Method of preparing electron emissive coatings for electric disc

Details Method of preparing electron emissive coatings for electric disc Method of preparing electron emissive coatings for electric disc

1983-06-13

1984-12-11

Ramsey, Kenneth J.

Electric lamp or space discharge component or device manufacturi

Process

Electrode making

H01J 904

Patent

active

044875894

ABSTRACT:
An electric discharge type device is described having electrode means which include a refractory metal substrate having sintered thereon an open porous coating of refractory metal particles at a thickness up to about 1 millimeter thickness with electron emissive material being disposed in the pores of said sintered refractory metal coating. Representative electric discharge devices having said improved electrode means include discharge type electric lamps and photographic flash tubes wherein the electrode members have an elongated shaped body which is terminated at one end to provide more surface area for the coatings sintered thereon. Various electron emissive materials can be employed for impregnation of the open porous coating of refractory metal particles by such conventional techniques as dipping or spraying.

REFERENCES:
patent: 2749467 (1956-06-01), Rigden
patent: 3238596 (1966-03-01), Rich et al.
patent: 3558964 (1971-01-01), White
patent: 3911309 (1975-10-01), Kummel
patent: 3988629 (1976-10-01), White et al.
patent: 4097762 (1978-06-01), Hilton et al.
patent: 4123685 (1978-10-01), Bhalla
patent: 4152620 (1979-05-01), Bhalla
patent: 4250429 (1981-02-01), Lersmacher et al.
patent: 4275330 (1981-06-01), Cho et al.
patent: 4303848 (1981-12-01), Shimizu et al.
patent: 4310773 (1982-01-01), Zukowski et al.

Affiliated with

Also associated with

Rating

Method of preparing electron emissive coatings for electric disc does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of preparing electron emissive coatings for electric disc, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of preparing electron emissive coatings for electric disc will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1461370