With Amalgam Patents (Class 313/490)
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Patent number: 11183380Abstract: A germicidal UV amalgam lamp with an elongated tubular lamp body and at least two filaments located on opposite ends of the lamp body. The lamp body is hermetically sealed with a pinch-sealed portion at both opposite ends, confining a gas volume in which a gas discharge can be produced along a discharge path between the filaments. Each filament has two electrical connectors, each including an internal portion connected to the filament and pinch-sealed into the lamp body. Each connector also includes an external portion located outside the lamp body for electrical connection of the lamp to a controlled power supply. The pinch-sealed portion bears a socket with an electrical temperature sensor and at least two electrical connections mounted to the socket. The at least two electrical connections of the temperature sensor are connected in parallel to the electrical connectors of the filament.Type: GrantFiled: January 24, 2019Date of Patent: November 23, 2021Inventors: Dirk Riepe, Uwe Kanigowski, Jan Boris Loesenbeck, Sven Kaemmerer
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Patent number: 10593536Abstract: An ultraviolet mercury low-pressure amalgam lamp includes a tube having a first end and a second end, a first electrode placed in the first end of the tube, and a second electrode placed in the second end of the tube, whereby when the lamp is energized a discharge path is formed between the first and second electrodes. At least one amalgam deposit is adjacent to one of the first and second electrodes out of the discharge path between the first and second electrodes. The tube has at least one constriction, wherein the at least one amalgam deposit is placed behind the constriction with respect to the discharge path such that the at least one amalgam deposit is protected by the constriction from the heat emitted by the electrodes.Type: GrantFiled: July 7, 2017Date of Patent: March 17, 2020Assignee: XYLEM IP MANAGEMENT S.À R.L.Inventors: Andre Wojciechowski, Michael Lang, Uwe Kanigowski
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Patent number: 10529551Abstract: An RF fluorescent lamp, comprising a bulbous vitreous portion of the RF fluorescent lamp comprising a vitreous envelope filled with a working gas mixture, a power coupler to induce an alternating electric field within the vitreous envelope, an electronic ballast, and a mercury amalgam accommodating structure mounted within the lamp envelope and adapted to absorb power from the electric field to rapidly heat and vaporize an amalgam of mercury to rapidly illuminate the lamp envelope during a turn-on phase of the RF fluorescent lamp, wherein the structure is comprised of a substrate material coated with a mixture of indium and gold.Type: GrantFiled: August 8, 2017Date of Patent: January 7, 2020Assignee: Lucidity Lights, Inc.Inventors: Harris Miller, Tenzin Wangjor Nanchung, John R. Goscha, Felix I. Alexandrov
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Patent number: 9875887Abstract: Electrodeless high intensity discharge (HID) lamps have the promise of higher reliability and higher efficiency than traditional electroded high intensity discharge lamps. However, most electrodeless HIDs operate in the frequency range of around 400 MHz or higher resulting in expensive, inefficient RF drivers that reduce the overall efficacy of the lamp. Operating the lamp at lower frequencies results in substantial increase in the physical dimensions of the resonators used in traditional electrodeless HIDs. In this invention a novel wave-launcher technology is used allow the lamp housing's operating frequency to be independent of the physical dimensions of the lamp housing. This provides an avenue to increase the conversion efficiency of the RF driver and the efficacy of the lamp system.Type: GrantFiled: March 29, 2017Date of Patent: January 23, 2018Assignee: SPL INDUSTRIES USA, INC.Inventors: Timothy J. Brockett, Gregg A. Hollingsworth, Mehran Matloubian
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Patent number: 9659762Abstract: Energy-saving lamps contain a gas filling of mercury vapor and argon in a gas discharge bulb. Amalgam balls are used for filling the gas discharge bulb with mercury. Novel coated balls whose operating life in the case of automatic metered introduction is increased by coating of the balls with an alloy powder and conglutination of the amalgam balls during storage and processing is prevented are proposed.Type: GrantFiled: January 19, 2016Date of Patent: May 23, 2017Assignee: UMICORE AG & CO. KGInventors: Olivier Hutin, Hans Martin Ringelstein
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Patent number: 9640380Abstract: Electrodeless high intensity discharge (HID) lamps have the promise of higher reliability and higher efficiency than traditional electroded high intensity discharge lamps. However, most electrodeless HIDs operate in the frequency range of around 400 MHz or higher resulting in expensive, inefficient RF drivers that reduce the overall efficacy of the lamp. Operating the lamp at lower frequencies results in substantial increase in the physical dimensions of the resonators used in traditional electrodeless HIDs. In this invention a novel wave-launcher technology is used allow the lamp housing's operating frequency to be independent of the physical dimensions of the lamp housing. This provides an avenue to increase the conversion efficiency of the RF driver and the efficacy of the lamp system.Type: GrantFiled: September 20, 2016Date of Patent: May 2, 2017Assignee: SPL INDUSTRIES USA, INC.Inventors: Timothy J. Brockett, Gregg A. Hollingsworth, Mehran Matloubian
