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
Application number
GB1349770A
Other languages
English (en)
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Publication of GB1257417A publication Critical patent/GB1257417A/en
Expired legal-status Critical Current

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)
GB1349770A 1970-03-20 1970-03-20 Expired GB1257417A (fr)

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 (fr) 1971-12-15

Family

ID=26249812

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1349770A Expired GB1257417A (fr) 1970-03-20 1970-03-20

Country Status (7)

Country Link
US (1) US3683138A (fr)
BE (1) BE756372A (fr)
CH (1) CH517370A (fr)
DE (1) DE2045173C3 (fr)
FR (1) FR2083792A5 (fr)
GB (1) GB1257417A (fr)
NL (1) NL7103703A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL241567A (fr) * 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

Cited By (1)

* Cited by examiner, † Cited by third party
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
NL7103703A (fr) 1971-09-22
FR2083792A5 (fr) 1971-12-17
US3683138A (en) 1972-08-08
CH517370A (de) 1971-12-31
DE2045173A1 (de) 1971-10-07
BE756372A (fr) 1971-03-01
DE2045173B2 (de) 1979-06-07
DE2045173C3 (de) 1980-02-14

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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