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US 9,802,408 B2Granted
Raised fluid pass-through structure in print heads
AssigneeXerox Corporation
InventorsJonathan R. Brick, Chad D. Freitag, Garry A. Jones, Jon G. Judge, David R. Koehler, Chad J. Slenes, Peter J. Nystrom, Gary D. Redding, Mark A. Cellura
Life of this patent
Estimating the term…
Abstract
A print head includes a substrate having a hole, a circuit on the substrate, the circuit having traces and a hole corresponding to the hole in the substrate, the hole forming a fluid path, and a raised structure on the substrate around the fluid path, the raised structure positioned to seal the circuit from the fluid path.
Claims8
A print head, comprising:
- a circuit substrate having a hole, the circuit substrate having a raised structure formed from the circuit substrate such that the raised structure surrounds the hole, the raised structure and the hole forming a portion of a fluid path, the raised structure having only one interface requiring a seal against fluid leakage;
- and
- a circuit on the circuit substrate, the circuit having traces and a hole corresponding to the hole in the circuit substrate;
- wherein, the raised structure is positioned to separate the circuit from the fluid path.
1 more element
A multi-layer structure having a fluid channel, comprising:
- a circuit substrate having a hole, the circuit substrate having a raised structure formed from the circuit substrate such that the raised structure surroundsing the hole, the raised structure and the hole forming a portion of a fluid path, the raised structure having only one interface requiring a seal against fluid leakage;
- and
- at least two layers on the circuit substrate having a hole corresponding to the hole in the circuit substrate such that the layers are sealed off from any fluid in the fluid path, wherein one of the layers is a circuit having electrically conductive traces.
Dependencies are inferred from the claim text.