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Patent number: 9412550Abstract: An electron beam device has a body provided with an exit window, said body is forming or is at least partly forming a vacuum chamber, the vacuum chamber comprising therein a cathode housing and at least one electron generating filament. At least one getter sheet is provided between the cathode housing and the filament. The invention is further comprising a getter sheet for use in an electron beam device and a method of manufacturing an electron beam device comprising at least one getter sheet.Type: GrantFiled: June 27, 2012Date of Patent: August 9, 2016Assignee: TETRA LAVAL HOLDINGS & FINANCE S.A.Inventors: Werner Haag, Dominique Cloetta, Urs Hostettler, Benno Zigerlig, Toni Waber
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Patent number: 9324555Abstract: Energy-saving lamps contain a gas filling of mercury vapor and argon in a gas discharge bulb. Amalgam spheres are used for filling the gas discharge bulb with mercury. A tin amalgam having a high proportion by weight of mercury in the range from 30 to 70% by weight is proposed. Owing to the high mercury content, the amalgam spheres have liquid amalgam phases on the surface. Coating of the spheres with a tin or tin alloy powder converts the liquid amalgam phases on the surface into a solid amalgam having a high tin content. This prevents conglutination of the amalgam spheres during storage and processing.Type: GrantFiled: June 27, 2013Date of Patent: April 26, 2016Assignee: UMICORE AG & CO. KGInventors: Georg Ptaschek, Calogero Di Vincenzo
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Patent number: 9030088Abstract: A fluorescent lamp has an amalgam chamber that is in communication with the interior of the lamp through an exhaust tube. The amalgam chamber is constructed as a three-way junction with the exhaust tube and is formed at a supplementary angle of 180 degree or less with respect to the exhaust tube. The construction of the chamber utilizes the force of gravity to keep the amalgam away from the opening of the exhaust tube leading to the interior of the lamp. The amalgam chamber is capable of effectively retaining the amalgam within the chamber and preventing it from penetrating into the interior of the lamp regardless of mounting direction.Type: GrantFiled: May 7, 2012Date of Patent: May 12, 2015Inventor: John Yeh
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Patent number: 8901842Abstract: An induction RF fluorescent lamp includes a lamp envelope with a re-entrant cavity both covered on a partial vacuum side with phosphor and filled with a working gas mixture; a power coupler on the non-vacuum side of said re-entrant cavity comprising a ferromagnetic core overwound with at least one turn of an electrical conductor; an electronic ballast, wherein the ballast converts mains frequency voltage and current to a power coupler frequency voltage and current, the electronic ballast providing the voltage and current to the power coupler through at least two of a plurality of electrical terminals of the electronic ballast; a capacitor electrically connected between the ferromagnetic core and at least one of the plurality of electrical terminals of the electronic ballast, wherein the magnitude of the impedance of the capacitor is high at the mains frequency and the magnitude of the impedance of that same capacitor is low at the operating frequency of the RF fluorescent lamp.Type: GrantFiled: April 25, 2013Date of Patent: December 2, 2014Assignee: Lucidity Lights, Inc.Inventor: Victor D. Roberts
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Patent number: 8878436Abstract: A fluorescent lighting device includes an arc tube, an exhaust tube extending from the arc tube, and an amalgam. A resistive heater is located adjacent to at least one of the arc tube and the exhaust tube. A power supply circuit is operatively coupled with the resistive heater. When the fluorescent lighting device is switched from an OFF state to an ON state, the power supply circuit temporarily energizes the resistive heater, thereby heating the at least one of the arc tube and the exhaust tube while the resistive heater is energized, and automatically de-energizing the resistive heater after said heating.Type: GrantFiled: November 23, 2011Date of Patent: November 4, 2014Assignee: General Electric CompanyInventors: Peter Lucz, Gabor Szabo, Balazs Torok, Miklos Budai, Titusz Talalt, Jacint Gergely, Gabor Schmidt
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Patent number: 8823253Abstract: Discharge lamps containing improved starting amalgam are described. A method to increase the mercury vapor pressure during discharge lamp start-up is also described.Type: GrantFiled: November 16, 2012Date of Patent: September 2, 2014Assignee: Saes Getters S.p.A.Inventors: Alberto Coda, Alessio Corazza, Alessandro Gallitognotta
