Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1976-05-10
1978-06-27
Klein, David
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
53 39, 93DIG1, 100 93P, 100281, 100272, 156182, 156583, 156306, 426398, B29C 2700
Patent
active
040973182
ABSTRACT:
A sealing apparatus for joining container parts of a plastic-lightweight metal foil laminate by heat and pressure applied to the laminates when the respective plastic layers are pressed into contact uses a toggle linkage and a yieldable buffer, with a hydraulic actuator to drive the toggle linkage to close a pair of sealing heads together. The toggle linkage permits build-up of pressure to a value predetermined by the construction of the buffer, after which the buffer yields to hold the sealing pressure. The duration of the build-up to sealing pressure comprises no more than 20% of the time interval between initiation of pressure build-up and the start of pressure drop-off at the end of the sealing process.
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patent: 3657055 (1972-04-01), Nichols
patent: 3817801 (1974-06-01), Widmer
FKF Berlin Fleischwaren-und Konserven- Fabrik Schulz & Berndt Gm
Gallagher J. J.
Klein David
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