Patents by Inventor Peter David

Peter David 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).

  • Publication number: 20140053368
    Abstract: A cyclonic separator comprising a first cyclone stage, a second cyclone stage, an inlet duct, and an outlet duct. The first cyclone stage comprises a first dirt collection chamber. The second cyclone stage is located downstream of the first cyclone stage and comprises a second dirt collection chamber. The inlet duct carries fluid to the first cyclone stage, and the outlet duct carries fluid from the second cyclone stage. The first dirt collection chamber then surrounds at least partly the inlet duct and the outlet duct.
    Type: Application
    Filed: April 16, 2012
    Publication date: February 27, 2014
    Applicant: DYSON TECHNOLOGY LIMITED
    Inventors: Peter David Gammack, Simon Edward Ireland, Jeremy William Crouch
  • Publication number: 20140053365
    Abstract: A cyclonic separator comprising a first cyclone stage, a second cyclone stage and an inlet duct. The first cyclone stage comprises a cyclone chamber and a first dirt collection chamber. The second cyclone stage is located downstream of the first cyclone stage and comprises a second dirt collection chamber. The inlet duct carries fluid from an opening in the base of the cyclonic separator to the cyclone chamber, and the first dirt collection chamber surrounds at least partly the inlet duct and the second dirt collection chamber.
    Type: Application
    Filed: April 16, 2012
    Publication date: February 27, 2014
    Applicant: Dyson Technology Limited
    Inventors: Peter David Gammack, Simon Edward Ireland, Jeremy William Crouch
  • Publication number: 20140047667
    Abstract: A cyclonic separator comprising a ring of cyclone bodies and an outlet duct through which cleansed fluid is discharged from the cyclonic separator, wherein the outlet duct extends between two adjacent cyclone bodies.
    Type: Application
    Filed: April 16, 2012
    Publication date: February 20, 2014
    Applicant: Dyson Technology Limited
    Inventors: James Stuart Robertson, Giles Ashbee, Peter David Gammack
  • Publication number: 20140047668
    Abstract: A cyclonic separator comprising a cyclone chamber defined between an outer wall and a shroud. The shroud comprises an inlet opening through which fluid enters the cyclone chamber, and a plurality of perforations through which fluid exits the cyclone chamber. Fluid within the cyclone chamber is then free to spiral about the shroud and over the inlet opening.
    Type: Application
    Filed: April 16, 2012
    Publication date: February 20, 2014
    Applicant: Dyson Technology Limited
    Inventors: James Dyson, Jeremy William Crouch, James Sruart Robertson, Peter David Gammack, Simon Edward Ireland
  • Patent number: 8650708
    Abstract: An upright surface treating appliance includes a main body having a user operable handle, and a support assembly for allowing the appliance to be rolled along a surface using the handle. The support assembly includes a yoke pivotably connected to the main body, and a pair of domed-shaped wheels rotatably connected to the yoke. A surface treating head is connected to the yoke. The yoke is shaped so that a section of the yoke is located between the rims of the wheels. To afford a compact appearance to the appliance, the outer surfaces of the wheels and the section of the yoke together at least partially delimit a substantially spherical volume.
    Type: Grant
    Filed: October 8, 2010
    Date of Patent: February 18, 2014
    Assignee: Dyson Technology Limited
    Inventors: James Dyson, Peter David Gammack, Stephen Benjamin Courtney, David Christopher James Newton, Samuel James Czerpak, Michael Sean Joynt
  • Publication number: 20140046162
    Abstract: A method for real-time observation of absolute ventricular volume wherein electrical measurements are made with a tetra polar catheter and compared to electrical measurements in a database, said database being assembled using electric field theory to predict the non-linear relation between blood volume and electrical measurements between a fist limit characterized by an infinitely thick volume of blood and second limit characterized by infinitely thick tissue completely surrounding the catheter. The calculations are performed under the assumption that the blood is surrounded by an infinitely thick region of tissue.
    Type: Application
    Filed: April 30, 2012
    Publication date: February 13, 2014
    Applicant: Transonic Scisense Inc.
