GB725019A - - Google Patents
Info
- Publication number
- GB725019A GB725019A GB725019DA GB725019A GB 725019 A GB725019 A GB 725019A GB 725019D A GB725019D A GB 725019DA GB 725019 A GB725019 A GB 725019A
- Authority
- GB
- United Kingdom
- Prior art keywords
- plug
- discharge
- coating
- voltage
- insulator
- 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
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- Spark Plugs (AREA)
Abstract
725,019. Sparking plugs. GENERAL MOTORS CORPORATION. April 23, 1953 [May 10, 1952], No. 11163/53. Class 7 (4). In a method of treating a low-tension sparking plug in order that it will function at the desired voltage, the discharge path of the insulator 38 is, firstly, provided with an electrically conductive coating 54, such as graphite or carbon black, which is removable by an electric discharge and, secondly, subject to such discharge by the application of a voltage. Construction. The plug is the same as that described in Specification 724,842. Conditioning process. The coating 54 is either brushed or smeared on to the insulator or applied in the form of an emulsion, the liquid being subsequently evaporated. Electric discharges are then applied across the plug as described in the above Specification although when using a graphite coating the initial discharge is at a lower voltage than that at which the plug will normally operate.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB725019A true GB725019A (en) |
Family
ID=1751138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB725019D Active GB725019A (en) |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB725019A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2255590A (en) * | 1991-05-14 | 1992-11-11 | Ngk Spark Plug Co | An igniter plug. |
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0
- GB GB725019D patent/GB725019A/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2255590A (en) * | 1991-05-14 | 1992-11-11 | Ngk Spark Plug Co | An igniter plug. |
| GB2255590B (en) * | 1991-05-14 | 1994-08-03 | Ngk Spark Plug Co | An igniter plug |
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