NL153370B - MICROWAVE IN WHICH THE ACTIVATED PART OF THE CATHODE IS ENCLOSED BETWEEN RINGS WHOSE SURFACE CONTACTS THERMAL EMISSIONS. - Google Patents

MICROWAVE IN WHICH THE ACTIVATED PART OF THE CATHODE IS ENCLOSED BETWEEN RINGS WHOSE SURFACE CONTACTS THERMAL EMISSIONS.

Info

Publication number
NL153370B
NL153370B NL676714947A NL6714947A NL153370B NL 153370 B NL153370 B NL 153370B NL 676714947 A NL676714947 A NL 676714947A NL 6714947 A NL6714947 A NL 6714947A NL 153370 B NL153370 B NL 153370B
Authority
NL
Netherlands
Prior art keywords
microwave
cathode
enclosed
whose surface
surface contacts
Prior art date
Application number
NL676714947A
Other languages
Dutch (nl)
Other versions
NL6714947A (en
Inventor
Johannes Antonius Van De Goor
Original Assignee
Philips Nv
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Philips Nv filed Critical Philips Nv
Priority to NL676714947A priority Critical patent/NL153370B/en
Priority to DE19681803348 priority patent/DE1803348A1/en
Priority to US770668A priority patent/US3555334A/en
Priority to GB51710/68A priority patent/GB1189940A/en
Priority to FR1591244D priority patent/FR1591244A/fr
Publication of NL6714947A publication Critical patent/NL6714947A/xx
Publication of NL153370B publication Critical patent/NL153370B/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J23/00—Details of transit-time tubes of the types covered by group H01J25/00
    • H01J23/02—Electrodes; Magnetic control means; Screens
    • H01J23/04—Cathodes
    • H01J23/05—Cathodes having a cylindrical emissive surface, e.g. cathodes for magnetrons
NL676714947A 1967-11-03 1967-11-03 MICROWAVE IN WHICH THE ACTIVATED PART OF THE CATHODE IS ENCLOSED BETWEEN RINGS WHOSE SURFACE CONTACTS THERMAL EMISSIONS. NL153370B (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
NL676714947A NL153370B (en) 1967-11-03 1967-11-03 MICROWAVE IN WHICH THE ACTIVATED PART OF THE CATHODE IS ENCLOSED BETWEEN RINGS WHOSE SURFACE CONTACTS THERMAL EMISSIONS.
DE19681803348 DE1803348A1 (en) 1967-11-03 1968-10-16 Magnetron in which the activated part of the cathode is enclosed between rings, the surface of which prevents thermal emission
US770668A US3555334A (en) 1967-11-03 1968-10-25 Cathode with graphite end shields
GB51710/68A GB1189940A (en) 1967-11-03 1968-10-31 Magnetron Cathodes
FR1591244D FR1591244A (en) 1967-11-03 1968-11-04

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL676714947A NL153370B (en) 1967-11-03 1967-11-03 MICROWAVE IN WHICH THE ACTIVATED PART OF THE CATHODE IS ENCLOSED BETWEEN RINGS WHOSE SURFACE CONTACTS THERMAL EMISSIONS.

Publications (2)

Publication Number Publication Date
NL6714947A NL6714947A (en) 1969-05-06
NL153370B true NL153370B (en) 1977-05-16

Family

ID=19801629

Family Applications (1)

Application Number Title Priority Date Filing Date
NL676714947A NL153370B (en) 1967-11-03 1967-11-03 MICROWAVE IN WHICH THE ACTIVATED PART OF THE CATHODE IS ENCLOSED BETWEEN RINGS WHOSE SURFACE CONTACTS THERMAL EMISSIONS.

Country Status (5)

Country Link
US (1) US3555334A (en)
DE (1) DE1803348A1 (en)
FR (1) FR1591244A (en)
GB (1) GB1189940A (en)
NL (1) NL153370B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2166562A5 (en) * 1971-12-30 1973-08-17 Hitachi Ltd
JPS50129763A (en) * 1974-04-02 1975-10-14
US4349424A (en) * 1981-05-15 1982-09-14 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Ion sputter textured graphite

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1897933A (en) * 1928-08-02 1933-02-14 Peoples Gas By Products Corp Electrode for electron discharge tubes and method of forming the same
US2683671A (en) * 1952-07-17 1954-07-13 Westinghouse Electric Corp Low primary and secondary electron emission surface
US3308329A (en) * 1962-11-23 1967-03-07 Litton Industries Inc Thermionic emissive cathode with end structure for emissive suppression

Also Published As

Publication number Publication date
FR1591244A (en) 1970-04-27
NL6714947A (en) 1969-05-06
DE1803348A1 (en) 1969-06-19
GB1189940A (en) 1970-04-29
US3555334A (en) 1971-01-12

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Legal Events

Date Code Title Description
V1 Lapsed because of non-payment of the annual fee
NL80 Abbreviated name of patent owner mentioned of already nullified patent

Owner name: PHILIPS