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Dunleavy

Michael Dunleavy, Bristol GB

Patent application numberDescriptionPublished
20090050812Detection of Ionising Radiation - A detector for detecting ionising radiation comprises a scintillator 02-26-2009
20090121121Fibre Structure for the Identification of Defects In the Structure - This invention is concerned with means for detecting potential fracturing, such as stress fractures, or damage to, a fibre based structure, by incorporating either hollow fibres containing coloured fluids, or solid fibres, or hollow fibres containing coloured fluids or fluids, which are capable of changing their visual appearance when exposed to external forces, and/or by incorporating fibres within the structure which can change a property such as electrical resistance, capacitance or inductance so that there is an indication whenever and wherever and the extent when a fracture occurs. Where coloured fluids are used, detection is by leakage of the fluid around the fracture. Where colour changing fluids are employed, detection is by observation of change of colour of the fluid. Different fluids can be used for different levels in the strata of tubes in the structure and where these are embedded within the structure, they can be observed where the fibres emanate from the body of the structure. Where fibres are incorporated into the structure that rely on electrical properties to sense a fracture, these fibres may be solid and formed from electrically conductive material and may be coated with such material. Alternatively, though used together with solid fibres, hollow fibres may be used where those hollow fibres contain and/or are coated with electrically conductive material. Appropriate detector means are associated with these fibres to detect the occurrence of a fracture.05-14-2009
20090208684Self-Reparing Structure - This invention relates to a structure which comprises hollow and solid fibre material embedded in a resin matrix where a repair facility is provided for repairing fractures in the fibres and in the resin matrix by the use of curable two-part adhesive compositions in some of the fibres of the structure. Dedicated hollow fibres carry separate parts of the adhesive compositions under pressure so that in the event of fracture of any fibres, the component parts of the adhesive composition can combine and cure in situ to fill and “heal” the fracture. The invention has particular but not exclusive application to in “flight” repair of aircraft components which are formed by such structures, and can also be used in the manufacture of fabric materials.08-20-2009
20100079842ELECTRO-OPTIC WINDOWS - An electro-optic window is made of a material substantially transparent to infra-red radiation and is treated to have reduced RF transmission characteristics by the provision of carbon nanotubes within the window or on at least one, surface thereof.04-01-2010
20100104839HIGH-DIELECTRIC MATERIAL - A bulk dielectric material can include a solid composite material having a solid matrix material and a plurality of filler elements distributed within the matrix material. The bulk dielectric material can have, at a frequency of greater than 1 MHz, (i) a permittivity with a real part of magnitude greater than 10 and an imaginary part of magnitude less than 3, and (ii) an electrical breakdown strength greater than 5 kV/mm and can have a minimum dimension greater than 2 mm.04-29-2010
20110107843ELECTRICAL CIRCUIT ASSEMBLIES AND STRUCTURAL COMPONENTS INCORPORATING SAME - A structural health monitoring arrangement includes a component formed of fibre reinforced composite material with a plurality of electrical conducting fibres intrinsic to the composite defining electrical paths that run through the composite. The paths act as sensing paths running through the material and a detector watches for changes in electrical property indicative of a structural event. The paths may be configured as an open or a closed node grid whose electrical continuity is monitored directly or indirectly. Alternatively they may be fibres having a piezoresistive property and the changes in resistance may be monitored.05-12-2011
20110111266ELECTRICAL POWER SOURCES - An electrical power source including at least one hollow fibre incorporated in a material structure, wherein the at least one hollow fibre forms part of an electric circuit capable of storing or generating electrical power. In this way power sources may be provided as an integral part of a fibre composite structure or fabric.05-12-2011
20110120750ELECTRICAL CIRCUIT ASSEMBLIES AND STRUCTURAL COMPONENTS INCORPORATING SAME - Composite structural components are disclosed that include electrically conducting fibres providing multiple signal or paths to electrical components disposed on or adjacent the material. The signal paths may therefore be embedded in the structural component as an intrinsic reinforcing element. Also disclosed are materials for making up the structure and fabrics and methods for the production thereof.05-26-2011
20110122591HYBRID FABRIC MATERIALS, AND STRUCTURAL COMPONENTS INCORPORATING SAME - Composite structural components are disclosed that include electrically conducting fibres providing signal power paths to electrical components disposed on or adjacent the material. The signal paths may therefore be embedded in the structural component. Also disclosed is a flexible or drapable fabric containing electrically conducting fibres for similar purposes, and materials for making up said structure and fabrics and methods for the production thereof.05-26-2011
20110272082Fibre Materials - The invention relates to the use of fibre composites and specifically to the use of adhesive compositions within hollow fibres of the composites to provide a repair function within the composite in the event of damage to of the fibres. The invention relates to the manner in which one-part adhesive compositions can be delivered to a point of fracture. The invention is more specifically concerned with the use of pressure to deliver adhesive composition to the point of damage.11-10-2011
20120061574DETECTION OF IONISING RADIATION - A detector for detecting ionising radiation comprises a scintillator 03-15-2012
20120061575DETECTION OF IONISING RADIATION - A detector for detecting ionising radiation comprises a scintillator 03-15-2012

Patent applications by Michael Dunleavy, Bristol GB

Michael Dunleavy, South Gloucestershire GB

Patent application numberDescriptionPublished
20110305825ELECTROLESS METAL DEPOSITION FOR MICRON SCALE STRUCTURES - A method for electroless metal deposition on a surface in a finely dimensioned space (e.g. the bore of a hollow fibre) includes introducing into the space an electroless plating solution that has a nil or relatively low plating rate at normal room temperature, and thereafter heating the structure to an elevated temperature for a period sufficient to cause metal to plate on the wall surface. The introducing and heating may be repeated as necessary or desired to build up a specified thickness.12-15-2011

