Patents by Inventor Jeremy Low

Jeremy Low 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).

  • Publication number: 20090219358
    Abstract: A printer comprising: an inkjet printhead having an ink inlet, an ink outlet and a plurality of nozzles; a priming system for priming the printhead, the priming system comprising: an ink chamber having an outlet port connected to the ink inlet via an upstream ink line; an air pump having a pump outlet communicating with a headspace above the ink in the chamber; a sensor positioned for sensing ink in a downstream ink line connected to the ink outlet, the sensor cooperating with the pump such that the pump is shut off when the sensor senses any ink; and means for minimizing phantom sensing of ink caused by ink bubbles in the downstream ink line, wherein, in a priming configuration, the pump is configured to positively pressurize the headspace until the sensor senses ink.
    Type: Application
    Filed: April 4, 2008
    Publication date: September 3, 2009
    Inventors: Kia Silverbrook, David Jeremy Low
  • Publication number: 20090219364
    Abstract: A printer comprising: an inkjet printhead having a plurality of ink inlets, a plurality of ink outlets and an array of nozzles; a plurality of ink chambers, each ink chamber having an outlet port connected to a corresponding ink inlet via a respective upstream ink conduit; a single air pump having a pump outlet communicating with a headspace in each ink chamber, the pump being configured to positively pressurize each headspace during a printhead priming operation; and a plurality of downstream ink conduits, each downstream ink conduit being connected to a corresponding ink outlet, and each downstream ink conduit communicating with a pump inlet of the pump.
    Type: Application
    Filed: April 4, 2008
    Publication date: September 3, 2009
    Inventors: Kia Silverbrook, David Jeremy Low
  • Publication number: 20090219356
    Abstract: An ink supply system for supplying ink to an inkjet printhead at a predetermined hydrostatic pressure, the ink supply system comprising: a pressure-regulating chamber having an outlet port connected to an ink inlet of the printhead, the chamber comprising a float valve configured for maintaining a predetermined level of ink in the chamber, the level of ink controlling the hydrostatic pressure; and an ink reservoir connected to an inlet port of the pressure-regulating chamber, the ink reservoir being positioned above the predetermined level of ink.
    Type: Application
    Filed: April 4, 2008
    Publication date: September 3, 2009
    Inventors: Kia Silverbrook, David Jeremy Low
  • Publication number: 20090219362
    Abstract: A method of priming one or more printhead integrated circuits, the method comprising the steps of: (i) providing a printhead assembly comprising: an ink distribution manifold having an ink inlet and an ink outlet; one or more printhead integrated circuits mounted on the manifold, each printhead integrated circuit comprising a plurality of nozzles; an upstream ink line connected to the ink inlet; and a downstream ink line connected to the ink outlet, wherein at least part of the printhead assembly contains ink bubbles; (ii) providing an ink chamber in fluid communication with the ink inlet via the upstream ink line; (iii) priming the printhead integrated circuits by drawing ink from the ink chamber, through the manifold and into the downstream ink line using a pump; (iv) bursting ink bubbles in the downstream ink line; (v) sensing for ink downstream of a bubble-bursting point in the downstream ink line; and (v) shutting off the pump when the ink is sensed.
    Type: Application
    Filed: April 4, 2008
    Publication date: September 3, 2009
    Inventors: Kia Silverbrook, David Jeremy Low
  • Publication number: 20090219361
    Abstract: A printer comprising: an inkjet printhead having an ink inlet, an ink outlet and a plurality of nozzles; an ink chamber having an outlet port; an upstream ink line providing fluid communication between the outlet port and the ink inlet; a reversible air pump having a pump outlet communicating with a headspace in the ink chamber, the pump being configured to positively pressurize the headspace during a printhead priming operation or negatively pressurize the headspace during a printhead depriming operation; and a downstream ink line connected to the ink outlet, the downstream ink line being in fluid communication with a pump inlet so as to effect cooperative pulling and pushing of ink through the printhead during the priming and depriming operations.
    Type: Application
    Filed: April 4, 2008
    Publication date: September 3, 2009
    Inventors: Kia Silverbrook, David Jeremy Low
  • Publication number: 20090219365
    Abstract: A printer comprising: an inkjet printhead having an ink inlet, an ink outlet and an array of nozzles; an ink chamber having an outlet port connected to the ink inlet via an upstream ink conduit; an air pump having a pump outlet communicating with a headspace in the ink chamber, the pump being configured to positively pressurize the headspace during a printhead priming operation; and a downstream ink conduit connected to the ink outlet, the downstream ink conduit communicating with a pump inlet of the pump, wherein the downstream ink conduit includes an expansion chamber for accommodating a volume of ink, thereby inhibiting the ink from reaching the pump inlet.
    Type: Application
    Filed: April 4, 2008
    Publication date: September 3, 2009
    Inventors: Kia Silverbrook, David Jeremy Low
  • Publication number: 20070054256
    Abstract: A mock circulatory apparatus for use in simulating the circulatory system of a patient comprising of a fluid circuit, wherein said fluid circuit includes a mock ventricle; at least one fluid reservoir and tubing. The valveless blood pump is connected in parallel fluid communication to said fluid circuit across the mock ventricle.
    Type: Application
    Filed: August 30, 2006
    Publication date: March 8, 2007
    Inventors: Jeremy Low, Mark Von Huben