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Patent number: 8648520Abstract: An inner coupling tubular type electrodeless lamp comprises a glass bulb, an amalgam, and a power coupler. The glass bulb includes an external portion and an inner portion. A gas discharging cavity that is annularly airtight is defined by an envelopment of the external portion and the inner portion. A coupling cavity is defined in the inner portion. The power coupler includes a radiating post, a ferrite core, and a winding sequentially situating from an interior to an exterior thereof. The power coupler is disposed in the coupling cavity. Two ends of the coupling cavity are intercommunicated with each other as well as the exterior. The external portion of the glass bulb adopts the elongated tube. Wherein, a length of the ferrite core of the power coupler is not smaller than a half length of the coupling cavity. A length of the winding is measured from one-fifth to four-fifth of the length of the coupling cavity to evenly distribute an electromagnetic field.Type: GrantFiled: September 9, 2010Date of Patent: February 11, 2014Assignee: Fujian Juan Kuang Yaming Electric LimitedInventors: Wenjun Chen, Heping Chen, Hequan Zhang, Jingping Wu
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Patent number: 8648530Abstract: A fluorescent lighting device includes a ballast and a tube. An amalgam is located within the tube. A resistive heater is operatively coupled with the ballast, to receive electrical power from the ballast while the fluorescent lighting device is in an OFF state. The resistive heater is mounted near the amalgam to transfer heat to the amalgam while the fluorescent lighting device is in the OFF state.Type: GrantFiled: June 30, 2011Date of Patent: February 11, 2014Assignee: General Electric CompanyInventors: Gabor Schmidt, Peter Lucz, Jacint Gergely, Zsolt Bagoly, Tamas Daranyi
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Patent number: 8633642Abstract: The present disclosure relates to a lamp part fixing device and method for lamp components made of shape memory alloy. The device includes a main body that carries, for example, a main or auxiliary amalgam, getter, etc. located at a desired position within a discharge tube of a fluorescent lamp. For example, the amalgam can be advantageously located at preselected axial locations and/or within a diffusion path. The main body is configurable between a first configuration and a second configuration. The first configuration allows the mount to move within the discharge tube when the shape memory alloy is below an alloy transition temperature. The second configuration of the main body allows for controlled placement and immobilization of the device within the discharge tube when the shape memory alloy is raised above the alloy transition temperature. The device is shaped in a generally planar or non-planar configuration.Type: GrantFiled: November 16, 2011Date of Patent: January 21, 2014Assignee: General Electric CompanyInventors: Peter Ivan Poczik, Peter Mora, Peter Lucz, Balazs Torok
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Publication number: 20140009059Abstract: Energy-saving lamps contain a gas filling of mercury vapour and argon in a gas discharge bulb. Amalgam spheres are used for filling the gas discharge bulb with mercury. A tin amalgam having a high proportion by weight of mercury in the range from 30 to 70% by weight is proposed. Owing to the high mercury content, the amalgam spheres have liquid amalgam phases on the surface. Coating of the spheres with a tin or tin alloy powder converts the liquid amalgam phases on the surface into a solid amalgam having a high tin content. This prevents conglutination of the amalgam spheres during storage and processing.Type: ApplicationFiled: June 27, 2013Publication date: January 9, 2014Applicant: UMICORE AG & CO. KGInventors: Georg Ptaschek, Calogero Di Vincenzo
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Patent number: 8598773Abstract: A hot cathode fluorescent lamp (10) of small diameter is described comprising a shield (17) around the cathode (15) to avoid the formation of blackenings on the phosphors due to evaporated material and a mercury filiform mercury dispenser (20) fixed by a metallic part (18) to the front part of the shield, in such a geometry that said dispenser is turned towards the opposite end of the lamp and its axis is essentially parallel to the axis of the lamp.Type: GrantFiled: June 18, 2009Date of Patent: December 3, 2013Assignee: SAES Getters S.p.A.Inventors: Alessio Corazza, Vincenzo Massaro, Mauro Riva
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Publication number: 20130293102Abstract: A fluorescent lamp has an amalgam chamber that is in communication with the interior of the lamp through an exhaust tube. The amalgam chamber is constructed as a three-way junction with the exhaust tube and is formed at a supplementary angle of 180 degree or less with respect to the exhaust tube. The construction of the chamber utilizes the force of gravity to keep the amalgam away from the opening of the exhaust tube leading to the interior of the lamp. The amalgam chamber is capable of effectively retaining the amalgam within the chamber and preventing it from penetrating into the interior of the lamp regardless of mounting direction.Type: ApplicationFiled: May 7, 2012Publication date: November 7, 2013Inventor: John Yeh
