Patents by Inventor Craig Donald Strudwicke

Craig Donald Strudwicke 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: 8393729
    Abstract: A continuous web printer that has an inlet for receiving a web of media from a media web roll unwinder, an outlet for delivery to a media web roll winder, an air platen frame for generating an air cushion at least partially defining a media feed path and a plurality of pagewidth inkjet printheads positioned adjacent the media feed path for printing on both sides of the web.
    Type: Grant
    Filed: August 20, 2010
    Date of Patent: March 12, 2013
    Assignee: Zamtec Ltd
    Inventors: Kia Silverbrook, Mark Profaca, Craig Donald Strudwicke, Jason Mark Thelander
  • Patent number: 8393730
    Abstract: A continuous web printer that has an inlet for receiving a web of media from a media web roll unwinder, an outlet for delivery to a media web roll winder, a plurality of pagewidth inkjet printhead assemblies for printing on both sides of the web; and a media feed path extending from the inlet to the outlet. The media feed path has a first print zone where one side of the web is printed and a second print zone where the other side of the web is printed. The first print zone and the second print zone are flat, and the first print zone is upstream from the second print zone with respect to a media feed direction.
    Type: Grant
    Filed: August 20, 2010
    Date of Patent: March 12, 2013
    Assignee: Zamtec Ltd
    Inventors: Kia Silverbrook, Mark Profaca, Craig Donald Strudwicke, Jason Mark Thelander
  • Patent number: 8296933
    Abstract: The present invention relates to a fastening apparatus for fastening a flexible printed circuit board (PCB) to a printhead assembly. The printhead assembly includes a printhead carrier and an ink ejection printhead carried by the carrier. The fastening apparatus includes a support assembly. An authentication system is arranged on the support assembly and is configured to authenticate the printhead assembly. At least one bonding assembly is configured to bond the PCB to the printhead assembly. A controller is configured to control the bonding assembly to bond the PCB to the printhead assembly subsequent to the authentication of the printhead assembly.
    Type: Grant
    Filed: August 19, 2008
    Date of Patent: October 30, 2012
    Assignee: Zamtec Limited
    Inventors: Stephen Richard O'Farrell, Jan Waszczuk, Stephen John Sleijpen, James Andrew, Craig Donald Strudwicke, William Granger, Mark Janos
  • Patent number: 8296937
    Abstract: The invention provides an assembler for constructing a pagewidth inkjet printhead by assembling inkjet ICs on a carrier having tortuous ink supply paths to each IC. The assembler supports and positions a diced wafer having the inkjet ICs, and picks and conveys a predetermined plurality of the ICs from the wafer to be sequentially placed across the carrier thereby constructing the pagewidth printhead. A die placement assembly of the assembler receives a clamp assembly's elongate body which has a pair or elongate retaining plates, an insert below the plates, and a diaphragm which receives the carrier and is pneumatically displaceable to urge the insert against the plates. A base/plate of the assembler's wafer positioning assembly has stages, one of which rotatably mounts a support plate which receives the wafer and has a motor which rotates the support plate underneath the assembler's die picker under control of the assembler's controller.
    Type: Grant
    Filed: August 19, 2008
    Date of Patent: October 30, 2012
    Assignee: Silverbrook Research Pty Ltd
    Inventors: David Oliver Burke, Jan Waszczuk, Desmond Bruce Boyton, Craig Donald Strudwicke, Peter John Morley Sobey, William Granger, Jason Mark Thelander, Eric Patrick O'Donnell
  • Publication number: 20120133704
    Abstract: A colour ink printing system includes a plurality of print head cartridges, each extending across and spaced apart along a direction of print media propagation; a print head chassis for supporting the plurality of print head cartridges, the print head chassis actuable between a printing position, a transition position, and a maintenance position; a maintenance chassis for supporting a plurality of maintenance cradles, the maintenance chassis actuable between a storage position and an operational position; and a plurality of supporting arms respectively extending upwards from each corner of the print head chassis. Each of the plurality of print head cartridges is held stationary with respect to a platen on which print media is propagated to effect printing on the print media. Each of the plurality of print head cartridges is a monochrome print head cartridge ejecting a fluid different to the remaining plurality of print head cartridges.
