Patents by Inventor Richard COULL
Richard COULL 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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Publication number: 20240059062Abstract: The present disclosure provides a printhead assembly comprising: a plurality of printhead modules (100a), including a first printhead module, a second printhead module and a third printhead module. Each of the plurality of printhead modules (100a) comprises: a plurality of printhead nozzles (126) each provided with an actuator (118) for selectively ejecting print agent therefrom; at least one print agent manifold (122, 124) providing a fluid communication pathway between at least one print agent inlet and the plurality of printhead nozzles (126); and control circuitry (104) to control the actuators (118) of the printhead module (100a) to eject print agent from the printhead nozzles (126). The first printhead module is mounted to the third printhead module via the second printhead module.Type: ApplicationFiled: December 29, 2021Publication date: February 22, 2024Inventors: Gregory John MCAVOY, Richard COULL
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Patent number: 10100500Abstract: According to an example, a system for managing a fluid condition in a pipe includes a controller to receive temperatures of the pipe detected by the temperature sensor over a period of time. The controller may determine, based upon the temperatures of the pipe over the period of time, a temperature profile of the pipe and may determine that the temperature profile of the pipe indicates that a freezing onset event has occurred. The freezing onset event may include a transition from a drop in temperature to an increase in temperature, in which the temperature during the transition is below a freezing point temperature of a fluid contained in the pipe. The controller may further trigger at least one of an alarm and an activation of a first freezing prevention device in response to the determination that the freezing onset event has occurred.Type: GrantFiled: May 28, 2014Date of Patent: October 16, 2018Assignee: Ent. Services Development Corporation LPInventors: Kevin Dooley, Richard Coull, Pat J. Reilly
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Publication number: 20180275082Abstract: A structure for a chemical sensing device includes a plurality of recesses and a plurality of electrically conductive elements located in, and protruding from, the plurality of recesses.Type: ApplicationFiled: May 25, 2018Publication date: September 27, 2018Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.Inventors: Kevin Dooley, Richard Coull, Graeme Scott, Lorraine Byrne
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Patent number: 10078065Abstract: A structure for a chemical sensing device includes a plurality of recesses and a plurality of electrically conductive elements located in, and protruding from, the plurality of recesses.Type: GrantFiled: July 25, 2016Date of Patent: September 18, 2018Assignee: Hewlett-Packard Development Company, L.P.Inventors: Kevin Dooley, Richard Coull, Graeme Scott, Lorraine Byrne
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Patent number: 9964508Abstract: A water vapor sensor comprises a substrate and a film of carbon nanotubes impregnated with surfactant on the substrate. The substrate is of material which is inert relative to the film. Two or more electrical conductors are in contact with in spaced apart zones of the film, whereby the impedance of the film may be measured. The sensor is housed in housing which protects the sensor but also allows exposure of the film to water vapor.Type: GrantFiled: March 12, 2017Date of Patent: May 8, 2018Assignee: Hewlett-Packard Development Company, L.P.Inventors: Graeme Scott, Richard Coull, Vittorio Scardaci
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Publication number: 20170184530Abstract: A water vapour sensor comprises a substrate and a film of carbon nanotubes impregnated with surfactant on the substrate. The substrate is of material which is inert relative to the film. Two or mote electrical conductors are in contact with in spaced apart zones of the film, whereby the impedance of the film may be measured. The sensor is housed in housing which protects the sensor but also allows exposure of the film to water vapour.Type: ApplicationFiled: March 12, 2017Publication date: June 29, 2017Inventors: Graeme Scott, Richard Coull, Vittorio Scardaci
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Publication number: 20170146475Abstract: A structure for a chemical sensing device includes a plurality of recesses and a plurality of electrically conductive elements located in, and protruding from, the plurality of recesses.Type: ApplicationFiled: July 25, 2016Publication date: May 25, 2017Inventors: Kevin Dooley, Richard Coull, Graeme Scott, Lorraine Byrne
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Publication number: 20170138023Abstract: According to an example, a system for managing a fluid condition in a pipe includes a controller to receive temperatures of the pipe detected by the temperature sensor over a period of time. The controller may determine, based upon the temperatures of the pipe over the period of time, a temperature profile of the pipe and may determine that the temperature profile of the pipe indicates that a freezing onset event has occurred. The freezing onset event may include a transition from a drop in temperature to an increase in temperature, in which the temperature during the transition is below a freezing point temperature of a fluid contained in the pipe. The controller may further trigger at least one of an alarm and an activation of a first freezing prevention device in response to the determination that the freezing onset event has occurred.Type: ApplicationFiled: May 28, 2014Publication date: May 18, 2017Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LPInventors: Kevin DOOLEY, Richard COULL, Pat J. REILLY
