Adhesive bonding and miscellaneous chemical manufacture – Surface bonding means and/or assembly means therefor – Automatic and/or material-triggered control
Patent
1978-04-24
1980-03-18
Drummond, Douglas J.
Adhesive bonding and miscellaneous chemical manufacture
Surface bonding means and/or assembly means therefor
Automatic and/or material-triggered control
1565801, 93 441GT, B32B 3100, B31B 126
Patent
active
041938330
ABSTRACT:
Apparatus is disclosed for forming a seal between layers of a carton of thermoplastic coated paperboard material and the like in a sealant activating station wherein the sealant is activated and a clamping and sealing station wherein the sealant is allowed to cool and set under pressure to form a seal between the layers. The carton first moves to the activating station wherein the layers to be sealed are engaged on opposite surfaces by a vibrating horn and a movable first backup member in the form of an anvil for a time sufficient to activate the thermoplastic material which serves as a sealant. A first adjustable overtravel spring assembly biases a first backup means. The carton then moves to the clamping and sealing station where a movable pressure pad and a second backup member engage the layers having the activated thermoplastic thereon for a predetermined period of time to permit the activated thermoplastic to cool, set and form a seal. A second adjustable overtravel spring assembly biases a pressure pad. The carton is carried by a conveyor assembly, which is synchronized with the movement of the first back member and the pressure pad.
REFERENCES:
patent: 3439392 (1969-04-01), McNab
patent: 3505136 (1970-04-01), Attwood
patent: 3823055 (1974-07-01), Schulz et al.
patent: 3905280 (1975-09-01), Eqleston
patent: 3910014 (1975-10-01), Braun
patent: 3937131 (1976-02-01), Kellogg
patent: 4072089 (1978-02-01), Bosche
Drummond Douglas J.
Ex-Cell-O Corporation
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