Adhesive bonding and miscellaneous chemical manufacture – Surface bonding means and/or assembly means therefor – Automatic and/or material-triggered control
Patent
1983-09-13
1984-09-04
Simmons, David A.
Adhesive bonding and miscellaneous chemical manufacture
Surface bonding means and/or assembly means therefor
Automatic and/or material-triggered control
1565831, 1565834, 219243, 219487, 219508, H05B 102
Patent
active
044695454
ABSTRACT:
Heating apparatus for thermally bonding thermoplastic foil layers to produce a longitudinally welded seam. The heating apparatus comprises an elongated jaw element having a work surface for receiving the thermoplastic foils, at least two heating elements located within the jaw element and at least one temperature sensor associated with each of the heating elements. A control device is coupled to each of the heating elements and its respective temperature sensor to maintain the temperature of the jaw element at a value which will result in bonding of the foil layers. A regulating device is coupled to the control devices and to the temperature sensors for selectively operating the control devices to switch the heating elements in accordance with the temperature detected by the temperature sensor.
REFERENCES:
patent: 3148269 (1964-09-01), Hartesveldt et al.
patent: 4127854 (1978-11-01), Gardner
patent: 4160689 (1979-07-01), Altermatt
patent: 4321457 (1982-03-01), Edel et al.
SIG - Schweizerische Industrie-Gesellschaft
Simmons David A.
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