Patents Assigned to Cookson Group PLC
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Patent number: 6571956Abstract: A kit for an ear piercing cartridge includes a container having preferably a plurality of chambers or cells therein, in each of which is disposed a retaining assembly adapted to releasably receive an ear piercing cartridge. A portion of the retaining assembly is removable so that an ear piercing cartridge having different dimensions can be removably mounted in the same cell. The cassette has double sidewall construction to protect the cells which are hermetically sealed with a material sheet displaceable to access a particular one of the cells.Type: GrantFiled: December 28, 2000Date of Patent: June 3, 2003Assignee: Cookson Group PLCInventor: Samuel J. Mann
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Publication number: 20020084207Abstract: A kit for an ear piercing cartridge includes a container having preferably a plurality of chambers or cells therein, in each of which is disposed a retaining assembly adapted to releasably receive an ear piercing cartridge. A portion of the retaining assembly is removable so that an ear piercing cartridge having different dimensions can be removably mounted in the same cell. The cassette has double sidewall construction to protect the cells which are hermetically sealed with a material sheet displaceable to access a particular one of the cells.Type: ApplicationFiled: December 28, 2000Publication date: July 4, 2002Applicant: COOKSON GROUP PLCInventor: Samuel J. Mann
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Patent number: 6158491Abstract: A process for the corrosion protection of copper or copper alloy which process comprises contacting the surface with an aqueous solution of at least one compound of general formula (I), wherein X is N, Y is CR and Z is N, or X is N, Y is N and Z is N or CR or X is CR, Y is N and Z is N, where R is a hydrogen atom or R.sup.1, and R.sup.1 is an alkyl, aryl, aralkyl, halogen, trihalomethyl, amino, heterocyclic, NHR.sup.2, NR.sup.3 R.sup.4, CN, CO.sub.2 H, CO.sub.2 R.sup.5, OH or OR.sup.6 group, where each of R.sup.2 to R.sup.6 independently represents an alkyl, aryl, or aralkyl group.Type: GrantFiled: August 28, 1997Date of Patent: December 12, 2000Assignee: Cookson Group PLCInventors: John Reynolds, Andrew McIntosh Soutar, Keith William Peter White, Anthony Williams
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Patent number: 6099545Abstract: A disposable ear piercing device includes a first disposable cartridge containing an earring head of a stud or straight post configuration. An inner slidable capsule and a slidable spacer within the capsule hold the decorative earring head and post within the cartridge. A second clutch cartridge spaced from the slidable capsule holds a closed end clutch. A spring biased plunger controlled by a trigger release actuates the slidable spacer and capsule within the first cartridge to project the earring head through the earlobe in an open saddle area. The clutch at the opposing saddle area receives and engages the earring stud or post. Release mechanisms on the capsule and clutch cartridge permit removal of the earlobe with the earring away from the instrument.Type: GrantFiled: November 22, 1999Date of Patent: August 8, 2000Assignee: Cookson Group PLCInventors: Samuel J. Mann, Charles Kowalski
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Patent number: 6048355Abstract: A disposable Ear Piercing device consists of an outer cartridge which is inserted into the piercing instrument. The outer cartridge contains a slideable inner capsule retaining an earring with a slideable spacer therein. By applying force to the instrument handle, an internal driving rod advances the inner capsule and slideable spacer forward, forcing the earring post through the ear and into a closed bottom retaining clutch. At such time, the earring is released from the inner capsule by spring arms which are integral with the spacer, opening hinged doors or door on the inner capsule, clearing the outer cartridge and allowing the earring and clutch to be released from the capsule onto the ear. The design of such inner capsule and spacer allows unsymmetrical decorative heads of varying thickness to be utilized.Type: GrantFiled: April 9, 1999Date of Patent: April 11, 2000Assignee: Cookson Group PLCInventors: Samuel J. Mann, Charles Kowalski
