A coupling device for connecting at least two fluid-conducting components may include a connector that may have a securing ring. A locking ring may be arranged on the connector and be configured to transition in a circumferential direction between a securing position and a releasing position. The locking ring may include at least one locking element configured to interact with the securing ring. The locking element may be configured resilient in a radial direction. A connecting piece may be configured axially adjustable with respect to the connector and may include an outer securing groove. The locking element may radially engage into the securing groove when the locking ring is in the securing position to secure the connecting piece to the connector in the axial direction.

In certain embodiments, a vial adaptor comprises a housing configured to couple the adaptor with a vial, an access channel, a regulator channel, and a regulator assembly. The access channel is configured to facilitate withdrawal of fluid from the vial when the adaptor is coupled to the vial. The regulator channel is configured to facilitate a flow of a regulating fluid from the regulator assembly to compensate for changes in volume of a medical fluid in the vial. In some embodiments, the regulator assembly includes a flexible member configured to expand and contract in accordance with changes in the volume of the medical fluid in the vial. In some embodiments, the flexible member is substantially free to expand and contract. In some embodiments, the flexible member is not partly or completely located in a rigid enclosure.

A medium connector including a passage configured to allow for the flow of medium, and a multi-portion engagement surface positioned about the passage. The multi-portion engagement surface includes a first surface portion, and a second surface portion. The first surface portion is configured to provide an interference fit with a corresponding sealing surface of a mating connector. The second surface portion is configured to provide a clearance fit with the corresponding sealing surface of the mating connector. The ratio of the first surface portion and the second surface portion is selected to regulate an engagement force between the medium connector and the mating connector.

A container assembly for use with a high-pressure liquid chromatography (HPLC) instrument is disclosed, in which the container assembly, when coupled to a source of pressurized gas, provides fluid medium to the HPLC instrument at positive pressure. The container assembly has an external exterior container shell, an internal fluid container for holding fluid medium, an interstitial volume between the external exterior container shell and the internal fluid container, a port for fluidly connecting the volume to a pressurized gas source, and a port for fluidly connecting the internal fluid container to the HPLC instrument. As a pressurized gas in the interstitial volume increases, fluid medium flows out of the port connected to the internal fluid bag and container assembly at a positive pressure. A system incorporating the container assembly, and method of use of the same, are also disclosed.

A connector for transferring fluid, the connector may have a first port, a second port, and a third port which may be fluidly coupled together at an internal chamber with a first valve element therein controlling fluid flow through the second port. The connector can have ribs extending along the internal chamber to provide a fluid path around the valve element and between the first port and the internal chamber. The valve element can separate the internal chamber into an air chamber and a liquid chamber, and the third port can be continuously coupled to the liquid chamber regardless of a position of the valve element.

A withdrawal system (1) for a container (2) and comprises an immersion pipe (4) mounted on and projecting into the container (2) as well as a withdrawal head (5) that is attachable to the immersion pipe (4) by means of a rotary connection. The withdrawal head (5) attached to the immersion pipe (4) is secured by means of a mechanical locking unit.

The inside wall of a fuel tank, and a sub-component are provided with locking means in the form of complementary formations that allow the sub-component to be coupled to the inside surface of the fuel tank wall. Interlocking of the complementary formations is achieved by moving the sub-component towards the wall providing angular movement to the sub-component relative to the fuel tank. A biasing structure imparts a tension between the sub-component and the fuel tank.

This document describes fluid handling couplings. For example, this document describes fluid handling couplings that include manually openable valves and that are configured for aseptic fluid handling usage. In some embodiments, the valves are manually openable by rotation of a collar of the fluid handling couplings.

In certain embodiments, a vial adaptor comprises a housing configured to couple the adaptor with a vial, an access channel, a regulator channel, and a regulator assembly. The access channel is configured to facilitate withdrawal of fluid from the vial when the adaptor is coupled to the vial. The regulator channel is configured to facilitate a flow of a regulating fluid from the regulator assembly to compensate for changes in volume of a medical fluid in the vial. In some embodiments, the regulator assembly includes a flexible member configured to expand and contract in accordance with changes in the volume of the medical fluid in the vial. In some embodiments, the flexible member is substantially free to expand and contract. In some embodiments, the flexible member is not partly or completely located in a rigid enclosure.

Described herein is a method and apparatus for providing an easy-flow flushing system to flushing out an engine and an out-drive. The easy-flow flushing system may include a cap with a tubular member, a capping member, and a sleeve. The tubular member may include a first outer surface, an inner surface, a coil circumscribing the tubular member to urge a sleeve to a closed configuration, an opening along the first outer surface, and a ball bearing seated in the opening. The capping member may be coupled to the tubular member and the capping member can include a capping member end and a sealing ring disposed along a second outer surface. The sleeve may be coupled to the tubular member. The sleeve may include an inner surface, where the sleeve is formed and shaped to slide along a portion of the first outer surface of the tubular member.