Patents by Inventor Keith William Jariabka

Keith William Jariabka has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • PRINT FLUID DELIVERY WITH MULTIPLE TANKS
    Publication number: 20210309017
    Abstract: An example of an apparatus is provided. The apparatus includes a main tank disposed above a nozzle. The main tank is to store a bulk amount of print fluid. The apparatus includes a feeder tank in fluidic communication with the main tank and the nozzle. The feeder tank is disposed below the nozzle to maintain a backpressure. The apparatus includes a vent port disposed on the feeder tank. The apparatus includes an exchange port connecting the main tank to the feeder tank. The exchange port allows print fluid to flow from the main tank to the feeder tank in response to a decrease in an amount of print fluid in the feeder tank relative to a threshold amount.
    Type: Application
    Filed: November 20, 2018
    Publication date: October 7, 2021
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: William Scott Osborne, David D. Welter, John James Cantrell, Keith William Jariabka