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| Number | Title | Issue Date |
| 7812533 | Mercury dispenser, method of making mercury dispenser and method of dosing mercury into ARC discharge lamp 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 (... | 10/12/2010 |
| 7683542 | Direct cooling of an amalgam deposit in a low-pressure mercury amalgam lamp 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... | 03/23/2010 |
| 7372201 | Sub-miniature arc lamp The disclosure has described a sub-miniature arc lamp and a method to make a sub-miniature arc lamp. An embodiment of the sub-miniature arc lamp includes a sapphire body having a first end and a second end, the first end being coupled to a first cap and the second e... | 05/13/2008 |
| 7288882 | Lamp electrode and method for delivering mercury A lamp electrode adapted to deliver mercury during an assembly process has a supporting electrical lead attached to the proximal end of a metallic shell. The proximal and a distal ends of the metallic shell each lie along a central axis. A container with a vitreous ... | 10/30/2007 |
| 7215081 | HID lamp having material free dosing tube seal A hermetically sealed lamp having at least one seal-material-free bond. The seal material-free bond may be a material diffusion bond, a mechanically deformed bond such as a cold weld or crimp, a focused heat bond such as a laser bond, or any other such bond. For exa... | 05/08/2007 |
| 7180232 | Low-pressure mercury vapor discharge lamp Low-pressure mercury vapor discharge lamp comprises a light-transmitting discharge vessel (10) enclosing, in a gastight manner, a discharge space (13) provided with a filling of mercury and a rare gas. The discharge vessel comprises discharge means ( | 02/20/2007 |
| 7176626 | Method of controlling leachable mercury in lamps A method for inhibiting mercury from leaching from a land-filled arc discharge lamp containing a quantity of elemental mercury at least partially convertible to soluble mercury, provides for including within the lamp a quantity of a non-metallic copper-containing co... | 02/13/2007 |
| 7063583 | Multi-spectral uniform light source A multi-spectral uniform light source provides a single light source for a variety of applications. The gas or gases inside the light source may be exchanged for another gas or gases depending on the desired application and need for a particular wavelength of emitte... | 06/20/2006 |
| 7049748 | DISPLAY DEVICE EMPLOYING GAS DISCHARGE TUBES ARRANGED IN PARALLEL BETWEEN FRONT AND REAR SUBSTRATES TO COMPRISE A DISPLAY SCREEN, EACH TUBE HAVING A LIGHT EMITTING SECTION AS PART OF THE DISPLAY SCREEN AND A CLEANING SECTION CONNECTED TO THE LIGHT EMITTING SECTION BUT DISPLACED FROM THE DISPLAY SCREEN A gas discharge tube has a phosphor layer formed and a discharge gas enclosed within an elongated tube which is to serve as the gas discharge tube. The gas discharge tube includes a light-emitting section and a cleaning section for cleaning the discharge gas. The cl... | 05/23/2006 |
| 7030559 | Arc discharge lamp containing means for reducing mercury leaching An arc discharge lamp containing a quantity of elemental mercury at least partially convertible to soluble mercury, provides for including within the lamp a quantity of a non-metallic copper-containing compound and an ingredient X, said ingredient X including a nobl... | 04/18/2006 |
| 6936967 | Fluorescent lamp and method of manufacturing same Fluorescent lamp (1) having a glass discharge vessel (2) in which a gas is present, which discharge vessel (2) is provided with a tubular end portion (3) having a longitudinal axis, which end portion (3) includes a glass stem (5... | 08/30/2005 |
| 6913504 | Method for introducing mercury into a fluorescent lamp during manufacture and a mercury carrier body facilitating such method Method for introducing a limited amount of mercury into a fluorescent lamp during manufacture thereof includes the steps of forming the lamp with an exhaust tubulation therein open at an end thereof, exhausting the interior of the lamp through the exhaust tubulation... | 07/05/2005 |
| 6905385 | Method for introducing mercury into a fluorescent lamp during manufacture and a mercury carrier body facilitating such method Method for introducing a limited amount of mercury into a fluorescent lamp during manufacture thereof includes the steps of forming the lamp with an exhaust tubulation therein open at an end thereof and provided with a ball retention structure, exhausting the interi... | 06/14/2005 |
