Patents Assigned to GTE Products Corporation
  • Patent number: 5234710
    Abstract: A skin tanning fluorescent lamp having a coating of a uniform and homogeneous deflocculated physical mixture of a first and second phosphor where the first phosphor has a desired emission in the spectral region from about 320 to about 400 nanometers and the second phosphor has a desired emission in the spectral region from about 280 to about 320 nanometers, said first phosphor has a first isoelectric point at a first pH and the second phosphor has a second isoelectric point at a second pH. The first and said second pH form a range. The deflocculated coating is stabilized by deflocculating the first and second phosphors at a third pH sufficiently outside of range to produce a resulting coating consistently having desirable emission during production.
    Type: Grant
    Filed: December 13, 1991
    Date of Patent: August 10, 1993
    Assignee: GTE Products Corporation
    Inventors: Arunava Dutta, Paul W. Salvi
  • Patent number: 5231123
    Abstract: A basing cement comprises, in weight percent, 80 to 85 filler material of limestone and lithopone, and 15 to 20 of binder resins including at least 6 weight percent of araucaria resin.
    Type: Grant
    Filed: January 2, 1990
    Date of Patent: July 27, 1993
    Assignee: GTE Products Corporation
    Inventors: Nidhi Goel, John A. Arbie, Sr., Kevin L. Brown, Doris L. Brown
  • Patent number: 5229686
    Abstract: A mercury vapor discharge lamp (e.g., a fluorescent lamp) having an envelope containing an inert starting gas and a quantity of elemental mercury at least partially convertible to soluble mercury. Enclosed within the lamp is an amount of chemical agent suitable for chemically combining a substantial portion of the soluble mercury as a sparingly soluble salt when the lamp is pulverized as a result of disposal. In one embodiment, the chemical agent is potassium periodate which is sealed within a enclosure which is rupturable upon pulverization of the lamp. The sealed enclosure may be disposed within the envelope or external to the envelope, such as within a cavity defined by a lamp base. In another embodiment, the chemical agent is mixed with the basing cement used to secure one or more of the the lamp bases to the envelope.
    Type: Grant
    Filed: October 9, 1991
    Date of Patent: July 20, 1993
    Assignee: GTE Products Corporation
    Inventors: Richard A. Fowler, Robert P. Bonazoli
  • Patent number: 5229687
    Abstract: 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 partially convertible to soluble mercury. Enclosed within the lamp is an amount of chemical agent suitable for electrochemically reducing a substantial portion of the soluble mercury to elemental mercury when the lamp is pulverized as a result of disposal. Preferably, the chemical agent is an element (i.e., copper or iron) which has an electrode potential for oxidation reactions higher than mercury. In a preferred embodiment, the chemical agent is sealed within an enclosure (e.g., glass) which is rupturable upon pulverization of the lamp. The sealed enclosure is disposed within the envelope or external to the envelope, such as within a cavity defined by a lamp base member. In another embodiment, the chemical agent is mixed with the basing cement used to secure the lamp bases to the envelope.
    Type: Grant
    Filed: October 9, 1991
    Date of Patent: July 20, 1993
    Assignee: GTE Products Corporation
    Inventors: Richard A. Fowler, Robert P. Bonazoli
  • Patent number: 5225733
    Abstract: A scandium halide and alkali metal halide discharge lamp has a chemical fill in the arc tube comprising an inert starting gas, mercury, alkali metal iodides, scandium iodide and platinum metal as an additive for reducing the tendency of the lamps to discolor during operation.
    Type: Grant
    Filed: December 17, 1991
    Date of Patent: July 6, 1993
    Assignee: GTE Products Corporation
    Inventor: Zeya K. Krasko
  • Patent number: 5223782
    Abstract: In a method for detecting the fluidity of particles in a vertically extending bed of fluidized particles, an electric charge which is generated on the particles is dissipated through an electrically conductive means in the fluidized bed to give an indication of the fluidity of the particles in the bed.
