Percussive driving apparatus for environmental sampling or test device
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United States of America Patent
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Nov 11, 2014
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app pub date -
Feb 4, 2011
filing date -
Feb 12, 2010
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Abstract
A percussive driving apparatus for an environmental sampling or test device. The driving apparatus comprises a percussion stem (10), a weighted percussion plunger (20) having a longitudinal bore through which the percussion stem (10) is received, the percussion plunger (20) being slidable along a length of the percussion stem (10), a lift element (80) to permit lifting of the percussion plunger (20) along at least a portion of said length of the percussion stem (10), and a percussion pad (30) affixed to the percussion stem (10) at or near a first end thereof. The percussion pad (30) is configured to receive percussive driving force from the percussion plunger (20). The percussion tube (10) is also adapted at the first end to connect to a probe (40) (for example a shielded or unshielded piezometer, or a split spoon sampler, a seepage meter, long term data logging monitoring device, or seismic device) for environmental sampling and/or testing.
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