| 6906460 | Device and method for retaining mercury source in low-pressure discharge lamps A device for retaining a mercury source in the discharge space of a low-pressure discharge lamp is disclosed. The mercury source retaining device comprises a holder, which has an inner space communicating with the discharge space and a receiver opening for receiving... | 06/14/2005 |
| 6841939 | Fluorescent lamp A mercury vapor discharge fluorescent lamp is provided that has a mercury barrier. The mercury barrier is effective to inhibit mercury atoms from absorbing into the glass envelope and amalgamating with sodium atoms in the envelope. The mercury barrier is substantial... | 01/11/2005 |
| 6791254 | Fluorescent lamp containing a mercury zinc amalgam and a method of manufacture A fluorescent lamp containing zinc amalgam and a method of precisely controlling the amount of mercury introduced into a temperature controlled fluorescent lamp. Precise quantities of mercury may be introduced into a fluorescent lamp in the form of solid zinc amalga... | 09/14/2004 |
| 6787980 | Mercury-containing material, method for producing the same and fluorescent lamp using the same A mercury-containing material, a method for producing the same and a fluorescent lamp using the same that can enclose a minimal amount of mercury in a glass bulb precisely, prevent flaws in a fluorescent coating while suppressing a noise during a lamp transportation... | 09/07/2004 |
| 6781303 | Mercury vapor lamp amalgam target A mixture of indium metal and titanium metal is fused to the inner surface of a quartz envelope of a mercury vapor discharge lamp. ... | 08/24/2004 |
| 6741030 | Control of leachable mercury in fluorescent lamps A method for inhibiting the leaching of mercury from a mercury vapor discharge lamp wherein at least a part of the mercury is present as ionic mercury includes depositing a coating of SnO2 on an interior surface of the lamp envelope. The SnO2 c... | 05/25/2004 |
| 6734616 | Low-pressure mercury-vapor discharge lamp and amalgam A low-pressure mercury-vapor discharge lamp is provided with a discharge vessel (10). The discharge vessel (10) encloses a discharge space (11) provided with a filling of mercury and an inert gas in a gastight manner. The discharge vessel (10... | 05/11/2004 |
| 6717363 | Control of leachable mercury in fluorescent lamps by gelatin The formation of leachable mercury upon disposal in a landfill or during TCLP testing of mercury vapor discharge lamps is substantially prevented by incorporation of an amount of gelatin or a degradation product of gelatin which is effective to substantially prevent... | 04/06/2004 |
| 6707246 | Low-pressure mercury vapor discharge lamp with improved auxiliary amalgam A low-pressure mercury vapor discharge lamp is provided with a discharge vessel (10). The discharge vessel comprises tubular end portions (11; 11′), which each have a longitudinal axis (12; 12′). The discharge vessel (10) encloses a d... | 03/16/2004 |
| 6680571 | Device for introducing small amounts of mercury into fluorescent lamps A device and a method are disclosed for introducing into the fluorescent lamps small amounts of mercury. The device is formed of a metallic container which is capable of containing powders of one or more compounds having the general formula Tix... | 01/20/2004 |
| 6611091 | Fluorescent lamp and method for manufacturing it A fluorescent lamp has an amalgam container settled inside an exhaust pipe extending from an end portion of a bulb to which electrodes are attached at both end portions. The amalgam container contains amalgam inside and has an opening portion through whic... | 08/26/2003 |
| 6597105 | Fluorescent lamp with amalgam container A fluorescent lamp capable of fully securing a portion for containing a mercury amalgam pellet and reliably preventing the mercury amalgam pellet from moving toward the inside a discharge tube, and a method for manufacturing the fluorescent lamp. The fluo... | 07/22/2003 |
| 6518701 | Mercury capsule for use in a fluorescent lamp A mercury capsule for use in a fluorescent lamp comprises a shell defining a chamber and a bore extending through the shell. A body of mercury is disposed in the chamber. A plug is disposed in the bore to seal the bore. The plug exhibits a melting point r... | 02/11/2003 |
| 6515418 | High pressure sodium discharge lamp A high pressure sodium vapour lamp having a fill consisting of sodium, mercury and xenon in an arc tube with a sodium weight portion within the sodium-mercury-amalgam of approx. 12% to approx. 20%, having a xenon filling pressure in the cold state between... | 02/04/2003 |
