Patents by Inventor Clive Barnes
Clive Barnes 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: 6328496Abstract: A marking instrument, such as a pen, is disclosed. The marking instrument includes a marking tip carried at the end of a tubular member for conducting marking fluid to the marking tip. The marking tip includes a tubular rear end section of circular cross-section. The tubular member is elliptical in cross-section and is attached to the tubular rear end section of the marking tip at an angle to the longitudinal axis of the tubular member. The elliptical shape of the tubular member allows for a circular profile opening when the tubular member is cut at an angle to join the tubular rear end section of the marking tip. Because the complementary profiles are circular in shape at the connection plane, it is not necessary to rotationally orient the components when bringing them together to be joined.Type: GrantFiled: March 8, 2001Date of Patent: December 11, 2001Assignee: The Gillette CompanyInventors: Alan Robert Hill, Clive Barnes, Charles Christopher Packham, Mark Arthur Seddon
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Patent number: 6039493Abstract: A ball point pen has a hollow nib member (2) attached to the end of a cylindrical body (1) enclosing a ink reservoir (3), the forward end of the nib member being spaced from the axis (B) of the body and having a tip element (4) welded thereto so that the writing ball (6) incorporated in the tip is located on the same side of the axis (B) as the forward end of the nib member.Type: GrantFiled: February 22, 1999Date of Patent: March 21, 2000Assignee: The Gillette CompanyInventors: Mark Arthur Seddon, Clive Barnes
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Patent number: 5750956Abstract: Foils are manufactured by creating a pattern on a substrate and then thickening the patterned film. The foil may then be peeled away from the substrate and/or pattern. The patterning step may include use of a laser or use of a photoresist, and may include deposition of a further layer. The thickening step may be performed by electrodeposition or electroless methods. The foils produced may be employed for dry shavers, sieves or filters.Type: GrantFiled: January 10, 1995Date of Patent: May 12, 1998Assignee: Braun AktiengesellschaftInventors: Clive Barnes, Trevor John Crichton
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Patent number: 5645697Abstract: Apparatus for preventing contaminant build-up in beer supply lines including a coil supported on a former located coaxially about the beer line. A signal generator is connected to the coil to apply a signal of varying frequency to the coil to prevent bacterial growth on the inside of the line.Type: GrantFiled: March 23, 1995Date of Patent: July 8, 1997Inventors: David Leslie Phillip Middleton, David Brian Telfer, Clive Barnes
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Patent number: 4968392Abstract: The treatment of the external surfaces of condenser tubes, such as those used in power station condenser plants, with certain inorganic chemical compounds renders those surfaces or parts thereof sufficiently water-repellent so as to prevent the formation thereon, during operation of the condenser, of condensate films. Instead of continuous condensate films forming on the treated condenser tube surfaces during operation of the condenser, condensation is formed as discrete droplets of water which run down and drip off the tubes with the result that the condenser plant can work at higher levels of efficiency. Suitable chemical substances for use in the treatment of condenser tube surfaces include Cr VI anions, Cr.sup.3+ ions, and alkali metal tungstates, vanadates and molybdates.Type: GrantFiled: October 14, 1988Date of Patent: November 6, 1990Assignee: BNF Metals Technology CentreInventors: Susan Smith, Roger Francis, Clive Barnes
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Patent number: 4196063Abstract: An electrolyte solution and the method of using same for electrodeposition of black chromium on a substrate, said solution comprising water, trivalent chromium ions, ions of a metal selected from the group consisting of iron and cobalt, a weak complexing agent for the trivalent chromium ions, and phosphate ions. The preferred complexing agents are hypophosphite or formate.Type: GrantFiled: April 19, 1979Date of Patent: April 1, 1980Assignee: International Lead Zinc Research Organization, Inc.Inventors: Clive Barnes, John J. B. Ward