    Type: Grant
    Filed: August 27, 1991
    Date of Patent: June 29, 1993
    Assignee: GTE Products Corporation
    Inventors: Arunava Dutta, Leonard V. Dullea
  • Patent number: 5223341
    Abstract: A phosphor of the type utilized in a fluorescent lamp and which includes core elements barium, lead, silicon, and oxygen where a continuous, conformal outer coating of hydration and solubilization resistant aluminum oxide, which is impermeable to migration of the core elements, surrounds the core whereby the outer surface of the core is substantially entirely free of the core elements.
    Type: Grant
    Filed: May 23, 1991
    Date of Patent: June 29, 1993
    Assignee: GTE Products Corporation
    Inventor: A. Gary Sigai
  • Patent number: 5220243
    Abstract: A coated electroluminescent phosphor and an electroluminescent device using the phosphor. The phosphor is coated with a hydrolyzed alkylaluminum coating which renders the phosphors insensitive to atmospheric moisture. The coating process involves vaporizing an aluminum-containing precursor such as trimethylaIuminum or triethylaluminum in an inert gas stream and passing this through a fluidized bed containing the phosphor particles. Water vapor is also passed through the fluidized bed and the water and aluminum precursor react on the surface of the phosphor particles to form hydrolyzed trimethylaluminum or other alkylaluminum. The electroluminescent device includes a first transparent electrode and a second electrode; an electroluminescent phosphor layer disposed between the first electrode and the second electrode; and a transparent substrate supporting the first electrode. The first electrode is disposed between the transparent substrate and the phosphor layer.
    Type: Grant
    Filed: July 10, 1991
    Date of Patent: June 15, 1993
    Assignee: GTE Products Corporation
    Inventors: Keith A. Klinedinst, Richard A. Gary, Silvia E. Lichtensteiger
  • Patent number: 5218269
    Abstract: A glow discharge lamp includes a light-transmitting envelope containing a noble gas fill material. An anode electrode and a cathode electrode are spacedly located within the envelope. The anode electrode includes a single wire having a convoluted portion adjacent the cathode electrode and lying in a plane parallel to a plane intersecting the cathode electrode and a pair of lead-in wires supporting the cathode electrode. The improved anode construction results in an increase in both light output and lamp efficacy.
    Type: Grant
    Filed: November 29, 1991
    Date of Patent: June 8, 1993
    Assignee: GTE Products Corporation
    Inventor: Andre C. Bouchard
  • Patent number: 5215723
    Abstract: The present invention is directed to an inexpensive and compact apparatus adapted for use with a .sup.196 Hg isotope separation process and the conversion of anhydrous HCl to aqueous HCl without the use of air flow to carry the HCl vapor into the converter system.
    Type: Grant
    Filed: December 20, 1990
    Date of Patent: June 1, 1993
    Assignee: GTE Products Corporation
    Inventors: Mark W. Grossman, Richard Speer
  • Patent number: 5213536
    Abstract: A method of fabricating a filamented capsule from a tubular blank, and a mold used in such fabrication, is provided wherein a first filament is sealed in a first press seal in one end of the blank, and a preform designed to facilitate insertion and positioning of a second filament is formed in an opposite end of the blank, in a single pressing and blowing step.
    Type: Grant
    Filed: January 2, 1991
    Date of Patent: May 25, 1993
    Assignee: GTE Products Corporation
    Inventors: Harold L. Hough, George J. English
  • Patent number: 5212469
    Abstract: A trailer lamp controller for use in connecting electrical circuits of turn and brake lamps of a towing vehicle to electrical circuits of turn and brake lamps of a towed vehicle, the turn and brake lamps of the towed vehicle being actuated in response to the sensing by the controller of current or voltage present when select towing vehicle turn and brake lamps are actuated.
