Patent ID: 11872757
Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Field: Other special machines (Mechanical engineering)
Classification: CPC B  Y | IPC B

Claim 0:
1. An apparatus comprising:
an agent delivery device that is controllable to deliver a coalescing agent to selected locations of a build material layer;
a plurality of microwave energy emitters, each of the microwave energy emitters including:
a tip that generates a focused microwave energy field onto a respective area beneath and outside of the tip when microwave energy is emitted through a center of the tip, wherein the tip is to be positioned adjacent to a portion of the build material layer that is within the focused microwave energy field;
a resonator, wherein the tip is attached to the resonator;
a coaxial feed that is separated from the resonator by a gap and wherein the resonator is capacitively coupled to the coaxial feed; and

a controller to control the microwave energy emitters to direct microwave energy onto the build material layer.