GB490048A - Improvements in spark plugs - Google Patents
Improvements in spark plugsInfo
- Publication number
- GB490048A GB490048A GB539/37A GB53937A GB490048A GB 490048 A GB490048 A GB 490048A GB 539/37 A GB539/37 A GB 539/37A GB 53937 A GB53937 A GB 53937A GB 490048 A GB490048 A GB 490048A
- Authority
- GB
- United Kingdom
- Prior art keywords
- jan
- spark plugs
- plugs
- hastings
- phenolformaldehyde
- 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
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T13/00—Sparking plugs
- H01T13/52—Sparking plugs characterised by a discharge along a surface
Landscapes
- Spark Plugs (AREA)
Abstract
490,048. Sparking-plugs. HASTINGS, JUN., A. C. Jan. 7, 1937, No. 539. Convention date, Jan. 16, 1936. [Class 7 (iv)] The insulation 12 consists of a tube of quartz, heat - resistant glass or porcelain of uniform thickness and diameter and with flat ends, one of which is flush with ends of the casing 14 and electrode 10. The projecting end is encased in mouldable insulating- material 16 such as a phenolformaldehyde product. Cooling openings 38 may be provided. According to the Specification as open to inspection under Sect. 91 tapering surfaces may be provided on and in the insulator. This subject - matter does not appear in the Specification as accepted.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US490048XA | 1936-01-16 | 1936-01-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB490048A true GB490048A (en) | 1938-08-08 |
Family
ID=21957584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB539/37A Expired GB490048A (en) | 1936-01-16 | 1937-01-07 | Improvements in spark plugs |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB490048A (en) |
-
1937
- 1937-01-07 GB GB539/37A patent/GB490048A/en not_active Expired
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