A dispensing system includes a first metering system including a first housing, a first metering rod at least partially disposed within the first housing, and a first assembly defining a first metering chamber and releasably connected to the first housing. The first metering rod linearly translates through the first metering chamber so as to dispense a discrete amount of a first material from the first metering chamber. The dispensing system also includes a second metering system including a second housing, a second metering rod at least partially disposed within the second housing, and a second assembly defining a second metering chamber and releasably connected to the second housing. The second metering rod linearly translates through the second metering chamber so as to dispense a discrete amount of a second material from the second metering chamber. The first metering system is releasably connected to the second metering system.

A dispensing system includes a first metering system including a first housing, a first metering rod at least partially disposed within the first housing, and a first assembly defining a first metering chamber and releasably connected to the first housing. The first metering rod linearly translates through the first metering chamber so as to dispense a discrete amount of a first material from the first metering chamber. The dispensing system also includes a second metering system including a second housing, a second metering rod at least partially disposed within the second housing, and a second assembly defining a second metering chamber and releasably connected to the second housing. The second metering rod linearly translates through the second metering chamber so as to dispense a discrete amount of a second material from the second metering chamber. The first metering system is releasably connected to the second metering system.

A container (2; 2) comprises: a cylindrical body (11; 32); a plunger (6; 38) inserted into the body, the plunger being movable along the body; a plug (18; 43) fixedly positioned within the body at a longitudinal distance from the plunger such that the body, the plug (18; 43) and the plunger form a cavity (19; 44); a channel (20) leading through the plug; and a needle (7) connected with the channel (20), a free end of the needle being positioned outside the cavity, wherein the needle is fully housed within the hollow cylindrical body. A dispensing device (1) for dispensing specific amounts of fluids comprises: at least one attachment means (17) for removably attaching a respective container (2; 2) and at least one actuating device comprising at least one stem (3), wherein each stem is movable to engage a respective container.

A container (2; 2) comprises: a cylindrical body (11; 32); a plunger (6; 38) inserted into the body, the plunger being movable along the body; a plug (18; 43) fixedly positioned within the body at a longitudinal distance from the plunger such that the body, the plug (18; 43) and the plunger form a cavity (19; 44); a channel (20) leading through the plug; and a needle (7) connected with the channel (20), a free end of the needle being positioned outside the cavity, wherein the needle is fully housed within the hollow cylindrical body. A dispensing device (1) for dispensing specific amounts of fluids comprises: at least one attachment means (17) for removably attaching a respective container (2; 2) and at least one actuating device comprising at least one stem (3), wherein each stem is movable to engage a respective container.

Apparatus, systems and methods in which an oscillating piston fluid meter assembly comprises a cylinder housing separated by a piston into two chambers and measures the flow volume of a fluid by tracking the distance traveled by the piston along a pushrod running through the cylinder. Preferably, the oscillating fluid meter assembly has two inlets, two outlets, two end-caps, and four passages each coupling one inlet or outlet to a chamber. A valve is positioned at a junction between two passages and can simultaneously control the two passages by shutting them both or allowing only one of them to be open. Magnets, springs, and various damping mechanisms are used to control the movement of the pushrod. Since fluid cannot pass through the system without triggering the traveling of the piston tracked by a tracking device, the oscillating fluid meter is highly sensitive and can detect a very small flow volume.

Apparatus, systems and methods in which an oscillating piston fluid meter assembly comprises a cylinder housing separated by a piston into two chambers and measures the flow volume of a fluid by tracking the distance traveled by the piston along a pushrod running through the cylinder. Preferably, the oscillating fluid meter assembly has two inlets, two outlets, two end-caps, and four passages each coupling one inlet or outlet to a chamber. A valve is positioned at a junction between two passages and can simultaneously control the two passages by shutting them both or allowing only one of them to be open. Magnets, springs, and various damping mechanisms are used to control the movement of the pushrod. Since fluid cannot pass through the system without triggering the traveling of the piston tracked by a tracking device, the oscillating fluid meter is highly sensitive and can detect a very small flow volume.

A system and related method for precisely monitoring fluid or gas flows, comprising: a flow meter comprising a mechanical metering component; the mechanical metering component comprising a ferrous material; a three-axis magnetic field sensor for sensing fluctuations of a magnetic field arising from movements of the ferrous material, and specifically, for sensing a magnetic field vector of the magnetic field; computer processing for receiving data from the magnetic field sensor and storing magnetic field behavior data representing time behavior of the magnetic field vector in three space dimensions; calibration programming for analyzing and learning a magnetic signature of the meter; programming for storing a unique calibration pattern of the magnetic signature representing baseline behaviors thereof; and comparison programming for comparing behaviors of the magnetic field during operation with the calibrated baseline behaviors and thereby deducing flows which are occurring during operation as a function of time under various conditions.

A dispensing system includes a first metering system including a first housing, a first metering rod at least partially disposed within the first housing, and a first assembly defining a first metering chamber and releasably connected to the first housing. The first metering rod linearly translates through the first metering chamber so as to dispense a discrete amount of a first material from the first metering chamber. The dispensing system also includes a second metering system including a second housing, a second metering rod at least partially disposed within the second housing, and a second assembly defining a second metering chamber and releasably connected to the second housing. The second metering rod linearly translates through the second metering chamber so as to dispense a discrete amount of a second material from the second metering chamber. The first metering system is releasably connected to the second metering system.

A dispensing system includes a first metering system including a first housing, a first metering rod at least partially disposed within the first housing, and a first assembly defining a first metering chamber and releasably connected to the first housing. The first metering rod linearly translates through the first metering chamber so as to dispense a discrete amount of a first material from the first metering chamber. The dispensing system also includes a second metering system including a second housing, a second metering rod at least partially disposed within the second housing, and a second assembly defining a second metering chamber and releasably connected to the second housing. The second metering rod linearly translates through the second metering chamber so as to dispense a discrete amount of a second material from the second metering chamber. The first metering system is releasably connected to the second metering system.

The invention relates to a fluid meter (27) comprising a housing (28) defining at least one crankcase (29) and two cylinders (25, 26), a crankshaft (11) disposed in the crankcase (29), two pistons (3, 4) respectively mounted in the cylinders (25, 26) for reciprocal movement, a first connecting rod (12) connected to one of the pistons (3) and to the crankshaft (11) for rotating the crankshaft (11) in response to the movement of the one piston (3), and a second connecting rod (13) connected to the other piston (4) and to the crankshaft (11) for rotating the crankshaft (11) in response to the movement of the other piston (4), wherein the first and second connecting rods (12, 13) have yoke slots (16, 17) for receiving a crank pin (19) radially offset from the crankshaft (11). The invention is characterized in that the first connecting rod (12) has a guiding rod (20) extending in a longitudinal direction of the cylinders, the guiding rod (20) being adapted to engage a corresponding cavity (22) in the second connecting rod (13) to support and guide the connecting rods (12, 13) in relation to each other during movement. The invention further relates to a multiple fluid meter assembly (61) comprising at least two fluid meters (27) as defined above, and to a fuel dispensing unit comprising a fluid meter (27) or a multiple fluid meter (61) as defined above.