Volume Contraction and Substrate Fluidization as a Means to Reduce Drag on Bodies Moving Through a Granular Substrate
A method or corresponding apparatus in an example embodiment of the present invention relates to penetrating a particulate substrate using a compact, low-energy, reversible, and dynamic device for burrowing through particulate substrates. In one preferred embodiment, the apparatus includes at least one vessel and a displacement module coupled with the vessel. The actuation of the displacement module fluidizes the particulate substrate proximate to the vessel and thereby reduces resistance of the particulate substrate to movement of the vessel and causes further penetration of the apparatus through the particulate substrate. The example embodiment utilizes volume contraction and localized fluidizing to move through substrates.
Researchers
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method and apparatus for penetrating particulate substrates
United States of America | Granted | 8,496,410
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