This disclosure relates to modular locking connectors that enable discrete and fully separate components to be easily, quickly, and interchangeably connected together to result in a fully functional buoyancy compensator device. These separate components may include shoulders, waistbands, back panels, bladders or other buoyancy chambers, pockets including those for ballasting weights, and accessories such as knives, lights, signaling devices and the like.

This disclosure relates to tank wedge connectors to support cylindrical objects, for example to support scuba tanks, particularly designed for use in underwater operations on swimming and diving gear. An embodiment of the tank wedge connectors includes arranging the tank wedge connectors in an opposing pair, forming a cradle. Another embodiment of the disclosed tank wedge connectors includes a rail component which the wedge connectors can slide on to separate and expand, with one of the rails including detents for the wedges to be positioned and fixed at a desired spacing. A third embodiment of these tank wedge connectors includes being mounted to a flexible surface which allows the connectors to conform to cylindrical objects of varying radii.

This disclosure relates to a modular cord connector that enables two cords to connect together and release. An embodiment of this cord connector disclosure is designed for use on cords integral to a gas release on buoyancy compensator devices. The preferred embodiment of this cord connector, shown for use on a buoyancy compensator device, includes modular male and female portions which include a T-shaped post on the male portion and a pathway with detents configured to retain the male portion when engaged with the female portion.

In one aspect, an embodiment of the invention provides a back pack cinch for a strap securing a breathing tank to a buoyancy compensation device worn by a diver. The back pack cinch includes a cinch body. A cover is rotatably mounted to the cinch body. The cover has an open position and a closed position. The cover in the closed position is configured to tension a strap. A tab is rotatably mounted to the cinch body. The tab has an open position and a closed position. In the closed position, a portion of the strap is pressed against the serrated bearing surface by the tab to hold the portion of the strap in a fixed position.

In one aspect, an embodiment of the invention provides a back pack cinch for a strap securing a breathing tank to a buoyancy compensation device worn by a diver. The back pack cinch includes a cinch body. A cover is rotatably mounted to the cinch body. The cover has an open position and a closed position. The cover in the closed position is configured to tension a strap. A tab is rotatably mounted to the cinch body. The tab has an open position and a closed position. In the closed position, a portion of the strap is pressed against the serrated bearing surface by the tab to hold the portion of the strap in a fixed position.

System for rapid release of a weight usable by a diver, comprising: said weight (2); a housing (3) constrainable to the diver and in which the weight (2) is placed; said housing (3) comprising an extraction opening (30) for extracting the weight (2) from the housing (3); an anchorage (4) and a seat (5) in which the anchorage (4) may be positioned, said seat (5) being constrained to the housing (3); the anchorage (4) is constrained to the weight (2). The anchorage (4) is removable from the seat (5) to allow the removal of the weight (2). The seat (5) has a first inlet/outlet mouth (511) for the anchorage (4) which is at least partly turned not towards the extraction opening (30) for extracting the weight (2) from the housing (3), but in the opposite direction.

System for rapid release of a weight usable by a diver, comprising: said weight (2); a housing (3) constrainable to the diver and in which the weight (2) is placed; said housing (3) comprising an extraction opening (30) for extracting the weight (2) from the housing (3); an anchorage (4) and a seat (5) in which the anchorage (4) may be positioned, said seat (5) being constrained to the housing (3); the anchorage (4) is constrained to the weight (2). The anchorage (4) is removable from the seat (5) to allow the removal of the weight (2). The seat (5) has a first inlet/outlet mouth (511) for the anchorage (4) which is at least partly turned not towards the extraction opening (30) for extracting the weight (2) from the housing (3), but in the opposite direction.

A device to facilitate weight operation in a Buoyancy Control Device (BCD) is described. The device may include a tubular body made from waterproof fabrics. The tubular body may have an exterior, a top opening, and a bottom opening. The device may include a semi-rigid tab and a pair of fastening assemblies attached to the exterior of the tubular body. The top opening may have boning that supports the top opening in an open state. The top end of the semi-rigid tab is fixed to the exterior and is close to the top opening of the tubular body, the bottom end of the semi-rigid tab is in contact with the exterior as a result of a rigidity of the semi-rigid tab. The pair of fastening assemblies are positioned on opposite sides of the semi-rigid tab.

A device to facilitate weight operation in a Buoyancy Control Device (BCD) is described. The device may include a tubular body made from waterproof fabrics. The tubular body may have an exterior, a top opening, and a bottom opening. The device may include a semi-rigid tab and a pair of fastening assemblies attached to the exterior of the tubular body. The top opening may have boning that supports the top opening in an open state. The top end of the semi-rigid tab is fixed to the exterior and is close to the top opening of the tubular body, the bottom end of the semi-rigid tab is in contact with the exterior as a result of a rigidity of the semi-rigid tab. The pair of fastening assemblies are positioned on opposite sides of the semi-rigid tab.

A backrest for a scuba diver comprising a shaped plate supporting at least one air cylinder, at least a first strap comprising an upper right portion configured to fit around the scuba diver's right shoulder, an upper left portion configured to fit around the scuba diver's left shoulder and a lower portion configured to fit around the scuba diver's abdomen, wherein the shaped plate has a first right slide-through element and a first left slide-through element adapted to connect the upper right portion and the upper left portion, respectively, to the lower portion of the first strap, at least one weight pocket constrained to the lower portion of the first strap, wherein there is provided an anti-torsion means connecting the at least one weight pocket to the shaped plate and configured to oppose the torsion of the first strap in proximity to at least one of the first slide-through elements.