Process using porous supports and vacuum hold down device using said supports
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United States of America Patent
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-
Sep 20, 2022
Grant Date -
Oct 8, 2020
app pub date -
Jun 3, 2020
filing date -
Mar 20, 2014
priority date (Note) -
In Force
status (Latency Note)
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Abstract
The present invention relates to a porous support (20) intended to be removably positioned on a top side (11b) of a perforated plate (11) of a table (10) of a vacuum hold down device (1), the perforated plate having a bottom side (11a) connected to a vacuum system (13) for producing reduced pressure on the bottom side, wherein the porous support includes a perforated tray (21) provided on one side (21a) with outer reliefs (23) and on the other side (21b) with a blade penetrable porous structure (22) fixed thereon. The invention further relates to a vacuum hold down device (1) including 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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