Patents by Inventor Paul Charles Knight

Paul Charles Knight 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).

  • Patent number: 9566795
    Abstract: A pinch valve includes first and second pinch arms pivotally mounted about respective pivot axes. A spring interconnects the first and second pinch arms to mutually bias the pinch arms towards each other and provide a pinching force for pinching respective first and second conduits. A cam engages with each of the pinch arms and provides an unpinching force for either one of the pinch arms against the bias of the sprint.
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: February 14, 2017
    Assignee: MEMJET TECHNOLOGY LIMITED
    Inventors: Geoffrey Philip Dyer, Rommel Balala, Paul Charles Knight, Kianoush Mir Sanaei, Saminda Jayatileke
  • Publication number: 20160009102
    Abstract: A pinch valve includes first and second pinch arms pivotally mounted about respective pivot axes. A spring interconnects the first and second pinch arms to mutually bias the pinch arms towards each other and provide a pinching force for pinching respective first and second conduits. A cam engages with each of the pinch arms and provides an unpinching force for either one of the pinch arms against the bias of the sprint.
    Type: Application
    Filed: September 25, 2015
    Publication date: January 14, 2016
    Inventors: Geoffrey Philip Dyer, Rommel Balala, Paul Charles Knight, Kianoush Mir Sanaei, Saminda Jayatileke
  • Patent number: 9180676
    Abstract: An improved pinch valve includes a camshaft and associated cam(s) controlling the position of a pivotally-mounted first pinch arm and an opposed, pivotally-mounted second pinch arm. The respective pinch arms are provided symmetrically about a central plane which contains an axis of the camshaft. A spring extends across the central plane and interconnects the respective pinch arms so as to urge both pinch arms towards the central plane. A mechanical advantage lever is provided such that the pinching force is greater than the spring force.
    Type: Grant
    Filed: December 5, 2013
    Date of Patent: November 10, 2015
    Assignee: Memjet Technology Ltd.
    Inventors: Geoffrey Philip Dyer, Rommel Balala, Paul Charles Knight, Kianoush Mir Sanaei, Saminda Jayatileke
  • Publication number: 20140198159
    Abstract: An improved pinch valve includes a camshaft and associated cam(s) controlling the position of a pivotally-mounted first pinch arm and an opposed, pivotally-mounted second pinch arm. The respective pinch arms are provided symmetrically about a central plane which contains an axis of the camshaft. A spring extends across the central plane and interconnects the respective pinch arms so as to urge both pinch arms towards the central plane. A mechanical advantage lever is provided such that the pinching force is greater than the spring force.
    Type: Application
    Filed: December 5, 2013
    Publication date: July 17, 2014
    Applicant: ZAMTEC LIMITED
    Inventors: Geoffrey Philip Dyer, Rommel Balala, Paul Charles Knight, Kianoush Mir Sanaei, Saminda Jayatileke
  • Patent number: 8360555
    Abstract: A cradle unit for a printhead cartridge is provided having a support bay for removably receiving the printhead cartridge, and an interface mounted on a slanted face within the support bay, the interface comprising connections which are movably tilted on said slanted face so as to be exposed within the support bay for connection with connections of the printhead cartridge when received in the support bay. The connections of the interface connect the printhead cartridge with a power supply which is remote from the interface.
    Type: Grant
    Filed: May 12, 2010
    Date of Patent: January 29, 2013
    Assignee: Zamtec Ltd
    Inventors: Paul Charles Knight, Kia Silverbrook, Bruce Mervyn Horsburgh, Saminda Jayatileke, Brian Robert Brown
  • Patent number: 8100509
    Abstract: Provided is printer assembly for a pagewidth printer, said assembly having a support frame for supporting a printhead arrangement. The support frame includes an outer wall portion and an inner wall portion separated by an internal cavity, as well as a lower arm portion and an upper wall fast with the outer and inner wall portions. The upper wall portion defines a channel for operatively receiving the printhead arrangement, said upper wall portion and arm portion having a clipping arrangement configured to complementarily receive a printed circuit board (PCB) support having electronic for controlling the printhead arrangement. The support frame is configured to minimize substantial dimensional changes due to environmental changes to retain a positional relationship between individual printhead tiles of the printhead arrangement.
    Type: Grant
    Filed: June 13, 2008
    Date of Patent: January 24, 2012
    Assignee: Silverbrook Research Pty Ltd
    Inventors: Kia Silverbrook, Norman Micheal Berry, Paul Charles Knight, Garry Raymond Jackson, Akira Nakazawa
  • Patent number: 8091973
    Abstract: A printing system comprising: a printhead cartridge comprising a printhead; a cradle unit for supporting the printhead cartridge; and an interface at which the cradle unit is removably engageable with the printhead cartridge, the interface comprising connections for connecting the printhead cartridge with a power supply which is remote from the interface and a power regulation circuit for regulating supply of power from the power supply to the printhead cartridge.
