Buoyancy-based, underwater propulsion system and method

Details Buoyancy-based, underwater propulsion system and method Buoyancy-based, underwater propulsion system and method

2008-02-11

2010-06-22

Lagman, Frederick L (Department: 3672)

Hydraulic and earth engineering

Diving

Suit or accessory therefor

C114S315000, C114S274000

Reexamination Certificate

active

07740418

ABSTRACT:
An apparatus for underwater propulsion. The apparatus may include a hydrofoil, a buoyancy compensator connected to the hydrofoil, a tank containing air, and a controller regulating the passage of air from the tank into the buoyancy compensator. The controller may also regulate the escape of air from the buoyancy compensator. By positioning the hydrofoil underwater and alternating between positive and negative angles of attack, a diver may generate forward propulsion by manipulating the controller to correspondingly alternate the buoyant force produced by the buoyancy compensator between levels below and above neutral buoyancy.

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