FR974450A - Circuit switches - Google Patents
Circuit switchesInfo
- Publication number
- FR974450A FR974450A FR974450DA FR974450A FR 974450 A FR974450 A FR 974450A FR 974450D A FR974450D A FR 974450DA FR 974450 A FR974450 A FR 974450A
- Authority
- FR
- France
- Prior art keywords
- circuit switches
- switches
- circuit
- 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
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
- H01H33/16—Impedances connected with contacts
- H01H33/164—Impedances connected with contacts the impedance being inserted in the circuit by blowing the arc onto an auxiliary electrode
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US783602A US2586290A (en) | 1947-11-01 | 1947-11-01 | Circuit interrupter |
Publications (1)
Publication Number | Publication Date |
---|---|
FR974450A true FR974450A (en) | 1951-02-22 |
Family
ID=25129803
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR974450D Expired FR974450A (en) | 1947-11-01 | 1948-10-29 | Circuit switches |
Country Status (2)
Country | Link |
---|---|
US (1) | US2586290A (en) |
FR (1) | FR974450A (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2671146A (en) * | 1952-01-14 | 1954-03-02 | Gen Electric | Interrupting unit for electric circuit breakers |
US2813953A (en) * | 1954-08-16 | 1957-11-19 | Ite Circuit Breaker Ltd | Circuit interruptions with non-linear resistance |
US2840671A (en) * | 1954-08-30 | 1958-06-24 | Siemens Ag | Circuit interrupter |
US2970198A (en) * | 1957-02-18 | 1961-01-31 | Westinghouse Electric Corp | Compressed-gas circuit interrupter |
CA681715A (en) * | 1958-04-24 | 1964-03-10 | B. Griscom Samuel | Air-break disconnecting switch |
CA681717A (en) * | 1958-04-30 | 1964-03-10 | W. Skooglund John | Air-break disconnecting switches |
US3356809A (en) * | 1964-06-08 | 1967-12-05 | Westinghouse Electric Corp | Multi-break compressed-gas circuit interrupters with rotating gasconducting bridging members |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE521636C (en) * | 1928-12-21 | 1931-03-25 | Lorenz Akt Ges C | Device for arc suppression on switching contacts |
FR686406A (en) * | 1928-12-21 | 1930-07-25 | Lorenz C Ag | Device for discharging switching contacts, especially high voltage ones |
BE375920A (en) * | 1930-08-05 | |||
US2052318A (en) * | 1935-05-01 | 1936-08-25 | Bell Telephone Labor Inc | Electric switching device |
BE447360A (en) * | 1938-05-27 | |||
NL67950C (en) * | 1940-01-13 | |||
USRE22298E (en) * | 1941-06-14 | 1943-04-06 | Gas blast circuit breaker | |
US2295305A (en) * | 1941-10-23 | 1942-09-08 | Gen Electric | Motor circuit |
US2530939A (en) * | 1947-09-27 | 1950-11-21 | Westinghouse Electric Corp | Circuit interrupter with arc extinguishing shunt |
-
1947
- 1947-11-01 US US783602A patent/US2586290A/en not_active Expired - Lifetime
-
1948
- 1948-10-29 FR FR974450D patent/FR974450A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US2586290A (en) | 1952-02-19 |
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