    Type: Grant
    Filed: November 4, 2008
    Date of Patent: January 10, 2012
    Assignee: Silverbrook Research Pty Ltd
    Inventors: Paul Charles Knight, Kia Silverbrook, Bruce Mervyn Horsburgh, Saminda Jayatileke, Brian Robert Brown
  • Patent number: 8025364
    Abstract: A system for interconnecting a printhead cartridge and a cradle unit for supporting the printhead cartridge is provided. The system has a first printed circuit having print control circuitry of the cradle unit, and a second printed circuit board having connections for connecting the printhead cartridge with a power supply which is remote from the second printhead circuit board and the print control circuitry of the first printed circuit board. The first and second printed circuit boards have complementary connectors which cooperate to provide the connection of the printhead cartridge to the print control circuitry. The complementary connectors being arranged so that the first printed circuit board is able to pivot with respect to the second printed circuit board.
    Type: Grant
    Filed: November 23, 2008
    Date of Patent: September 27, 2011
    Assignee: Silverbrook Research Pty Ltd
    Inventors: Paul Charles Knight, Kia Silverbrook, Bruce Mervyn Horsburgh, Saminda Jayatileke, Brian Robert Brown
  • Patent number: 7942496
    Abstract: A cradle unit for a printer assembly includes a body having a printhead cartridge support bay for receiving a printhead cartridge that incorporates a printhead, an ink supply for the printhead and a capper for capping the printhead when not in use. A levered frame is positioned within the body and is movable between an open position for allowing access to the printhead cartridge support bay and a closed position to close the printhead support bay. A support frame is positioned within the body. A capper drive mechanism is mounted on the support frame to actuate the capper of the printhead cartridge. A media transport mechanism is mounted on the support frame to feed print media through the body operatively with respect to the printhead.
    Type: Grant
    Filed: November 18, 2008
    Date of Patent: May 17, 2011
    Assignee: Silverbrook Research Pty Ltd
    Inventors: Paul Charles Knight, Kia Silverbrook, Bruce Mervyn Horsburgh, Saminda Jayatileke, Brian Robert Brown
  • Patent number: 7824011
    Abstract: A cradle unit is provided for a printhead cartridge. The cradle unit has a first printed circuit having print control circuitry of the cradle unit, and a second printed circuit board having connections for connecting the printhead cartridge with a power supply which is remote from the second printhead circuit board and the print control circuitry of the first printed circuit board. The first and second printed circuit boards have complementary connectors which cooperate to provide the connection of the printhead cartridge to the print control circuitry. The complementary connectors being arranged so that the first printed circuit board is able to pivot with respect to the second printed circuit board.
    Type: Grant
    Filed: November 23, 2008
    Date of Patent: November 2, 2010
    Assignee: Silverbrook Research Pty Ltd
    Inventors: Paul Charles Knight, Kia Silverbrook, Bruce Mervyn Horsburgh, Saminda Jayatileke, Brian Robert Brown
  • Patent number: 7798605
    Abstract: A printer assembly for a pagewidth printer includes a support frame having a fluid channel member and a clipping arrangement configured so that a printed circuit board can be clipped to the support frame. A printhead arrangement has printhead tiles arranged in the fluid channel member. The support frame is configured so that a positional relationship between individual tile members is substantially retained during environmental changes.
    Type: Grant
    Filed: September 7, 2008
    Date of Patent: September 21, 2010
    Assignee: Silverbrook Research Pty Ltd
    Inventors: Kia Silverbrook, Norman Micheal Berry, Paul Charles Knight
  • Publication number: 20100220151
    Abstract: A cradle unit for a printhead cartridge is provided having a support bay for removably receiving the printhead cartridge, and an interface mounted on a slanted face within the support bay, the interface comprising connections which are movably tilted on said slanted face so as to be exposed within the support bay for connection with connections of the printhead cartridge when received in the support bay. The connections of the interface connect the printhead cartridge with a power supply which is remote from the interface.
    Type: Application
    Filed: May 12, 2010
    Publication date: September 2, 2010
    Inventors: Paul Charles Knight, Kia Silverbrook, Bruce Mervyn Horsburgh, Saminda Jayatileke, Brian Robert Brown
  • Patent number: 7722185
    Abstract: A cradle unit for a printhead cartridge, the cradle unit comprising: an interface at which the cradle unit is removably engageable with a printhead cartridge, the interface comprising connections for connecting the printhead cartridge with a power supply which is remote from the interface; and a power storage circuit incorporated in the interface for storing at least some of the power being supplied to the printhead cartridge from the power supply.