Pat Dunleavy, Palaiseau FR

Patent application numberDescriptionPublished
20110094204COUPLING SYSTEM CONNECTING AN INTERNAL STRUCTURE AND AN EXTERNAL STUCTURE OF A JET ENGINE NACELLE - The present invention relates to a turbofan jet engine nacelle intended to be attached to a structure of an aircraft by an engine strut and comprising a forward air inlet section, a mid-section intended to surround a jet engine fan, and an aft section having an internal structure intended to serve as a casing for an aft portion of the jet engine and, together with an external structure (04-28-2011

Patrick Dunleavy, Palaiseau FR

Patent application numberDescriptionPublished
20100096067METHOD OF MAKING COMPOSITE MATERIAL STIFFENERS - The invention relates to a method of making at least one stiffener element, the method comprising steps of: 04-22-2010
20100291339MECHANICAL COMPONENT COMPRISING AN INSERT MADE OF COMPOSITE - The invention relates to a method of manufacturing a mechanical component comprising at least one insert made of metal matrix composite, within which matrix ceramic fibers extend, the composite insert being obtained from a plurality of coated filaments each comprising a ceramic fiber coated with a metal sheath, the method involving manufacturing at least one insert with a step of winding a bonded lap or bundle of coated filaments about a component of revolution. According to the invention, at least some of the winding is done in a rectilinear direction.11-18-2010
201003235743D COMPOSITE FABRIC - A fabric includes a base pattern having at least twenty-eight weft fibers disposed in a staggered configuration and forming eight columns that comprise in alteration four weft fibers and three weft fibers, the weft fibers extending in seven layers. The fabric further includes at least twelve warp fibers disposed in at least four offset parallel planes, each of the planes containing at least three parallel warp fibers that follow paths that are distinct from one another.12-23-2010
20110099791METHOD FOR PRODUCING A METALLIC PART COMPRISING INNER REINFORCEMENTS CONSISTING OF CERAMIC FIBERS - A method for producing a metallic part including inner reinforcements of ceramic fibers, according to which: at least one recess for an insert is machined in a metallic body having an upper surface; at least one insert of ceramic fibers in a metallic matrix is arranged in the recess; the insert is covered with a cover; the gap around the insert is placed under a vacuum and hermetically sealed; the entire metallic body with the cover is treated by hot isostatic compaction; and the treated assembly is machined to produce the part. The insert is rectilinear, and the recess for the insert in the metallic body forms a rectilinear groove, the cover being dimensioned so as to be able to placed on the insert in the recess after having been shrunk by cooling and to establish a tight fit in the groove by dilation such as to close the space.05-05-2011
20110107579PROCESS FOR MANUFACTURING A METAL PART REINFORCED WITH CERAMIC FIBRES - The invention relates to a process for manufacturing a metal part reinforced with ceramic fibres, in which: 05-12-2011
20110129639PROCESS FOR MANUFACTURING A STRUCTURAL PART MADE OF AN ORGANIC MATRIX COMPOSITE AND PART OBTAINED - A process for manufacturing a structural part made of an organic matrix composite including: production of a fibrous structure, forming a preform by braiding rovings of a fibrous material on a mandrel that includes a reinforcement in its axial extension, impregnation of the preform with an organic resin; and curing of this resin, the reinforcement, forming the cover, having a bore with an axis perpendicular to the axis for housing a connecting member. Barbs, some of which are projecting, are incorporated into the reinforcement over at least part of the surface of which lying on either side of the bore, the braiding being carried out around the barbs so that the rovings at least partly criss-cross around the barbs.06-02-2011
20110143089MECHANICAL COMPONENT COMPRISING AN INSERT MADE OF COMPOSITE - A method of manufacturing a mechanical component, and winding device to implementing the method. The component includes at least one insert of metal matrix composite, within which matrix ceramic fibers extend, the composite insert obtained from a plurality of coated filaments each including a ceramic fiber coated with a metal sheath. The method manufactures an insert preform by winding a bonded lap or bundle of coated filaments about a cylindrical component. At least some of the winding is performed in at least one rectilinear direction. The method further inserts the insert preform in a first container; performs hot isostatic compaction of the first container; and machines the first container to form a rectilinear insert.06-16-2011
20110308702METHOD OF CONNECTING A COMPOSITE MATERIAL STRUCTURAL ELEMENT TO A TUBE - The invention relates to a method of fabricating a structural part comprising a tubular portion from which there projects a structural element made of composite material, the method comprising the steps of: 12-22-2011
20110315744METHOD FOR MAKING A METAL CONNECTING ROD REINFORCED WITH LONG FIBERS - The invention relates to a method of fabricating a connecting rod, the method including: fabricating a body (12-29-2011

Patent applications by Patrick Dunleavy, Palaiseau FR

Stuart Dunleavy, Rancho Santa Margarita, CA US

Patent application numberDescriptionPublished
20120066726Video Display Units for Aircraft In-Flight Entertainment Systems and Methods of Adapting the Same - Some embodiments of the present invention provide video display units including at least one video display monitor at least one sheet of polarized material configured to extend on a viewing surface of the at least one video display monitor. The video display unit is adapted for use in an aircraft in-flight entertainment system. Some video display units include a plurality of video display monitors. Related methods are also provided.03-15-2012