A metering system for distributing particulate material includes a meter housing containing a metering wheel. An inlet and/or outlet of the meter housing provides a projection extending into the opening of the inlet and/or outlet so that the flow of particulate material is optimized. This can provide even distribution of such material, including at low rotating speeds such as 5 RPM, while using a polyurethane metering wheel with straight vanes. In one aspect, projections extending into the inlet on opposing sides can substantially form an hourglass shape, and the outlet can comprise a substantially diagonal shape, analogous to a parallelogram, instead of more traditional rounded/rectangular shapes.

A metering system for distributing particulate material includes a meter housing containing a metering wheel. An inlet and/or outlet of the meter housing provides a projection extending into the opening of the inlet and/or outlet so that the flow of particulate material is optimized. This can provide even distribution of such material, including at low rotating speeds such as 5 RPM, while using a polyurethane metering wheel with straight vanes. In one aspect, projections extending into the inlet on opposing sides can substantially form an hourglass shape, and the outlet can comprise a substantially diagonal shape, analogous to a parallelogram, instead of more traditional rounded/rectangular shapes.

A handheld dispenser (10) for dispensing a powder. The dispenser (10) comprises a container (12) comprising a first opening (14), and a powder storage volume (16) for storing the powder (100). The dispenser (10) also comprises a rotatable member (18), located in the container (12); and a handle (20) connected to the rotatable member (18). The dispenser (10) also comprises an actuator (22) at least partially located on the handle (20), wherein the actuator (22) is actuatable to rotate the rotatable member (18) in the container (12) for allowing powder (100) located in the powder storage volume 16 of the container to travel past the rotatable member (18) and out from the first opening (14). The powder storage volume (16) is preferably no more than 200 ml.

A handheld dispenser (10) for dispensing a powder. The dispenser (10) comprises a container (12) comprising a first opening (14), and a powder storage volume (16) for storing the powder (100). The dispenser (10) also comprises a rotatable member (18), located in the container (12); and a handle (20) connected to the rotatable member (18). The dispenser (10) also comprises an actuator (22) at least partially located on the handle (20), wherein the actuator (22) is actuatable to rotate the rotatable member (18) in the container (12) for allowing powder (100) located in the powder storage volume 16 of the container to travel past the rotatable member (18) and out from the first opening (14). The powder storage volume (16) is preferably no more than 200 ml.

A powder feeder for a cold spray system includes a rotatable drum body, a housing surrounding the drum body, and a support structure. The support structure couples to the housing and supports the housing such that the drum body rotates about a rotation axis to provide in-situ blending of powder disposed within an interior of the drum body.

A powder feeder for a cold spray system includes a rotatable drum body, a housing surrounding the drum body, and a support structure. The support structure couples to the housing and supports the housing such that the drum body rotates about a rotation axis to provide in-situ blending of powder disposed within an interior of the drum body.

An open unit housing is configured for removably and rotatably mounting therein at least a dosage feeder of a dosaging apparatus for dosaging a particulate chemical material when mounted above a body of a liquid material, with an interior of the open unit housing being exposed to ambient conditions. The open unit housing comprises a housing body portion having an interior surface defining a cavity exposed to ambient conditions and having an inlet opening facing upwardly for receiving the chemical material from an external source, and an outlet opening for disposing therethrough dosages of the chemical material. The housing body portion has a front end and an axially opposite rear end, the front and rear ends having inner surfaces that bound the cavity. The rear end has a rear opening configured to allow removable mounting of the dosage feeder therethrough into the cavity, and the front end has a front opening configured to allow a front moving member of the dosage feeder to extend therethrough to be connected to a driving member of the apparatus.

An open unit housing is configured for removably and rotatably mounting therein at least a dosage feeder of a dosaging apparatus for dosaging a particulate chemical material when mounted above a body of a liquid material, with an interior of the open unit housing being exposed to ambient conditions. The open unit housing comprises a housing body portion having an interior surface defining a cavity exposed to ambient conditions and having an inlet opening facing upwardly for receiving the chemical material from an external source, and an outlet opening for disposing therethrough dosages of the chemical material. The housing body portion has a front end and an axially opposite rear end, the front and rear ends having inner surfaces that bound the cavity. The rear end has a rear opening configured to allow removable mounting of the dosage feeder therethrough into the cavity, and the front end has a front opening configured to allow a front moving member of the dosage feeder to extend therethrough to be connected to a driving member of the apparatus.

Provided is a measuring device including: a tablet measuring part that includes a plurality of housing parts that are each configured to house one tablet; a measuring-number selecting part that enables to select a measuring number of tablets by selecting a number of housing parts available for housing tablets out of the plurality of the housing parts; and a measuring-number fixing part that locks the measuring number selecting part to prevent the measuring number selected by the measuring-number selecting part from being changed.

Provided is a measuring device including: a tablet measuring part that includes a plurality of housing parts that are each configured to house one tablet; a measuring-number selecting part that enables to select a measuring number of tablets by selecting a number of housing parts available for housing tablets out of the plurality of the housing parts; and a measuring-number fixing part that locks the measuring number selecting part to prevent the measuring number selected by the measuring-number selecting part from being changed.