Adhesive bonding and miscellaneous chemical manufacture – Surface bonding means and/or assembly means therefor – Presses or press platen structures – per se
Patent
1978-03-10
1979-09-11
Goolkasian, John T.
Adhesive bonding and miscellaneous chemical manufacture
Surface bonding means and/or assembly means therefor
Presses or press platen structures, per se
53329, 74520, 100 93P, 100281, 100272, 219243, B30B 1534
Patent
active
041674359
ABSTRACT:
A sealing apparatus for joining container parts of a plastic-lightweight al 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 rapid 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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FKF Berlin Fleischwaren und Konservenfabrik, Schulz & Berndt Gmb
Gallagher J. J.
Goolkasian John T.
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