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Patent number: 9618469Abstract: A water vapor sensor comprises a substrate and a film of carbon nanotubes impregnated with surfactant on the substrate. The substrate is of material which is inert relative to the film. Two or more electrical conductors are in contact with in spaced apart zones of the film, whereby the impedance of the film may be measured. The sensor is housed in housing which protects the sensor but also allows exposure of the film to water vapor.Type: GrantFiled: September 19, 2011Date of Patent: April 11, 2017Assignee: Hewlett-Packard Development Company, L.P.Inventors: Graeme Scott, Richard Coull, Vittorio Scardaci
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Patent number: 9609755Abstract: Devices with nanosized particles deposited on shaped surface geometries include a substrate with an active material of nanosized particles deposited on a surface of the substrate. The active material has an edge formed at a position determined with a shaped geometry of the surface.Type: GrantFiled: January 17, 2013Date of Patent: March 28, 2017Assignee: Hewlett-Packard Development Company, L.P.Inventors: Richard Coull, Kevin Dooley, David Fitzpatrick
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Patent number: 9410911Abstract: A structure for a chemical sensing device, the structure comprising at least one electrically conductive element located in, and protruding from, at least one recess. A method of manufacturing the structure includes: (a) providing a template comprising at least one recess having a recess depth; (b) providing an electrically conductive material in the at least one recess; and (c) removing part of the template to decrease the recess depth of the at least one recess, thereby forming said protruding at least one electrically conductive element.Type: GrantFiled: April 23, 2013Date of Patent: August 9, 2016Assignee: Hewlett-Packard Development Company, L.P.Inventors: Kevin Dooley, Richard Coull, Graeme Scott, Lorraine Byrne
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Publication number: 20140182372Abstract: A water vapour sensor comprises a substrate and a film of carbon nanotubes impregnated with surfactant on the substrate. The substrate is of material which is inert relative to the film. Two or more electrical conductors are in contact with in spaced apart zones of the film, whereby the impedance of the film may be measured. The sensor is housed in housing which protects the sensor but also allows exposure of the film to water vapour.Type: ApplicationFiled: September 19, 2011Publication date: July 3, 2014Inventors: Graeme Scott, Richard Coull, Vittorio Scardaci
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Publication number: 20130195140Abstract: The present invention relates to a temperature sensor comprising a network of carbon nanotubes, wherein an electrical resistance of the network of carbon nanotubes is indicative of a temperature to which the network of carbon nanotubes has been exposed. The present invention further relates to a time temperature indicator and a method of manufacturing a temperature sensor.Type: ApplicationFiled: January 31, 2012Publication date: August 1, 2013Inventors: Vittorio Scardaci, Graeme Scott, Richard Coull, Lorraine Byrne, Jonathan Coleman
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Publication number: 20120219702Abstract: A film can be patterned with a nanomaterial. Such patterning can, in various embodiments, be performed by applying a uniform mixture of a solute in a solvent to a surface of the film to form a coating of a soluble material on the surface of the film in a pre-defined pattern that defines coated parts of the film and uncoated parts of the film, depositing an aqueous dispersion, including the nanomaterial and a surfactant, on the defined coated and uncoated parts of the film, washing the film to remove the coating of the soluble material and the nanomaterial from the defined coated parts of the film, but not removing the nanomaterial from the defined uncoated parts of the film, along with removing the surfactant from the defined coated and uncoated parts of the film, and leaving a pattern of the nanomaterial on the defined uncoated parts of the film.Type: ApplicationFiled: February 24, 2011Publication date: August 30, 2012Inventors: Graeme Scott, Lorraine Byrne, Richard Coull, Vittorio Scardaci
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Publication number: 20120196053Abstract: Creating an electrically conductive transparent structure. Liquid droplets comprising electrically conductive nanomaterial are deposited randomly onto a surface of a supporting substrate at a desired density to form an electrically conductive transparent network wherein the droplets are released from an applicator. A rate of drying of the liquid is controlled such that the liquid is able to evaporate without substantially damaging the supporting substrate.Type: ApplicationFiled: January 28, 2011Publication date: August 2, 2012Inventors: Richard COULL, Vittorio Scardaci, Kevin Dooley