FR841997A - Cathode for electron tubes - Google Patents

Cathode for electron tubes

Info

Publication number
FR841997A
FR841997A FR841997DA FR841997A FR 841997 A FR841997 A FR 841997A FR 841997D A FR841997D A FR 841997DA FR 841997 A FR841997 A FR 841997A
Authority
FR
France
Prior art keywords
cathode
electron tubes
tubes
electron
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CBS Corp
Original Assignee
Westinghouse Electric and Manufacturing Co
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 Westinghouse Electric and Manufacturing Co filed Critical Westinghouse Electric and Manufacturing Co
Application granted granted Critical
Publication of FR841997A publication Critical patent/FR841997A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J17/00—Gas-filled discharge tubes with solid cathode
    • H01J17/02—Details
    • H01J17/04—Electrodes; Screens
    • H01J17/06—Cathodes
FR841997D 1937-09-16 1938-08-11 Cathode for electron tubes Expired FR841997A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US164147A US2210674A (en) 1937-09-16 1937-09-16 Cathode for electronic tubes

Publications (1)

Publication Number Publication Date
FR841997A true FR841997A (en) 1939-06-02

Family

ID=22593180

Family Applications (1)

Application Number Title Priority Date Filing Date
FR841997D Expired FR841997A (en) 1937-09-16 1938-08-11 Cathode for electron tubes

Country Status (4)

Country Link
US (1) US2210674A (en)
FR (1) FR841997A (en)
GB (1) GB505951A (en)
NL (1) NL50961C (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2495831A (en) * 1947-09-11 1950-01-31 Hartford Nat Bank & Trust Co Electric discharge tube comprising a liquid cathode and a capacitative ignition electrode provided therein
US5170091A (en) * 1990-12-10 1992-12-08 Ultraviolet Energy Generators, Inc. Linear ultraviolet flash lamp with self-replenishing cathode

Also Published As

Publication number Publication date
GB505951A (en) 1939-05-19
NL50961C (en)
US2210674A (en) 1940-08-06

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