Abstract: A valve comprising a valve spindle housing located in the side of the chamber and including a first fluid inlet and a first fluid outlet, and a cylinder open along a portion of a longitudinal axis of the cylinder and rotatably mounted in the valve spindle housing. The cylinder is positioned in one position so that the cylinder completely obstructs the valve spindle housing outlet, not allowing any fluid to pass around the cylinder. The cylinder walls are solid except for having openings through a portion of the cylinder, so that when rotated to a closed position, the solid portion of the cylinder fully obstructs the valve spindle housing outlet, and when rotated to an open position, the first fluid can pass into the inside of the cylinder and then through the openings and out of the valve spindle housing.

Abstract: An apparatus for mixing a first fluid into a flow path of a second fluid, the apparatus comprising: a chamber enclosing the flow path, the chamber including a second fluid first inlet for receiving its respective fluid. The apparatus also includes a second inlet arranged downstream of the first inlet and receiving the first fluid, as well as an outlet arranged downstream of the second inlet for discharging a mixture of the first fluid and the second fluid. The second inlet flows into the flow path and is formed by a shared fluid injector mounted transverse to the axial direction that one fluid and the two fluid flows through its chamber. The flow path includes two respective throttle bodies, each of which is pivotally arranged inside the chamber and attached to opposed sides of the chamber for controlling the flow area of the flow path.

Abstract: A device for increasing the buoyancy of a human body in water includes an inflatable tube member (1), a coupling unit (4) including a first part (8) and a second part (11), the coupling unit together with the tube member being arranged to form an endless float ring when the device is in the active state, a gas cartridge (6) having a punctureable membrane, a penetration element (23) arranged to puncture the membrane, a gas duct extending between the first part of the coupling unit and the tube member, wherein the gas cartridge and the penetration element are mutually displaceable in the direction towards each other. A first coupling member (20) of the first part is pivotally arranged about a pivot between an inactive position and an actuating position, in which the first coupling member, direct or indirect, causing the mutual displacement of the gas cartridge and the penetration element.

Abstract: A device for increasing the buoyancy of a human body in water includes an inflatable tube member (1), a coupling unit (4) including a first part (8) and a second part (11), the coupling unit together with the tube member being arranged to form an endless float ring when the device is in the active state, a gas cartridge (6) having a punctureable membrane, a penetration element (23) arranged to puncture the membrane, a gas duct extending between the first part of the coupling unit and the tube member, wherein the gas cartridge and the penetration element are mutually displaceable in the direction towards each other. A first coupling member (20) of the first part is pivotally arranged about a pivot between an inactive position and an actuating position, in which the first coupling member, direct or indirect, causing the mutual displacement of the gas cartridge and the penetration element.