Patents by Inventor George Henry Platt Brown
George Henry Platt Brown 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: 7397990Abstract: A cable (302) has (8) fibers (304) are encapsulated by a UV curable layer (306) having a diameter of approximately (1010) microns, and (16) outer fibers (316) arranged in a circular formation around the inner fibers (304). The optical fibers (304) are held in position by means of the UV curable layer (306) so that the UV curable material of the layer (306) does not penetrate into the gaps between the optical fibers (304) and the outermost optical fibers (304) are restrained by the layer from moving axially. It is found that such an arrangement provides surprisingly favorable bending properties, making the cable particularly suitable for installation in a tube by means of blowing.Type: GrantFiled: June 26, 2003Date of Patent: July 8, 2008Assignee: Emtelle (UK) LimitedInventors: George Henry Platt Brown, David John Stockton, Kevin Thomas Cockburn, Greig Iain McIlwraith
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Publication number: 20080116599Abstract: A method of manufacturing a tube (8) is disclosed. The method comprises forming a tube (8) by extrusion, causing a body (24) to move longitudinally relative to the internal bore of the tube (8), and determining whether the body (24) ceases to move relative to the tube (8) At least part of said extrusion step and said step of causing a body (24) to move relative to the internal bore of the tube (8) are carried out simultaneously, and the body (24) is caused to move relative to the internal bore of the tube (8) by means of at least one first tensile element (22) attached to said body (24).Type: ApplicationFiled: May 26, 2005Publication date: May 22, 2008Applicant: EMTELLE UK LIMITEDInventor: George Henry Platt Brown
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Patent number: 7136556Abstract: A fibre optic cable includes a core of primary coated optical fibres embedded in an inner layer of acrylate material, having sufficient tensile strength when cured to lock at least the outermost fibres in place and still allow the fibres to be easily broken out of the assembly for termination and splicing purposes. The hardness of the acrylate layer is such that at least the outermost fibres of the bundle are restricted from moving axially relative to the inner layer. The inner layer is then surrounded by a loose thin jacket formed from a mixture of high density polyethylene having a Shore hardness greater than or equal to 60 and a generally uniformly distributed slip agent, including a polyether modified poly (dimethylsiloxane) material such as polyether modified hydroxy functional poly (dimethylsiloxane) material. The mixture from which the outer layer is formed is compacted by means of heat and pressure.Type: GrantFiled: June 26, 2003Date of Patent: November 14, 2006Assignee: Emtelle UK LimitedInventors: George Henry Platt Brown, David John Stockton, Greig Iain McIlwraith
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Patent number: 6778742Abstract: An optical fibre cable (1) for installation in a duct (51) by means of fluid flow is described. The cable (1) has a signal transmitting portion comprising a plurality of elongate, flexible optical fibres, surrounded by a braided covering (10) formed from textile yarns (9). The apparatus (50) for installing the cable includes an air compressor (52) for supplying a blowing head (53) with a conditioned air supply substantially free of static electricity or moisture. The blowing head (53) includes drive wheels (not shown), the speed of rotation of which (and hence the speed of installation of the fibre cable (1), (101) is adjusted by means of s control unit (54) powered by power supply (55). The fibre cable (1), (101) is fed from a fibre pan (56) over guide (57) to the blowing head (53), which is fed with an air supply from compressor (52) which is regulated by dispenser (58).Type: GrantFiled: February 10, 2003Date of Patent: August 17, 2004Assignee: Emtelle UK LimitedInventors: George Henry Platt Brown, David John Stockton, Jonathan Paul Taylor
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Patent number: 6766090Abstract: An optical fibre cable (1) for installation in a duct by means of fluid flow is described. The cable (1) has a signal transmitting portion comprising a plurality of elongate, flexible optical fibres, surrounded by a braided covering (10) formed from textile yarns (9).Type: GrantFiled: January 13, 2003Date of Patent: July 20, 2004Assignee: Emtelle UK LimitedInventor: George Henry Platt Brown
