Patents by Inventor David DOSWELL
David DOSWELL 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: 12145366Abstract: A binary array ink jet printhead assembly includes a cavity for containing ink, nozzle orifices in fluid communication with the cavity for passing the ink from the cavity to form droplets, the nozzle orifices extending along a length of the cavity, and an electrode assembly. The electrode assembly includes a front face configured to be disposed generally parallel to a plurality of droplet paths of droplets from the nozzle orifices. A plurality of charge electrodes are disposed on the front face, each charge electrode corresponding to a droplet path and disposed parallel to the droplet path. Circuitry is disposed on the electrode assembly, wherein each electrode is electrically connected to the circuitry. The circuitry is further in electrical connection to a connector for connecting the electrode assembly to a controller for the printhead.Type: GrantFiled: January 13, 2022Date of Patent: November 19, 2024Assignee: Videojet Technologies Inc.Inventors: Nigel Sherman, David Horsnell, Robert Smith, David Doswell, Steven Harris
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Publication number: 20220212468Abstract: A binary array ink jet printhead assembly includes a cavity for containing ink, nozzle orifices in fluid communication with the cavity for passing the ink from the cavity to form droplets, the nozzle orifices extending along a length of the cavity, and an electrode assembly. The electrode assembly includes a front face configured to be disposed generally parallel to a plurality of droplet paths of droplets from the nozzle orifices. A plurality of charge electrodes are disposed on the front face, each charge electrode corresponding to a droplet path and disposed parallel to the droplet path. Circuitry is disposed on the electrode assembly, wherein each electrode is electrically connected to the circuitry. The circuitry is further in electrical connection to a connector for connecting the electrode assembly to a controller for the printhead.Type: ApplicationFiled: January 13, 2022Publication date: July 7, 2022Inventors: Nigel Sherman, David Horsnell, Robert Smith, David Doswell, Steven Harris
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Patent number: 11254130Abstract: A binary array ink jet printhead assembly includes a cavity for containing ink, nozzle orifices in fluid communication with the cavity for passing the ink from the cavity to form droplets, the nozzle orifices extending along a length of the cavity, and an electrode assembly. The electrode assembly includes a front face configured to be disposed generally parallel to a plurality of droplet paths of droplets from the nozzle orifices. A plurality of charge electrodes are disposed on the front face, each charge electrode corresponding to a droplet path and disposed parallel to the droplet path. Circuitry is disposed on the electrode assembly, wherein each electrode is electrically connected to the circuitry. The circuitry is further in electrical connection to a connector for connecting the electrode assembly to a controller for the printhead.Type: GrantFiled: March 25, 2015Date of Patent: February 22, 2022Assignee: VIDEOJET TECHNOLOGIES INC.Inventors: Nigel Sherman, David Horsnell, Robert Smith, David Doswell, Steven Harris
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Patent number: 10399348Abstract: A removable module for an inkjet printer comprises: a housing; a plurality of fluid conduits; two cartridge connections; a printer connection; and an electrical link. The plurality of fluid conduits are disposed within the housing. The two cartridge connections are each for releasable engagement with a fluid cartridge. Each cartridge connection is exposed by the housing and comprises: a fluid connector for engaging an outlet of a fluid cartridge to allow fluid to flow from the engaged cartridge to one of the plurality of fluid conduits; and an electrical contact arranged to contact a corresponding contact on the engaged fluid cartridge. The printer connection is for releasable engagement with an inkjet printer.Type: GrantFiled: June 14, 2016Date of Patent: September 3, 2019Assignee: VIDEOJET TECHNOLOGIES INC.Inventors: Robert Smith, David Doswell
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Publication number: 20180354269Abstract: A removable module for an inkjet printer comprises: a housing; a plurality of fluid conduits; two cartridge connections; a printer connection; and an electrical link. The plurality of fluid conduits are disposed within the housing. The two cartridge connections are each for releasable engagement with a fluid cartridge. Each cartridge connection is exposed by the housing and comprises: a fluid connector for engaging an outlet of a fluid cartridge to allow fluid to flow from the engaged cartridge to one of the plurality of fluid conduits; and an electrical contact arranged to contact a corresponding contact on the engaged fluid cartridge. The printer connection is for releasable engagement with an inkjet printer.Type: ApplicationFiled: June 14, 2016Publication date: December 13, 2018Inventors: Robert SMITH, David DOSWELL
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Publication number: 20170008283Abstract: A binary array ink jet printhead assembly includes a cavity for containing ink, nozzle orifices in fluid communication with the cavity for passing the ink from the cavity to form droplets, the nozzle orifices extending along a length of the cavity, and an electrode assembly. The electrode assembly includes a front face configured to be disposed generally parallel to a plurality of droplet paths of droplets from the nozzle orifices. A plurality of charge electrodes are disposed on the front face, each charge electrode corresponding to a droplet path and disposed parallel to the droplet path. Circuitry is disposed on the electrode assembly, wherein each electrode is electrically connected to the circuitry. The circuitry is further in electrical connection to a connector for connecting the electrode assembly to a controller for the printhead.Type: ApplicationFiled: March 25, 2015Publication date: January 12, 2017Inventors: SHERMAN NIGEL, HORSNELL DAVID, ROBERT SMITH, DAVID DOSWELL, STEVEN HARRIS
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Publication number: 20160136672Abstract: A mist-generating device is provided. The device comprises a housing (89) and a nozzle (100) located within the housing (89). The nozzle (100) is movable between a retracted position inside the housing (89) and a deployed position outside the housing (89). A drain chamber (170) is defined between the housing (89) and nozzle (100) when the nozzle (100) is in the retracted position. A drain passage (174) provides fluid communication away from the drain chamber (170). A portable mist-generating apparatus which may incorporate the mist-generating device is also provided, as is a method of operating the mist-generating device.Type: ApplicationFiled: June 3, 2014Publication date: May 19, 2016Applicant: TYCO FIRE & SECURITY GMBHInventors: David DOSWELL, JAMES FRENCH
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Patent number: D796021Type: GrantFiled: June 7, 2016Date of Patent: August 29, 2017Assignee: VIDEOJET TECHNOLOGIES INC.Inventors: Michael Stamp, Paul King, David Doswell
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Patent number: D806163Type: GrantFiled: December 15, 2015Date of Patent: December 26, 2017Assignee: Videojet Technologies Inc.Inventors: Robert Smith, Salhadin Omer, Paul King, David Doswell
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Patent number: D806164Type: GrantFiled: June 7, 2016Date of Patent: December 26, 2017Assignee: Videojet Technologies Inc.Inventors: Robert Smith, David Doswell