Sewing machine with a ventilation wheel and a rotation speed sensor attached to an electric motor
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United States of America Patent
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Aug 6, 2002
Grant Date -
N/A
app pub date -
Sep 20, 2001
filing date -
Oct 11, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In connection with an electric motor (12) used for operating a sewing machine, which has a fan wheel (17) and a speed sensor (25), the fan wheel (17) and the screen disk (18) of the speed sensor (25), as well as a belt pulley (19) of the belt drive (10), are combined into a multi-function wheel (15).
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