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).
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Patent number: 9566795Abstract: 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: GrantFiled: September 25, 2015Date of Patent: February 14, 2017Assignee: MEMJET TECHNOLOGY LIMITEDInventors: Geoffrey Philip Dyer, Rommel Balala, Paul Charles Knight, Kianoush Mir Sanaei, Saminda Jayatileke
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Publication number: 20160009102Abstract: 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: ApplicationFiled: September 25, 2015Publication date: January 14, 2016Inventors: Geoffrey Philip Dyer, Rommel Balala, Paul Charles Knight, Kianoush Mir Sanaei, Saminda Jayatileke
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Patent number: 9180676Abstract: 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: GrantFiled: December 5, 2013Date of Patent: November 10, 2015Assignee: Memjet Technology Ltd.Inventors: Geoffrey Philip Dyer, Rommel Balala, Paul Charles Knight, Kianoush Mir Sanaei, Saminda Jayatileke
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Publication number: 20140198159Abstract: 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: ApplicationFiled: December 5, 2013Publication date: July 17, 2014Applicant: ZAMTEC LIMITEDInventors: Geoffrey Philip Dyer, Rommel Balala, Paul Charles Knight, Kianoush Mir Sanaei, Saminda Jayatileke
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Patent number: 8360555Abstract: 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: GrantFiled: May 12, 2010Date of Patent: January 29, 2013Assignee: Zamtec LtdInventors: Paul Charles Knight, Kia Silverbrook, Bruce Mervyn Horsburgh, Saminda Jayatileke, Brian Robert Brown
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Patent number: 8100509Abstract: 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: GrantFiled: June 13, 2008Date of Patent: January 24, 2012Assignee: Silverbrook Research Pty LtdInventors: Kia Silverbrook, Norman Micheal Berry, Paul Charles Knight, Garry Raymond Jackson, Akira Nakazawa
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Patent number: 8091973Abstract: 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: GrantFiled: November 4, 2008Date of Patent: January 10, 2012Assignee: Silverbrook Research Pty LtdInventors: Paul Charles Knight, Kia Silverbrook, Bruce Mervyn Horsburgh, Saminda Jayatileke, Brian Robert Brown
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Patent number: 8025364Abstract: 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: GrantFiled: November 23, 2008Date of Patent: September 27, 2011Assignee: Silverbrook Research Pty LtdInventors: Paul Charles Knight, Kia Silverbrook, Bruce Mervyn Horsburgh, Saminda Jayatileke, Brian Robert Brown
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Patent number: 7942496Abstract: 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: GrantFiled: November 18, 2008Date of Patent: May 17, 2011Assignee: Silverbrook Research Pty LtdInventors: Paul Charles Knight, Kia Silverbrook, Bruce Mervyn Horsburgh, Saminda Jayatileke, Brian Robert Brown
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Patent number: 7824011Abstract: 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: GrantFiled: November 23, 2008Date of Patent: November 2, 2010Assignee: Silverbrook Research Pty LtdInventors: Paul Charles Knight, Kia Silverbrook, Bruce Mervyn Horsburgh, Saminda Jayatileke, Brian Robert Brown
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Patent number: 7798605Abstract: 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: GrantFiled: September 7, 2008Date of Patent: September 21, 2010Assignee: Silverbrook Research Pty LtdInventors: Kia Silverbrook, Norman Micheal Berry, Paul Charles Knight
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Publication number: 20100220151Abstract: 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: ApplicationFiled: May 12, 2010Publication date: September 2, 2010Inventors: Paul Charles Knight, Kia Silverbrook, Bruce Mervyn Horsburgh, Saminda Jayatileke, Brian Robert Brown
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Patent number: 7722185Abstract: 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: GrantFiled: December 5, 2005Date of Patent: May 25, 2010Assignee: Silverbrook Research Pty LtdInventors: Paul Charles Knight, Kia Silverbrook, Bruce Mervyn Horsburgh, Saminda Jayatileke, Brian Robert Brown
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Publication number: 20090122120Abstract: 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: ApplicationFiled: November 18, 2008Publication date: May 14, 2009Inventors: Paul Charles Knight, Kia Silverbrook, Bruce Mervyn Horsburgh, Saminda Jayatileke, Brian Robert Brown
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Publication number: 20090102888Abstract: 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: ApplicationFiled: November 4, 2008Publication date: April 23, 2009Inventors: Paul Charles Knight, Kia Sliverbrook, Bruce Mervyn Horsburgh, Saminda Jayatileke, Brian Robert Brown
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Publication number: 20090102889Abstract: 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: ApplicationFiled: November 23, 2008Publication date: April 23, 2009Inventors: Paul Charles Knight, Kia Silverbrook, Bruce Mervyn Horsburgh, Saminda Jayatileke, Brain Robert Brown
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Publication number: 20090085978Abstract: 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: ApplicationFiled: November 23, 2008Publication date: April 2, 2009Inventors: Paul Charles Knight, Kia Silverbrook, Bruce Mervyn Horsburgh, Saminda Jayatileke, Brian Robert Brown
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Publication number: 20090002443Abstract: 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: ApplicationFiled: September 7, 2008Publication date: January 1, 2009Inventors: Kia Silverbrook, Norman Micheal Berry, Paul Charles Knight
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Patent number: 7467853Abstract: 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: GrantFiled: December 5, 2005Date of Patent: December 23, 2008Assignee: Silverbrook Research Pty LtdInventors: Paul Charles Knight, Kia Silverbrook, Bruce Mervyn Horsburgh, Saminda Jayatileke, Brian Robert Brown
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Patent number: 7465020Abstract: 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: GrantFiled: December 5, 2005Date of Patent: December 16, 2008Assignee: Silverbrook Research Pty LtdInventors: Paul Charles Knight, Kia Silverbrook, Bruce Mervyn Horsburgh, Saminda Jayatileke, Brian Robert Brown