US 12,330,759 B2
Auto-adjustable buoyancy pressure vessel for SCUBA
Aviad Cahana, Kula, HI (US)
Filed by Aviad Cahana, Kula, HI (US)
Filed on Aug. 1, 2022, as Appl. No. 17/878,638.
Application 17/878,638 is a continuation in part of application No. 17/265,174, granted, now 11,472,523, previously published as PCT/US2019/047519, filed on Aug. 21, 2019.
Claims priority of provisional application 62/721,443, filed on Aug. 22, 2018.
Prior Publication US 2022/0363356 A1, Nov. 17, 2022
Int. Cl. B63C 11/22 (2006.01)
CPC B63C 11/2245 (2013.01) [B63C 2011/2272 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A diving system for use by a diver, comprising:
(a) a pressure vessel defining a breathing mixture chamber and a fluid chamber, each defining a volume, wherein the two chambers are separate from each other, where the volumes of the two chambers are correlated such that an increase in the volume of one chamber correlates with a decrease in the volume of the other chamber, and wherein the breathing mixture chamber is configured to contain a breathing mixture pressurized above ambient and to supply the breathing mixture to a gas communication system for breathing by a diver;
(b) a fluid transfer system in fluid communication with the fluid chamber and with an environment external to the fluid chamber;
(c) a control system responsive to input from the diver, sensors, or a combination thereof, configured to control the fluid transfer system to communicate fluid between the ambient environment and the fluid chamber, where the control system is responsive to pressure in the mixing chamber, the fluid chamber, or both.