An example apparatus includes a housing including an inlet and an outlet. The example apparatus also includes a rotor defining a bore. The rotor is disposed in the housing. The example apparatus further includes a piston disposed in the bore. A motor is operatively coupled to the rotor to rotate the rotor from a first position to a second position. The bore is to be in fluid communication with the inlet and the outlet when the rotor is in the second position.

A device for detecting a movement of a piston of a lubricant distributor includes a movable actuator including a first magnet element, and a movable indicator including a second magnet element. The actuator is configured to be moved from an initial actuator position to an end actuator position by a movement of the piston, and the actuator and the indicator are configured and disposed such that a magnetic force prevails between them such that the indicator is moved from an initial indicator position to an end indicator position by the movement of the actuator from the initial actuator position toward the end actuator position.

In one embodiment there is provided a bottle assembly to dispense a liquid. The assembly includes a bottle, a syringe, a cap and collar. The assembly includes a child-resistant adult-friendly retaining portion to permit the removal of the cap and collar. The syringe is configured to draw liquid from the bottle at a precise dosage and then when the cap and collar is removed the user can expel the liquid.

A positive displacement metering system measures the rate of travel of a free piston in a cylinder of known volume to determine the flow rate of a fluid out of the cylinder. The system may also measure and record the inlet and outlet pressures or the differential pressure between the fluid inlet and outlet. The control program positions a four-way valve which may function as an adjustable metering orifice in response to the measured flow rate and/or changes in the inlet and outlet pressures to achieve the desired flow rate. At the end of each stroke, the four-way valve is repositioned to reverse fluid flow through the metering cylinder. The system may revise the valve position settings for both forward and reverse strokes based on the measured time required for a full stroke of the piston within the cylinder at a certain valve position or a measured rate of movement of the free piston.

A positive displacement metering system measures the rate of travel of a free piston in a cylinder of known volume to determine the flow rate of a fluid out of the cylinder. The system may also measure and record the inlet and outlet pressures or the differential pressure between the fluid inlet and outlet. The control program positions a four-way valve which may function as an adjustable metering orifice in response to the measured flow rate and/or changes in the inlet and outlet pressures to achieve the desired flow rate. At the end of each stroke, the four-way valve is repositioned to reverse fluid flow through the metering cylinder. The system may revise the valve position settings for both forward and reverse strokes based on the measured time required for a full stroke of the piston within the cylinder at a certain valve position or a measured rate of movement of the free piston.

An attachment for a beverage container may comprise a cap configured to attach to an opening in the beverage container. The cap comprises an opening. The attachment also comprises a tube passing through the cap. The opening in the cap is located proximate to a first end of the tube and a second end of the tube is configured to be located within the beverage container when the cap is attached to the beverage container, such that a beverage contained in the beverage container can flow through the tube and out of the opening in the cap. The attachment also comprises a container attached to the tube and configured to hold a liquid. The container comprises an opening to allow the liquid to flow from the container into the tube and out of the opening in the cap. The attachment also comprises a restrictor between the opening of the container and the tube to control and/or restrict the flow of the liquid from the container into the tube. The restrictor and the tube are configured such that the liquid begins to exit the opening in the cap before the beverage begins to exit the opening in the cap.

An attachment for a beverage container may comprise a cap configured to attach to an opening in the beverage container. The cap comprises an opening. The attachment also comprises a tube passing through the cap. The opening in the cap is located proximate to a first end of the tube and a second end of the tube is configured to be located within the beverage container when the cap is attached to the beverage container, such that a beverage contained in the beverage container can flow through the tube and out of the opening in the cap. The attachment also comprises a container attached to the tube and configured to hold a liquid. The container comprises an opening to allow the liquid to flow from the container into the tube and out of the opening in the cap. The attachment also comprises a restrictor between the opening of the container and the tube to control and/or restrict the flow of the liquid from the container into the tube. The restrictor and the tube are configured such that the liquid begins to exit the opening in the cap before the beverage begins to exit the opening in the cap.

An example apparatus includes a housing including an inlet and an outlet. The example apparatus also includes a rotor defining a bore. The rotor is disposed in the housing. The example apparatus further includes a piston disposed in the bore. A motor is operatively coupled to the rotor to rotate the rotor from a first position to a second position. The bore is to be in fluid communication with the inlet and the outlet when the rotor is in the second position.

An example apparatus includes a housing including an inlet and an outlet. The example apparatus also includes a rotor defining a bore. The rotor is disposed in the housing. The example apparatus further includes a piston disposed in the bore. A motor is operatively coupled to the rotor to rotate the rotor from a first position to a second position. The bore is to be in fluid communication with the inlet and the outlet when the rotor is in the second position.

A syringe assembly contains a fluid material, preferably two reactive fluid materials. The syringe assembly includes a syringe body having at least one barrel and a piston assembly movable within the barrel. An activatable plunger is in contact with the piston assembly effects dispensing movement of the piston assembly. The piston assembly includes an outer piston in sealed engagement with the barrel and an inner piston in sealed engagement with the outer piston. The inner piston is movable within the outer piston with and against the bias of a spring to maintain the inner piston in contact with the reactive material in the barrel upon thermal expansion and contraction of the reactive material.