Abstract: Regulator for underwater breathing apparatus of the type comprising a box-shaped body provided with a pressure-controlled membrane which divides the inside of the body into a first chamber communicating with the atmosphere and a second chamber communicating with a compressed-air inlet valve operated by a lever cooperating with said pressure-controlled membrane and also provided with an air discharge valve and a tube equipped with mouthpiece, characterized in that the box-shaped body of said regulator is made at least partially of thermally conductive polymers. Advantageously, said thermally conductive polymers used consist of engineering polymers having a matrix of polyamide, polycarbonate or PET (polyethylene terephthalate) or TPU (thermoplastic polyurethane) or the like containing metallic or graphite fibre or carbon fibre fillers dispersed within the polymer matrix.

Abstract: Regulator for underwater breathing devices including a relatively hard material box-like body having a pipe for the connection with a mouthpiece, at least one air inlet duct and at least one opening on which-it is positioned one air exhaust valve. The regulator box-like body is externally covered by at least one layer of a suitably shaped relatively soft material.

Abstract: Distributor for underwater breathing apparatus, including: a box-shaped body housing a device for regulating the air flow coming from a source of pressurized air; a tube connected to said box-shaped body and communicating with a mouthpiece; an air intake duct connected to said box-shaped body by an intake valve; and one or more discharge ducts connected to said box-shaped body. The air intake duct includes a structure which induces rotation of the air flow coming from the source of pressurized air, thus reducing its intake speed into the tube connected to the mouthpiece.

Abstract: Regulator for underwater breathing devices including a relatively hard material box-like body having a pipe for the connection with a mouthpiece, at least one air inlet duct and at least one opening on which it is positioned one air exhaust valve; in said regulator the box-like body is externally covered by at least one layer of a suitably shaped relatively soft material.

Abstract: Distributor for underwater breathing apparatus, comprising: a box-shaped body housing a device for regulating the air flow coming from a source of pressurized air; a tube connected to said box-shaped body and showing a mouthpiece; an air intake duct connected to said box-shaped body by means of an intake valve; and one or more discharge ducts connected to said box-shaped body. Within said air intake duct means are arranged which induce to rotation the air flow coming from the source of pressurized air, thus reducing its intake speed into the tube connected to the mouthpiece.

Abstract: Distributor for underwater breathing apparatus, comprising: a box-shaped body housing a device for regulating the air flow coming from a source of pressurized air; a tube connected to said box-shaped body and showing a mouthpiece; an air intake duct connected to said box-shaped body by means of an intake valve; and one or more discharge ducts connected to said box-shaped body. Within said distributor, on the lower edge of said tube showing the mouthpiece, barriers are provided against possible water seepages into the box-shaped body, said barriers being made so as to leave the passage section of said tube connected to the mouthpiece unchanged.

Abstract: A regulator for an underwater breathing apparatus includes a box-shaped body enclosing the air flow-regulating device, a tube connected to the box-shaped body supporting a mouthpiece, an air inlet duct connected to the box-shaped body through an inlet valve operated by the regulating device, and a deflector element. The deflector is fitted so that it swings inside the regulator between a position in which the deflector partially shuts off the opening of the mouthpiece tube, in the inhalation phase, and another position in which the opening of the mouthpiece tube is at its maximum size, in the exhalation phase.

Abstract: Regulator for underwater breathing apparatus comprising a box-like body of plastic material, from which a tube provided with mouthpiece, and equiped with an outlet port branches out. The box-like body of said regulator is provided with one or more metallic inserts integrated in the walls of said body.