Heat sealing apparatus
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United States of America Patent
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-
Oct 12, 1993
Issued Date -
N/A
app pub date -
Dec 30, 1991
filing date -
Jun 18, 1990
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An improved apparatus (10) for thermally bonding indicia to fabric disclosed comprises relatively movable upper and lower platens (12,14) with a heat source in one of the platens for heating it. A lift lever (18) with an over-center locking assembly (20) is operated to urge the platens (12,14) together and a pressure adjustment assembly (40) is adjustable for varying the pressure therebetween. A pressure sensor (54) senses pressure between the platens (12,14) during closure. A temperature sensor (69) responds to the temperature of the heated platen (12) for controlling heat source (16) to regulate the platen (12) temperature. An optical switch (70) is responsive to platen (12,14) closure for initiating a timing sequence. A programmable controller (48) is programmable to monitor sets of temperature, pressure and platen closure combinations and a visual display (46) displays instructions and the time, temperature and pressure readings necessary for operating the apparatus (10) in the language of choice.
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