FR38629E - Improvements to electrical switches and circuit breakers - Google Patents

Improvements to electrical switches and circuit breakers

Info

Publication number
FR38629E
FR38629E FR38629DA FR38629E FR 38629 E FR38629 E FR 38629E FR 38629D A FR38629D A FR 38629DA FR 38629 E FR38629 E FR 38629E
Authority
FR
France
Prior art keywords
circuit breakers
electrical switches
switches
electrical
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
Priority claimed from US369903A external-priority patent/US1775028A/en
Application filed by Compagnie Francaise Thomson Houston SA filed Critical Compagnie Francaise Thomson Houston SA
Application granted granted Critical
Publication of FR38629E publication Critical patent/FR38629E/en
Expired legal-status Critical Current

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
    • H01H33/53—Cases; Reservoirs, tanks, piping or valves, for arc-extinguishing fluid; Accessories therefor, e.g. safety arrangements, pressure relief devices
    • H01H33/55—Oil reservoirs or tanks; Lowering means therefor
    • 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
    • H01H33/53—Cases; Reservoirs, tanks, piping or valves, for arc-extinguishing fluid; Accessories therefor, e.g. safety arrangements, pressure relief devices
    • H01H33/56—Gas reservoirs
    • H01H2033/568—Gas reservoirs with overpressure release, e.g. rupture membranes
FR38629D 1927-07-11 1930-06-05 Improvements to electrical switches and circuit breakers Expired FR38629E (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US204674A US1812746A (en) 1927-07-11 1927-07-11 Electric switch
US369903A US1775028A (en) 1929-06-10 1929-06-10 Safety pressure relief and indicating apparatus

Publications (1)

Publication Number Publication Date
FR38629E true FR38629E (en) 1931-06-24

Family

ID=22758941

Family Applications (2)

Application Number Title Priority Date Filing Date
FR660693D Expired FR660693A (en) 1927-07-11 1928-07-10 Improvements to electrical switches and circuit breakers
FR38629D Expired FR38629E (en) 1927-07-11 1930-06-05 Improvements to electrical switches and circuit breakers

Family Applications Before (1)

Application Number Title Priority Date Filing Date
FR660693D Expired FR660693A (en) 1927-07-11 1928-07-10 Improvements to electrical switches and circuit breakers

Country Status (4)

Country Link
US (1) US1812746A (en)
DE (1) DE493038C (en)
FR (2) FR660693A (en)
GB (2) GB293776A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE943544C (en) * 1944-08-05 1956-05-24 Aeg Liquid-filled high-voltage electrical apparatus
DE102007022465A1 (en) * 2007-05-08 2008-11-13 Siemens Ag Arrangement with an encapsulating housing and method for protecting an encapsulating housing

Also Published As

Publication number Publication date
US1812746A (en) 1931-06-30
GB353997A (en) 1931-08-06
FR660693A (en) 1929-07-16
DE493038C (en) 1930-03-05
GB293776A (en) 1929-10-10

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