Invention Grant
US4393328A Hot cathode, its production process and electron tube incorporating such
a cathode
失效
热阴极，其生产工艺和电子管结合这样的阴极
- Patent Title: Hot cathode, its production process and electron tube incorporating such a cathode
- Patent Title (中): 热阴极，其生产工艺和电子管结合这样的阴极
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Application No.: US204176Application Date: 1980-11-05
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Publication No.: US4393328APublication Date: 1983-07-12
- Inventor: Arvind Shroff , Pierre Palluel
- Applicant: Arvind Shroff , Pierre Palluel
- Applicant Address: FRX Paris
- Assignee: Thomson-CSF
- Current Assignee: Thomson-CSF
- Current Assignee Address: FRX Paris
- Priority: FRX7927715 19791109
- Main IPC: H01J1/14
- IPC: H01J1/14 ; H01J1/28 ; H01J9/04 ; H01J23/04 ; H01J23/06
Abstract:
The hot cathode, according to the invention, is constituted by a fritted matrix 1 and a heating filament 4, said matrix being formed from a powder mixture 2 of tungsten and another high work function refractory metal and covered with a high work function refractory metal film 3. FIG. 3.
Public/Granted literature
- US4883599A Method for cleansing metal-containing solutions Public/Granted day:1989-11-28
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