BE729723A - - Google Patents
Info
- Publication number
- BE729723A BE729723A BE729723DA BE729723A BE 729723 A BE729723 A BE 729723A BE 729723D A BE729723D A BE 729723DA BE 729723 A BE729723 A BE 729723A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/668—Means for obtaining or monitoring the vacuum
- H01H33/6683—Means for obtaining or monitoring the vacuum by gettering
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US71419768A | 1968-03-19 | 1968-03-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE729723A true BE729723A (en) | 1969-08-18 |
Family
ID=24869104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE729723D BE729723A (en) | 1968-03-19 | 1969-03-11 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3592987A (en) |
| BE (1) | BE729723A (en) |
| CH (1) | CH493924A (en) |
| DE (1) | DE1910633A1 (en) |
| FR (1) | FR2004231A1 (en) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2117845C3 (en) * | 1971-04-13 | 1975-08-21 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Contact arrangement for vacuum switch |
| US3828428A (en) * | 1972-09-25 | 1974-08-13 | Westinghouse Electric Corp | Matrix-type electrodes having braze-penetration barrier |
| JPS49126547U (en) * | 1973-03-02 | 1974-10-30 | ||
| DE2536153B2 (en) * | 1975-08-13 | 1977-06-08 | Siemens AG, 1000 Berlin und 8000 München | PROCESS FOR PRODUCING MULTI-LAYER CONTACT PIECES FOR VACUUM MEDIUM VOLTAGE CIRCUIT BREAKERS |
| NL170995C (en) * | 1978-12-01 | 1983-01-17 | Hazemeijer Bv | VACUUM SWITCH, METAL SCREEN AND CATCH ELEMENT THEREFOR. |
| US4547640A (en) * | 1981-10-01 | 1985-10-15 | Kabushiki Kaisha Meidensha | Electrical contact structure of a vacuum interrupter |
| JPS59214123A (en) * | 1983-05-18 | 1984-12-04 | 三菱電機株式会社 | Contact material for vacuum breaker |
| JPH0760623B2 (en) * | 1986-01-21 | 1995-06-28 | 株式会社東芝 | Contact alloy for vacuum valve |
| DE3829888A1 (en) * | 1988-09-02 | 1990-03-15 | Calor Emag Elektrizitaets Ag | Vacuum switching chamber |
| US4940862A (en) * | 1989-10-26 | 1990-07-10 | Westinghouse Electric Corp. | Vacuum interrupter with improved vapor shield for gas adsorption |
| US5852266A (en) * | 1993-07-14 | 1998-12-22 | Hitachi, Ltd. | Vacuum circuit breaker as well as vacuum valve and electric contact used in same |
| DE29704327U1 (en) * | 1997-02-28 | 1998-07-02 | Siemens Ag | Vacuum interrupter with a getter device |
| DE19714654A1 (en) * | 1997-04-09 | 1998-10-15 | Abb Patent Gmbh | Vacuum switch with copper-based contact pieces |
| DE10322927A1 (en) * | 2003-05-21 | 2004-12-16 | Abb Patent Gmbh | Vacuum switching chamber has getter material in form of tablet or ring fixed in recess, preferably bore, in fixed and/or movable contact carrier |
| CN107293442B (en) * | 2016-03-30 | 2019-05-24 | 北京京东方真空电器有限责任公司 | A kind of insulation crust having integrated function and its manufacturing method |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR351131A (en) * | 1904-01-18 | 1905-07-04 | Ludwig Klenk | Engraving, enlarging, reducing machine, etc. |
| GB403937A (en) * | 1932-04-01 | 1934-01-04 | Gen Electric | Improvements relating to electric switches |
| US2121180A (en) * | 1935-11-21 | 1938-06-21 | Siemens Ag | Method for gettering vacuum tubes |
| US2794885A (en) * | 1954-12-13 | 1957-06-04 | Jennings Radio Mfg Corp | Vacuum switch |
| GB978973A (en) * | 1961-06-30 | 1965-01-01 | English Electric Co Ltd | Improvements in and relating to vacuum electric switches |
| US3158719A (en) * | 1962-04-03 | 1964-11-24 | Gen Electric | Contact structure for an electric circuit interrupter |
| GB1079013A (en) * | 1964-04-21 | 1967-08-09 | English Electric Co Ltd | Improvements in or relating to contacts and electrodes |
-
1968
- 1968-03-19 US US714197A patent/US3592987A/en not_active Expired - Lifetime
-
1969
- 1969-02-27 DE DE19691910633 patent/DE1910633A1/en active Pending
- 1969-03-04 CH CH324469A patent/CH493924A/en not_active IP Right Cessation
- 1969-03-11 BE BE729723D patent/BE729723A/xx unknown
- 1969-03-18 FR FR6907786A patent/FR2004231A1/fr not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| FR2004231A1 (en) | 1969-11-21 |
| US3592987A (en) | 1971-07-13 |
| DE1910633A1 (en) | 1969-10-09 |
| CH493924A (en) | 1970-07-15 |