公开(公告)号：US3580739A

公开(公告)日：1971-05-25

申请号：US3580739D

申请日：1968-01-02

Applicant: SIEMENS AG

Inventor： CIRIACK GUNTER ,  ECKERT GEORG ,  HOFMANN HORST

IPC: H01J9/14 ,  H01J19/30 ,  H01J19/38 ,  C23B5/50

CPC classification number: H01J19/30 ,  H01J2893/0019 ,  H01J2893/002 ,  Y10T428/12042 ,  Y10T428/12146 ,  Y10T428/12361 ,  Y10T428/12812

Abstract: THE INVENTION IS DIRECTED TO ELECTRONIC TUBES WHEREIN A GRID ELECTRODE IS CONSTRUCTED OF ANY ALLOY CONTAINING A ZIRCONIUM OXIDE WHICH MAY BE ADDED EITHER TO THE BASE METAL FORMING THE GRID WIRES IN AMOUNTS OF 0.1 TO 2% BY WEIGHT OR TO A COATING OF ZIRCONIUM IN AMOUNTS OF 10 TO 50% BY WEIGHT WHICH COVERS THE BASE METAL.

公开(公告)号：US3453479A

公开(公告)日：1969-07-01

申请号：US3453479D

申请日：1968-01-02

Applicant: SIEMENS AG

Inventor： CIRIACK GUNTER ,  ECKERT GEORG ,  HOFMANN HORST

IPC: H01J1/48 ,  H01J19/30

CPC classification number: H01J19/30 ,  H01J2893/002