GB1257198A - - Google Patents
Info
- Publication number
- GB1257198A GB1257198A GB1257198DA GB1257198A GB 1257198 A GB1257198 A GB 1257198A GB 1257198D A GB1257198D A GB 1257198DA GB 1257198 A GB1257198 A GB 1257198A
- Authority
- GB
- United Kingdom
- Prior art keywords
- heading
- aug
- july
- gram
- argon
- 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
- H01K1/50—Selection of substances for gas fillings; Specified pressure thereof
Abstract
1,257,198. Electric incandescent lamps. IWASAKI DENKI K.K. 30 July, 1969 [13 Aug., 1968; 21 May, 1969], No. 38243/69. Heading H1F. A tungsten filament lamp of the regenerative cycle type contains an inert gas, preferably nitrogen and/or argon, and a quantity of boron tribromide, preferably from 0À8 Î 10<SP>-7</SP> to 2À0 x 10<SP>-5</SP> gram-molecule per c.c. of bulb volume.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5726068 | 1968-08-13 | ||
| JP3872969 | 1969-05-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1257198A true GB1257198A (en) | 1971-12-15 |
Family
ID=26378017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1257198D Expired GB1257198A (en) | 1968-08-13 | 1969-07-30 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3582703A (en) |
| BE (1) | BE736875A (en) |
| CH (1) | CH512143A (en) |
| DE (1) | DE1938955B2 (en) |
| FR (1) | FR2015570A1 (en) |
| GB (1) | GB1257198A (en) |
| NL (1) | NL142523B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI496974B (en) * | 2011-11-14 | 2015-08-21 | Fixing structure for guard rails abstract of the invention |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3843899A (en) * | 1972-06-28 | 1974-10-22 | Philips Corp | Tungsten-bromine cycle incandescent lamp containing boron |
| US4024425A (en) * | 1974-11-11 | 1977-05-17 | Tokyo Shibaura Electric Co., Ltd. | Metal halide lamps |
| US4238705A (en) * | 1979-09-12 | 1980-12-09 | General Electric Company | Incandescent lamp seal means |
| DE20020148U1 (en) * | 2000-09-18 | 2001-03-22 | Advanced Photonics Tech Ag | Radiation source and radiation arrangement |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL27400C (en) * | 1928-12-18 |
-
1969
- 1969-07-30 GB GB1257198D patent/GB1257198A/en not_active Expired
- 1969-07-31 NL NL696911678A patent/NL142523B/en not_active IP Right Cessation
- 1969-07-31 DE DE19691938955 patent/DE1938955B2/en not_active Withdrawn
- 1969-07-31 BE BE736875D patent/BE736875A/xx unknown
- 1969-07-31 US US846475A patent/US3582703A/en not_active Expired - Lifetime
- 1969-08-08 FR FR6927332A patent/FR2015570A1/fr not_active Withdrawn
- 1969-08-13 CH CH1229969A patent/CH512143A/en not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI496974B (en) * | 2011-11-14 | 2015-08-21 | Fixing structure for guard rails abstract of the invention |
Also Published As
| Publication number | Publication date |
|---|---|
| NL6911678A (en) | 1970-02-17 |
| FR2015570A1 (en) | 1970-04-30 |
| NL142523B (en) | 1974-06-17 |
| BE736875A (en) | 1969-12-31 |
| US3582703A (en) | 1971-06-01 |
| CH512143A (en) | 1971-08-31 |
| DE1938955B2 (en) | 1970-07-09 |
| DE1938955A1 (en) | 1970-07-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |