FR2179758A1 - - Google Patents
Info
- Publication number
- FR2179758A1 FR2179758A1 FR7310798A FR7310798A FR2179758A1 FR 2179758 A1 FR2179758 A1 FR 2179758A1 FR 7310798 A FR7310798 A FR 7310798A FR 7310798 A FR7310798 A FR 7310798A FR 2179758 A1 FR2179758 A1 FR 2179758A1
- Authority
- FR
- France
- 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.)
- Granted
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
- H01T21/00—Apparatus or processes specially adapted for the manufacture or maintenance of spark gaps or sparking plugs
- H01T21/02—Apparatus or processes specially adapted for the manufacture or maintenance of spark gaps or sparking plugs of sparking plugs
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Spark Plugs (AREA)
- Extrusion Of Metal (AREA)
- Forging (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP47038172A JPS48103445A (en) | 1972-04-14 | 1972-04-14 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2179758A1 true FR2179758A1 (en) | 1973-11-23 |
FR2179758B1 FR2179758B1 (en) | 1977-02-04 |
Family
ID=12517959
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7310798A Expired FR2179758B1 (en) | 1972-04-14 | 1973-03-26 |
Country Status (7)
Country | Link |
---|---|
US (1) | US3857145A (en) |
JP (1) | JPS48103445A (en) |
BE (1) | BE798232A (en) |
DE (1) | DE2238283A1 (en) |
FR (1) | FR2179758B1 (en) |
GB (1) | GB1425126A (en) |
IT (1) | IT983748B (en) |
Families Citing this family (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1138626A (en) * | 1978-12-16 | 1983-01-04 | Gkn Floform Limited | Manufacture of bi-metal electrodes for spark plugs |
US4374450A (en) * | 1979-06-04 | 1983-02-22 | The Bendix Corporation | Method of making an igniter plug with nickel coating on center electrode |
GB2060454B (en) | 1979-10-15 | 1983-09-14 | Champion Spark Plug Co | Production of spark plug electrodes |
DE2948511A1 (en) * | 1979-12-01 | 1981-06-04 | G. Rau GmbH & Co, 7530 Pforzheim | Glowing plug central electrode - mfd. by deep drawing nickel disc around welded copper wire |
US4384234A (en) * | 1979-12-07 | 1983-05-17 | Texas Instruments Incorporated | Spark plug with heat conducting sleeve for center electrode |
US4575343A (en) * | 1980-04-09 | 1986-03-11 | The National Machinery Company | Bimetal electrode and method of making same |
GB2076706B (en) | 1980-05-30 | 1984-06-27 | Champion Spark Plug Co | Producing a composite center electrode |
US4526551A (en) * | 1980-05-30 | 1985-07-02 | Champion Spark Plug Company | Production of electrodes |
EP0044764A1 (en) * | 1980-07-17 | 1982-01-27 | Bendix Autolite Corporation | Method for manufacturing a center electrode for use in a spark plug |
GB2088753B (en) * | 1980-12-10 | 1984-02-01 | Gkn Floform Ltd | Spark plug electrode |
US4410309A (en) * | 1981-01-16 | 1983-10-18 | G. Rau Gmbh & Co. | Method of making a spark-plug center electrode |
US4695759A (en) * | 1981-10-29 | 1987-09-22 | Champion Spark Plug Company | Method for producing a composite center electrode and an electrode |
US4606730A (en) * | 1983-09-21 | 1986-08-19 | The National Machinery Company | Bimetal electrodes for spark plugs or the like and method of making same |
US4585421A (en) * | 1983-11-23 | 1986-04-29 | The National Machinery Company | Method of making copper-clad bimetal electrodes for spark plugs |
US4684352A (en) * | 1985-03-11 | 1987-08-04 | Champion Spark Plug Company | Method for producing a composite spark plug center electrode |
US4808135A (en) * | 1986-07-29 | 1989-02-28 | Ngk Spark Plug Co., Ltd. | Center electrode structure for spark plug |
US4725254A (en) * | 1986-11-24 | 1988-02-16 | Allied Corporation | Method for manufacturing a center electrode for a spark plug |
