Impregnated pellet for a cathode structure and method of produci

Details Impregnated pellet for a cathode structure and method of produci Impregnated pellet for a cathode structure and method of produci

1993-06-25

1995-09-19

Brinich, Stephen

Electric lamp and discharge devices

Electrode and shield structures

Cathodes containing and/or coated with electron emissive...

313346DC, H01J 114

Patent

active

054518318

ABSTRACT:
An impregnated pellet for a cathode structure according to the present invention is produced by forming a plurality of voids by arranging a plurality of metal rods within a cylinder of heat-resisting metal open at both ends thereof, impregnating the voids with electron emission material, thereby to prepare a rod-shaped pellet base, cutting the rod-shaped pellet base into respective impregnated pellets of a predetermined thickness, and finishing the cut surfaces of the pellets by vibration and tilting operation of working plate. The impregrate pellets can be extensively applied to a cathode-ray tube, an electron tube and the like, which require high current density.

REFERENCES:
patent: 2958798 (1960-11-01), Anton
patent: 3753025 (1973-08-01), Van Stratum et al.
patent: 4031425 (1977-06-01), Ziegler et al.
patent: 4310603 (1982-01-01), Falce
patent: 4916356 (1990-04-01), Ahern et al.

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