Powder filling method, powder filling device, and powder filling nozzle
AssigneeRicoh Company, Ltd.
InventorHirosato Amano
Life of this patent
Estimating the term…
Abstract
A powder filling nozzle is used for filling up a container with a powder mixed with a gas and in a fluidized state. The power filling nozzle comprises a tubular body having an opening for discharging the powder in the fluidized state into the container, and a gas separating unit disposed near the opening of the tubular body and allowing the gas delivered together with the powder in the tubular body to pass through the gas separating unit but not allowing the powder to pass through the gas separating unit. The gas separating unit serves to set the opening in a plugged state by the powder separated from the gas, so that the delivery of the powder from the tubular body into the container is stopped.
Claims39
A powder filling nozzle used for filling up a container with a powder mixed with a gas and in a fluidized state, comprising:
- a tubular body having an opening for discharging the powder in the fluidized state into the container;
- and
- a gas separating unit disposed near the opening of the tubular body and allowing the gas delivered together with the powder in the tubular body to pass through the gas separating unit but not allowing the powder to pass through the gas separating unit,
- wherein the gas separating unit serves to set the opening in a plugged state by the powder separated from the gas, so that the delivery of the powder from the tubular body into the container is stopped.
A powder filling device including a hermitically sealed powder fluidization unit and a powder filling nozzle, the powder filling device filling a powder, mixed with a gas and changed to a fluidized state by the powder fluidization unit, into a container through a delivery path by using the powder filling nozzle, the powder filling nozzle comprising:
- a tubular body having an opening for discharging the powder in the fluidized state into the container;
- and
- a gas separating unit disposed near the opening of the tubular body and allowing the gas delivered together with the powder in the tubular body to pass through the gas separating unit but not allowing the powder to pass through the gas separating unit,
- wherein the gas separating unit serves to set the opening in a plugged state by the powder separated from the gas, so that the delivery of the powder from the tubular body into the container is stopped.
A powder filling method for filling up a container with a powder in a fluidized state by using a powder filling device which includes a hermitically sealed powder fluidization unit and a powder filling nozzle, the powder filling nozzle comprising a tubular body having an opening for discharging the powder in the fluidized state into the container, and a gas separating unit disposed near the opening of the tubular body and allowing a gas delivered together with the powder in the tubular body to pass through the gas separating unit but not allowing the powder to pass through the gas separating unit, the powder filling method comprising the steps of:
- mixing the powder contained in the powder fluidization unit with the gas to obtain the powder in the fluidized state;
- delivering the powder in the fluidized state from the fluid fluidization unit into the powder filling nozzle via a delivery path so that the powder is discharged into the container from the powder filling nozzle;
- and
- setting the opening of the tubular body in a plugged state by the powder separated from the gas by the gas separating unit so that the delivery of the powder from the tubular body to the container is stopped.
Dependencies are inferred from the claim text.