GB1161910A - Improvements in Glower Lamps. - Google Patents
Improvements in Glower Lamps.Info
- Publication number
- GB1161910A GB1161910A GB19613/67A GB1961367A GB1161910A GB 1161910 A GB1161910 A GB 1161910A GB 19613/67 A GB19613/67 A GB 19613/67A GB 1961367 A GB1961367 A GB 1961367A GB 1161910 A GB1161910 A GB 1161910A
- Authority
- GB
- United Kingdom
- Prior art keywords
- per cent
- mol per
- temperature
- cooling
- inert atmosphere
- 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
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 abstract 2
- 239000000919 ceramic Substances 0.000 abstract 2
- 238000001816 cooling Methods 0.000 abstract 2
- 238000000034 method Methods 0.000 abstract 2
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 abstract 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 abstract 1
- 239000000292 calcium oxide Substances 0.000 abstract 1
- 238000005868 electrolysis reaction Methods 0.000 abstract 1
- 239000011532 electronic conductor Substances 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 229910052760 oxygen Inorganic materials 0.000 abstract 1
- 239000001301 oxygen Substances 0.000 abstract 1
- -1 oxygen ions Chemical class 0.000 abstract 1
- RUDFQVOCFDJEEF-UHFFFAOYSA-N yttrium(III) oxide Inorganic materials [O-2].[O-2].[O-2].[Y+3].[Y+3] RUDFQVOCFDJEEF-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K3/00—Apparatus or processes adapted to the manufacture, installing, removal, or maintenance of incandescent lamps or parts thereof
- H01K3/02—Manufacture of incandescent bodies
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Resistance Heating (AREA)
Abstract
1,161,910. Ceramic compositions. GENERAL ELECTRIC CO. 28 April, 1967 [31 May, 1966], No. 19613/67. Heading C1J. [Also in Division H1] The element of a Nernst-type lamp which consists of a ceramic body containing 48-93 mol per cent zirconia mixed with 10-20 mol per cent calcium oxide and/or 7-52 mol per cent yttria is subjected to a process which makes it electrically conductive at room temperature, the process comprising the steps of heating the element in an oxygen-free chemically inert atmosphere to a temperature of 1000-1200 C., passing a direct current through the element to heat it further to at least 1600 C., maintaining this temperature for sufficient time to electrolyse the element, and cooling the element in the inert atmosphere. During the electrolysis oxygen ions migrate through the element into the atmosphere so that on cooling the material remains an electronic conductor.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US55402266A | 1966-05-31 | 1966-05-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1161910A true GB1161910A (en) | 1969-08-20 |
Family
ID=24211733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB19613/67A Expired GB1161910A (en) | 1966-05-31 | 1967-04-28 | Improvements in Glower Lamps. |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US3429832A (en) |
| DE (1) | DE1589172B2 (en) |
| GB (1) | GB1161910A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3973155A (en) * | 1975-01-31 | 1976-08-03 | Westinghouse Electric Corporation | Incandescent source of visible radiations |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2170683A (en) * | 1935-04-30 | 1939-08-22 | Gen Electric | Electric incandescent lamp |
-
1966
- 1966-05-31 US US554022A patent/US3429832A/en not_active Expired - Lifetime
-
1967
- 1967-04-28 GB GB19613/67A patent/GB1161910A/en not_active Expired
- 1967-05-17 DE DE19671589172 patent/DE1589172B2/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE1589172A1 (en) | 1970-03-26 |
| DE1589172B2 (en) | 1971-09-09 |
| US3429832A (en) | 1969-02-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |