Plasma-arc spray anode and gun body
AssigneeThermal Spray Technologies, Inc.
InventorDaryl E. Crawmer
Life of this patent
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Abstract
The invention recites a plasma-arc spray gun comprising a cathode and an anode defining a longitudinal axis. The anode further includes an external surface and an internal chamber, the internal chamber extending from a first end to a second end. At least a portion of the internal chamber is defined by revolving a non-linear curve about the longitudinal axis. The plasma-arc spray gun also includes a gun body supporting the cathode and the anode.
Claims20
A plasma-arc spray gun comprising:
- a cathode;
- an anode having a longitudinal axis, the anode including an external surface and an internal chamber, the internal chamber extending from a first end to a second end, at least a portion of the internal chamber being defined as a non-linear curve revolved about the longitudinal axis;
- and
- a gun body supporting the cathode and the anode.
A plasma-arc spray gun powered by an external power source having a first lead and a second lead, the gun comprising:
- a gun body;
- an anode supported by the gun body and electrically connected to the first lead of the power source, the anode having a longitudinal axis and including an external surface and an internal chamber, the internal chamber having a first open end receiving a flow of gas and a second open end discharging a flow of plasma, the internal chamber including a portion defined as a non-linear curve revolved about the longitudinal axis;
- a cathode supported by the gun body and electrically connected to the second lead of the power source;
- and
- a gas injector providing the flow of gas through the first open end of the anode;
- wherein the power source initiates an arc between the anode and the cathode, and wherein a portion of the flow of gas passes through the arc to generate the flow of plasma.
A method of manufacturing a plasma-arc gun, the method comprising:
- forming an inner chamber within an anode having a longitudinal axis, the inner chamber including a first open end, a second open end, and at least one region disposed therebetween and defined by the revolution of a non-linear curve about the longitudinal axis;
- positioning the anode and the gas injector within the gun body;
- and
- positioning the cathode at least partially within the inner chamber of the anode.
Dependencies are inferred from the claim text.