A probe assembly configured to selectively restrict fluid flow through an outlet of a closed transfer system. The probe assembly has an elongate probe body with a top end portion, a bottom end portion, an outer wall, and an internal structure defining a fluid chamber extending from the bottom end portion to the top end portion. The fluid chamber has a fluid chamber inlet at the bottom end portion extending through the outer wall into the fluid chamber and a fluid chamber outlet at the top end portion extending from the fluid chamber through the outer wall. A probe tip with a cylindrical bore is configured to engage the top end portion of the elongate probe body and a probe tip outlet is configured to be in fluid communication with the fluid chamber outlet. A rotating head located circumjacent to the probe tip and adjacent to the probe tip outlet is configured to rotate about the probe tip. The rotating head having an inner surface, an outer surface, and a vane extending from the inner surface through the outer surface.

Embodiments of the invention provide a probe assembly configured to selectively restrict fluid flow through an outlet of a closed transfer system. The probe assembly has an elongate probe body with a top end portion, a bottom end portion, an outer wall, and an internal structure defining a fluid chamber extending from the bottom end portion to the top end portion. The fluid chamber has a fluid chamber inlet at the bottom end portion extending through the outer wall into the fluid chamber and a fluid chamber outlet at the top end portion extending from the fluid chamber through the outer wall. A probe tip with a cylindrical bore is configured to engage the top end portion of the elongate probe body and a probe tip outlet is configured to be in fluid communication with the fluid chamber outlet. A rotating head located circumjacent to the probe tip and adjacent to the probe tip outlet is configured to rotate about the probe tip. The rotating head having an inner surface, an outer surface, and a vane extending from the inner surface through the outer surface.

Embodiments of the invention provide a probe assembly configured to selectively restrict fluid flow through an outlet of a closed transfer system. The probe assembly has an elongate probe body with a top end portion, a bottom end portion, an outer wall, and an internal structure defining a fluid chamber extending from the bottom end portion to the top end portion. The fluid chamber has a fluid chamber inlet at the bottom end portion extending through the outer wall into the fluid chamber and a fluid chamber outlet at the top end portion extending from the fluid chamber through the outer wall. A probe tip with a cylindrical bore is configured to engage the top end portion of the elongate probe body and a probe tip outlet is configured to be in fluid communication with the fluid chamber outlet. A rotating head located circumjacent to the probe tip and adjacent to the probe tip outlet is configured to rotate about the probe tip. The rotating head having an inner surface, an outer surface, and a vane extending from the inner surface through the outer surface.

A probe assembly configured to selectively restrict fluid flow through an outlet of a closed transfer system. The probe assembly has an elongate probe body with a top end portion, a bottom end portion, an outer wall, and an internal structure defining a fluid chamber extending from the bottom end portion to the top end portion. The fluid chamber has a fluid chamber inlet at the bottom end portion extending through the outer wall into the fluid chamber and a fluid chamber outlet at the top end portion extending from the fluid chamber through the outer wall. A probe tip with a cylindrical bore is configured to engage the top end portion of the elongate probe body and a probe tip outlet is configured to be in fluid communication with the fluid chamber outlet. A rotating head located circumjacent to the probe tip and adjacent to the probe tip outlet is configured to rotate about the probe tip. The rotating head having an inner surface, an outer surface, and a vane extending from the inner surface through the outer surface.

A probe assembly configured to selectively restrict fluid flow through an outlet of a closed transfer system. The probe assembly has an elongate probe body with a top end portion, a bottom end portion, an outer wall, and an internal structure defining a fluid chamber extending from the bottom end portion to the top end portion. The fluid chamber has a fluid chamber inlet at the bottom end portion extending through the outer wall into the fluid chamber and a fluid chamber outlet at the top end portion extending from the fluid chamber through the outer wall. A probe tip with a cylindrical bore is configured to engage the top end portion of the elongate probe body and a probe tip outlet is configured to be in fluid communication with the fluid chamber outlet. A rotating head located circumjacent to the probe tip and adjacent to the probe tip outlet is configured to rotate about the probe tip. The rotating head having an inner surface, an outer surface, and a vane extending from the inner surface through the outer surface.

A liquid gauge is disclosed. The liquid gauge includes a plurality of holes configured to receive a plurality of liquid droplets of a first size. The liquid gauge also includes a plurality of curved structures configured to form an aggregated liquid droplet of a second size using the plurality liquid droplets of the first size. The liquid gauge further includes a plurality of counting electrodes configured to generate a corresponding electrical signal. The liquid gauge further includes a processing unit configured to count the aggregated liquid droplet of the second size received by each of the counting electrode and also configured to compute a total amount of liquid fall based on the aggregated liquid droplet of the second size.

A liquid gauge is disclosed. The liquid gauge includes a plurality of holes configured to receive a plurality of liquid droplets of a first size. The liquid gauge also includes a plurality of curved structures configured to form an aggregated liquid droplet of a second size using the plurality liquid droplets of the first size. The liquid gauge further includes a plurality of counting electrodes configured to generate a corresponding electrical signal. The liquid gauge further includes a processing unit configured to count the aggregated liquid droplet of the second size received by each of the counting electrode and also configured to compute a total amount of liquid fall based on the aggregated liquid droplet of the second size.

A system is provided for marketing bedding. The system includes an apparatus for measuring air flow through an article of bedding having a body defining a chamber and an opening that is in communication with the chamber, an air flow generator positioned within the chamber. The system is used to measure the air flow through an article of bedding that covers the opening such that air flow created by the air flow generator passes through the article of bedding. Methods of use are provided.

A system is provided for marketing bedding. The system includes an apparatus for measuring air flow through an article of bedding having a body defining a chamber and an opening that is in communication with the chamber, an air flow generator positioned within the chamber. The system is used to measure the air flow through an article of bedding that covers the opening such that air flow created by the air flow generator passes through the article of bedding. Methods of use are provided.

A coupler for use in a closed transfer system is provided. The coupler includes a body with an axial slot, an outlet, and a probe that extends from a first end portion to a second end portion and at least partially received within the body, the probe configured to be movable relative to the body between a first position and a second position to selectively control the flow of fluid through the outlet. A handle is coupled to the probe and configured to interface with the axial slot, wherein the handle is configured to move axially along the axial slot to move the probe between the first position and the second position.