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US 10,946,672 B2Granted
Printed heating element
AssigneeGoodrich Corporation
InventorsJin Hu, David B. Sweet
Life of this patent
Estimating the term…
Abstract
A heating element is provided with a conductive path pattern which can be printed in a mask-free manner (e.g., drop-on-demand) with existing printing technology. The printing step can be performed, for example, with a thermal inkjet printer, a piezoelectric inkjet printer, an aerosol jet printer, or an ultrasound printer. The ink solution can be formulated so that it establishes an electrically conductive path which is free of polymer binders.
Claims8
A method of making a heating element adapted to provide a power density of at least 400 watts per square meter, the method comprising:
- printing directly on a substrate a trail with an ink solution for each track in the heating element, wherein each track establishes an electrically conductive path free of polymer binders inside the electrically conductive path;
- wherein the ink solution includes:
- a particle-free metal compound and a solvent in which the particle-free metal compound is dissolved.
Dependencies are inferred from the claim text.