Operation apparatus for a sewing machine
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United States of America Patent
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-
Aug 23, 1994
Grant Date -
N/A
app pub date -
Mar 19, 1992
filing date -
Mar 29, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An operation apparatus for a sewing machine has an electric motor for driving the sewing machine and electronic components for operating and controlling the electric motor and sewing machine; the electric motor and electronic components are accommodated within a common, heat-conductive box-type body effective to dissipate the heat generated inside the body by the electric motor and the electronic components to the outside.
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