Patent ID: 7112111
Filing Date: 2006-09-26
Classification: B63B,B63G

Abstract:
1. A closed loop buoyancy system comprising two identical chambers, one of said chambers identified as a buoyancy chamber and the other identified as a pressure chamber; means for connecting said chambers so that said chambers abut one another, said connecting means containing a portion that extends into said pressure chamber; a t-shaped fitting attached to said connecting means and extending into said pressure chamber; a high volume, one-way check valve positioned on one end of said t-shaped fitting; a small capillary tube positioned on the other end of said t-shaped fitting; a valve positioned between said capillary tube and said t-shaped fitting; an electric pump or solenoid valve regulating the flow of air through said capillary tube; a ballast; and means for exerting pressure on said buoyancy chamber effecting a pressure increase on said pressure chamber.