A device (100) for pressure reduction is configured with an improved flow guidance. The improved flow guidance causes an advantageous reduction of flow noise and a reduction of icing problems.

Portable vessels, regulators, apparatus, and methods for storing fluids under pressure are disclosed.

The present invention provides an underwater breathing device. The device includes a canister having a pump installed therein, wherein air outside of the canister communicates with the interior of the canister via the pump; a mouthpiece; and an elongate tube interconnecting the interior of the canister and the mouthpiece. Methods of making and using the device are also disclosed.

An integrated manifold system combines in a single, compact, unitary assembly a one-piece, machined manifold for connecting air supply cylinders with a first stage regulator and recharge port. The manifold body has at least one bottle port configured to removably receive a bottle of pressurized air, a first stage regulator chamber, a quick disconnect fitting port, an air channel in fluid communication with the at least one bottle port and the first stage regulator chamber, and an outlet channel in fluid communication with the first stage regulator chamber.

An integrated manifold system is disclosed that combines in a single, compact, unitary assembly a one-piece, machined manifold for connecting air supply cylinders with a first stage regulator and recharge port. The manifold body has at least one bottle port configured to removably receive a bottle of pressurized air, a first stage regulator chamber, a quick disconnect fitting port, an air channel in fluid communication with the at least one bottle port and the first stage regulator chamber, and an outlet channel in fluid communication with the first stage regulator chamber.

An attachable, detachable pressure reducing regulator for use with a primary high-pressure gas source, wherein the high-pressure chamber of said regulator includes a secondary gas IN portal, with a one-way valve, through which the primary container source may be refilled from an external gas source, via the high-pressure chamber of the said regulator, either independently of or concurrently during its use as a pressure reducing regulator.

The present invention provides an underwater breathing device. The device comprises a canister having a pump installed therein, wherein air outside of the canister communicates with the interior of the canister via the pump; a mouthpiece; and an elongate tube interconnecting the interior of the canister and the mouthpiece. Methods of making and using the device are also disclosed.

A wearable safety system for either diving, harsh or anoxic environments, or for individuals at high risk for respiratory and/or cardiac failure is disclosed. The wearable safety system includes biometric monitoring and provides cardiac and/or respiratory support in the event that the wearer experiences cardiac and/or respiratory failure. There are different configurations of the wearable safety system designed to work with different use cases, and to provide different levels of protection. In the case of diving, the wearable safety system additionally utilizes data collected by the dive computer to advise a rescue diver as to the best course of action in managing an unconscious diver's ascent and can also inflate the diver's buoyancy control device (BCD) or onboard personal flotation device.

A first reducing stage of two-stage regulators includes a first chamber that receives a high pressure breathable gas, a second chamber for the breathable gas at an intermediate pressure, and a pressure reducing valve that connects the first and the second chamber. The valve includes a valve seat with an opening for communication between the first and the second chamber, and a plug cooperating with the valve seat and movable between closed and open positions and vice versa. The plug, dynamically connected to a sensor exposed to the outer pressure, includes a transmission mechanism of the mechanical stress due to the outer pressure on the plug, which has a member that stops and starts the kinematic transmission chain according to the mechanical stress due to the outer pressure. Such member includes mechanical stress sensors that stop the kinematic transmission chain when the mechanical stress is below a predetermined threshold value and that restart the kinematic transmission chain when the mechanical stress is equal or above the threshold value.

A first stage regulator for two-stage delivering assemblies includes a first chamber connected through an inlet to a high pressure gas source; a second chamber for the breathable gas at an intermediate pressure, which is connected to a user; a pressure reducing valve connecting the first and the second chambers and having a valve seat and a cut-off that cooperates with the valve seat and is displaceable from a closed position to an open position thereof and vice versa. The cut-off is dynamically connected to a sensor exposed to the external pressure and includes a transmitting element of the mechanical stress exerted on the sensor by the external pressure. The sensor includes a movable wall that is sealingly slidable in a housing chamber and constitutes the interface wall towards the outside, and the transmitting mechanism connects the movable wall with the cut-off.