    Type: Application
    Filed: October 14, 2011
    Publication date: May 31, 2012
    Inventors: Mark Profaca, Julian Paul Kolodko, William John Stacey, Stephen John Sleijpen, Craig Donald Strudwicke, Neil Fyfe Edwards, Lance Thomas Brown, Toby Desmond Oste, Eric Patrick O'Donnell, Peter John Morley Sobey, David Bernardi, James Andrew
  • Publication number: 20120134730
    Abstract: A colour ink printing system includes a plurality of print head cartridges each including a modular printhead made up of a plurality of print head tiles; a print head chassis for supporting the plurality of print head cartridges; and a maintenance chassis for supporting a plurality of maintenance cradles, the maintenance chassis is actuable between a storage position and an operational position. Each of the plurality of print head cartridges is held stationary with respect to a platen on which print media is propagated. Each print head cartridge is a monochrome print head cartridge ejecting a fluid different to the remaining print head cartridges. One or more of the plurality of print head cartridges includes a plurality of ventilation slits defined in the vicinity of the print head tiles, having applied thereto a suction force for sucking ink aerosol particles away from the print head tiles.
    Type: Application
    Filed: October 14, 2011
    Publication date: May 31, 2012
    Inventors: Mark Profaca, Julian Paul Kolodko, William John Stacey, Stephen John Sleijpen, Craig Donald Strudwicke, Neil Fyfe Edwards, Lance Thomas Brown, Toby Desmond Oste, Eric Patrick O'Donnell, Peter John Morley Sobey, David Bernardi, James Andrew
  • Publication number: 20120092405
    Abstract: A printing method includes the steps of: receiving a colour image and separating the colour image into a plurality of distinct colour planes; dithering a first distinct colour plane to obtain dot data for the first distinct colour plane; dithering a second distinct colour plane to obtain dot data for the second distinct colour plane; providing the dot data for the first distinct colour plane to a first print head cartridge for printing by a plurality of nozzle rows of the first print head cartridge; and providing the dot data for the second distinct colour plane to a second print head cartridge positioned downstream from the first print head cartridge in a direction of print media propagation, the dot data for the second distinct colour plane for printing by a plurality of nozzle rows of the second print head cartridge.
    Type: Application
    Filed: October 14, 2011
    Publication date: April 19, 2012
    Inventors: Mark Profaca, Julian Paul Kolodko, William John Stacey, Stephen John Sleijpen, Craig Donald Strudwicke, Neil Fyfe Edwards, Lance Thomas Brown, Toby Desmond Oste, Eric Patrick O'Donnell, Peter John Morley Sobey, David Bernardi, James Andrew
  • Publication number: 20120092403
    Abstract: A colour ink printing system includes a plurality of print head cartridges, each extending across a direction of print media propagation and spaced apart along the direction of print media propagation; a print head chassis for supporting the plurality of print head cartridges, the print head chassis actuable between a printing position, a transition position, and a maintenance position; and a maintenance chassis for supporting a plurality of maintenance cradles, the maintenance chassis actuable between a storage position and an operational position. Each of the plurality of print head cartridges is held stationary with respect to a platen on which print media is propagated to effect printing on the print media. Each of the plurality of print head cartridges is a monochrome print head cartridge ejecting a fluid different to the remaining plurality of print head cartridges.
    Type: Application
    Filed: October 14, 2011
    Publication date: April 19, 2012
    Inventors: Mark Profaca, Julian Paul Kolodko, William John Stacey, Stephen John Sleijpen, Craig Donald Strudwicke, Neil Fyfe Edwards, Lance Thomas Brown, Toby Desmond Oste, Eric Patrick O'Donnell, Peter John Morley Sobey, David Bernardi, James Andrew
  • Publication number: 20120092414
    Abstract: A colour ink printing system includes a plurality of print head cartridges, each extending across a direction of print media propagation and spaced apart along the direction of print media propagation; a print head chassis for supporting the plurality of print head cartridges, the print head chassis actuable between a printing position, a transition position, and a maintenance position; and a maintenance chassis for supporting a plurality of maintenance cradles, the maintenance chassis actuable between a storage position and an operational position, each maintenance cradle including a capper and a cleaner. Each of the plurality of print head cartridges is held stationary with respect to a platen on which print media is propagated to effect printing on the print media. Each of the plurality of print head cartridges is a monochrome print head cartridge ejecting a fluid different to the remaining plurality of print head cartridges.
    Type: Application
    Filed: October 14, 2011
    Publication date: April 19, 2012
    Inventors: Mark Profaca, Julian Paul Kolodko, William John Stacey, Stephen John Sleijpen, Craig Donald Strudwicke, Neil Fyfe Edwards, Lance Thomas Brown, Toby Desmond Oste, Eric Patrick O'Donnell, Peter John Morley Sobey, David Bernardi, James Andrew
  • Publication number: 20120092419
    Abstract: A colour ink printing system, includes a plurality of print head cartridges, each extending across a direction of print media propagation and spaced apart along the direction of print media propagation; a print head chassis for supporting the plurality of print head cartridges, the print head chassis actuable between a printing position, a transition position, and a maintenance position; a maintenance chassis for supporting a plurality of maintenance cradles, the maintenance chassis actuable between a storage position and an operational position; and a platen on which the print media is supported and propagated. Each of the plurality of print head cartridges is held stationary with respect to a platen on which print media is propagated to effect printing on the print media. Each of the plurality of print head cartridges is a monochrome print head cartridge ejecting a fluid different to the remaining plurality of print head cartridges.
