Shock tube tip tester
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United States of America Patent
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-
Dec 2, 2008
Grant Date -
Oct 11, 2007
app pub date -
Sep 27, 2005
filing date -
Sep 27, 2004
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A shock tube tip tester determines reliability of a shock tube tip used in a blasting machine. The blasting machine, using shock tubes for non-electric firing, relies on a shock tube tip to initiate the blast. The shock tube tip tester measures the amount of wear and indicates when a particular shock tube tip should be replaced to help prevent misfires or delays in production due to no-fires. The shock tube tip tester includes a mechanical filter suitable for filtering the shock wave pulse created by the shock tube tip, a pressure sensor for sensing the filtered shock wave pulse, and a microprocessor for classifying the shock tube tip into one of several predefined conditions based on either a peak of the shock wave pulse or an area under the shock wave pulse.
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