Porous supports and vacuum hold down device using said supports
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United States of America Patent
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Oct 20, 2020
Grant Date -
Sep 24, 2015
app pub date -
Feb 12, 2015
filing date -
Mar 20, 2014
priority date (Note) -
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status (Latency Note)
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Abstract
The present invention relates to a porous support intended to be removably positioned on a top side of a perforated plate of a table of a vacuum hold down device, the perforated plate having a bottom side connected to a vacuum system for producing reduced pressure on the bottom side, wherein the porous support comprises a perforated tray provided on one side with outer reliefs and on the other side with a blade penetrable porous structure fixed thereon. The invention further relates to a vacuum hold down device comprising such a support. The invention also relates to a process for replacing a first porous support by a second porous support in such a device.
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