Hewlett-packard Development Company, L.P.

Veronica A Nelson

David Michael Kwasny

Marjan S Amesbury

Don King

Terry M Lambright

Melanie J Feder

A process for applying a protective coating to a flex circuit comprises providing a flex circuit having conductive traces on one surface and applying a protective coating in substantially a liquid state to the one surface from a first roller including the protective coating in a pattern thereon. The pattern includes at least one area on the one surface of the first roller that is not covered by the protective coating.

Method, system, and apparatus for protective coating a flexible circuit

A flexible sheet which includes a substrate having at least one visually discernable surface and at least one electroluminescent lamp assembly positioned proximate to the surface and controlled by a suitable power source as well as means for isolating at least one electroluminescent lamp assembly from deleterious interaction with environment external to the flexible sheet. The flexible sheet can be employed in various applications including bound books, functional cards, locational orientation devices as well as in mechanisms for selectively indicating ingress or egress from architectural structures and other safety indicators. At least one component of the flexible sheet with the electroluminescent lamp assembly can be produced by drop ejection.

Flexible sheet having at least one region of electroluminescence

An exemplary printing device and related systems are described. One exemplary printing device includes one or more print cartridges configured to selectively eject generally fluidic material onto a media. At least one print cartridge of the one or more print cartridges is configured to eject a first generally fluidic material comprising a slurried suspension.

Slurried suspension ejector and related systems and methods of forming same

Hot-melt Seal For Nozzles on Print Cartridges And Method. A layer of hot-melt is adhesively bonded to a print cartridge to seal the nozzles through which ink is jetted. In another aspect, a layer of hot-melt seals the electrical contacts and leads mounted on the print cartridge. The hot-melt adhesive can be either laminated with a moisture retardant (preferably impermeable) base film or block coated on moisture retardant (preferably impermeable) pouch material. These materials are thereafter adhesively bonded to the print cartridge, sealing the nozzles and preferably the electrical contacts and leads as well. In one application process, a hot-melt moisture retardant laminate tape is cut to size, releasably captured, positioned over the nozzles, and heat staked to seal the nozzles of the print cartridge. In a second application process, a layer of hot-melt is directly applied over the nozzles and a layer of moisture retardant material is heat staked to the hot-melt. In a third application process, heat stakable pouch material is block coated with hot-melt, the block coated hot-melt is positioned over the nozzles and heat staked, and the print cartridge is thereafter flow wrapped. In a fourth application process a hot-melt, moisture retardant tape is cut to size and heat staked to seal the nozzles of a print cartridge. Thereafter a free-end of the tape is heat staked into a pouch material and then the print cartridge is flow wrapped with the pouch material.

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Albany, OR, United States of America

Veronica A Nelson