Patents by Inventor Joshua Joel Cantrell

Joshua Joel Cantrell 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).

  • Verifying a maintenance process on a print head
    Patent number: 8356877
    Abstract: The present invention is embodied in a printing system (100) that includes a print head (120) having a controller (110), a temperature sensor (116) and a priming system (126) configured to apply a fluid pressure externally to the print head (120) to purge the print head with fluid, wherein purging the print head (120) with fluid has an effect of reducing the print head temperature. The controller (110) is configured to activate the priming system (126) for purging the printhead (120) with fluid, monitor a signal from the temperature sensor (406), and determine (418) whether activating the primer has resulted in sufficient fluid passing through the print head (120) based upon monitoring the signal from the temperature sensor (116).
    Type: Grant
    Filed: August 11, 2008
    Date of Patent: January 22, 2013
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Hector Jose Lebron, Anders T. Peterson, Joshua Joel Cantrell
  • VERIFYING A MAINTENANCE PROCESS ON A PRINT HEAD
    Publication number: 20110122186
    Abstract: The present invention is embodied in a printing system (100) that includes a print head (120) having a controller (110), a temperature sensor (116) and a priming system (126) configured to apply a fluid pressure externally to the print head (120) to purge the print head with fluid, wherein purging the print head (120) with fluid has an effect of reducing the print head temperature. The controller (110) is configured to activate the priming system (126) for purging the printhead (120) with fluid, monitor a signal from the temperature sensor (406), and determine (418) whether activating the primer has resulted in sufficient fluid passing through the print head (120) based upon monitoring the signal from the temperature sensor (116).
    Type: Application
    Filed: August 11, 2008
    Publication date: May 26, 2011
    Inventors: Hector Jose Lebron, Anders T. Peterson, Joshua Joel Cantrell