Electric lamp and discharge devices – With gas or vapor – Having electrode heated by space discharge current
Patent
1981-06-22
1983-11-15
Demeo, Palmer C.
Electric lamp and discharge devices
With gas or vapor
Having electrode heated by space discharge current
313630, 313632, 313633, 313643, 313346R, H01J 6106, H01J 6116
Patent
active
044158351
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: 865367 (1907-09-01), Edison
patent: 2749467 (1956-06-01), Rigden
patent: 2945977 (1960-07-01), Schonherr
patent: 3558964 (1971-01-01), White
patent: 3911309 (1975-10-01), Kummel et al.
patent: 3988629 (1976-10-01), White et al.
patent: 4097762 (1978-06-01), Hilton et al.
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.
Eastin Roger M.
Mishra Amarendra
Speros Dimitri M.
DeMeo Palmer C.
General Electric Company
Jacob Fred
McDevitt John F.
Schlamp Philip L.
LandOfFree
Electron emissive coatings for electric discharge devices does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Electron emissive coatings for electric discharge devices, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electron emissive coatings for electric discharge devices will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-161277