[go: up one dir, main page]

FR712234A - Improvements to the contacts of electrical devices, such as circuit breakers and switches with cut-off in a fluid - Google Patents

Improvements to the contacts of electrical devices, such as circuit breakers and switches with cut-off in a fluid

Info

Publication number
FR712234A
FR712234A FR712234DA FR712234A FR 712234 A FR712234 A FR 712234A FR 712234D A FR712234D A FR 712234DA FR 712234 A FR712234 A FR 712234A
Authority
FR
France
Prior art keywords
switches
contacts
fluid
cut
circuit breakers
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
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Compagnie Francaise Thomson Houston SA
Original Assignee
Compagnie Francaise Thomson Houston SA
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 by Compagnie Francaise Thomson Houston SA filed Critical Compagnie Francaise Thomson Houston SA
Application granted granted Critical
Publication of FR712234A publication Critical patent/FR712234A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00Contacts
    • H01H1/12Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/36Contacts characterised by the manner in which co-operating contacts engage by sliding
    • H01H1/38Plug-and-socket contacts
    • H01H1/385Contact arrangements for high voltage gas blast circuit breakers
FR712234D 1930-02-28 1931-02-27 Improvements to the contacts of electrical devices, such as circuit breakers and switches with cut-off in a fluid Expired FR712234A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US432245A US1796217A (en) 1930-02-28 1930-02-28 Switch-contact structure

Publications (1)

Publication Number Publication Date
FR712234A true FR712234A (en) 1931-09-28

Family

ID=23715348

Family Applications (1)

Application Number Title Priority Date Filing Date
FR712234D Expired FR712234A (en) 1930-02-28 1931-02-27 Improvements to the contacts of electrical devices, such as circuit breakers and switches with cut-off in a fluid

Country Status (2)

Country Link
US (1) US1796217A (en)
FR (1) FR712234A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2426387A (en) * 1944-04-04 1947-08-26 Ite Circuit Breaker Ltd Circuit breaker contact
US2462791A (en) * 1945-02-13 1949-02-22 Westinghouse Electric Corp Circuit interrupter

Also Published As

Publication number Publication date
US1796217A (en) 1931-03-10

Similar Documents

Publication Publication Date Title
FR749883A (en) Improvements relating to electrical circuit breakers
FR712234A (en) Improvements to the contacts of electrical devices, such as circuit breakers and switches with cut-off in a fluid
FR715898A (en) Improvements to electrical circuit breakers, particularly to devices with high breaking capacity
FR687116A (en) Improvements to electrical devices such as circuit breakers, switches and the like
FR756120A (en) Improvements made to switchgear panels, in particular those for electrical devices
FR616727A (en) Improvements to electrical protection devices, such as circuit breakers
FR797227A (en) Improvements made to electrical circuit breaking devices
FR729720A (en) Improvements to electrical switches and circuit breakers with fluid cut
FR829783A (en) Improvements to circuit breakers, switches, contactors and similar devices
FR835824A (en) Improvements to electrical switches and their contacts
FR722668A (en) Electrical circuit breakers
FR40391E (en) Improvements to electrical circuit breakers, in particular to devices with high breaking capacity
FR732158A (en) Improvements to the contacts of electrical switches and similar devices
FR703055A (en) Improvements to circuit breaking devices, such as switches and circuit breakers
FR740743A (en) Improvements to electrical warning devices
FR564730A (en) Improvements in electrical instantaneous switches and switches and similar devices
FR724877A (en) Improvements to electrical mercury circuit breakers
FR708453A (en) Snap-action switch with push buttons, for electrical pipes
FR818627A (en) Combined electrical switching and protection devices
FR690681A (en) Further training in the manufacture of switches, circuit breakers and combination devices
FR600859A (en) Improvements to electrical installations with circuit breakers
FR852537A (en) Improvements to electrical circuit breakers and other automatic devices with similar operating conditions
DK45813C (en) Coupling to electrical switchgear and signal drive devices.
FR38315E (en) Improvements to electrical appliances
FR832138A (en) Improvements to electrical transmission circuits