Induction apparatus and method for sealing of thermoplastic coat

Details Induction apparatus and method for sealing of thermoplastic coat Induction apparatus and method for sealing of thermoplastic coat

1986-08-13

1987-11-03

Leung, Philip H.

Electric heating

Metal heating

Of cylinders

219 1043, 219 1079, 1562742, 1563802, H05B 640

Patent

active

047045094

ABSTRACT:
An arrangement for the sealing of thermoplastic-coated packing material of the type which includes at least one layer of an aluminum foil. The arrangement includes an inductor (3) connectable to a high-frequency source of current which is constituted of a U-shaped loop of electrically conducting material. The legs of the U-shaped loop are parallel and are situated close to each other, and the inductor (3) a core (10) of ferrite material between its legs. The core of ferrite material has local inserts (11) of ferrite material of substantially higher permeability than the surrounding portions of the core (10) and the local inserts (11) are installed in regions of the sealing arrangement where strong local heating is required in the sealing joint or where the sealing pattern needs to be influenced.

REFERENCES:
patent: 3315016 (1967-04-01), Wersosky
patent: 3444346 (1969-05-01), Russell et al.
patent: 3462336 (1969-08-01), Leatherman
patent: 3632943 (1972-01-01), Engler et al.
patent: 3727022 (1973-04-01), Hamilton
patent: 3864186 (1975-02-01), Balla
patent: 4054770 (1977-10-01), Jackson et al.
patent: 4060443 (1977-11-01), Balla
patent: 4371768 (1983-02-01), Pozna
patent: 4431891 (1984-02-01), Forstner et al.
patent: 4637199 (1987-01-01), Steck et al.

Affiliated with

Also associated with

Rating

Induction apparatus and method for sealing of thermoplastic coat does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Induction apparatus and method for sealing of thermoplastic coat, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Induction apparatus and method for sealing of thermoplastic coat will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1675444