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Patent number: 5858901Abstract: Barium titanate temperature stable dielectric compositions are disclosed containing magnesium oxide, silicon dioxide, germanium oxide and optionally an oxide or carbonate of barium, calcium or strontium which can be used to produce multilayer ceramic capacitors with nickel or nickel alloy electrode that have a variation of capacitance with temperature of less than .+-.10% over the range -55.degree. C. to +125.degree. C. compared with the value of the capacitance at 25.degree. C., or to produce multilayer ceramic capacitors with noble metal inner electrodes that have a variation of capacitance with temperature of less than .+-.15% over the range 55.degree. to +125.degree. C. compared with the value at 25.degree. C., and which does not contain any second phases after sintering.Type: GrantFiled: February 21, 1996Date of Patent: January 12, 1999Assignee: Cookson Group plcInventors: Mike Ssu Hai Chu, John Bultitude, Christopher Hood, Kay Louise Nimmo, Michael Rand
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Patent number: 5776555Abstract: A process for the metallization of a phosphor screen which process comprises the steps of: i)applying to a process screen a coating composition comprising a poly(acrylate) or poky(methacrylate) dissolved in an acrylate or methacrylate monomer, the said composition including an initiator therein; ii) subjecting the coated to irradiation in order to form a polymeric film coating, iii)depositing a layer of metal upon the coated screen to form a composite; and iv) heating the composite to a temperature above the decomposition temperature of the film coating in order to decompose and/or volatilize the polymeric film coating.Type: GrantFiled: May 29, 1997Date of Patent: July 7, 1998Assignee: Cookson Group PLCInventors: Alison Mary Wagland, Karen Savill, Warren Li, Jason Robert Brewer, Brian John Collister
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Patent number: 5656143Abstract: A solid electrolyte sensor to measuring the amount of trace elements, such as sulfur, in molten metals such as steel is provided wherein zirconia toughened strontium .beta.-alumina is used as the solid electrolyte. The resulting sensor is highly resistant to thermal shock, and is suitable for use with molten metals at temperatures of 1350.degree. C. or higher.Type: GrantFiled: September 21, 1995Date of Patent: August 12, 1997Assignee: Cookson Group PLCInventors: Mark Andrew Swetnam, Lyn Holt, Stefan Ryszard Witek
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Patent number: 5412062Abstract: Thermally depolymerizable polyoxalate and polymalonate polymers which contain hydrocarbon groups having from 6 to 30 carbon atoms and a tertiary carbon atom attached to at least one of the bridging oxygen atoms in the structure are usable as binders for powdered glass ceramic or metallic materials, and as rheological control agents in paste formulations.Type: GrantFiled: May 19, 1994Date of Patent: May 2, 1995Assignee: Cookson Group plcInventors: Gerald A. Power, Alison M. Wagland, Andrew C. Mackie
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Patent number: 5382865Abstract: A composite multilayer ceramic structure which comprises in a single device a plurality of layers of an electrostrictive dielectric material separated by a plurality of electrode layers in which a first portion is adapted to operate as an electrostrictive actuator and a second portion, which is adjacent to the first portion and which is not inherently piezoelectric, is adapted to operate in the same way as a piezoelectric sensor.Type: GrantFiled: March 26, 1993Date of Patent: January 17, 1995Assignee: Cookson Group PLCInventors: Steven J. Butcher, James D. Hobby, David H. M. Kings
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Patent number: 5382299Abstract: A soldering flux composition includes an aqueous solution containing as component (A) a compound selected from (i) hydrohalides and hydrophosphates of guanidine and substituted guanidines, (ii) hydrohalides and hydrophosphates of a five-membered nitrogen containing heterocyclic amine of the formulaC.sub.x N.sub.y H.sub.3in which x is 1 or 2 and y is 4 or 5, and mixtures of (i) and (ii) and as component (B) at least one compound selected from hydrohalides and hydrophosphates of aliphatic amines selected from aliphatic monoamines of formula CH.sub.3 (CH.sub.2).sub.n NR.sub.2 and aliphatic diamines of formula R.sub.2 N(CH.sub.2).sub.m NR.sub.2 in which n is 0 to 10, m is 5 to 10 and R is hydrogen, methyl, ethyl, propyl or butyl, the components (A) and (B) being present in the relative proportions of 25 to 100% by weight of (A) and 75 to 0% of (B).Type: GrantFiled: January 28, 1994Date of Patent: January 17, 1995Assignee: Cookson Group PLCInventors: Dosten Baluch, Anthony E. Ingham