    Type: Grant
    Filed: May 29, 1990
    Date of Patent: May 18, 1993
    Assignee: GTE Products Corporation
    Inventor: Frank J. Avellino
  • Patent number: 5212422
    Abstract: A support for a filament or lamp capsule in a lamp having a base and a light-transmissive envelope includes a support ring that is inserted into the base. The ring can be pressed or otherwise secured into the base. The support ring includes at least one pair of tabs that extend radially inwardly. The tabs include mounting holes aligned generally in a direction extending upwardly from the base toward the envelope for receiving and supporting an electrical lead of the filament or lamp capsule. The tabs can be resilient to forcibly engage the lead of the filament or lamp capsule. Two pairs of tabs can be provided to support two leads of the filament or lamp capsule.
    Type: Grant
    Filed: December 30, 1991
    Date of Patent: May 18, 1993
    Assignee: GTE Products Corporation
    Inventors: A. Charles Topel, Jr., Lewis H. Palmer, III, Stephen J. Leadvaro, Peter R. Gagnon, Roy C. Martin
  • Patent number: 5212763
    Abstract: A forced gas electric heater has a serpentine heating element disposed within a cylindrical glass tube. Infrared radiation emanating from the heating element enters the glass tube whereby part of the infrared radiation is directed within the wall of the glass tube to the edge of the glass tube. An infrared sensor is in line of sight with the edge of the glass tube. The infrared sensor senses the hot spot temperature of the heating element and, together with a controller, limits the maximum hot spot temperature of the heating element.
    Type: Grant
    Filed: September 11, 1992
    Date of Patent: May 18, 1993
    Assignee: GTE Products Corporation
    Inventors: Jonathan B. Arold, E. Forrest Decatur, Joan L. Mishou
  • Patent number: 5209689
    Abstract: A method for mounting a filament in a double ended incandescent lamp capsule. A filament assembly, including a filament, filament supports attached to each end of the filament and an external lead connected to each filament support, is located in a tubular lamp envelope. The position of the filament relative to the lamp envelope is determined, and the filament is moved to a predetermined position relative to the lamp envelope, if necessary. Then, the lamp envelope is heated sufficiently to cause the lamp envelope to deform into contact with at least one of the filament supports so as to securely anchor the filament support. The heating of the lamp envelope in regions of the filament supports can be performed simultaneously or at different times. One or both filament supports can be anchored by the tacking process.
    Type: Grant
    Filed: December 27, 1991
    Date of Patent: May 11, 1993
    Assignee: GTE Products Corporation
    Inventors: Robert M. Griffin, Peter R. Gagnon, Stephen J. Leadvaro, Roy C. Martin
  • Patent number: 5210461
    Abstract: An arc discharge lamp having an end-of-life structure and including a light-transmissive envelope having a tubular-shaped main body and a press seal disposed at each end of the main body. An electrode filament having a pair of ends is located in each end of the envelope. Each electrode filament end is in a contiguous relationship with an inside surface of the lamp envelope. When one of the electrode filaments is depleted of electron-emissive material, increased heating of the electrode filament caused by an increase in cathode fall voltage, produces a localized hot spot on the internal surface of the envelope. This localized heating causes a puncture in the lamp envelope and evacuation of the lamp. The introduction of external atmosphere into the lamp extinguishes the arc discharge and renders the lamp inoperable.
    Type: Grant
    Filed: February 18, 1992
    Date of Patent: May 11, 1993
    Assignee: GTE Products Corporation
    Inventors: Robert Y. Pai, Thomas Haraden, Harold L. Hough
  • Patent number: D336963
    Type: Grant
    Filed: April 3, 1991
    Date of Patent: June 29, 1993
    Assignee: GTE Products Corporation
    Inventors: Robert E. Levin, Lieven A. DeWeerdt
  • Patent number: D337389
    Type: Grant
    Filed: April 3, 1991
    Date of Patent: July 13, 1993
    Assignee: GTE Products Corporation
    Inventors: Robert E. Levin, Lieven A. DeWeerdt
  • Patent number: D337988
    Type: Grant
    Filed: June 17, 1991
    Date of Patent: August 3, 1993
    Assignee: GTE Products Corporation
    Inventor: John O. Wright
  • Patent number: D337990
    Type: Grant
    Filed: June 17, 1991
    Date of Patent: August 3, 1993
    Assignee: GTE Products Corporation
    Inventor: John O. Wright