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US4913234A
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Fluid driven screw type sonic oscillator-amplifier system for use in freeing a stuck pipe
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US5030034A
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Soil pollution monitoring system and apparatus
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US4885098A
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Sonic method for facilitating the removal of solid particles from a slurry
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US4883532A
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Sonic method for facilitating the extraction of minerals from ore in a leachant
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AU1925888A
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Sonic apparatus and method for facilitating the extraction of minerals from ore in a leachant
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US4817712A
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Rod string sonic stimulator and method for facilitating the flow from petroleum wells
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US4780138A
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Sonic apparatus and method for facilitating the extraction of minerals from ore in a leachant
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US4836299A
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Sonic method and apparatus for installing monitor wells for the surveillance and control of earth contamination
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US4778279A
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Sonic agitator with multi phased vibration bars
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US4824258A
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Fluid driven screw type (moyno) sonic oscillator system
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US4848486A
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Method and apparatus for transversely boring the earthen formation surrounding a well to increase the yield thereof
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US4815328A
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Roller type orbiting mass oscillator with low fluid drag
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US4736794A
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Method for the sonic cementing of down hole well casings
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US4791899A
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Acoustic detonation suppression in internal combustion engine
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US4830758A
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Sonic method and apparatus for winning minerals from liquid carriers
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US4702315A
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Method and apparatus for sonically stimulating oil wells to increase the production thereof
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US4652309A
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Sonic method and apparatus for heap leaching
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US4693325A
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Sonic drill employing orbiting crank mechanism
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US4665980A
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Method for improving well production by sonically driving granular medium installed in well
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US4653587A
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Method and apparatus for the sonic cementing of wells in porous formations
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