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.
Claims10
A powder feeder, comprising:
- a main chamber with a powder outlet;
- at least one secondary chamber comprising an opening, the secondary chamber configured to supply powder to the main chamber through the opening;
- and
- a shaver element disposed above the at least one secondary chamber and 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 shaver element remains positioned simultaneously both (i) directly above the opening and (ii) at least partially above the powder outlet;
- wherein the shaver element is in the form of a circular disc with projections extending beyond a plane of the disc to act as blades;
- and
- wherein the circular disc is configured to direct powder from an interior side of the circular disc to an exterior side of the circular disc.
A powder feeder, comprising:
- a main chamber with a powder outlet;
- at least one secondary chamber comprising an opening, the secondary chamber configured to supply powder to the main chamber through the opening;
- and
- a shaver element disposed above the at least one secondary chamber and 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 shaver element remains positioned simultaneously both (i) directly above the opening and (ii) at least partially above the powder outlet;
- wherein the shaver element is in the form of a circular disc with projections extending beyond a plane of the disc to act as blades;
- and
- wherein the powder outlet, the opening of the at least one secondary chamber, and the shaver element are disposed on a common axis.
Dependencies are inferred from the claim text.