the longitudinal ribs are able to burrow themselves into these surfaces from the start.

REFERENCES:
patent: 4146419 (1979-03-01), Neidhart
patent: 4714514 (1987-12-01), Hoopengardner
patent: 4923558 (1990-05-01), Ellenberger et al.
patent: 5051148 (1991-09-01), Resch
patent: 5169052 (1992-12-01), Kaminski
patent: 5328545 (1994-07-01), Kaminski

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