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Patent number: 8497622Abstract: Energy-saving lamps contain a gas filling of mercury vapor and argon in a gas discharge bulb. Amalgam spheres are used for filling the gas discharge bulb with mercury. A tin amalgam having a high proportion by weight of mercury in the range from 30 to 70% by weight is proposed. Owing to the high mercury content, the amalgam spheres have liquid amalgam phases on the surface. Coating of the spheres with a tin or tin alloy powder converts the liquid amalgam phases on the surface into a solid amalgam having a high tin content. This prevents conglutination of the amalgam spheres during storage and processing.Type: GrantFiled: April 22, 2008Date of Patent: July 30, 2013Assignee: Umicore AG & Co. KGInventors: Georg Ptaschek, Calogero Di Vincenzo
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Publication number: 20130181600Abstract: An inner coupling electrodeless lamp comprises a glass bulb and a power coupler. A cold end of the glass bulb is provided with an amalgam. The glass bulb includes an external portion and an inner portion. A gas discharging cavity that is annularly airtight is defined by the envelopment of the external portion and the inner portion. The gas discharging cavity is full of inert gas. A coupling cavity is defined in the inner portion. The power coupler includes a radiating post, a ferrite core, and a winding sequentially situating from an interior to an exterior thereof. The power coupler is disposed in the coupling cavity. At least one diffuse reflection layer that is made of a material falling in a 250˜2000 nm spectrum scope and containing a high diffuse reflection rate larger than 30% is disposed between an inner wall of the inner portion and an external surface of the coupler.Type: ApplicationFiled: September 9, 2010Publication date: July 18, 2013Inventors: Wenjun Chen, Heping Chen, Hequan Zhang, Liwu Luo
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Patent number: 8471455Abstract: A fluorescent lamp includes a discharge tube and an auxiliary amalgam assembly held in the discharge tube by a holder. The holder has first and second regions with attaching portions adapted to receive an associated attachment member. The holder has a first dimension prior to disposition in the discharge tube.Type: GrantFiled: January 27, 2010Date of Patent: June 25, 2013Assignee: General Electric CompanyInventors: Peter Mora, Laszlo Bankuti, Peter Lucz
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Publication number: 20130119855Abstract: The present disclosure relates to a lamp part fixing device and method for lamp components made of shape memory alloy. The device includes a main body that carries, for example, a main or auxiliary amalgam, getter, etc. located at a desired position within a discharge tube of a fluorescent lamp. For example, the amalgam can be advantageously located at preselected axial locations and/or within a diffusion path. The main body is configurable between a first configuration and a second configuration. The first configuration allows the mount to move within the discharge tube when the shape memory alloy is below an alloy transition temperature. The second configuration of the main body allows for controlled placement and immobilization of the device within the discharge tube when the shape memory alloy is raised above the alloy transition temperature. The device is shaped in a generally planar or non-planar configuration.Type: ApplicationFiled: November 16, 2011Publication date: May 16, 2013Inventors: Peter Ivan Poczik, Peter Mora, Peter Lucz, Balazs Torok
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Publication number: 20130113362Abstract: A low-pressure discharge lamp includes, in an exemplary embodiment, a light-transmissive envelope, a fill-gas composition capable of sustaining a discharge sealed inside the light-transmissive envelope, and a phosphor composition at least partially disposed on an interior surface of said light-transmissive envelope forming at least one phosphor layer. The phosphor composition includes at least one phosphor, and at least one amalgam-forming material.Type: ApplicationFiled: November 6, 2012Publication date: May 9, 2013Applicant: GENERAL ELECTRIC COMPANYInventor: General Electric Company
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Publication number: 20130113361Abstract: A low-pressure discharge lamp includes, in an exemplary embodiment, a light-transmissive envelope, a fill-gas composition capable of sustaining a discharge sealed inside the light-transmissive envelope, and a phosphor composition at least partially disposed on an interior surface of said light-transmissive envelope forming at least one phosphor layer. The phosphor composition includes at least one phosphor, and at least one amalgam-forming material.Type: ApplicationFiled: November 9, 2011Publication date: May 9, 2013Applicant: GENERAL ELECTRIC COMPANYInventors: Ottokar GYULASI, Peter LUCZ, Peter Ivan POCZIK, Balazs Torok
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Patent number: 8378564Abstract: A compact fluorescent lamp includes a discharge tube such as a spiral discharge tube having a wall forming a discharge chamber between cathodes at first and second ends thereof. At least one auxiliary amalgam assembly is disposed in the discharge chamber at an intermediate region disposed between the first and second ends. The auxiliary amalgam assembly is secured at a location spaced from the inner wall of the discharge chamber.Type: GrantFiled: June 9, 2010Date of Patent: February 19, 2013Assignee: General Electric CompanyInventors: Peter Lucz, Sandor Lukacs, Laszlo Bankuti, Peter Mora
