Patents by Inventor David Mark Blakey
David Mark Blakey 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: 9682201Abstract: Methods, systems, and devices are described for creating a negative bias pressure within a liquid reservoir. Embodiments may include providing a liquid reservoir coupled with an aerosol generator. The liquid reservoir may be sealed to create the sealed reservoir. An ambient pressure may be maintained while the liquid reservoir is being sealed and the ambient pressure may be maintained in the sealed liquid reservoir until a portion of the liquid is dispensed. Further, embodiments may include vibrating the aperture plate to dispense the portion of the liquid. The portion of the liquid dispensed may decreases the amount of the liquid in the sealed reservoir. By decreasing the amount of liquid in the sealed reservoir, a negative bias pressure between an air side and a liquid side of the aperture plate may be created.Type: GrantFiled: June 17, 2015Date of Patent: June 20, 2017Assignee: Nektar TherapeuticsInventors: David Mark Blakey, Richard Francis Day
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Publication number: 20150283336Abstract: Methods, systems, and devices are described for creating a negative bias pressure within a liquid reservoir. Embodiments may include providing a liquid reservoir coupled with an aerosol generator. The liquid reservoir may be sealed to create the sealed reservoir. An ambient pressure may be maintained while the liquid reservoir is being sealed and the ambient pressure may be maintained in the sealed liquid reservoir until a portion of the liquid is dispensed. Further, embodiments may include vibrating the aperture plate to dispense the portion of the liquid. The portion of the liquid dispensed may decreases the amount of the liquid in the sealed reservoir. By decreasing the amount of liquid in the sealed reservoir, a negative bias pressure between an air side and a liquid side of the aperture plate may be created.Type: ApplicationFiled: June 17, 2015Publication date: October 8, 2015Applicant: NEKTAR THERAPEUTICSInventors: David Mark Blakey, Richard Francis Day
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Patent number: 9084862Abstract: Methods, systems, and devices are described for creating a negative bias pressure within a liquid reservoir. Embodiments may include providing a liquid reservoir coupled with an aerosol generator. The liquid reservoir may be sealed to create the sealed reservoir. An ambient pressure may be maintained while the liquid reservoir is being sealed and the ambient pressure may be maintained in the sealed liquid reservoir until a portion of the liquid is dispensed. Further, embodiments may include vibrating the aperture plate to dispense the portion of the liquid. The portion of the liquid dispensed may decreases the amount of the liquid in the sealed reservoir. By decreasing the amount of liquid in the sealed reservoir, a negative bias pressure between an air side and a liquid side of the aperture plate may be created.Type: GrantFiled: July 19, 2010Date of Patent: July 21, 2015Assignee: NEKTAR THERAPEUTICSInventors: David Mark Blakey, Richard Francis Day
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Patent number: 8734131Abstract: A fluid pump comprising a chamber which, in use, contains a fluid to be pumped, the chamber including a main cavity having a substantially cylindrical shape bounded by first and second end walls and a side wall and a secondary cavity extending radially outwards of the main cavity, one or more actuators which, in use, cause oscillatory motion of the first end wall in a direction substantially perpendicular to the plane of the first end wall, and whereby, in use, the axial oscillations of the end walls drive radial oscillations of the fluid pressure in the main cavity, and wherein the secondary cavity spaces the side wall from the first end wall such that the first end wall can move relative to the side wall when the actuator is activated.Type: GrantFiled: March 13, 2009Date of Patent: May 27, 2014Assignee: The Technology Partnership PlcInventors: James Edward McCrone, Justin Rorke Buckland, David Mark Blakey
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Publication number: 20120118284Abstract: Methods, systems, and devices are described for creating a negative bias pressure within a liquid reservoir. Embodiments may include providing a liquid reservoir coupled with an aerosol generator. The liquid reservoir may be sealed to create the sealed reservoir. An ambient pressure may be maintained while the liquid reservoir is being sealed and the ambient pressure may be maintained in the sealed liquid reservoir until a portion of the liquid is dispensed. Further, embodiments may include vibrating the aperture plate to dispense the portion of the liquid. The portion of the liquid dispensed may decreases the amount of the liquid in the sealed reservoir. By decreasing the amount of liquid in the sealed reservoir, a negative bias pressure between an air side and a liquid side of the aperture plate may be created.Type: ApplicationFiled: July 19, 2010Publication date: May 17, 2012Applicant: Nektar TherapeuticsInventors: David Mark Blakey, Richard Francis Day
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Patent number: 8123502Abstract: A fluid pump comprising one or more actuators, two end walls, a side wall; a cavity which, in use, contains fluid, the cavity having a substantially cylindrical shape bounded by the end walls and the side walls, at least two apertures through the cavity walls, at least one of which is a valved aperture, wherein the cavity radius, a, and height, h, satisfy the following inequalities: a/h is greater than 1.2; and h2/a is greater than 4×10?10 m; and wherein, in use, the actuator causes oscillatory motion of one or both end walls in a direction perpendicular to the plane of the end walls; whereby, in use, the axial oscillations of the end walls drive radial oscillations of fluid pressure in the cavity.Type: GrantFiled: April 21, 2006Date of Patent: February 28, 2012Assignee: The Technology Partnership plcInventors: David Mark Blakey, John Matthew Somerville, James Edward McCrone, Justin Rorke Buckland
