FR793794A - Improvements to cathode ray tubes for television or oscillography - Google Patents

Improvements to cathode ray tubes for television or oscillography

Info

Publication number: FR793794A
Authority: FR; France
Prior art keywords: oscillography; television; cathode ray; ray tubes; tubes
Prior art date: 1934-08-30
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.)

Marconis Wireless Telegraph Co Ltd

BAE Systems Electronics Ltd

Original Assignee

Marconis Wireless Telegraph Co Ltd

Marconi Co Ltd

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.)

1934-08-30

Filing date

1935-08-14

Publication date

1936-01-31

1935-08-14 Application filed by Marconis Wireless Telegraph Co Ltd, Marconi Co Ltd filed Critical Marconis Wireless Telegraph Co Ltd

1936-01-31 Application granted granted Critical

1936-01-31 Publication of FR793794A publication Critical patent/FR793794A/en

Status Expired legal-status Critical Current

Classifications

- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/46—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
- H01J29/48—Electron guns
- H01J29/488—Schematic arrangements of the electrodes for beam forming; Place and form of the elecrodes

FR793794D 1934-08-30 1935-08-14 Improvements to cathode ray tubes for television or oscillography Expired FR793794A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
GB25023/34A GB443730A (en)	1934-08-30	1934-08-30	Improvements in or relating to cathode ray tubes suitable for use for television and similar oscillograph purposes

Publications (1)

Publication Number	Publication Date
FR793794A true FR793794A (en)	1936-01-31

Family

ID=10220965

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR793794D Expired FR793794A (en)	1934-08-30	1935-08-14	Improvements to cathode ray tubes for television or oscillography

Country Status (4)

Country	Link
US (1)	US2153223A (en)
BE (1)	BE410992A (en)
FR (1)	FR793794A (en)
GB (1)	GB443730A (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2429824A (en) *	1943-10-08	1947-10-28	Du Mont Allen B Lab Inc	Gun structure for cathode-ray tubes
US2818519A (en) *	1953-11-13	1957-12-31	Telefunken Gmbh	Cathode-ray tube
US2877369A (en) *	1955-06-02	1959-03-10	Rca Corp	Electron beam tube
US2808527A (en) *	1955-11-22	1957-10-01	Gen Electric	Cathode support strap
US3317981A (en) *	1963-11-18	1967-05-09	Sylvania Electric Prod	Expanding hollow plastic posts on opposite sides of electrode apertures for gripping electrodes
DE3407434A1 (en) *	1984-02-29	1985-08-29	Siemens AG, 1000 Berlin und 8000 München	RADIATOR GENERATOR SYSTEM FOR ELECTRONIC TUBES, IN PARTICULAR WALKER TUBES
US5000215A (en) *	1988-04-27	1991-03-19	Phillips Edwin D	Bellows seal for valves and the like
US5851476A (en) *	1996-05-17	1998-12-22	Miner Enterprises, Inc.	Method of manufacturing a bellowed seal

0
- BE BE410992D patent/BE410992A/xx unknown
1934
- 1934-08-30 GB GB25023/34A patent/GB443730A/en not_active Expired
1935
- 1935-08-14 FR FR793794D patent/FR793794A/en not_active Expired
- 1935-08-23 US US37462A patent/US2153223A/en not_active Expired - Lifetime

Also Published As

Publication number	Publication date
US2153223A (en)	1939-04-04
BE410992A (en)
GB443730A (en)	1936-03-02

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