Sealing particulate matter in a micro-abrasive blasting device
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United States of America Patent
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Jun 9, 2015
Grant Date -
Nov 17, 2011
app pub date -
Jul 26, 2011
filing date -
Mar 10, 2005
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Abstract
A micro-abrasive blasting device comprises a mixing chamber, a delivery conduit extending from external the mixing chamber to the mixing chamber and a discharge conduit extending from the mixing chamber. Embodiments having delivery and discharge conduits extending from the same, or from opposite ends of the mixing chamber are disclosed. Abrasive material may selectively be sealed in the chamber by positioning the discharge conduit to abut the inlet port. Other sealing techniques are disclosed, such as capping or plugging the delivery and discharge conduits. The chamber may be spherical to deliver consistent powder perturbation at all mixing chamber orientations. Methods of using the device are disclosed. Methods of making the device by blow molding are disclosed.
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