General Electric Company

Bor-es Cipoipari Kutato-fejleszto Vallalat

Budapesti Boripari Vallalat

Istvan Deme

Jon Bennett Jansma

Laszlo Balazs

Gábor Sajó

Katalin Toth

Judit Szigeti

Gyorgy Molnar

Anna Szucs

Dezso David

Peter Rovo

Tamas Karnitscher

Terez Sipos Nee Richter

Lazlo Balasz

Electron emissive compositions comprising a barium neodymium oxide are described. These compositions may be applied to electrodes such that electron emission is facilitated. Methods of manufacturing emissive electrodes comprising a barium neodymium oxide are also described. Various discharge lamps employing such electrodes are described as well.

Emissive electrode materials for electric lamps and methods of making

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/cm. A barrier layer of approximately 0.3 mg/cmor 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 0.44 mg or less, and a warm-up value in the range of approximately 40 to 50 seconds or less, including 30 seconds or less.

Fluorescent lamps having desirable mercury consumption and lumen run-up times

A mercury vapor discharge fluorescent lamp having a barrier layer and a phosphor layer. The barrier layer comprises yttria-coated alumina particles. The barrier layer is preferably at least 11 weight percent yttria. Preferably the yttrium-coated alumina particles are provided in an aqueous suspension and are then substantially separated from the dissolved salts therein before being combined into a coating suspension for coating the lamp.

Fluorescent lamp having improved barrier layer

The invention relates to a method for preserving raw hides, skins and furskins comprising treating the hides, skins and furskins with an aqueous solution containing at least 0.1% by mass of cyanamide and, if desired, one or more members of the group consisting of polyalcohols, fungicides, sodium chloride, buffer systems possessing buffer capacity in acidic media, salts capable of acidic hydrolysis, weak acids and surface active agents. The raw hides, skins and furskins can be stored without of appearance of any sign of deterioration for at least two weeks in humid ambient conditions.

Method for preserving raw hides, skins and furskins

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Budapest, Hungary

Istvan Deme