FR1172488A - Electrical discharge device and its cathode - Google Patents

Electrical discharge device and its cathode

Info

Publication number: FR1172488A
Authority: FR; France
Prior art keywords: cathode; discharge device; electrical discharge; electrical; discharge
Prior art date: 1956-04-25
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

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.)

PerkinElmer Inc

Original Assignee

Edgerton Germeshausen and Grier Inc

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.)

1956-04-25

Filing date

1957-04-25

Publication date

1959-02-11

1957-04-25 Application filed by Edgerton Germeshausen and Grier Inc filed Critical Edgerton Germeshausen and Grier Inc

1959-02-11 Application granted granted Critical

1959-02-11 Publication of FR1172488A publication Critical patent/FR1172488A/en

Status Expired legal-status Critical Current

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
- H01J17/066—Cold cathodes

FR1172488D 1956-04-25 1957-04-25 Electrical discharge device and its cathode Expired FR1172488A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US580551A US2937301A (en)	1956-04-25	1956-04-25	Electric-discharge device and cathode

Publications (1)

Publication Number	Publication Date
FR1172488A true FR1172488A (en)	1959-02-11

Family

ID=24321554

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR1172488D Expired FR1172488A (en)	1956-04-25	1957-04-25	Electrical discharge device and its cathode

Country Status (3)

Country	Link
US (1)	US2937301A (en)
FR (1)	FR1172488A (en)
GB (1)	GB848340A (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3091717A (en) *	1957-07-24	1963-05-28	Varian Associates	Cathodes for magnetically-confined glow discharge devices
NL268755A (en) *	1960-10-11
NL287849A (en) *	1960-10-14
NL271024A (en) *	1960-11-04
US3320463A (en) *	1962-07-23	1967-05-16	Gen Electric	Electron discharge tube having an improved electrode mounting structure
US3439210A (en) *	1966-01-03	1969-04-15	Hughes Aircraft Co	Thermionic emission cathode having reduced frontal area and enlarged emission area for ion bombardment environment
GB2194673B (en) *	1986-08-30	1990-10-24	English Electric Valve Co Ltd	Apparatus for forming an electron beam sheet
US6734253B2 (en) *	2002-07-19	2004-05-11	Dow Global Technologies, Inc.	Scratch and mar resistant propylene polymer composition

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US1968839A (en) *	1928-02-24	1934-08-07	Gen Electric Vapor Lamp Co	Low voltage discharge tube
US2249672A (en) *	1936-12-10	1941-07-15	Gen Electric	Discharge device
US2252694A (en) *	1939-06-17	1941-08-19	Electronic Res Corp	Electric discharge electrode
US2572881A (en) *	1946-04-22	1951-10-30	Rothstein Jerome	Thyratron cathode design to prevent cleanup of hydrogen
US2440370A (en) *	1947-01-23	1948-04-27	Air Maze Corp	Multipointed electrode
US2599352A (en) *	1947-03-08	1952-06-03	Texaco Development Corp	Radiation detector
US2512538A (en) *	1949-07-26	1950-06-20	Atomic Energy Commission	Electric discharge device
US2650997A (en) *	1950-12-29	1953-09-01	Chatham Electronics Corp	Heat shielded cathode

1956
- 1956-04-25 US US580551A patent/US2937301A/en not_active Expired - Lifetime
1957
- 1957-04-23 GB GB12930/57A patent/GB848340A/en not_active Expired
- 1957-04-25 FR FR1172488D patent/FR1172488A/en not_active Expired

Also Published As

Publication number	Publication date
GB848340A (en)	1960-09-14
US2937301A (en)	1960-05-17

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