Seal and cut method and apparatus
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United States of America Patent
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Sep 24, 2013
Grant Date -
Aug 11, 2011
app pub date -
Feb 10, 2010
filing date -
Feb 10, 2010
priority date (Note) -
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status (Latency Note)
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Abstract
A method for forming a bag includes moving a film at a first velocity, forming a seal on the moving film with a sealing device moving at the first velocity, moving the film and the sealing device relative to each other and thereby moving the sealing device out of alignment with the seal, aligning a film separation device with the seal on the moving film, moving the film separation device with the moving film, and separating the film across the seal with the film separation device. A sealing and cutting device includes a carriage moveable along a longitudinal axis and upper and lower grippers coupled to the carriage. A sealing device and a cutting device are positioned between the upper and lower grippers.
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