    Type: Application
    Filed: October 14, 2011
    Publication date: April 19, 2012
    Inventors: Mark Profaca, Julian Paul Kolodko, William John Stacey, Stephen John Sleijpen, Craig Donald Strudwicke, Neil Fyfe Edwards, Lance Thomas Brown, Toby Desmond Oste, Eric Patrick O'Donnell, Peter John Morley Sobey, David Bernardi, James Andrew
  • Publication number: 20120006494
    Abstract: A bonding device for bonding a flexible printed circuit board (PCB) to a printhead assembly includes an enclosed work area; a first heater assembly provided within the enclosed work area and movable along a first path; a bending mechanism provided within the enclosed work area and adapted to bend the bonded PCB; a second heater assembly provided within the enclosed work area and movable along a second path; a nest structure for receiving the printhead assembly, the nest structure movable along a third path; and a control system to control operation of the heater assemblies, bending mechanism, and nest structure. The first path and the second path are constrained to an area within the enclosed work area, and the third path crosses a boundary of the enclosed work area.
    Type: Application
    Filed: August 29, 2011
    Publication date: January 12, 2012
    Inventors: Stephen Richard O'Farrell, Jan Waszczuk, Stephen John Sleijpen, James Andrew, Craig Donald Strudwicke, William Granger, Mark Janos
  • Patent number: 8092625
    Abstract: This invention relates to a dice placement assembly for placing dice on a carrier. The assembly includes a support platform with a clamp mechanism configured to clamp the carrier onto said platform, and at least one camera operatively directed at the platform to detect alignment fiducials on the carrier. The assembly also includes a placement device having a vacuum mechanism to retrieve the dice from a supply mechanism, said placement device having actuators to align the dice with the carrier and to place the dice thereon once aligned, and a heater to heat the dice prior to placement on the test bed. Further included is a controller operatively controlling the clamp mechanism, the camera and the placement device, to facilitate accurate placement of the dice on the carrier.
    Type: Grant
    Filed: August 19, 2008
    Date of Patent: January 10, 2012
    Assignee: Silverbrook Research Pty Ltd
    Inventors: David Oliver Burke, Jan Waszczuk, Desmond Bruce Boyton, Craig Donald Strudwicke, William Granger, Jason Mark Thelander, Eric Patrick O'Donnell, Peter John Morley Sobey
  • Patent number: 8020281
    Abstract: The present invention relates to a bonding device for bonding a flexible printed circuit board (PCB) to a printhead assembly. The printhead assembly includes a printhead carrier and an ink ejection printhead carried by the carrier. The bonding device includes a support structure assembly and a first heater assembly arranged on the support structure assembly to be movable along a first path and configured to bond the flexible PCB to the printhead. A bending mechanism is arranged on the support structure and is configured to bend the bonded PCB. A second heater assembly is arranged on the support structure assembly to be movable along a second path and is configured to bond the bent PCB to the printhead carrier. A control system controls operation of the heater assemblies and the bending mechanism.
    Type: Grant
    Filed: August 19, 2008
    Date of Patent: September 20, 2011
    Assignee: Silverbrook Research Pty Ltd
    Inventors: Stephen Richard O'Farrell, Jan Waszczuk, Stephen John Sleijpen, James Andrew, Craig Donald Strudwicke, William Granger, Mark Janos
  • Patent number: 7979979
    Abstract: The invention provides for a clamp assembly for an assembler for assembling printhead integrated circuits on a carrier. The assembler has an enclosure with a support assembly for operatively supporting a wafer with dies thereon, a die picking assembly for picking dice from said wafer, a die placement assembly for placing the dies onto the carrier, a die conveyance mechanism operatively conveying the dies from the die picking and placement assemblies, and a control system controlling the assembler. The clamp assembly includes an elongate clamp body, the body shaped and configured to be received by the die placement assembly, and a pair of elongate retaining plates mounted on top of the body. The clamp also includes an insert shaped and dimensioned to be received in the body below the plates, the insert operatively receiving said carrier, as well as a diaphragm positioned in the body, the diaphragm pneumatically displaceable to operatively urge the insert against the retaining plates.
