Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Reexamination Certificate
2007-05-02
2009-02-17
Koch, III, George R (Department: 1791)
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
C156S073100
Reexamination Certificate
active
07491280
ABSTRACT:
Systems and methods for welding of parts are described. In one embodiment, a method for ultrasonic welding of parts by means of an ultrasonic welding device including at least a generator, a converter, and a sonotrode based on a set curve of a time-dependent welding parameter appropriate to a welding connection meeting set requirements, where the welding duration corresponding to the set curve runs between a starting time t0and an end time te, wherein during welding of the parts an actual curve of the time-dependent welding parameter is measured, where in the period between t0and tethe actual curve is compared with the set curve and, depending on the existing difference, at least one process parameter affecting welding is altered such that an equalization of set curve and actual curve occurs during further welding.
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Foley & Hoag LLP
Koch, III George R
Schunk Ultraschalltechnik GmbH
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