Sewing machine with multidirectional upper and lower feed devices
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Jul 18, 1989
Grant Date -
N/A
app pub date -
Sep 15, 1987
filing date -
Sep 26, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A sewing machine is provided with a upper and a lower feed device with which a workpiece consisting of several plies can, when making arched and/or corner type seams, be transported in always constant position of orientation without mutual displacement of the plies. For this purpose the feed direction of both feed devices can be varied either by changing their direction of action or by geometric addition of at least two motion components.
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Family
International Classification(s)
Cited Art Landscape
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