    Inventors: John Rene Dubois, Anil Tharian George Kottam, Philip Chadwick Hodgson, Peter David Plouf, Geoffrey Kim Wood
  • Patent number: 8646148
    Abstract: A cleaning appliance of the canister type includes separating apparatus for separating dirt from a dirt-bearing fluid flow, a floor engaging rolling assembly including a device for drawing the fluid flow through the separating apparatus, a duct for conveying the fluid flow from the separating apparatus to the rolling assembly, and a mechanism for pivoting the separating apparatus relative to the duct.
    Type: Grant
    Filed: March 24, 2010
    Date of Patent: February 11, 2014
    Assignee: Dyson Technology Limited
    Inventors: David Robert Sunderland, Stuart Lloyd Genn, Peter David Gammack
  • Publication number: 20140029935
    Abstract: A receiver receives a predetermined pattern over an optical link from a transmitter. In response to detecting that the predetermined pattern satisfies at least one criterion, indicating that a synchronization point has been reached to allow link training of the optical link to be performed between the transmitter and receiver.
    Type: Application
    Filed: July 27, 2012
    Publication date: January 30, 2014
    Inventors: James Donald Regan, Peter David Maroni, Daniel Alan Berkram
  • Patent number: 8637567
    Abstract: This invention provides compounds, compositions and methods for treating a cognitive disorder or memory disorder in animals that result from aging or other neurodegenerative condition. In particular, compounds of this invention can stimulate neural cell growth, increased amounts of cells containing a key enzyme needed for production of the cholinergic neurotransmitter, and can improve memory and cognitive function in animals who have experienced a loss of memory or cognitive function.
    Type: Grant
    Filed: October 13, 2010
    Date of Patent: January 28, 2014
    Assignee: Neuren Pharmaceuticals Ltd.
    Inventors: Peter David Gluckman, Jian Guan, Mary-Anne Woodnorth, Margaret Anne Brimble
  • Publication number: 20140013686
    Abstract: A panel member (110) is provided for a wall structure (105) including a first surface (112) and a second surface (114) spaced from the first surface, at least one rib member (116) extending between the first and second surfaces, a first end member (120) and a second end member (122) each extending between the first and second surfaces, substantially parallel with the at least one rib member, so as to form at least two channels (118) between the first and second surfaces. The first end member has a male connector (150) extending therefrom and the second end member has a female connector (152) formed therein. The male and female connectors are each configured to be complementary, such that the male connector of the panel member is able to be received within a female connector of another panel member to facilitate connection of adjacent panel members to form the wall structure.
    Type: Application
    Filed: January 23, 2012
    Publication date: January 16, 2014
    Inventor: Peter David Langdon
  • Publication number: 20140017109
    Abstract: A scroll compressor 10 may include an orbiting scroll having an orbiting scroll wall extending axially from an orbiting scroll plate towards a fixed scroll; a fixed scroll having a fixed scroll wall extending axially from a fixed scroll plate towards the orbiting scroll; and an axially extending drive shaft having an eccentric shaft portion so that rotation of the eccentric shaft portion imparts an orbiting motion to the orbiting scroll relative to the fixed scroll. An axial end portion of the orbiting scroll wall has a first seal for sealing between the orbiting scroll wall and the fixed scroll plate, and an axial end portion of the fixed scroll wall has a second seal for sealing between the fixed scroll wall and the orbiting scroll plate; and the first seal or the second seal has an aspect ratio of axial length to radial width which is 1:1.25 or greater.
    Type: Application
    Filed: February 28, 2012
    Publication date: January 16, 2014
    Applicant: EDWARDS LIMITED
    Inventors: Alexander Murray Cameron, Peter David Jones
  • Publication number: 20140017401
    Abstract: A method of making a high density organic polymeric particle, suitable for use in milling, includes the steps of: providing an oil phase including a high density metal, a metal modifying agent, a cross-linkable organic monomer mixture, and an oil soluble polymerization initiator; admixing the oil phase under high shear conditions in an aqueous medium to produce droplets of the oil phase in the aqueous medium; and adding a hydrocolloid to the aqueous medium containing the droplets of the oil phase. The method further includes polymerizing the droplets of the oil phase to produce high density organic polymeric particles comprising a cross-linked polymer host matrix and a high density metal wherein the high density metal is within the interior of the cross-linked polymer host matrix.