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Patent number: 8378571Abstract: A fluorescent lamp includes a tubular member or envelope having an arc generating and sustaining medium therein. An electrode is provided in each end of the tubular member and a phosphor coating is applied to the interior surface of the tubular member. A mercury dispenser is situated within the tubular member. The mercury dispenser includes a body composed of a material. The body is provided with a bore. A wire plated with a material capable of wetting mercury is provided in the bore. A quantity of mercury is deposited in the bore in contact with the wire.Type: GrantFiled: October 11, 2010Date of Patent: February 19, 2013Assignee: OSRAM SYLVANIA Inc.Inventors: David W. Johnston, Gregory Zaslavsky, William George
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Patent number: 8299697Abstract: A high performance fluorescent lamp includes an air-vacuum glass envelope having sealed ends, and a light cavity filled with inert gas and coated with a phosphor layer at an inner wall of said light cavity; two electrodes sealed at each of the sealed ends of the glass envelope; and a narrowing channel integrally formed at one of the sealed ends of the glass envelope at a location communicating with the light cavity of the glass envelope. Therefore, the amalgam is contained within the narrowing channel at a position forming a preset distance between one of the electrodes sealed at the corresponding sealed end and the amalgam.Type: GrantFiled: October 15, 2010Date of Patent: October 30, 2012Inventor: Qin Kong
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Patent number: 8253331Abstract: A fluorescent lamp includes a discharge tube having an inner wall forming a discharge chamber. One or more coiled electrodes are disposed within the discharge tube. A mercury containing composition is disposed on at least one coiled electrode.Type: GrantFiled: April 28, 2010Date of Patent: August 28, 2012Assignee: General Electric CompanyInventors: Zoltan Somogyvari, Laszlo Balazs
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Patent number: 8198815Abstract: An inductively coupled fluorescent discharge lamp includes a light transmissive envelope having a re-entrant cavity that has an outer surface inside the envelope, and an excitation coil inside the re-entrant cavity, and a spring clip that is attached to the outer surface of the re-entrant cavity by spring action of the spring clip on the outer surface, where the spring clip includes an amalgam. The spring clip may include a layer of the amalgam plated on a surface of the clip, or an amalgam-bearing flag attached to the clip.Type: GrantFiled: September 29, 2009Date of Patent: June 12, 2012Assignee: OSRAM SYLVANIA Inc.Inventors: Richard S. Speer, Jeffery Serre
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Publication number: 20120091880Abstract: A high performance fluorescent lamp includes an air-tight glass envelop having sealed ends and a light cavity filled with inert gas and coated with a phosphor powder at an inner wall of the glass envelop. Two filaments are sealed at the sealed ends of the glass envelop respectively. A channel is formed at one of the sealed ends of the glass envelop at a location communicating with the light cavity of the glass envelop. An amalgam is retained within the channel at a position forming a preset distance between the respective filament and the amalgam. Therefore, the fluorescent lamp can be operated under different ambient temperature or different wattage of the fluorescent lamp with the similar type of amalgam by controlling a distance between the amalgam and the respective filament.Type: ApplicationFiled: October 15, 2010Publication date: April 19, 2012Inventor: Qin Kong
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Patent number: 8129893Abstract: A quick start energy-saving fluorescent lamp comprising a bulb holder assembly, a light tube, a glass shade, a protruding cold end, a thermal insulation glue, and an amalgam vapor source. The protruding cold end is disposed at the front end of the light tube and contacts with the glass shade. The thermal insulation glue is disposed outside and around the cold end. The amalgam vapor source is disposed inside the cold end. The lamp can work at high temperature with low temperature amalgam vapor source and maintain high luminous efficiency, and the lamp can reach the rated brightness quickly. A method for producing the lamp is also provided.Type: GrantFiled: October 27, 2010Date of Patent: March 6, 2012Assignee: Zhejiang Yankon Group Co., Ltd.Inventor: Yang Li
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Publication number: 20110304258Abstract: A compact fluorescent lamp includes a discharge tube such as a spiral discharge tube having a wall forming a discharge chamber between cathodes at first and second ends thereof. At least one auxiliary amalgam assembly is disposed in the discharge chamber at an intermediate region disposed between the first and second ends. The auxiliary amalgam assembly is secured at a location spaced from the inner wall of the discharge chamber.Type: ApplicationFiled: June 9, 2010Publication date: December 15, 2011Inventors: Peter Lucz, Sandor Lukacs, Laszlo Bankuti, Peter Mora
