Abstract: A hollow tube attachable at one end to a container of fluid is provided at the other end with a fluid conduit termination disk separated from the end of the hollow tube by a space that defines a fluid discharge opening. A slide valve on the exterior of the tube is biased into a closed position engaging the fluid conduit termination disk and precluding fluid transfer until the discharge opening is inside a receiving vessel. A barricade is disposed across the interior of the tube at an inclination relative to the longitudinal axis thereof. Formed through the barricade is at least one elongated aperture extending continuously from a first longitudinal position in the tube to a second longitudinal position in the tube that is located further from the container of fluid than is the first longitudinal position.

Abstract: A hollow tube attachable at one end to a container of fluid is provided at the other end with an end cap in which is formed a fluid discharge opening through which to transfer fluid. The end cap includes a first portion inserted into the tube, while a second portion remains exterior thereto. A slide valve on the exterior of the tube is biased into a closed position, precluding fluid transfer until the discharge opening is inside a receiving vessel. An air vent passageway in the form of an air vent recess in the outer surface of the first portion of the end cap communicates between the interior of the container and the exterior of the fluid conduit. When the receiving vessel is filled, fluid in the receiving vessel closes entry to the air vent passageway, terminating air flow into the container and stopping fluid flow through the conduit. Capillary sections of reduced cross-sectional area relative that of the air vent passageway are located at either end of the air vent recess.

Abstract: A fluid conduit formed of a hollow tube attached at one end to a container of fluid is provided at the other end with an end cap in which is formed a fluid discharge opening through which to transfer fluid. A slide valve on the exterior of the conduit is biased into a closed position, precluding fluid transfer until the discharge opening is inside a receiving vessel. An air vent tube within the conduit communicates between the interior of the container and the exterior of the fluid conduit and admits air into the container to facilitate even-flowing transfers after the transfer of an initial quality of fluid without the admission of air into the container reduces the air pressure therein sufficiently below ambient pressure to curtail further fluid transfer. Fluid filling a receiving container closes entry to the air vent tube when the receiving vessel is filled, terminating air flow into the container and stopping fluid flow through the conduit.