Controlled-porosity dispenser cathode

Details Controlled-porosity dispenser cathode Controlled-porosity dispenser cathode

1977-07-06

1978-07-18

Smith, Alfred E.

Electric lamp and discharge devices

Electrode and shield structures

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

313346R, H01J 114, H01J 1906

Patent

active

041018001

ABSTRACT:
An emissive member for a controlled-porosity, dispenser-type cathode comping a three-component sandwich consisting of: (1) a supporting disc; (2) a layer of nonsintered alkaline earth material on said disc; and (3) a thin perforated foil on said layer. The foil is made of refractory metal and has a uniform pattern of tiny holes through which the active material of the reservoir migrates to coat the surface of the foil, the foil thus serving as the electron-emitting surface of the cathode.

REFERENCES:
patent: 2864028 (1958-12-01), Coppola
patent: 3113246 (1963-12-01), Lemmens et al.
patent: 4019081 (1977-04-01), Buxbaum et al.

Affiliated with

Also associated with

Rating

Controlled-porosity dispenser cathode does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Controlled-porosity dispenser cathode, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Controlled-porosity dispenser cathode will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-341237