IP Library Granted Patent US 12,303,979
Granted Patent B2
US 12,303,979 · App. 17/462,713 · Granted May 20, 2025

Ejector for modification of metal jetting compositions and methods thereof

Inventors: Mariusz Tadeusz Mika (Raleigh, NC); Peter M. Gulvin (Webster, NY)
Assignee: ADDITIVE TECHNOLOGIES, LLC
B22F12/53B22F10/22B22F12/13B22F12/70B33Y30/00B33Y40/10B22F2201/10B22F2202/15
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Quick Facts
Patent No.
US 12,303,979
App. No.
17/462,713
Granted
May 20, 2025
Kind
B2
Abstract

An ejector for jetting modified metal is disclosed. The ejector for jetting modified metal also includes a nozzle orifice in connection with the inner cavity and configured to eject one or more droplets of liquid metal. The ejector for jetting modified metal includes a first gas source associated with the inner cavity and an external portion of the nozzle. The ejector for jetting modified metal also includes a second gas source coupled to the first gas source and in proximity to an external portion of the nozzle orifice.

Claims (47)

1. An ejector for jetting modified metal, comprising:

a structure defining an inner cavity and a nozzle;

a nozzle orifice in connection with the inner cavity and configured to eject one or more droplets of liquid metal;

a first gas source associated with the inner cavity and an external portion of the nozzle;

a second gas source coupled to the first gas source and in proximity to an external portion of the nozzle orifice;

an additive source coupled to the second gas source; and

an additive inlet external to and coupled to the nozzle and coupled to the additive source;

and wherein:

the additive comprises a powder.

2. The ejector for jetting modified metal of claim 1 , further comprising a source of a printing material configured to introduce the printing material into the inner cavity of the ejector.

3. The ejector for jetting modified metal of claim 1 , wherein the additive source further comprises a furnace.

4. The ejector for jetting modified metal of claim 1 , wherein the additive source further comprises a fluidized powder bed.

5. The ejector for jetting modified metal of claim 1 , wherein the additive source further comprises an aerosol generator.

6. The ejector for jetting modified metal of claim 1 , further comprising a heating element configured to heat a solid in the inner cavity of the ejector, thereby causing the solid to change to a liquid within the ejector.

7. The ejector for jetting modified metal of claim 1 , further comprising:

a coil wrapped at least partially around the ejector; and

a power source configured to supply one or more pulses of power to the coil, which cause the one or more droplets of liquid metal to be jetted out of the nozzle orifice.

8. The ejector for jetting modified metal of claim 1 , further comprising a substrate configured to support the one or more droplets of liquid metal as the one or more droplets of liquid metal solidify to form a 3D object.

9. The ejector for jetting modified metal of claim 1 , further comprising a wire feed of a solid printing material, configured to introduce the solid printing material into the inner cavity of the ejector.

10. The ejector for jetting modified metal of claim 1 , further comprising a powder feed of a solid printing material, configured to introduce the solid printing material into the inner cavity of the ejector.

11. An ejector for jetting modified metal, comprising:

a structure defining an inner cavity;

a nozzle orifice in connection with the inner cavity and configured to eject one or more droplets of liquid metal;

a first gas source associated with the inner cavity and an external portion of the nozzle orifice;

a second gas source coupled to the first gas source and in proximity to an external portion of the nozzle orifice;

an additive source coupled to the second gas source, wherein the additive comprises a powder;

an additive inlet external to and coupled to the nozzle orifice; and

a substrate configured to support the one or more droplets of liquid metal as the one or more droplets of liquid metal solidify to form a 3D object.

12. The ejector for jetting modified metal of claim 11 , further comprising a source of a printing material configured to introduce the printing material into the inner cavity of the ejector.

13. The ejector for jetting modified metal of claim 11 , wherein the additive source further comprises a furnace.

14. The ejector for jetting modified metal of claim 11 , wherein the additive source further comprises a fluidized powder bed.

15. The ejector for jetting modified metal of claim 11 , further comprising:

a heating element configured to heat a solid in the inner cavity of the ejector, thereby causing the solid to change to a liquid within the ejector;

a coil wrapped at least partially around the ejector; and

a power source configured to supply one or more pulses of power to the coil, which cause the one or more droplets of liquid metal to be jetted out of the nozzle orifice.

16. An ejector for jetting modified metal, comprising:

a structure defining an inner cavity;

a nozzle comprising a nozzle orifice in connection with the inner cavity and configured to eject one or more droplets of liquid metal;

a first gas source associated with the inner cavity and an external portion of the nozzle orifice; and

a second gas source coupled to the first gas source and in proximity to an external portion of the nozzle orifice;

an additive source comprising an aerosol generator coupled to the second gas source, wherein the additive comprises a powder;

an additive inlet external to and coupled to the nozzle; and

a substrate configured to support the one or more droplets of liquid metal as the one or more droplets of liquid metal solidify to form a 3D object.

17. The ejector for jetting modified metal of claim 16 , further comprising:

a coil wrapped at least partially around the ejector; and

a power source configured to supply one or more pulses of power to the coil, which cause the one or more droplets of liquid metal to be jetted out of the nozzle orifice.

18. The ejector for jetting modified metal of claim 16 , further comprising a wire feed of a solid printing material, configured to introduce the solid printing material into the inner cavity of the ejector.

Assignments (5)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 1, 2023
From: XEROX CORPORATION
To: ELEM ADDITIVE LLC
Reel/Frame 065427/0862 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 1, 2023
From: ELEM ADDITIVE LLC
To: ADDITIVE TECHNOLOGIES, LLC DBA ADDITEC
Reel/Frame 065428/0001 →
RELEASE OF SECURITY INTEREST IN PATENTS AT R/F 062740/0214 Recorded May 18, 2023
From: CITIBANK, N.A., AS AGENT
To: XEROX CORPORATION
Reel/Frame 063694/0122 →
SECURITY INTEREST Recorded Nov 10, 2022
From: XEROX CORPORATION
To: CITIBANK, N.A., AS AGENT
Reel/Frame 062740/0214 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 31, 2021
From: MIKA, MARIUSZ TADEUSZ; GULVIN, PETER M.
To: XEROX CORPORATION
Reel/Frame 057343/0254 →