    Type: Application
    Filed: July 13, 2012
    Publication date: January 16, 2014
    Inventors: JAMES R. BENNETT, Mridula Nair, Peter David Rollinson, Rajesh Vinodrai Mehta
  • Publication number: 20140018320
    Abstract: There are disclosed compound of Formula (1): A1, A2, A3 and A4 which may be the same or different, represent N or CR1, X is a divalent group selected from O, S(O)n, C?W, NR4, NC(?O)R5 and CR6R7, W is O, S, NR20, Y is N or CR8, one of R4, R5, R6, R8, R9 and NR20 represents -L-R3, in which L is a single bond or a linker group, additionally, R1, R3-R9, which may be the same or different, independently represent hydrogen or a substituent and R20 represents hydrogen, hydroxyl, alkyl optionally substituted by aryl, alkoxy optionally substituted by aryl, aryl, CN, optionally substituted alkoxy, optionally substituted aryloxy, optionally substitute alkanoyl, optionally substituted aroyl, NO2, NR30R31, in which R30 and R31, which may be the same or different, represent hydrogen, optionally substituted alkyl or optionally substituted aryl; additionally, one of R30 and R31 may represent optionally substituted alkanoyl or optionally substituted aroyl, n represents an integer from 0 to 2, in addition, when an adjacent pai
    Type: Application
    Filed: July 11, 2013
    Publication date: January 16, 2014
    Applicant: Summit Corporation PLC
    Inventors: GRAHAM MICHAEL WYNNE, STEPHEN PAUL WREN, PETER DAVID JOHNSON, PAUL DAMIEN PRICE, OLIVIER DE MOOR, GARY NUGENT, RICHARD STORER, RICHARD JOSEPH PYE, COLIN RICHARD DORGAN
  • Publication number: 20140013538
    Abstract: An autonomous vacuum cleaner comprising a chassis, a traction part for supporting the vacuum cleaner on a surface, a driving part for driving the traction part and a control system configured to control the driving part to guide the vacuum cleaner across a surface to be cleaned. The vacuum cleaner further includes a cleaner head having a dirty air inlet facing the surface to be cleaned and a separating apparatus carried by the chassis and communicating with the cleaner head in order to separate debris from an airflow entering the separating apparatus via the dirty air inlet. The separating apparatus comprises a first upstream cyclone and a plurality of second cyclones arranged in parallel with one another and located downstream of the first cyclone.
    Type: Application
    Filed: January 13, 2012
    Publication date: January 16, 2014
    Applicant: DYSON TECHNOLOGY LIMITED
    Inventors: James Dyson, Peter David Gammack
  • Publication number: 20140011782
    Abstract: Combinations comprising (or consisting essentially of) one or more compounds of formula (1) with one or more ancillary agents, to processes for preparing the combinations, and to various therapeutic uses of the combinations. Also provided are pharmaceutical compositions containing the combinations as well as a method of treatment of Duchenne muscular dystrophy, Becker muscular dystrophy or cachexia using the combinations.
    Type: Application
    Filed: June 7, 2013
    Publication date: January 9, 2014
    Inventors: Graham Michael WYNNE, Stephen Paul WREN, Peter David JOHNSON, Paul Damien PRICE, Olivier DE MOOR, Gary NUGENT, Richard STORER, Richard Joseph PYE, Colin Richard DORGAN
  • Publication number: 20140011247
    Abstract: The present invention relates to methods of synthesizing long-chain polyunsaturated fatty acids, especially eicosapentaenoic acid, docosapentaenoic acid and docosahexaenoic acid, in recombinant cells such as yeast or plant cells. Also provided are recombinant cells or plants which produce long-chain polyunsaturated fatty acids. Furthermore, the present invention relates to a group of new enzymes which possess desatorase or elongase activity that can be used in methods of synthesizing long-chain polyunsaturated fatty acids.