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Publication number: 20110298356Abstract: A compact fluorescent lamp includes a discharge tube having cathodes disposed adjacent opposite ends. A fill gas which includes mercury is disposed within the discharge tube. The lamp further includes an amalgam located in the discharge tube and dispersed in the arc to be heated thereby for emitting mercury vapor during at least a starting period.Type: ApplicationFiled: June 8, 2010Publication date: December 8, 2011Inventors: Peter Lucz, Jozsef Fulop, Attila Kulcsar, Qi Long
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Patent number: 8018130Abstract: The invention relates to a lamp system comprising a low-pressure mercury vapor discharge lamp having a discharge vessel (6) enclosing a discharge space (8), with two electrodes (10, 30) positioned in the discharge vessel and an amalgam (18) arranged at a first end section (28) outside the discharge path between the first electrode and the second electrode. A ballast generates an electrical discharge current independently of an electrical heating current. A heating element (22) is positioned in the first end section for heating the amalgam using the electrical heating current. The temperature of the amalgam can be kept within its optimal temperature range for a relatively broad range of operating conditions.Type: GrantFiled: January 30, 2007Date of Patent: September 13, 2011Assignee: Koninklijke Philips Electronics N.V.Inventors: Antonius Cornelis Van Den Broek, John Elen, Frank Kloek, Koen Lenaerts, Heleen Esch, Jaak Geboers
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Patent number: 7990041Abstract: An amalgam capsule (16) for a low-pressure mercury vapor discharge lamp (1) has a closed end and an opposing end with an opening (21) to allow passage of mercury vapor between the amalgam plug (18) and the discharge space (3) of the lamp (1). A glass rod (19) placed in the capsule (16) restrains movement of the amalgam plug (18), and projections (20) in the inner wall of the capsule (16) restrain movement of the glass rod (19). The presence of the amalgam capsule (16) in the discharge space (3) enables highly-loaded, substantially temperature-independent operation of linear fluorescent lamps such as T8 lamps.Type: GrantFiled: May 5, 2008Date of Patent: August 2, 2011Assignee: Koninklijke Philips Electronics N.V.Inventors: Brett Carter, Ronald Huijben
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Publication number: 20110181176Abstract: A fluorescent lamp includes a discharge tube and an auxiliary amalgam assembly held in the discharge tube by a holder. The holder has first and second regions with attaching portions adapted to receive an associated attachment member. The holder has a first dimension prior to disposition in the discharge tube.Type: ApplicationFiled: January 27, 2010Publication date: July 28, 2011Inventors: Peter Mora, Laszlo Bankuti, Peter Lucz
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Patent number: 7982383Abstract: Mercury dispensers (10; 20) having a highly reduced particle loss and containing a mixture of powders of a mercury releasing compound and of a plastic metal or alloy and optionally of a getter material are described. A mercury dispensing device (10:20) has a filiform cross-section, obtained by cutting a manufactured product having the same cross-section but a higher length, and comprises a metal container (11;21) and a mixture (12;22) of powders, comprised of at least one material suitable for releasing mercury by heating and a metal or a metal alloy, said mixture being arranged inside the container. Said metal or metal alloy has a Vickers hardness lower than 130 HV, its weight percentage is lower than the 10% of the total weight of the powders mixture and the size of the powders of said metal or alloy are not bigger than the size of the other powders of the mixture.Type: GrantFiled: December 12, 2008Date of Patent: July 19, 2011Assignee: Saes Getters S.p.A.Inventors: Alessio Corazza, Vincenzo Massaro, Diego Di Giampietro, Gianni Santella
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Patent number: 7977858Abstract: A low-pressure mercury vapor discharge lamp is provided with a discharge vessel which encloses a discharge space including a filling of mercury and a rare gas in a gastight manner. The discharge vessel further includes an amalgam which communicates with the discharge space. The lamp has a discharge device for maintaining an electric discharge in the discharge vessel. The amalgam includes a bismuth-tin-indium compound having a bismuth (Bi) content in the range between 30?Bi?70 wt. %, a tin (Sn) content in the range between 25?Sn?67 wt. %, and an indium (In) content in the range between 3?In ?5 wt. %.Type: GrantFiled: July 17, 2007Date of Patent: July 12, 2011Assignee: Koninklijke Philips Electronics N.V.Inventors: Wim Hellebrekers, Lambert Christiaan Ida Kaldenhoven
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Publication number: 20110101850Abstract: A quick start energy-saving fluorescent lamp comprising a bulb holder assembly, a light tube, a glass shade, a protruding cold end, a thermal insulation glue, and an amalgam vapor source. The protruding cold end is disposed at the front end of the light tube and contacts with the glass shade. The thermal insulation glue is disposed outside and around the cold end. The amalgam vapor source is disposed inside the cold end. The lamp can work at high temperature with low temperature amalgam vapor source and maintain high luminous efficiency, and the lamp can reach the rated brightness quickly. A method for producing the lamp is also provided.Type: ApplicationFiled: October 27, 2010Publication date: May 5, 2011Applicant: ZHEJIANG YANKON GROUP CO., LTD.Inventor: Yang LI
