| 摘要 |
An improved alternative breathable gas source for underwater breathing to be used in combination with a main air tank and a pressure regulator connected to a main air tank. The improvement comprises combining an auxiliary air tank having a manifold and pressure regulator, where the manifold is in fluid communication with the main air tank and is provided with a check valve therein for precluding air flow from the manifold to the main air tank. Thus when the main air tank is filled with pressurized air, the auxiliary air tank is also filled with pressurized air, but should the main air tank become depressured, the check valve prevents air flow from the auxiliary air tank to the main tank. The improvement also comprises an alternate air supply system having an auxiliary air tank where the auxiliary air tank is in combination with a pressure regulator that regulates air to a pressure for comfortable breathing. Another improvement consists of the auxiliary air tank being capable of providing breathable air while also being capable of filling a buoyancy control device.
|