    Type: Grant
    Filed: December 5, 2005
    Date of Patent: May 25, 2010
    Assignee: Silverbrook Research Pty Ltd
    Inventors: Paul Charles Knight, Kia Silverbrook, Bruce Mervyn Horsburgh, Saminda Jayatileke, Brian Robert Brown
  • Publication number: 20090122120
    Abstract: A cradle unit for a printer assembly includes a body having a printhead cartridge support bay for receiving a printhead cartridge that incorporates a printhead, an ink supply for the printhead and a capper for capping the printhead when not in use. A levered frame is positioned within the body and is movable between an open position for allowing access to the printhead cartridge support bay and a closed position to close the printhead support bay. A support frame is positioned within the body. A capper drive mechanism is mounted on the support frame to actuate the capper of the printhead cartridge. A media transport mechanism is mounted on the support frame to feed print media through the body operatively with respect to the printhead.
    Type: Application
    Filed: November 18, 2008
    Publication date: May 14, 2009
    Inventors: Paul Charles Knight, Kia Silverbrook, Bruce Mervyn Horsburgh, Saminda Jayatileke, Brian Robert Brown
  • Publication number: 20090102888
    Abstract: A printing system comprising: a printhead cartridge comprising a printhead; a cradle unit for supporting the printhead cartridge; and an interface at which the cradle unit is removably engageable with the printhead cartridge, the interface comprising connections for connecting the printhead cartridge with a power supply which is remote from the interface and a power regulation circuit for regulating supply of power from the power supply to the printhead cartridge.
    Type: Application
    Filed: November 4, 2008
    Publication date: April 23, 2009
    Inventors: Paul Charles Knight, Kia Sliverbrook, Bruce Mervyn Horsburgh, Saminda Jayatileke, Brian Robert Brown
  • Publication number: 20090102889
    Abstract: A system for interconnecting a printhead cartridge and a cradle unit for supporting the printhead cartridge is provided. The system has a first printed circuit having print control circuitry of the cradle unit, and a second printed circuit board having connections for connecting the printhead cartridge with a power supply which is remote from the second printhead circuit board and the print control circuitry of the first printed circuit board. The first and second printed circuit boards have complementary connectors which cooperate to provide the connection of the printhead cartridge to the print control circuitry. The complementary connectors being arranged so that the first printed circuit board is able to pivot with respect to the second printed circuit board.
    Type: Application
    Filed: November 23, 2008
    Publication date: April 23, 2009
    Inventors: Paul Charles Knight, Kia Silverbrook, Bruce Mervyn Horsburgh, Saminda Jayatileke, Brain Robert Brown
  • Publication number: 20090085978
    Abstract: A cradle unit is provided for a printhead cartridge. The cradle unit has a first printed circuit having print control circuitry of the cradle unit, and a second printed circuit board having connections for connecting the printhead cartridge with a power supply which is remote from the second printhead circuit board and the print control circuitry of the first printed circuit board. The first and second printed circuit boards have complementary connectors which cooperate to provide the connection of the printhead cartridge to the print control circuitry. The complementary connectors being arranged so that the first printed circuit board is able to pivot with respect to the second printed circuit board.
    Type: Application
    Filed: November 23, 2008
    Publication date: April 2, 2009
    Inventors: Paul Charles Knight, Kia Silverbrook, Bruce Mervyn Horsburgh, Saminda Jayatileke, Brian Robert Brown
  • Publication number: 20090002443
    Abstract: A printer assembly for a pagewidth printer includes a support frame having a fluid channel member and a clipping arrangement configured so that a printed circuit board can be clipped to the support frame. A printhead arrangement has printhead tiles arranged in the fluid channel member. The support frame is configured so that a positional relationship between individual tile members is substantially retained during environmental changes.
    Type: Application
    Filed: September 7, 2008
    Publication date: January 1, 2009
    Inventors: Kia Silverbrook, Norman Micheal Berry, Paul Charles Knight
  • Patent number: 7467853
    Abstract: A cradle unit for a printhead cartridge, the cradle unit comprising: an interface at which a printhead cartridge is removably engageable with the cradle unit, the interface comprising connections for connecting the printhead cartridge with a power supply which is remote from the interface; and a power regulation circuit incorporated in the interface for regulating supply of power from the power supply to the printhead cartridge.
    Type: Grant
    Filed: December 5, 2005
    Date of Patent: December 23, 2008
    Assignee: Silverbrook Research Pty Ltd
    Inventors: Paul Charles Knight, Kia Silverbrook, Bruce Mervyn Horsburgh, Saminda Jayatileke, Brian Robert Brown
  • Patent number: 7465020
    Abstract: A system for interconnecting a printhead cartridge and a cradle unit for supporting the printhead cartridge, the system comprising: an interface at which the printhead cartridge is removably engageable with the cradle unit, the interface comprising connections for connecting the printhead cartridge with a power supply of the cradle unit; and a power storage circuit incorporated in the interface for storing at least some of the power being supplied to the printhead cartridge from the power supply.
    Type: Grant
    Filed: December 5, 2005
    Date of Patent: December 16, 2008
    Assignee: Silverbrook Research Pty Ltd
    Inventors: Paul Charles Knight, Kia Silverbrook, Bruce Mervyn Horsburgh, Saminda Jayatileke, Brian Robert Brown