Systems and methods for underwater descent rate reduction

Details Systems and methods for underwater descent rate reduction Systems and methods for underwater descent rate reduction

2011-08-23

2011-08-23

Avila, Stephen (Department: 3617)

Buoys, rafts, and aquatic devices

Buoy

Marker buoy

C441S022000

Reexamination Certificate

active

08002599

ABSTRACT:
Systems and methods for underwater descent rate reduction are provided. In one embodiment, a method for underwater descent rate reduction for an underwater delivery vehicle is provided. The method comprises: opening a first valve based on a first hydrostatic pressure to permit water to flow into a first chamber of a hydrostatic pressure driven piston assembly; developing a pressure differential across a piston head separating the first chamber from a second chamber of the hydrostatic pressure driven piston assembly; pushing the piston head into the second chamber to extend a piston rod from the hydrostatic pressure driven piston assembly; and pivoting a deflecting flap downward into a direction of vehicle descent as the piston rod extends.

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