Machine for making filter bags for infusion products
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United States of America Patent
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Dec 27, 2016
Grant Date -
Oct 15, 2015
app pub date -
Dec 19, 2013
filing date -
Dec 21, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
A machine (100) for making filter bags (1) for infusion products comprises: a station (2) for feeding a first continuous strip (3) of thermoformable filter material; a station (4) for heating the first continuous strip (3); a continuously rotating drum (5) provided with a series of dies (9), and a corresponding series of punches (10) configured for plastically deforming a portion of the first strip (3) and making a three-dimensional chamber (C) to contain a dose (12) of infusion product; a station (11) for dosing doses (12) of the infusion product; a feed station (13) for feeding a second strip (14) of filter material; a joining station (15) for joining the first strip (3) to the second strip (14) to close the three-dimensional chamber (C); and a cutting station for making single filter bags (1).
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