Patents by Inventor Stuart Wheatley

Stuart Wheatley 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).

  • Ink delivery system for gross and fine pressure control
    Patent number: 11433683
    Abstract: An ink delivery system for an inkjet printer includes: (a) an ink delivery module for supplying and receiving ink in a circulating fluidic loop having positive and negative pressure ink lines; (b) print modules interconnected between the positive pressure ink line and the negative pressure ink line. The ink delivery module has regulator pumps for gross control of ink pressure in the print modules; and each print module has a respective pressure control system for dynamic fine control of ink pressure in each individual print module.
    Type: Grant
    Filed: July 14, 2020
    Date of Patent: September 6, 2022
    Inventors: Craig Meyer, Jason Mark Thelander, Mark Profaca, Stuart Wheatley
  • INK DELIVERY SYSTEM FOR GROSS AND FINE PRESSURE CONTROL
    Publication number: 20200338901
    Abstract: An ink delivery system for an inkjet printer includes: (a) an ink delivery module for supplying and receiving ink in a circulating fluidic loop having positive and negative pressure ink lines; (b) print modules interconnected between the positive pressure ink line and the negative pressure ink line. The ink delivery module has regulator pumps for gross control of ink pressure in the print modules; and each print module has a respective pressure control system for dynamic fine control of ink pressure in each individual print module.
    Type: Application
    Filed: July 14, 2020
    Publication date: October 29, 2020
    Inventors: Craig MEYER, Jason Mark THELANDER, Mark PROFACA, Stuart WHEATLEY
  • Print module for supplying ink to printhead at constant pressure
    Patent number: 10744785
    Abstract: A print module configured for interconnection between a positive ink line and a negative ink line via respective inlet and outlet lines. The print module includes: an inlet port; an outlet port; a printhead interconnected between the inlet port and the outlet port; a control valve positioned at the inlet port for controlling an ink pressure in the printhead; an ink pressure sensor for sensing an ink pressure in the print module; and a controller for receiving feedback from the pressure sensor and controlling the control valve. During printing, the ink pressure sensor, the controller and the control valve cooperate to control a backpressure in the printhead within a predetermined backpressure range.
    Type: Grant
    Filed: December 10, 2018
    Date of Patent: August 18, 2020
    Assignee: Memjet Technology Limited
    Inventors: Craig Meyer, Jason Thelander, Mark Profaca, Stuart Wheatley
  • PRINT MODULE FOR SUPPLYING INK TO PRINTHEAD AT CONSTANT PRESSURE
    Publication number: 20190105917
    Abstract: A print module configured for interconnection between a positive ink line and a negative ink line via respective inlet and outlet lines. The print module includes: an inlet port; an outlet port; a printhead interconnected between the inlet port and the outlet port; a control valve positioned at the inlet port for controlling an ink pressure in the printhead; an ink pressure sensor for sensing an ink pressure in the print module; and a controller for receiving feedback from the pressure sensor and controlling the control valve. During printing, the ink pressure sensor, the controller and the control valve cooperate to control a backpressure in the printhead within a predetermined backpressure range.
    Type: Application
    Filed: December 10, 2018
    Publication date: April 11, 2019
    Inventors: Craig Meyer, Jason Thelander, Mark Profaca, Stuart Wheatley
  • Ink delivery system for supplying ink to multiple printheads at constant pressure
    Patent number: 10252540
    Abstract: An ink delivery system for an inkjet printer includes: a positive ink line; a negative ink line; and one or more print modules interconnected between the positive ink line and the negative ink line. Each print module includes: an inlet port; an outlet port; a printhead interconnected between the inlet port and the outlet port; a control valve positioned at the inlet port for controlling an ink pressure in the printhead; an ink pressure sensor for sensing an ink pressure in the print module; and a controller for receiving feedback from the pressure sensor and controlling the control valve. During printing, the ink pressure sensor, the controller and the control valve cooperate to control a backpressure in the printhead within a predetermined backpressure range.
    Type: Grant
    Filed: May 1, 2017
    Date of Patent: April 9, 2019
    Assignee: MEMJET TECHNOLOGY LIMITED
    Inventors: Craig Meyer, Jason Thelander, Mark Profaca, Stuart Wheatley
  • INK DELIVERY SYSTEM FOR SUPPLYING INK TO MULTIPLE PRINTHEADS AT CONSTANT PRESSURE
    Publication number: 20170313096
    Abstract: An ink delivery system for an inkjet printer includes: a positive ink line; a negative ink line; and one or more print modules interconnected between the positive ink line and the negative ink line. Each print module includes: an inlet port; an outlet port; a printhead interconnected between the inlet port and the outlet port; a control valve positioned at the inlet port for controlling an ink pressure in the printhead; an ink pressure sensor for sensing an ink pressure in the print module; and a controller for receiving feedback from the pressure sensor and controlling the control valve. During printing, the ink pressure sensor, the controller and the control valve cooperate to control a backpressure in the printhead within a predetermined backpressure range.
    Type: Application
    Filed: May 1, 2017
    Publication date: November 2, 2017
    Inventors: Craig Meyer, Jason Thelander, Mark Profaca, Stuart Wheatley