Self-vacuum arrangement for pneumatic equipment
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United States of America Patent
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Mar 18, 2008
Grant Date -
Sep 27, 2007
app pub date -
Mar 21, 2006
filing date -
Mar 21, 2006
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A self-vacuum arrangement for pneumatic equipment is provided. A Venturi device having first and second ports and a central tap is provided. A first check valve having a first port operably coupled with the central tap of the Venturi device is configured to prevent pneumatic flow from the central tap through the first check valve. Optionally included is a second valve having a first port operably coupled with the first port of the Venturi device, and a second port operably coupled with the second port of the Venturi device.
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