| 6489721 | Control of leachable mercury in fluorescent lamps A method and apparatus for preventing the formation of leachable mercury in mercury arc vapor discharge lamps is provided which comprises providing in the lamp structure an effective amount of an antioxidant composition and an iron shield wherein the iron... | 12/03/2002 |
| 6476553 | Flourescent discharge tube with amalgam positioning requirements and bulb-shaped fluorescent lamp using the same A small fluorescent discharge tube and a bulb-shaped fluorescent lamp using the same with improved rise characteristics with respect to luminous flux in the case of a relatively short non-operation time of one to six hours after a stop of operation are pr... | 11/05/2002 |
| 6456004 | Fluorescent lamp having uniquely configured container containing amalgam for regulating mercury vapor equilibrium An apparatus and method for improving the performance of a lamp includes an envelope (10) enclosing an amalgam or dose (24) of mercury housed in a container (20). The container maintains mercury vapor equilibrium during lamp operation and prevents mercury... | 09/24/2002 |
| 6404122 | Low-pressure mercury vapor discharge lamp A low-pressure mercury vapor discharge lamp is provided with a discharge vessel (10) enclosing a discharge space (11) containing a filling of mercury and a rare gas, an amalgam (63) which communicates with the discharge space (11), and means for maintaini... | 06/11/2002 |
| 6339287 | Fluorescent lamp containing a mercury zinc amalgam and a method of manufacture A fluorescent lamp containing zinc amalgam and a method of precisely controlling the amount of mercury introduced into a temperature controlled fluorescent lamp. Precise quantities of mercury may be introduced into a fluorescent lamp in the form of solid ... | 01/15/2002 |
| 6310437 | Fluorescent lamp extension tube amalgam holder A glass extension (24) with a cavity (32) for an amalgam (22) is added to an exhaust tube (12) or a flare (14) of a fluorescent lamp. The mouth (36) of the cavity (32) is provided with a bimetal valve having a cover portion (40) to close the cavity (32) w... | 10/30/2001 |
| 6304030 | Low-pressure mercury vapor discharge lamp A low-pressure mercury vapor discharge lamp with a discharge vessel (10) having first and second end portions (11). The discharge vessel encloses a discharge space provided with a filling of mercury and an inert gas in a gastight manner. Each end portion ... | 10/16/2001 |
| 6304029 | Low pressure mercury discharge lamp having a mercury holder with reduced lead oxide A method of manufacturing a low-pressure mercury vapor discharge lamp starting from a discharge vessel (10) wherein a closed holder (22) is placed which is provided with a quantity of one or more substances to be introduced in the discharge vessel (10). S... | 10/16/2001 |
| 6229260 | Control of leachable mercury in fluorescent lamps The formation of leachable mercury upon disposal in a landfill or during TCLP testing of mercury vapor discharge lamps is substantially prevented by incorporation of an amount of dehydroascorbic acid or a degradation product of dehydroascorbic acid which ... | 05/08/2001 |
| 6224446 | Control of leachable mercury in fluorescent lamps by addition of copper compounds The formation of leachable mercury upon disposal or during TCLP testing of mercury vapor discharge lamps is substantially prevented by adding soluble copper salts which are capable of being reduced to elemental copper which deposits on aluminum and other ... | 05/01/2001 |
| 6169362 | Mercury vapor discharge lamp containing means for reducing leachable mercury An improvement in a mercury vapor discharge lamp having an envelope of light-transmitting vitreous material containing an inert starting gas and a quantity of elemental mercury at least in part convertible to soluble mercury, and first and second electrod... | 01/02/2001 |
| 5998927 | Control of leachable mercury in fluorescent lamps by iron addition The formation of leachable mercury upon disposal or during TCLP testing of mercury vapor discharge lamps is substantially prevented by maintaining the amount of elemental iron at a level which is at least about 100 to about 1000 milligrams per kilogram of... | 12/07/1999 |
| 5994838 | Mercury vapor discharge lamp having means for reducing mercury leaching In a mercury vapor discharge lamp having an envelope of light-transmitting vitreous material and containing an inert gas and a quantity of elemental mercury at least partially convertible to soluble mercury, and first and second electrodes disposed within... | 11/30/1999 |