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Patent number: 4169022Abstract: A method of depositing a protective chromite conversion coating is described. The chromite coatings produced by the method contain no Cr.sup.VI. The electrolyte used in the method comprises Cr.sup.III ions in a concentration of not more than 1 molar and a weak complexing agent for Cr.sup.III ions. The electrolyte, preferably, also contains conductivity salts. The method involves using a cathode current density of not more than 2000 amps per square meter and a temperature of not more than 35.degree. C. for a period of not more than 3 minutes. The chromite conversion coatings can be improved by aging and can be subsequently painted or lacquered. The Cr.sup.III electrolytes used are much less corrosive than Cr.sup.VI electrolytes and thus the substrates which can be coated include materials which cannot readily be chromate coated because they are reactive towards Cr.sup.VI electrolytes.Type: GrantFiled: May 22, 1978Date of Patent: September 25, 1979Assignee: BNF Metals Technology CentreInventors: John J. B. Ward, Clive Barnes
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Patent number: 4159926Abstract: A nickel electroplating bath comprises in aqueous solution at a pH of from 4 to 7, nickel ions at a Molar concentration of at least 0.25, chloride ions at a Molar concentration of at least 0.25, and a weak complexant for the nickel selected from formate, acetate, citrate, glutamate, anions and lactones of sugar acids and anions and lactones of acids having the formula X(C.sub.n H.sub.2n)COOH where X is OH or NH.sub.2 and n is 1 to 5, preferably 1 to 2, present at a Molar concentration of from 0.5 to 4.0 times that of the nickel. These baths have good throwing power and can be operated at convenient temperatures and pH values and at lower nickel ion concentrations than hitherto.Type: GrantFiled: November 30, 1977Date of Patent: July 3, 1979Assignee: BNF Metals Technology CentreInventors: Clive Barnes, John J. B. Ward
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Patent number: 4159230Abstract: A method whereby a surface of chromium metal electrodeposited on a zinc substrate from a trivalent chromium electrolyte is treated by contacting the surface with an aqueous solution at a pH of from 5 to 12 and containing a dissolved metal salt of a weak acid which does not form a soluble complex with zinc. Preferred salts are carbonates, phosphates and silicates of an alkali metal, e.g. sodium or potassium. Also disclosed is the product of said process comprising an article having a zinc substrate, a microporous electrodeposited chromium coating from 0.025 to 2.5 microns in thickness on said substrate, and a water-insoluble basic salt of zinc within the micropores.Type: GrantFiled: March 1, 1978Date of Patent: June 26, 1979Assignee: International Lead Zinc Research Organization, Inc.Inventors: Clive Barnes, John J. B. Ward
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Patent number: 4157945Abstract: An electrolyte bath and a method for using such a bath comprising trivalent chromium ions dissolved in an aqueous solution containing sulphide. The bath may also contain a weak complexing agent such as hypophosphite or glycine. The electrolyte according to the invention permits the electrodeposition of chormium from electrolytes having low solids content without adversely affecting plating rates.Type: GrantFiled: December 27, 1977Date of Patent: June 12, 1979Assignee: International Lead Zinc Research Organization, Inc.Inventors: John J. B. Ward, Clive Barnes
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Patent number: 4137132Abstract: A method of producing chromium conversion coatings is described. The coatings are novel in that they are chromite i.e. Cr.sub.2 O.sub.3 coatings rather than the conventional chromate i.e. CrO.sub.3 coatings. The invention includes a novel electrolyte for depositing chromite layers. The electrolyte is an aqueous solution containing Cr.sup.III ions, a weak complexing agent for Cr.sup.III ions and a poison for the electrodeposition of chromium metal. The electrolyte preferably also contains conductivity salts and may include other additives such as fluoride ion and boric acid. Examples of poisons are Cr.sup.VI ions, peroxide, nitrate, polyamines, phosphates and formaldehyde. The chromite conversion coatings can be improved by aging and can be subsequently painted or lacquered. The electrolytes of the present invention are much less corrosive than Cr.sup.VI electrolytes and thus the substrates which can be coated include materials which cannot readily be chromate coated because they are reactive towards Cr.sup.Type: GrantFiled: May 31, 1977Date of Patent: January 30, 1979Assignee: BNF Metals Technology CentreInventors: John J. B. Ward, Clive Barnes
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Patent number: 4107004Abstract: An aqueous trivalent chromium plating bath having low temperature stability comprising trivalent chromium ions preferably in a concentration of at least 0.2 M, sulphate ions preferably in a concentration of at least 0.3 M, a weak complexing agent for the chromium ions in a concentration of at least 0.1 M, and fluoride ions in a concentration of at least 0.025 M. The bath preferably also contains chloride ions in a concentration of at least 0.1 M.Type: GrantFiled: November 21, 1977Date of Patent: August 15, 1978Assignee: International Lead Zinc Research Organization, Inc.Inventors: John Joseph Bernard Ward, Clive Barnes