FR810701A - Steam discharge tube surrounded by a vacuum jacket - Google Patents

Steam discharge tube surrounded by a vacuum jacket

Info

Publication number: FR810701A
Authority: FR; France
Prior art keywords: discharge tube; steam discharge; vacuum jacket; tube surrounded; surrounded
Prior art date: 1935-09-23
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.)

Koninklijke Philips NV

Original Assignee

Philips Gloeilampenfabrieken 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.)

1935-09-23

Filing date

1936-09-21

Publication date

1937-03-27

1936-09-21 Application filed by Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV

1937-03-27 Application granted granted Critical

1937-03-27 Publication of FR810701A publication Critical patent/FR810701A/en

Status Expired legal-status Critical Current

Classifications

- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/30—Vessels; Containers
- H01J61/34—Double-wall vessels or containers

FR810701D 1935-09-23 1936-09-21 Steam discharge tube surrounded by a vacuum jacket Expired FR810701A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DEN38644D DE649006C (en)	1935-09-23	1935-09-23	Discharge tubes containing vapor, surrounded by an evacuated cover, in particular for emitting light beams

Publications (1)

Publication Number	Publication Date
FR810701A true FR810701A (en)	1937-03-27

Family

ID=6539294

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR810701D Expired FR810701A (en)	1935-09-23	1936-09-21	Steam discharge tube surrounded by a vacuum jacket

Country Status (6)

Country	Link
US (1)	US2087745A (en)
BE (1)	BE417554A (en)
DE (1)	DE649006C (en)
FR (1)	FR810701A (en)
GB (1)	GB457266A (en)
NL (1)	NL46541C (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
BE535143A (en) *	1954-01-27
CA923959A (en) *	1970-02-28	1973-04-03	N.V. Philips Gloeilampenfabrieken	Oblong discharge lamp
US5576598A (en) *	1995-08-31	1996-11-19	Osram Sylvania Inc.	Lamp with glass sleeve and method of making same

1935
- 1935-09-23 DE DEN38644D patent/DE649006C/en not_active Expired
1936
- 1936-07-23 GB GB20442/36A patent/GB457266A/en not_active Expired
- 1936-09-21 BE BE417554D patent/BE417554A/xx unknown
- 1936-09-21 FR FR810701D patent/FR810701A/en not_active Expired
- 1936-09-21 US US101823A patent/US2087745A/en not_active Expired - Lifetime
- 1936-09-22 NL NL79330A patent/NL46541C/xx active

Also Published As

Publication number	Publication date
DE649006C (en)	1937-08-16
US2087745A (en)	1937-07-20
BE417554A (en)	1936-10-31
NL46541C (en)	1939-08-15
GB457266A (en)	1936-11-24

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