Welding apparatus

Details Welding apparatus Welding apparatus

1985-10-28

1988-09-06

Ball, Michael W.

Adhesive bonding and miscellaneous chemical manufacture

Surface bonding means and/or assembly means therefor

Automatic and/or material-triggered control

156499, 156553, 156555, 156574, 156582, 1565831, B30B 304, B30B 1534

Patent

active

047691026

ABSTRACT:
A welding apparatus for producing at least two spaced welding seams for welding together overlapping ends of two lengths of thermoplastic synthetic resin sheets at a welding station, comprises a frame, a heating device arranged on the frame ahead of the welding station in an operating direction and being displaceable in this direction. The heating device includes at least two spaced welding wedges and a separate heating element arranged in each one of the welding wedges, each heating element being independently thermostatically controllable.

REFERENCES:
patent: 2387566 (1945-10-01), Custers
patent: 3109764 (1963-11-01), Natelli
patent: 3229620 (1966-01-01), Rogers
patent: 3624836 (1971-11-01), Rohdin
patent: 3748207 (1973-07-01), Campbell
patent: 4146419 (1979-03-01), Neidhart
patent: 4560431 (1985-12-01), Inselmann

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