GB2135821B - Tungsten-halogen electric lamp with permeable means closing an outer envelope - Google Patents
Tungsten-halogen electric lamp with permeable means closing an outer envelopeInfo
- Publication number
- GB2135821B GB2135821B GB08404840A GB8404840A GB2135821B GB 2135821 B GB2135821 B GB 2135821B GB 08404840 A GB08404840 A GB 08404840A GB 8404840 A GB8404840 A GB 8404840A GB 2135821 B GB2135821 B GB 2135821B
- Authority
- GB
- United Kingdom
- Prior art keywords
- tungsten
- electric lamp
- outer envelope
- means closing
- permeable means
- 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
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K1/00—Details
- H01K1/28—Envelopes; Vessels
- H01K1/34—Double wall vessels
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US46984483A | 1983-02-25 | 1983-02-25 |
Publications (3)
Publication Number | Publication Date |
---|---|
GB8404840D0 GB8404840D0 (en) | 1984-03-28 |
GB2135821A GB2135821A (en) | 1984-09-05 |
GB2135821B true GB2135821B (en) | 1986-12-17 |
Family
ID=23865258
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB08404840A Expired GB2135821B (en) | 1983-02-25 | 1984-02-24 | Tungsten-halogen electric lamp with permeable means closing an outer envelope |
Country Status (8)
Country | Link |
---|---|
BE (1) | BE898997A (en) |
BR (1) | BR8400807A (en) |
CA (1) | CA1220505A (en) |
DE (1) | DE3406795A1 (en) |
FR (1) | FR2541823B1 (en) |
GB (1) | GB2135821B (en) |
IT (1) | IT1221748B (en) |
NL (1) | NL8400582A (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3611788C2 (en) * | 1986-04-08 | 1995-07-06 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Electric lamp and process for its manufacture |
DE69604361T2 (en) * | 1995-05-24 | 2000-03-30 | Koninklijke Philips Electronics N.V., Eindhoven | SOCKETED ELECTRIC LAMP |
US6133676A (en) * | 1997-09-10 | 2000-10-17 | Chen; Chun Tsun | Double-enveloped halogen bulb provided with protuberances in the outer surface of the envelope |
EP0903773A3 (en) * | 1997-09-17 | 1999-06-16 | Shanghai Viva Home Improvement Co., Ltd. | Double-enveloped halogen bulb |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE242385C (en) * | ||||
FR823094A (en) * | 1936-09-24 | 1938-01-13 | Luminescent bulb for incandescent electric lamps | |
BE428543A (en) * | 1937-06-12 | |||
NL61940C (en) * | 1941-03-28 | |||
GB1054423A (en) * | 1963-04-22 | |||
GB2062958B (en) * | 1979-11-12 | 1983-12-14 | Thorn Emi Ltd | Sealed beam lamp |
-
1984
- 1984-02-20 BR BR8400807A patent/BR8400807A/en not_active IP Right Cessation
- 1984-02-23 CA CA000448139A patent/CA1220505A/en not_active Expired
- 1984-02-23 IT IT19756/84A patent/IT1221748B/en active
- 1984-02-24 FR FR8402877A patent/FR2541823B1/en not_active Expired
- 1984-02-24 GB GB08404840A patent/GB2135821B/en not_active Expired
- 1984-02-24 BE BE2/60351A patent/BE898997A/en not_active IP Right Cessation
- 1984-02-24 NL NL8400582A patent/NL8400582A/en not_active Application Discontinuation
- 1984-02-24 DE DE19843406795 patent/DE3406795A1/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
GB8404840D0 (en) | 1984-03-28 |
BR8400807A (en) | 1984-10-02 |
BE898997A (en) | 1984-06-18 |
IT1221748B (en) | 1990-07-12 |
GB2135821A (en) | 1984-09-05 |
IT8419756A0 (en) | 1984-02-23 |
FR2541823B1 (en) | 1988-07-22 |
DE3406795A1 (en) | 1984-10-04 |
CA1220505A (en) | 1987-04-14 |
FR2541823A1 (en) | 1984-08-31 |
NL8400582A (en) | 1984-09-17 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19940224 |