Method and apparatus for closing mattresses
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United States of America Patent
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Jun 18, 1996
Issued Date -
N/A
app pub date -
Mar 17, 1994
filing date -
Aug 19, 1992
priority date (Note) -
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Abstract
A method for forming a partial mattress sack which prevents radial bunching includes feeding first and second panels having different edge lengths at different rates through a sewing machine to form the partial mattress sack. An apparatus for sewing the partial mattress sack includes a mechanism for driving upper and lower walking feet at varying rates and a mechanism for driving the upper walking foot at the same speed as a second lower walking foot.
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Family
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