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Publication number: 20110081267Abstract: A fluid pump comprising a chamber which, in use, contains a fluid to be pumped, the chamber including a main cavity having a substantially cylindrical shape bounded by first and second end walls and a side wall and a secondary cavity extending radially outwards of the main cavity, one or more actuators which, in use, cause oscillatory motion of the first end wall in a direction substantially perpendicular to the plane of the first end wall, and whereby, in use, the axial oscillations of the end walls drive radial oscillations of the fluid pressure in the main cavity, and wherein the secondary cavity spaces the side wall from the first end wall such that the first end wall can move relative to the side wall when the actuator is activated.Type: ApplicationFiled: March 13, 2009Publication date: April 7, 2011Inventors: James Edward McCrone, David Mark Blakey
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Publication number: 20090087323Abstract: A fluid pump comprising one or more actuators, two end walls, a side wall; a cavity which, in use, contains fluid, the cavity having a substantially cylindrical shape bounded by the end walls and the side walls, at least two apertures through the cavity walls, at least one of which is a valved aperture, wherein the cavity radius, a, and height, h, satisfy the following inequalities: a/h is greater than 1.2; and h2/a is greater than 4×10?10 m; and wherein, in use, the actuator causes oscillatory motion of one or both end walls in a direction perpendicular to the plane of the end walls; whereby, in use, the axial oscillations of the end walls drive radial oscillations of fluid pressure in the cavity.Type: ApplicationFiled: April 21, 2006Publication date: April 2, 2009Inventors: David Mark Blakey, John Matthew Somerville, James Edward McCrone, Justin Rorke Buckland
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Patent number: 7316067Abstract: A method of forming a perforate membrane (1) is disclosed for use in a liquid transport device. The membrane has at least plural nozzles (10) formed therethrough. Each of those nozzles has a throat portion (12) opening at opposite end through opposite surface (2?) of the perforate membrane and a smoothly curved outwardly diverging portion (11) extending from the first end of the throat portion to the first surface (2) of the perforate membrane. Laser energy is applied selectively to the first surface (2) of the membrane in the form of a pulsed, focused beam to form the nozzles (10) and thereafter the first surface (2) of the membrane and the surface of the diverging portion (11) of the nozzles (10) are electro-polished to remove surface imperfections. The electro-polishing is controlled so as to remove material from the surface of the diverging portion (11) of the nozzles to a depth less than the length of the throat portion (12).Type: GrantFiled: September 6, 2002Date of Patent: January 8, 2008Assignee: The Technology PartnershipInventor: David Mark Blakey
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Patent number: 7284962Abstract: This invention provides a fluid pump using perforate elements and closure elements which are alternately displace and relates particularly but not exclusively to miniature fluid pumps and pumps suitable for delivery of liquid pharmaceutical formulations. In the art of miniature liquid pumps are known pumps based on peristaltic and “pump chamber” principles. (Peristaltic pumps may be used to pump fluids in general, that is, liquids or gases). Both types of pump are used in ambulatory pump products for delivery of liquid medicaments, for which application miniaturization and low weight are important attributes.Type: GrantFiled: May 24, 2002Date of Patent: October 23, 2007Assignee: The Technology Partnership PLCInventor: David Mark Blakey
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Publication number: 20040146407Abstract: This invention provides a fluid pump using perforate elements and closure elements which are alternately displace and relates particularly but not exclusively to miniature fluid pumps and pumps suitable for delivery of liquid pharmaceutical formulations. In the art of miniature liquid pumps are known pumps based on peristaltic and “pump chamber” principles. (Peristaltic pumps may be used to pump fluids in general, that is, liquids or gases). Both types of pump are used in ambulatory pump products for delivery of liquid medicaments, for which application miniaturization and low weight are important attributes.Type: ApplicationFiled: November 24, 2003Publication date: July 29, 2004Inventor: David Mark Blakey
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Patent number: 6659364Abstract: A method of and apparatus for generating liquid droplets from an aperture in a membrane are disclosed in which the aperture has a diameter &phgr; at one face which is at most as large as its diameter at the other face, and a liquid is provided to the one face of the membrane adjacent the aperture. The liquid has a surface tension &sgr; and density &rgr;.Type: GrantFiled: August 14, 2001Date of Patent: December 9, 2003Assignee: The Technology Partnership, PLCInventors: Victor Carey Humberstone, David Mark Blakey
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Patent number: 6217154Abstract: An ejection apparatus for ejecting material from a liquid has an ejection cell (2) for containing the liquid in use. The cell (2) has a protrusion (3) disposed so as to be contacted by liquid in the cell on more than one side and defining a predetermined location for a meniscus of the liquid at an opening in the cell. An ejection electrode (6) is disposed in the cell at a position inwardly of the cell with respect to the predetermined location of the meniscus.Type: GrantFiled: July 17, 1998Date of Patent: April 17, 2001Assignee: Tonejet Corporation Pty. Ltd.Inventors: Guy Charles Fernley Newcombe, Matthew Alexander Schumann, Richard Wilhelm Janse Van Rensburg, Neil Emerton, David Mark Blakey
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Patent number: 6127082Abstract: An apparatus and method are described for supplying material to a substrate (109). The apparatus includes a member (3) having a surface with a plurality of features (8) which locate, in use, menisci of a liquid (1) supplied to the member. An actuator (4) induces mechanical vibrations within the liquid located by the features to cause liquid droplets (7) to be sprayed. Liquid (1) is supplied to the member and electrical charge is supplied to the member and electrical charge is supplied to the liquid by, for example, an electrode (14). Electrical charge or potential is also supplied to the substrate (109) so that the droplets are directed towards the substrate to deposit material thereon.Type: GrantFiled: January 12, 1998Date of Patent: October 3, 2000Assignee: TCC Group PLCInventors: Victor Carey Humberstone, Andrew Jonathan Sant, David Mark Blakey, Peter John Taylor, Richard Wilhelm Janse Van Rensburg