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Publication number: 20030156803Abstract: An optical fibre cable (1) for installation in a duct (51) by means of fluid flow is described. The cable (1) has a signal transmitting portion comprising a plurality of elongate, flexible optical fibres, surrounded by a braided covering (10) formed from textile yarns (9). The apparatus (50) for installing the cable includes an air compressor (52) for supplying a blowing head (53) with a conditioned air supply substantially free of static electricity or moisture. The blowing head (53) includes drive wheels (not shown), the speed of rotation of which (and hence the speed of installation of the fibre cable (1), (101) is adjusted by means of s control unit (54) powered by power supply (55). The fibre cable (1), (101) is fed from a fibre pan (56) over guide (57) to the blowing head (53), which is fed with an air supply from compressor (52) which is regulated by dispenser (58).Type: ApplicationFiled: February 10, 2003Publication date: August 21, 2003Inventors: George Henry Platt Brown, David John Stockton, Jonathan Paul Taylor
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Publication number: 20030095762Abstract: An optical fibre cable (1) for installation in a duct by means of fluid flow is described. The cable (1) has a signal transmitting portion comprising a plurality of elongate, flexible optical fibres, surrounded by a braided covering (10) formed from textile yarns (9).Type: ApplicationFiled: January 13, 2003Publication date: May 22, 2003Inventor: George Henry Platt Brown
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Patent number: 6409155Abstract: A method of inserting an unreinforced fiber optic member into a duct is disclosed. An elongate, flexible pull cord is inserted into the duct and is attached adjacent its rearward end to the fiber optic member adjacent a forward end thereof. The forward end of the fiber optic member is then introduced into the duct, and fluid such as air is caused to flow along the duct to cause the pull cord and fiber optic member to move into the duct.Type: GrantFiled: June 27, 2000Date of Patent: June 25, 2002Assignee: Emtelle UK LimitedInventors: George Henry Platt Brown, Steven King
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Patent number: 6385378Abstract: A method for installing a lightweight optical fiber unit, preferably less than approximately 10 g/m, into a tube, by pulling the optical fiber unit through the tube using a pulling member. The pulling member may be attached to the optical fiber unit by a braided sheath. Alternatively, the pulling member itself may be a braided tube.Type: GrantFiled: December 7, 1999Date of Patent: May 7, 2002Assignee: Emtelle UK LimitedInventors: George Henry Platt Brown, John Tansey
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Patent number: 6076863Abstract: A coupling assembly (1) for connecting first and second multi-duct conduits in aligned end to end relationship is disclosed. The assembly (1) includes a pair of end caps (4), each of which has apertures for receiving a respective duct of one of the first and second conduits, and a mounting portion arranged adjacent each aperture. A plurality of open ended tubular members (2), each of which has an internal bore for receiving a duct of the first and second conduits, are arranged parallel to each other between the end caps (4). The end caps (4) are mounted via the mounting portions to the end of the tubular members (2) such that the apertures of the end caps (4) are aligned with respective bores of the tubular members.Type: GrantFiled: March 25, 1998Date of Patent: June 20, 2000Assignee: Mainetti Technology LimitedInventors: George Henry Platt Brown, Bernard Gajos
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Patent number: 6055350Abstract: A method for installing a lightweight optical fiber unit, preferably less than approximately 10 g/m, into a tube, by pulling the optical fiber unit through the tube using a pulling member. The pulling member may be attached to the optical fiber unit by a braided sheath. Alternatively, the pulling member itself may be a braided tube.Type: GrantFiled: April 7, 1998Date of Patent: April 25, 2000Assignees: Mainetti Technology Limited, BICC Public Limited Company, Corning LimitedInventors: George Henry Platt Brown, John Tansey
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Patent number: RE41388Abstract: A fibre optic cable includes a core of primary coated optical fibres embedded in an inner layer of acrylate material, having sufficient tensile strength when cured to lock at least the outermost fibres in place and still allow the fibres to be easily broken out of the assembly for termination and splicing purposes. The hardness of the acrylate layer is such that at least the outermost fibres of the bundle are restricted from moving axially relative to the inner layer. The inner layer is then surrounded by a loose thin jacket formed from a mixture of high density polyethylene having a Shore hardness greater than or equal to 60 and a generally uniformly distributed slip agent, including a polyether modified poly (dimethylsiloxane) material such as polyether modified hydroxy functional poly (dimethylsiloxane) material. The mixture from which the outer layer is formed is compacted by means of heat and pressure.Type: GrantFiled: June 26, 2003Date of Patent: June 22, 2010Assignee: Emtelle UK LimitedInventors: George Henry Platt Brown, David John Stockton, Greig Iain McIlwraith