Variable walking foot apparatus for a sewing machine for mattresses
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United States of America Patent
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-
Oct 21, 1997
Issued Date -
N/A
app pub date -
Mar 20, 1996
filing date -
Mar 17, 1994
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A method and apparatus for forming a partial mattress sack which prevents radial bunching of the mattresses. The method includes the steps of feeding first and second panels having different edge lengths at different rates through a sewing machine to form the partial mattress sack. The apparatus includes a variable speed upper walking foot having an automatic speed adjustment.
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Family
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Cited Art Landscape
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