Provided is an electro/hydraulic valve for use in a hydrocarbon production well, an electrically surface-controlled subsurface safety valve, and a method of operating an electrically surface-controlled subsurface safety valve. The electro/hydraulic valve for use in a hydrocarbon production well, in one aspect, includes a fluid chamber, and an electro/thermal expansion pump having a fluid inlet and a fluid outlet, and further wherein an inlet check valve is positioned in fluid communication between the fluid chamber and the fluid inlet and an outlet check valve is positioned in fluid communication between the fluid outlet and a hydraulically controlled actuation member.

An exemplary mouthpiece assembly includes a mouthpiece. The mouthpiece includes a sucking end, a connecting end, and an air passage. The sucking end defines an air outlet, and the connecting end defines an air inlet. The mouthpiece assembly further includes a partition element dividing the air passage into an air intake chamber and an air outlet chamber. The mouthpiece further includes a sidewall defining at least one first through hole and at least one second through hole, the first through hole is in communication with the air intake chamber, and the second through hole is in communication with the air outlet chamber. The mouthpiece assembly further includes an air adjusting ring defining at least one gap. The air adjusting ring is rotatable relative to mouthpiece, so that an overlapped area among the first through hole, the at least one gap, and the second through hole can be changed.

A valve is mounted in a first bore in a first separable section of a transmission to block or allow fluid flow through the first bore to a second bore in a second transmission section depending on whether the first and second sections are joined together or separated. A movable portion of the valve is responsive to an actuator during relative movement of the transmission sections to shift between fluid flow open and fluid flow closed positions. The valve can include a valve housing fixed in the first bore and a carrying plunger biased to the fluid blocking position and responsive to the actuator for movement to the fluid flow open position. The valve forms a fluid flow path between the first and second bores across the gap between the facing surfaces of the joined transmission sections.

A valve is mounted in a first bore in a first separable section of a transmission to block or allow fluid flow through the first bore to a second bore in a second transmission section depending on whether the first and second sections are joined together or separated. A movable portion of the valve is responsive to an actuator during relative movement of the transmission sections to shift between fluid flow open and fluid flow closed positions. The valve can include a valve housing fixed in the first bore and a carrying plunger biased to the fluid blocking position and responsive to the actuator for movement to the fluid flow open position. The valve forms a fluid flow path between the first and second bores across the gap between the facing surfaces of the joined transmission sections.

A rapid-connect gas coupler is shown and described herein. In an embodiment, the rapid-connect gas coupler includes a spring-loaded probe within a probe cavity, which is defined by a housing and one or more latch segment. The probe can engage with a gas connector, which causes the latch segment to engage and couple with the gas connector.

A rapid-connect gas coupler is shown and described herein. In an embodiment, the rapid-connect gas coupler includes a spring-loaded probe within a probe cavity, which is defined by a housing and one or more latch segment. The probe can engage with a gas connector, which causes the latch segment to engage and couple with the gas connector.

A connecting device for a medical infusion system includes a connection piece which has a connecting profile for the connection of a functional part of the infusion system. The connecting device also has a resiliently flexible, cup-like valve body which is arranged in the connection piece and has a valve casing and cap-shaped top region which is provided with a slit arrangement. Further, the connecting device has a dimensionally stable base portion on which a base ring of the valve casing is supported and which is firmly connected to the connection piece. In the unloaded initial state, the valve casing has a convex internal contour which, starting from the cap-shaped top region, first expands in the direction of the base ring and subsequently narrows again, forming an O-like internal longitudinal section. The connecting device can be in the form of a three-way stopcock for an infusion system.

A connecting device for a medical infusion system includes a connection piece which has a connecting profile for the connection of a functional part of the infusion system. The connecting device also has a resiliently flexible, cup-like valve body which is arranged in the connection piece and has a valve casing and cap-shaped top region which is provided with a slit arrangement. Further, the connecting device has a dimensionally stable base portion on which a base ring of the valve casing is supported and which is firmly connected to the connection piece. In the unloaded initial state, the valve casing has a convex internal contour which, starting from the cap-shaped top region, first expands in the direction of the base ring and subsequently narrows again, forming an O-like internal longitudinal section. The connecting device can be in the form of a three-way stopcock for an infusion system.

This document describes devices and methods for reducing liquid spillage, such as fluid coupling devices that include one or more apertures that reduce spillage when the fluid coupling devices are disconnected. In some embodiments, the one or more apertures are designed with features to increase a level of acceleration that liquid within an internal volume of the fluid coupling devices would need to be exposed to in order to spill from the internal volume via the one or more apertures.

This document describes devices and methods for reducing liquid spillage, such as fluid coupling devices that include one or more apertures that reduce spillage when the fluid coupling devices are disconnected. In some embodiments, the one or more apertures are designed with features to increase a level of acceleration that liquid within an internal volume of the fluid coupling devices would need to be exposed to in order to spill from the internal volume via the one or more apertures.