GB1257417A - - Google Patents
Info
- Publication number
- GB1257417A GB1257417A GB1349770A GB1257417DA GB1257417A GB 1257417 A GB1257417 A GB 1257417A GB 1349770 A GB1349770 A GB 1349770A GB 1257417D A GB1257417D A GB 1257417DA GB 1257417 A GB1257417 A GB 1257417A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mixture
- vacuum switch
- metal
- contact
- zrc
- 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
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/02—Contacts characterised by the material thereof
- H01H1/0203—Contacts characterised by the material thereof specially adapted for vacuum switches
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/02—Contacts characterised by the material thereof
- H01H1/021—Composite material
- H01H1/023—Composite material having a noble metal as the basic material
- H01H1/0233—Composite material having a noble metal as the basic material and containing carbides
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/02—Contacts characterised by the material thereof
- H01H1/021—Composite material
- H01H1/027—Composite material containing carbon particles or fibres
Landscapes
- Contacts (AREA)
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
- Manufacture Of Switches (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1349770 | 1970-03-20 | ||
US2339270A | 1970-03-27 | 1970-03-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1257417A true GB1257417A (ko) | 1971-12-15 |
Family
ID=26249812
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1349770A Expired GB1257417A (ko) | 1970-03-20 | 1970-03-20 |
Country Status (7)
Country | Link |
---|---|
US (1) | US3683138A (ko) |
BE (1) | BE756372A (ko) |
CH (1) | CH517370A (ko) |
DE (1) | DE2045173C3 (ko) |
FR (1) | FR2083792A5 (ko) |
GB (1) | GB1257417A (ko) |
NL (1) | NL7103703A (ko) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2143595A (en) * | 1983-07-18 | 1985-02-13 | Bearing Technology Limited | Plastics bearing |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3996437A (en) * | 1973-12-03 | 1976-12-07 | Cutler-Hammer, Inc. | Vacuum contactor for motor control and method of making |
US3997748A (en) * | 1975-06-23 | 1976-12-14 | General Electric Company | Vacuum interrupter with primary electrode surrounded by high dielectric strength shield |
GB2050060B (en) * | 1979-05-22 | 1983-05-18 | Tokyo Shibaura Electric Co | Vacuum switches |
JPS579019A (en) * | 1980-06-18 | 1982-01-18 | Hitachi Ltd | Electrode for vacuum breaker |
US4686338A (en) * | 1984-02-25 | 1987-08-11 | Kabushiki Kaisha Meidensha | Contact electrode material for vacuum interrupter and method of manufacturing the same |
DE3428276A1 (de) * | 1984-08-01 | 1986-02-06 | Doduco KG Dr. Eugen Dürrwächter, 7530 Pforzheim | Werkstoff fuer elektrische kontakte auf der basis von silber mit wolframkarbid und verfahren zu seiner herstellung |
US4940862A (en) * | 1989-10-26 | 1990-07-10 | Westinghouse Electric Corp. | Vacuum interrupter with improved vapor shield for gas adsorption |
JP2778826B2 (ja) * | 1990-11-28 | 1998-07-23 | 株式会社東芝 | 真空バルブ用接点材料 |
JPH09161628A (ja) * | 1995-12-13 | 1997-06-20 | Shibafu Eng Kk | 真空バルブ用接点材料及びその製造方法 |
JP3598195B2 (ja) * | 1997-03-07 | 2004-12-08 | 芝府エンジニアリング株式会社 | 接点材料 |
JP3773644B2 (ja) * | 1998-01-06 | 2006-05-10 | 芝府エンジニアリング株式会社 | 接点材料 |
TW200710905A (en) * | 2005-07-07 | 2007-03-16 | Hitachi Ltd | Electrical contacts for vacuum circuit breakers and methods of manufacturing the same |
US20100018843A1 (en) * | 2008-07-24 | 2010-01-28 | General Electric Company | Low work function electrical component |
US10468205B2 (en) | 2016-12-13 | 2019-11-05 | Eaton Intelligent Power Limited | Electrical contact alloy for vacuum contactors |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL241567A (ko) * | 1958-07-24 | |||
US3014110A (en) * | 1959-10-29 | 1961-12-19 | Gen Electric | Alternating current vacuum circuit interrupter |
US3254189A (en) * | 1961-05-15 | 1966-05-31 | Westinghouse Electric Corp | Electrical contact members having a plurality of refractory metal fibers embedded therein |
GB1079013A (en) * | 1964-04-21 | 1967-08-09 | English Electric Co Ltd | Improvements in or relating to contacts and electrodes |
-
1970
- 1970-03-20 GB GB1349770A patent/GB1257417A/en not_active Expired
- 1970-03-27 US US23392A patent/US3683138A/en not_active Expired - Lifetime
- 1970-09-08 FR FR7032539A patent/FR2083792A5/fr not_active Expired
- 1970-09-12 DE DE2045173A patent/DE2045173C3/de not_active Expired
- 1970-09-18 BE BE756372D patent/BE756372A/xx not_active IP Right Cessation
- 1970-09-29 CH CH1440270A patent/CH517370A/de not_active IP Right Cessation
-
1971
- 1971-03-19 NL NL7103703A patent/NL7103703A/xx unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2143595A (en) * | 1983-07-18 | 1985-02-13 | Bearing Technology Limited | Plastics bearing |
Also Published As
Publication number | Publication date |
---|---|
DE2045173B2 (de) | 1979-06-07 |
FR2083792A5 (ko) | 1971-12-17 |
BE756372A (fr) | 1971-03-01 |
CH517370A (de) | 1971-12-31 |
US3683138A (en) | 1972-08-08 |
DE2045173C3 (de) | 1980-02-14 |
DE2045173A1 (de) | 1971-10-07 |
NL7103703A (ko) | 1971-09-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
435 | Patent endorsed 'licences of right' on the date specified (sect. 35/1949) | ||
PE20 | Patent expired after termination of 20 years |