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Patent number: 5350440Abstract: A furnace (1) has a main holding (2) and a charging well (4) into which molten metal from the holding portion is circulated by means of an electromagnetic pump (7). Metal enters the well as a tangential flow and a stationary turbulator (10) is located in the path of the flow so as to upwardly and transversely deflect the flow. Resulting turbulence within the well enhances the rate of assimilation of solids into the melt without resulting in excessive oxidation. The method is suitable for melting aluminium swarf.Type: GrantFiled: August 16, 1993Date of Patent: September 27, 1994Assignee: Cookson Group PLCInventors: Anil Katyal, Warwick N. Brown, Roger Howitt
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Patent number: 5308803Abstract: A glass composition which is essentially free from lead and cadium comprises, in mole percent, SiO.sub.2 :35 to 75%, Bi.sub.2 O3:0.1 to 15%, Al.sub.2 O.sub.3 :0.1 to 10%, B.sub.2 O.sub.3 :1 to 30%, at least one of Li.sub.2 O, Na.sub.2 O, K.sub.2 O:5 to 30%, ZrO.sub.2 :0.1 to 10%, and certain other optional ingredients, with the proviso that BaO and ZnO are not contained in an amount of more than 2 mole percent. These glass compositions can be used as fluxes for mixing with pigments to provide compositions for the decoration of ceramic materials and/or glass.Type: GrantFiled: June 10, 1992Date of Patent: May 3, 1994Assignee: Cookson Group PLCInventors: John F. Clifford, Ivan Wozniak, Peter J. Smith
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Patent number: 5304516Abstract: Glaze composition comprises 45 to 75% of SioO.sub.2, 0.1 to below 5% of Bi.sub.2 O.sub.3, 0.1 to 20% of Al.sub.2 O.sub.3 to 20% of B.sub.2 O.sub.3, at least one of CaO, MgO, SrO, BaO or Zno in an amount of 2 to 22%, at least one of Li.sub.2 O, Na.sub.2 O, K.sub.2 O in an amount of 1 to 10%, at least one of La.sub.2 O.sub.3, MoO.sub.3 or WO.sub.3 in an amount of 0.1 to 10% and certain other optional ingredients, all percentages being percentages by weight based on the total weight of the glaze composition, the glaze composition having a firing temperature of 950.degree. to 1250.degree. C., and having a coefficient of thermal expansion of 50 to 100.times.10.sup.-7 /.degree.C.Type: GrantFiled: April 16, 1992Date of Patent: April 19, 1994Assignee: Cookson Group PLCInventor: John F. Clifford
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Patent number: 5244848Abstract: Glaze composition for use on bone china and fine china which is essentially free from lead and cadium comprises, by weight, SiO.sub.2 : 35 to 60%, Bi.sub.2 O.sub.3 : 5 to 45%, Al.sub.2 O.sub.3 :5 to 20%, B.sub.2 O.sub.3 : 1 to 15%, at least one of CaO, MgO, SrO or BaO: 2 to 20%, at least one of Li.sub.2 O, Na.sub.2 O, K.sub.2 O: 1 to 10%, and certain other optional ingredients, with the proviso that BaO is not contained in an amount of more than 2% by weight.Type: GrantFiled: January 13, 1993Date of Patent: September 14, 1993Assignee: Cookson Group PLCInventors: John F. Clifford, Ivan Wozniak
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Patent number: 5225110Abstract: Material which is coated with a coating of an inherently conductive polymeric material. Suitable conductive polymeric materials include polypyrrole, substituted polypyrrole, polyaniline and substituted polyanilines.The coated powdery or granular metallic material may be used as an EMI and/or RFI shielding material.Type: GrantFiled: June 8, 1990Date of Patent: July 6, 1993Assignee: Cookson Group plcInventor: Poopathy Kathirgamanathan
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Patent number: 5223033Abstract: In a paste for use in the electronics industry which comprises:i) a non aqueous vehicle; andii) a particulate filler material, the improvement which comprises the vehicle being a stable emulsion of at least two immiscible organic liquids of at least 50% by volume disperse phase, one of which liquids is selected from the group consisting of a polar solvent and a mixture of polar solvents, and the other of which liquids is selected from the group consisting of an aliphatic hydrocarbon and a mixture of aliphatic hydrocarbons and the paste, when heated to remove the vehicle therefrom yields less than 3.0% by weight of organic residues based on the weight of the paste.Type: GrantFiled: April 27, 1992Date of Patent: June 29, 1993Assignee: Cookson Group PLCInventors: Charles E. King, Andrew C. Mackie, Geoffrey A. Paterson
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Patent number: D442689Type: GrantFiled: March 20, 2000Date of Patent: May 22, 2001Assignee: Cookson Group PLCInventor: Samuel J. Mann
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Patent number: D448154Type: GrantFiled: April 18, 2000Date of Patent: September 25, 2001Assignee: Cookson Group PLCInventor: Samuel J. Mann
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Patent number: D450383Type: GrantFiled: April 18, 2000Date of Patent: November 13, 2001Assignee: Cookson Group PLCInventor: Samuel J. Mann