US4705486A (en) * | 1986-11-24 | 1987-11-10 | Allied Corporation | Method for manufacturing a center electrode for a spark plug |
JPH0192092U (en) * | 1987-12-10 | 1989-06-16 | ||
DE3918278A1 (en) * | 1989-06-05 | 1990-12-06 | Rau Gmbh G | MEDIUM ELECTRODE FOR SPARK PLUGS AND INTERNAL COMBUSTION ENGINES |
US5973443A (en) * | 1996-05-06 | 1999-10-26 | Alliedsignal Inc. | Spark plug electrode tip for internal combustion engine |
US5980345A (en) * | 1998-07-13 | 1999-11-09 | Alliedsignal Inc. | Spark plug electrode having iridium based sphere and method for manufacturing same |
US6614145B2 (en) | 2001-08-21 | 2003-09-02 | Federal-Mogul World Wide, Inc. | Two-piece swaged center electrode assembly |
JP4220218B2 (en) * | 2002-10-25 | 2009-02-04 | 株式会社デンソー | Manufacturing method of center electrode for spark plug |
JP4672732B2 (en) * | 2006-03-14 | 2011-04-20 | 日本特殊陶業株式会社 | Spark plug manufacturing method and spark plug |
NO332551B1 (en) | 2009-06-30 | 2012-10-22 | Hamworthy Gas Systems As | Method and apparatus for storing and transporting liquefied petroleum gas |
RU2498469C1 (en) * | 2012-06-01 | 2013-11-10 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Уфимский государственный авиационный технический университет" | Method for manufacture of bimetal central electrode for spark plug of combustion engine |
JP5639118B2 (en) | 2012-06-05 | 2014-12-10 | 日本特殊陶業株式会社 | Manufacturing method of spark plug |
DE102014223746A1 (en) * | 2014-11-20 | 2016-05-25 | Robert Bosch Gmbh | Spark plug and method of making a spark plug |
DE102018222331A1 (en) * | 2018-12-19 | 2020-06-25 | Robert Bosch Gmbh | Spark plug electrode with diffusion layer between the electrode core and the electrode jacket as well as the manufacturing process |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH322355A (en) * | 1953-06-06 | 1957-06-15 | Bosch Gmbh Robert | Method and apparatus for manufacturing a center electrode part for spark plugs |
US3010196A (en) * | 1957-09-25 | 1961-11-28 | Gen Motors Corp | Method for making composite metal members |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB838682A (en) * | 1957-09-25 | 1960-06-22 | Gen Motors Corp | Improvements in or relating to a method of making rod-shaped composite spark plug electrodes |
US2955222A (en) * | 1958-06-25 | 1960-10-04 | Bosch Gmbh Robert | Center electrode structure for spark plugs and process for making the same |
US3144576A (en) * | 1962-02-14 | 1964-08-11 | Hagmaier Eugen | Spark plug and method of manufacture |
US3548472A (en) * | 1967-11-15 | 1970-12-22 | Hitachi Ltd | Ignition plug and method for manufacturing a center electrode for the same |
-
1972
- 1972-04-14 JP JP47038172A patent/JPS48103445A/ja active Pending
- 1972-08-01 US US00277044A patent/US3857145A/en not_active Expired - Lifetime
- 1972-08-03 DE DE2238283A patent/DE2238283A1/en active Pending
-
1973
- 1973-03-26 FR FR7310798A patent/FR2179758B1/fr not_active Expired
- 1973-04-10 IT IT22804/73A patent/IT983748B/en active
- 1973-04-13 GB GB1785273A patent/GB1425126A/en not_active Expired
- 1973-04-13 BE BE130031A patent/BE798232A/en unknown
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH322355A (en) * | 1953-06-06 | 1957-06-15 | Bosch Gmbh Robert | Method and apparatus for manufacturing a center electrode part for spark plugs |
US3010196A (en) * | 1957-09-25 | 1961-11-28 | Gen Motors Corp | Method for making composite metal members |
Also Published As
Publication number | Publication date |
---|---|
BE798232A (en) | 1973-07-31 |
DE2238283A1 (en) | 1973-10-25 |
GB1425126A (en) | 1976-02-18 |
US3857145A (en) | 1974-12-31 |
IT983748B (en) | 1974-11-11 |
FR2179758B1 (en) | 1977-02-04 |
JPS48103445A (en) | 1973-12-25 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |