Powder Feeder
AssigneeC4 Carbides Limited
InventorsChoon Yen Kong, Pavels Sevcenko
Life of this patent
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Abstract
The present disclosure relates to a powder feeder. The powder feeder includes a main chamber with a gas inlet and a powder outlet. At least one secondary chamber is configured to receive powder. The powder feeder also includes a shaver element. The shaver element is positioned directly above an opening in the at least one secondary chamber. The secondary chamber further includes a piston movable towards the shaver element so as to urge powder upwards. Examples of a shaver element include a rotatable screw, a conveyor belt, and a rotating disc with protrusions.
Claims20
A powder feeder, comprising:
- a main chamber comprising a first end and a second end;
- a gas inlet that is connectable to an inert gas supply, the gas inlet being disposed at the first end of the main chamber;
- a powder outlet disposed at the second end of the main chamber;
- at least one secondary chamber comprising an opening, the at least one secondary chamber being disposed between the gas inlet and the powder outlet and the at least one secondary chamber being configured to supply powder to the main chamber through the opening;
- and
- a rotatable screw arranged substantially perpendicularly relative to the at least one secondary chamber, the rotatable screw being configured to remove a layer of powder as the powder enters the main chamber through the opening and to transport the powder to the powder outlet;
- wherein, during operation of the powder feeder, threads of the rotatable screw extend over the opening and at least partially over the powder outlet.
A powder feeder, comprising:
- a main chamber comprising a first end and a second end;
- a gas inlet that is connectable to an inert gas supply, the gas inlet being disposed at the first end of the main chamber;
- a powder outlet disposed at the second end of the main chamber;
- at least one secondary chamber comprising an opening, the at least one secondary chamber being disposed between the gas inlet and the powder outlet and the at least one secondary chamber being configured to supply powder to the main chamber through the opening;
- and
- a conveyor belt configured to remove a layer of powder as the powder enters the main chamber through the opening;
- wherein, during operation of the powder feeder, the conveyor belt extends over the gas inlet, the opening, and the powder outlet.
Dependencies are inferred from the claim text.