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Publication number: 20110074278Abstract: A hot cathode fluorescent lamp (10) of small diameter is described comprising a shield (17) around the cathode (15) to avoid the formation of blackenings on the phosphors due to evaporated material and a mercury filiform mercury dispenser (20) fixed by a metallic part (18) to the front part of the shield, in such a geometry that said dispenser is turned towards the opposite end of the lamp and its axis is essentially parallel to the axis of the lamp.Type: ApplicationFiled: June 18, 2009Publication date: March 31, 2011Inventors: Alessio Corazza, Vincenzo Massaro, Mauro Riva
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Publication number: 20110074277Abstract: An inductively coupled fluorescent discharge lamp includes a light transmissive envelope having a re-entrant cavity that has an outer surface inside the envelope, and an excitation coil inside the re-entrant cavity, and a spring clip that is attached to the outer surface of the re-entrant cavity by spring action of the spring clip on the outer surface, where the spring clip includes an amalgam. The spring clip may include a layer of the amalgam plated on a surface of the clip, or an amalgam-bearing flag attached to the clip.Type: ApplicationFiled: September 29, 2009Publication date: March 31, 2011Applicant: OSRAM SYLVANIA INC.Inventors: Richard S. Speer, Jeffery Serre
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Publication number: 20100264811Abstract: There is provided a cap and socket arrangement for compact fluorescent lamps. The lamp comprises a discharge tube arrangement made of glass and having sealed ends being positioned at one end of the lamp. A continuous arc path is formed inside the discharge tube between two electrodes disposed at one end of the lamp. At least one of the sealed ends is also provided with an amalgam fill. The sealed ends of the discharge tube arrangement are received in the cap, and the cap comprises contact members and a protruding fitting member for being received in the socket. The socket has a hollow member for receiving the fitting member of the cap, and contact elements for receiving the contact members of the cap. The fitting member and the socket are provided with matching positioning elements for determining the position of the cap with respect to the socket and thereby determining the spatial position of the electrode with respect to the amalgam.Type: ApplicationFiled: April 21, 2009Publication date: October 21, 2010Inventors: Istvan Wursching, Jozsef Fulop, Ferenc Papp, Karoly Talosi
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Patent number: 7816849Abstract: A germicidal lamp having amalgam for controlling mercury vapor pressure contained in a location facilitating efficient high output operation. A low pressure mercury vapor discharge lamp has an amalgam container containing an amalgam positioned behind an electrode out of the arc path or space. The amalgam position is retained during high wall loading of the lamp preventing the amalgam from moving out of position. A heating and cooling element is placed generally at the amalgam position controlling the temperature of the amalgam. Efficient operation with high current loads and resulting high wall loading and temperatures is possible. The temperature control of the amalgam may also be used to dim or modify the illumination output of the lamp. The germicidal lamp is particularly suited to being positioned vertically in a waste water treatment system.Type: GrantFiled: July 31, 2006Date of Patent: October 19, 2010Assignee: Light Sources, Inc.Inventor: Arpad Pirovic
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Patent number: 7812533Abstract: A fluorescent lamp (10) includes a tubular member or envelope (12) having an arc generating and sustaining medium (15) therein. As known, the tubular envelope (12) is constructed of a suitable glass, for example lime glass. An electrode (14) is provided in each end of the tubular member (12) and a phosphor coating (16) is applied to the interior surface (18) of the tubular member (12). A mercury dispenser (20) is situated within the tubular member (12). The mercury dispenser (20) includes a body (21) composed of a material selected from the group consisting of glass and ceramic materials. The body (21) is provided with a bore (22). A first material (24) capable of wetting mercury coats the bore. In a preferred embodiment the first material (24) is silver having a thickness between 0.1? and 8?. A quantity of mercury (26) is deposited in the bore (22) in contact with the first material (24).Type: GrantFiled: November 9, 2007Date of Patent: October 12, 2010Assignee: OSRAM SYLVANIA Inc.Inventors: David W. Johnston, William A. George, Richard S. Speer, Gregory Zaslavsky
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Patent number: 7683542Abstract: An arrangement of a low-pressure mercury amalgam lamp includes an amalgam deposit and a cladding tube surrounding a lamp, wherein the lamp has a mechanical contact to the cladding tube in a region of the amalgam deposit. A ring-shaped band contacting and surrounding the lamp in the region of the amalgam deposit represents the mechanical contact to the cladding tube.Type: GrantFiled: May 19, 2006Date of Patent: March 23, 2010Assignee: Heraeus Noblelight GmbHInventors: Alexei Voronov, Erich Arnold, Erik Roth
