Electric lamp subject to high operating temperatures

Details Electric lamp subject to high operating temperatures Electric lamp subject to high operating temperatures

1993-04-21

1996-02-20

Yusko, Donald J.

Electric lamp and discharge devices

With temperature modifier

Using liquids or fluid flow directing means

313 11, 313 30, 313 43, H01J 726, H01J 102

Patent

active

054931681

ABSTRACT:
To prevent corrosion of molybdenum connecting pins or wires extending from elt-sealed ends of high-power lamps, the region immediately adjacent the exit points from the melt-sealed end are cooled by a cooling gas, for example air or an inert gas such as nitrogen. The cooling gas is applied by cooling ducts which are made of metal and, simultaneously, provide for electrical connection of electrical energy to the connecting leads. Cooling gas can be introduced either through terminal pins or rods into the tubular elements, or the tubular elements can be connected, as usual, to the part-solid terminal pins or rods and additional gas connections are passed through the base through the tubular elements to supply cooling gas.

REFERENCES:
patent: 2558357 (1951-06-01), Grimm
patent: 3978361 (1976-08-01), Hiramoto
patent: 3989983 (1976-11-01), Uchino et al.
patent: 4023060 (1977-05-01), Pike et al.
patent: 4290097 (1981-09-01), Block et al.
patent: 4405882 (1983-09-01), Reinsch
patent: 4550269 (1985-10-01), Dixon
patent: 4682071 (1987-07-01), Thorpe
patent: 4695757 (1987-09-01), Ury et al.
patent: 4967330 (1990-10-01), Bell et al.

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