    Type: Application
    Filed: September 16, 2013
    Publication date: January 9, 2014
    Applicant: Commonwealth Scientific and Industrial Research Organisation
    Inventors: Surinder Pal Singh, Stanley Suresh Robert, Peter David Nichols, Susan Irene Ellis Blackburn, Xue-Rong Zhou, James Robertson Petrie, Allan Graham Green
  • Publication number: 20140011105
    Abstract: A method of shutting down operation of a fuel cell system is disclosed, comprising a fuel cell stack, the method comprising the sequential steps of: i) ceasing a supply of fuel to the fuel cell stack; ii) closing a shut-off valve on an exhaust line in fluid communication with a cathode system of the fuel cell system, the cathode system comprising a cathode fluid flow path passing through the fuel cell stack; iii) pressurizing the cathode system with an air compressor in fluid communication with a cathode air net port in the fuel cell stack; and iv) ejecting water from the cathode flow path.
    Type: Application
    Filed: September 9, 2013
    Publication date: January 9, 2014
    Applicant: Intelligent Energy Limited
    Inventors: Paul Adcock, Peter David Hood, Scott Baird
  • Publication number: 20140007868
    Abstract: An oropharyngeal airway for use during diagnostic and surgical procedures, comprising a body with a proximal and a distal end. The distal end is sized for insertion through a protective bite block disposed in a patient's mouth. Both sides of the distal end are tapered to a curved distal edge. A flange is transversely opposed at the proximal end, preventing the proximal end from moving through the protective bite block and into the patient's mouth. An elliptically-arched channel in the shape of a lingual contour extends from the proximal end to the distal end. The channel includes a pair of tapered upstanding walls that guide the passage of a surgical instrument through the space between them. The oropharyngeal airway can be constructed of recyclable or biodegradable materials and is compatible with protective bite blocks of all sizes.
    Type: Application
    Filed: July 6, 2012
    Publication date: January 9, 2014
    Inventors: Peter David Eaton, Lauren May Eaton
  • Publication number: 20130337481
    Abstract: The invention provides an assay method for determining a level of haptoglobin in a sample comprising the steps of: (i) mixing haemoglobin with the sample to be assayed so as to form a haptoglobin-haemoglobin complex with haptoglobin present in the sample; (ii) contacting the product of step (i) with reagents for generating hydrogen peroxide and one or more chromogens which undergo a spectroscopically detectable change when peroxidase activity is present, in the presence of a buffer, under conditions in which hydrogen peroxide is generated from said reagents and forms a substrate for the peroxidise activity of the haptoglobin-haemoglobin complex present, and wherein the pH of the buffer is within a range which is sufficiently low that the peroxidise activity of any uncomplexed haemoglobin is substantially suppressed but sufficiently high that hydrogen peroxide generation occurs; (iii) determining the peroxidase activity of the haptoglobin-haemoglobin complex by measuring the change in an optical property of th
    Type: Application
    Filed: December 19, 2011
    Publication date: December 19, 2013
    Applicant: REACTIVLAB LIMITED
    Inventors: Peter David Eckersall, Ellidh McCulloch, Stuart Docherty
  • Publication number: 20130330081
    Abstract: The path selection and wavelength assignment to a selected path are performed by mapping the wavelength reach to the demand distribution (agile reach) resulting in a 50-60% increase in the network reach. The network reach is further increased (about 2.2 times) when on-line measured performance data are used for path selection and wavelength assignment. The connections may be engineered/upgraded individually, by optimizing the parameters of the entire path or of a regenerator section of the respective path. The upgrades include changing the wavelength, adjusting the parameters of the regenerator section, controlling the launch powers, mapping a certain transmitter and/or receiver to the respective wavelength, selecting the wavelengths on a certain link so as to reduce cross-talk, increasing wavelength spacing, etc.
    Type: Application
    Filed: August 13, 2013
    Publication date: December 12, 2013
    Applicant: Alcatel Lucent
    Inventors: Alan Glen Solheim, Peter David Roorda, Kevan Peter Jones, Greg Peter Friesen