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Publication number: 20100019651Abstract: The invention relates to a low-pressure mercury vapor discharge lamp provided with a discharge vessel (10; 210; 310) which encloses a discharge space (11; 211; 311) comprising a filling of mercury and a rare gas in a gastight manner. The discharge vessel (10; 210; 310) further comprises an amalgam (63; 263; 363) which communicates with the discharge space (11; 211; 311). The lamp has discharge means (41a, 41b; 234; 341a, 341b) for maintaining an electric discharge in the discharge vessel (10; 210). The amalgam (63; 263; 363) comprises a bismuth-tin-indium compound having a bismuth (Bi) content in the range between 30<Bi<70 wt. %, a tin (Sn) content in the range between 25<Sn<67 wt. %, and an indium (In) content in the range between 3<In<5 wt. %. The lamp according to the invention can be dimmed in a more controller manner.Type: ApplicationFiled: July 17, 2007Publication date: January 28, 2010Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.Inventors: Wim Hellebrekers, Lambert Christiaan Ida Kaldenhoven
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Patent number: 7592742Abstract: An auxiliary amalgam is contained in a light-emitting tube. The auxiliary amalgam has a base, a metal layer provided on the base, and a diffusion-inhibiting layer provided between the base and the metal layer.Type: GrantFiled: August 16, 2005Date of Patent: September 22, 2009Assignee: Toshiba Lighting & Technology CorporationInventors: Yuichiro Takahara, Masahiro Izumi, Nobuhiro Tamura, Mitsunori Nakamura, Toshiyuki Ikeda
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Publication number: 20090230838Abstract: A fluorescent lamp can be configured to prevent a decrease in luminescent efficiency when located in a high temperature room. The fluorescent lamp can include a couple of stems each including an emitter electrode located opposite to each other at each end of a tube, a filler gas located in the tube, a damping material and a coolest portion connected to the tube via the stem and the damping material. The coolest portion can be configured with a first material that has a higher thermal conductivity than the conductivity of both the tube and the stems. The damping material can be configured with both the first material and a second material that has a lower conductivity than the conductivity of the first material. A content ratio of first material vs. second material can change along a length of the damping material. Thus, the coolest portion can maintain a favorable temperature and the fluorescent lamp can maintain a favorable luminescent efficiency even when in a sealed casing.Type: ApplicationFiled: January 12, 2009Publication date: September 17, 2009Inventors: YOSHIFUMI TAKAO, Naoyuki Matsubara
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Publication number: 20090230837Abstract: A fluorescent lamp includes a light-transmissive glass envelope having an inner surface, means for providing an electric discharge to the interior of the glass envelope, a phosphor layer within the interior of the glass envelope and a discharge-sustaining fill gas and a mercury dose sealed inside the light-transmissive glass envelope. The light-transmissive glass envelope can comprise a light-transmissive mixed alkali glass envelope and the phosphor layer can comprise a phosphor layer of approximately three mg/cm2. A barrier layer of approximately 0.3 mg/cm2 or less of alumina can be applied to the inner surface of the light-transmissive glass envelope. The mercury dose can be present in an amount to provide a saturated mercury vapor pressure within the light-transmissive glass envelope throughout substantially the entire life of the lamp. The lamp can have an end-of-life mercury consumption value of approximately 0.63 mg or less, including 0.Type: ApplicationFiled: March 13, 2008Publication date: September 17, 2009Applicant: GENERAL ELECTRIC COMPANYInventors: Istvan Deme, Laszlo Balazs, Katalin Toth, Jon B. Jansma
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Publication number: 20090218927Abstract: A fluorescent lamp is configured so that a glass bulb has a phosphor film formed on its internal face, and a rare gas and an amalgam pellet are enclosed therein. The amalgam pellet contains zinc, tin, and mercury as principal components, one amalgam pellet is enclosed in the glass bulb, and the amalgam pellet has a weight of not more than 20 mg. The fluorescent lamp satisfies the relationship expressed as: 45×(1?A)?x?55×(1?A), 75A?y?85A, 45?30A?z?55?30A, and x+y+z?100, where x represents a content of zinc contained in the amalgam pellet in percent by weight, y represents a content of tin therein in percent by weight, and z represents a content of mercury therein in percent by weight. This configuration allows the fluorescent lamp to be characterized in that an amount of released mercury that is necessary for the first lighting of the fluorescent lamp is secured, and that the phosphor film is less prone to being peeled due to the amalgam.Type: ApplicationFiled: April 15, 2009Publication date: September 3, 2009Applicant: PANASONIC CORPORATIONInventors: Hiroshi YAGI, Yoshio MANABE, Tsuyoshi TERADA