DE239085C - - Google Patents
Info
- Publication number
- DE239085C DE239085C DENDAT239085D DE239085DA DE239085C DE 239085 C DE239085 C DE 239085C DE NDAT239085 D DENDAT239085 D DE NDAT239085D DE 239085D A DE239085D A DE 239085DA DE 239085 C DE239085 C DE 239085C
- Authority
- DE
- Germany
- Prior art keywords
- resistance
- thread
- spark
- circuit
- switched
- 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.)
- Active
Links
- 238000005259 measurement Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims 2
- 230000000284 resting effect Effects 0.000 claims 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 2
- 229910052753 mercury Inorganic materials 0.000 description 2
- 238000007654 immersion Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 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
- H01K3/30—Repairing or regenerating used or defective lamps
- H01K3/305—Testing of incandescent lamps
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE239085C true DE239085C (enrdf_load_stackoverflow) |
Family
ID=498557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT239085D Active DE239085C (enrdf_load_stackoverflow) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE239085C (enrdf_load_stackoverflow) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2438875A (en) * | 1941-11-27 | 1948-03-30 | Offner Franklin | Electrical treatment apparatus and method of control |
| US2492459A (en) * | 1944-11-03 | 1949-12-27 | Phillips Petroleum Co | Blasting cap circuit tester |
| DE4034962C1 (en) * | 1990-11-02 | 1992-06-04 | Rainer 8027 Neuried De Pippig | Quality control testing procedure for incandescent lamps - subjecting bulb to acceleration and measuring resultant change in resistance of filament |
-
0
- DE DENDAT239085D patent/DE239085C/de active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2438875A (en) * | 1941-11-27 | 1948-03-30 | Offner Franklin | Electrical treatment apparatus and method of control |
| US2492459A (en) * | 1944-11-03 | 1949-12-27 | Phillips Petroleum Co | Blasting cap circuit tester |
| DE4034962C1 (en) * | 1990-11-02 | 1992-06-04 | Rainer 8027 Neuried De Pippig | Quality control testing procedure for incandescent lamps - subjecting bulb to acceleration and measuring resultant change in resistance of filament |
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