A build material container outlet structure, and a build material nozzle structure is described. The build material container outlet structure comprises a connector to releasably connect to a nozzle structure of an external aspiration system. The outlet structure comprises an aspiration channel to aspire build material from a build material container to the nozzle structure of the external aspiration system. The outlet structure comprises a protrusion protruding from an inner wall of the aspiration channel, to extend into an end portion of a tube of the nozzle structure that is inserted into the aspiration channel and retain a valve element of the nozzle structure in an open configuration.

A build material container outlet structure, and a build material nozzle structure is described. The build material container outlet structure comprises a connector to releasably connect to a nozzle structure of an external aspiration system. The outlet structure comprises an aspiration channel to aspire build material from a build material container to the nozzle structure of the external aspiration system. The outlet structure comprises a protrusion protruding from an inner wall of the aspiration channel, to extend into an end portion of a tube of the nozzle structure that is inserted into the aspiration channel and retain a valve element of the nozzle structure in an open configuration.

A connector system for medical fluid includes a male connector and a female connector that have a closed configuration when detached from one another. The first end of the male connector is configured to mate with a first end of the female connector. When the male connector is coupled with the female connector, complementary structures engage to move seals away from ports in the male connector and the female connector, opening a fluid pathway through the connectors. The mating ends of the connectors are not exposed to the medical fluid when the connectors are coupled so that when the connectors are disconnected, the mating ends are substantially free of residual medical fluid.

A connector system for medical fluid includes a male connector and a female connector that have a closed configuration when detached from one another. The first end of the male connector is configured to mate with a first end of the female connector. When the male connector is coupled with the female connector, complementary structures engage to move seals away from ports in the male connector and the female connector, opening a fluid pathway through the connectors. The mating ends of the connectors are not exposed to the medical fluid when the connectors are coupled so that when the connectors are disconnected, the mating ends are substantially free of residual medical fluid.

The present invention provides a double poppet valve coupling comprising a first coupling half (1) and a second coupling half (2), wherein each of the first and second coupling halves comprises a housing (3) and a poppet valve assembly (7) with a spring biased poppet element (9), wherein the housing comprises a through-going bore (4), a first connecting end (5), a second connecting end (6) and a poppet seat (11), and the first and the second coupling halves may be coupled together via their respective first connecting ends (5) such that the respective poppet valve assemblies are opened providing a continuous flow path through the coupling; the end section of the poppet element comprises a pressure equalizing fluid channel (36a,36b).

The present invention provides a double poppet valve coupling comprising a first coupling half (1) and a second coupling half (2), wherein each of the first and second coupling halves comprises a housing (3) and a poppet valve assembly (7) with a spring biased poppet element (9), wherein the housing comprises a through-going bore (4), a first connecting end (5), a second connecting end (6) and a poppet seat (11), and the first and the second coupling halves may be coupled together via their respective first connecting ends (5) such that the respective poppet valve assemblies are opened providing a continuous flow path through the coupling; the end section of the poppet element comprises a pressure equalizing fluid channel (36a,36b).

Apparatuses, systems, and methods for providing non-expert installation of HVAC systems are provided. The HVAC system includes an indoor unit, an outdoor unit, a first pre-charged refrigerant line-set, a second pre-charged refrigerant line-set, and a line-set coupler, each containing pre-pressurized refrigerant securely positioned therein prior to engagement between two or more of the aforementioned elements. The first pre-charged refrigerant line-set is couplable between an indoor unit refrigerant port of the indoor unit and a first coupler end of the line-set coupler. The second pre-charged refrigerant line-set is couplable between an outdoor unit refrigerant pot of the outdoor unit and a second coupler end of the line-set coupler.

The connection assembly (100) which includes a flange (140) has two internal orifices (150) crossing through and centered on orifice axes (A150) parallel to each other, a front surface (142) and a rear surface (144) parallel to a transverse plane (P140) transverse to the orifice axes (A150), two fluidic coupling elements (170), that have a male body (172) received in a corresponding internal orifice, and a cover (120), configured for being attached to a support (110) in a mounted configuration of the connection assembly. The flange can move with respect to the cover according to a movement supported by the transverse plane, whereas for each male body, a second gasket (188) is interposed radially between the male body and an internal radial surface (S162) of the corresponding internal orifice, each male body being mounted in the corresponding internal orifice and can be tilted with respect to the corresponding orifice axis.

The connection assembly (100) which includes a flange (140) has two internal orifices (150) crossing through and centered on orifice axes (A150) parallel to each other, a front surface (142) and a rear surface (144) parallel to a transverse plane (P140) transverse to the orifice axes (A150), two fluidic coupling elements (170), that have a male body (172) received in a corresponding internal orifice, and a cover (120), configured for being attached to a support (110) in a mounted configuration of the connection assembly. The flange can move with respect to the cover according to a movement supported by the transverse plane, whereas for each male body, a second gasket (188) is interposed radially between the male body and an internal radial surface (S162) of the corresponding internal orifice, each male body being mounted in the corresponding internal orifice and can be tilted with respect to the corresponding orifice axis.

A coupling having a male nipple (12) and a female coupler (14), in which one or both of the coupling members provides a simplified construction with a reduced number of parts for minimizing assembly time and overall costs. The coupling member(s) may include unique interlocking elements (38, 49), such as flexible finger elements, that slidably secure the valve sleeve(s) to the valve bodies. The female coupler (14) may include a valve body (23) with a unique interface, such as interlocking teeth, for rotatably coupling to a thread sleeve (51). The thread sleeve (51) may have a bendable web for facilitating assembly of a spring for an actuating sleeve. The actuating sleeve may be formed with a hollow annular internal chamber. The male nipple (12) may include the actuating sleeve instead of the female coupler (14). Other features also may be optimized, such as via additive manufacturing techniques, including coupling threads, fluid orifices, biasing members, and seal members.