    Type: Grant
    Filed: August 19, 2008
    Date of Patent: July 19, 2011
    Assignee: Silverbrook Research Pty Ltd
    Inventors: David Oliver Burke, Jan Waszczuk, Desmond Bruce Boyton, Craig Donald Strudwicke, Peter John Morley Sobey, William Granger, Jason Mark Thelander, Eric Patrick O'Donnell
  • Publication number: 20110043583
    Abstract: A continuous web printer that has an inlet for receiving a web of media from a media web roll unwinder, an outlet for delivery to a media web roll winder, an air platen frame for generating an air cushion at least partially defining a media feed path and a plurality of pagewidth inkjet printheads positioned adjacent the media feed path for printing on both sides of the web.
    Type: Application
    Filed: August 20, 2010
    Publication date: February 24, 2011
    Inventors: Kia Silverbrook, Mark Profaca, Craig Donald Strudwicke, Jason Mark Thelander
  • Publication number: 20110043554
    Abstract: A continuous web printer that has an inlet for receiving a web of media from a media web roll unwinder, an outlet for delivery to a media web roll winder, a media feed path extending from the inlet to the outlet, a plurality of pagewidth inkjet printhead assemblies positioned adjacent the media feed path for printing on both sides of the web and a central processor for inputting print data to the pagewidth inkjet printhead assemblies such that during a print run, the pagewidth inkjet printhead assemblies print many copies of a document The central processor is configured to selectively alter one or more of the copies to be non-identical to the remainder of the copies without interruption to the print run.
    Type: Application
    Filed: August 20, 2010
    Publication date: February 24, 2011
    Inventors: Kia Silverbrook, Mark Profaca, Craig Donald Strudwicke, Jason Mark Thelander
  • Publication number: 20110043584
    Abstract: A continuous web printer that has an inlet for receiving a web of media from a media web roll unwinder, an outlet for delivery to a media web roll winder, a media feed path extending from the inlet to the outlet, a plurality of pagewidth printhead assemblies for printing on both sides of the web and a printhead drawer for mounting at least one of the pagewidth printhead assemblies adjacent the media feed path. The printhead drawer is configured to move transverse to the media feed path such that the at least one pagewidth printhead assembly is exposed for servicing.
    Type: Application
    Filed: August 20, 2010
    Publication date: February 24, 2011
    Inventors: Kia Silverbrook, Mark Profaca, Craig Donald Strudwicke, Jason Mark Thelander
  • Publication number: 20110043585
    Abstract: A continuous web printer that has an inlet for receiving a web of media from a media web roll unwinder, an outlet for delivery to a media web roll winder, a media feed path extending from the inlet to the outlet and a plurality of pagewidth printhead assemblies for printing on both sides of the web. The media feed path has an upper print zone positioned above a lower print zone. The upper print zone is a section of the media feed path in which one side of the web is printed and the lower print zone being a section of the media feed path in which the other side of the web is printed.
    Type: Application
    Filed: August 20, 2010
    Publication date: February 24, 2011
    Inventors: Kia Silverbrook, Mark Profaca, Craig Donald Strudwicke, Jason Mark Thelander
  • Publication number: 20110043580
    Abstract: A continuous web printer that has an inlet for receiving a web of media from a media web roll unwinder, an outlet for delivery to a media web roll winder, a media feed path extending from the inlet to the outlet and pagewidth inkjet printhead assemblies positioned adjacent the media feed path for printing on both sides of the web. The media feed path extends less than 10 meters from a point where during use, the web is blank, to a point where both sides of the web are printed.
    Type: Application
    Filed: August 20, 2010
    Publication date: February 24, 2011
    Inventors: Kia Silverbrook, Mark Profaca, Craig Donald Strudwicke, Jason Mark Thelander
  • Publication number: 20110043581
    Abstract: A continuous web printer that has an inlet for receiving a web of media from a media web roll unwinder, an outlet for delivery to a media web roll winder, a media feed path extending from the inlet to the outlet and pagewidth inkjet printhead assemblies positioned adjacent the media feed path for printing on both sides of the web. The media feed path has a first print zone positioned adjacent a second print zone. The first print zone is a section of the media feed path in which one side of the web is printed. The second print zone is a section of the media feed path in which the other side of the web is printed. During use the web is fed along the media feed path in a feed direction, the feed direction in the first print zone is opposed to the feed direction in the second print zone.
    Type: Application
    Filed: August 20, 2010
    Publication date: February 24, 2011
    Inventors: Kia Silverbrook, Mark Profaca, Craig Donald Strudwicke, Jason Mark Thelander