Adhesive bonding and miscellaneous chemical manufacture – Surface bonding means and/or assembly means therefor – Presses or press platen structures – per se
Patent
1977-02-16
1978-03-07
Drummond, Douglas J.
Adhesive bonding and miscellaneous chemical manufacture
Surface bonding means and/or assembly means therefor
Presses or press platen structures, per se
53375, 93DIG1, B31B 3100, E04B 200
Patent
active
RE0295680
ABSTRACT:
Carton sealing apparatus for sealing a rectangular end closure of a thermoplastic coated paperboard carton by ultrasonic vibrations. The apparatus includes an anvil, or backup member, and an ultrasonic vibrating tool. The mandrel is received in the carton with the end closure to be sealed folded against the smooth end surface thereof. The ultrasonic vibrating tool engages the end closure on the opposite side thereof from the mandrel, and, when energized, generates heat sufficient to cause the thermoplastic coating of the paperboard to flow and weld the layers of the end closure together. Ribs project from the end surface of the vibrating tool to provide a sealing pattern of "bow-tie" configuration, the ribs having various heights with respect to the end surface of the vibrating tool to accommodate changes in the number of layers of paperboard at the different areas on the end closure.
REFERENCES:
patent: 2837983 (1958-06-01), Kovac
patent: 3196068 (1965-07-01), Schoder et al.
patent: 3422730 (1969-01-01), Mitzelfelt et al.
patent: 3468731 (1969-09-01), Obeda
patent: 3700529 (1972-10-01), Monaghan
patent: 3787257 (1974-01-01), Akerlund
Drummond Douglas J.
Ex-Cell-O Corporation
LandOfFree
Carton sealing apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Carton sealing apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Carton sealing apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2014041