Pressure sealer for nested documents
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United States of America Patent
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Sep 30, 2003
Grant Date -
Oct 3, 2002
app pub date -
Apr 3, 2001
filing date -
Apr 3, 2001
priority date (Note) -
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status (Latency Note)
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Abstract
A pressure sealer machine is provided for the production of pressure sealed documents, and more specifically nested documents, that uses a number of roller cassettes disposed in side-by-side relation, in parallel to at least one drive roller, for handling forms with inserts. In the preferred embodiment, each cassette is a dual roller cassette to include infeed and outfeed rollers. The cassettes are sized relative to the wheels so that there is a lateral gap between adjacent seal wheels, so that the cassettes produce a seal pattern composed of a series of seal strips having a uniform gap therebetween. Each cassette is spring loaded at its top side and pressure is uniformly applied to the system using a pressure plate to compress all cassette springs simultaneously.
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