FR25330E - Improvements made to electrical switches - Google Patents

Improvements made to electrical switches

Info

Publication number
FR25330E
FR25330E FR25330DA FR25330E FR 25330 E FR25330 E FR 25330E FR 25330D A FR25330D A FR 25330DA FR 25330 E FR25330 E FR 25330E
Authority
FR
France
Prior art keywords
improvements made
electrical switches
switches
electrical
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 US406961A external-priority patent/US1536772A/en
Application filed by Compagnie Francaise Thomson Houston SA filed Critical Compagnie Francaise Thomson Houston SA
Application granted granted Critical
Publication of FR25330E publication Critical patent/FR25330E/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/50—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
    • H01H3/46—Driving mechanisms, i.e. for transmitting driving force to the contacts using rod or lever linkage, e.g. toggle
    • 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
FR25330D 1920-08-30 1921-08-29 Improvements made to electrical switches Expired FR25330E (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US40396620A 1920-08-30 1920-08-30
US406961A US1536772A (en) 1920-08-30 1920-08-30 Electric switch
US406866A US1509758A (en) 1920-08-30 1920-08-30 Electric switch

Publications (1)

Publication Number Publication Date
FR25330E true FR25330E (en) 1923-01-24

Family

ID=27410564

Family Applications (2)

Application Number Title Priority Date Filing Date
FR539984D Expired FR539984A (en) 1920-08-30
FR25330D Expired FR25330E (en) 1920-08-30 1921-08-29 Improvements made to electrical switches

Family Applications Before (1)

Application Number Title Priority Date Filing Date
FR539984D Expired FR539984A (en) 1920-08-30

Country Status (4)

Country Link
US (1) US1509758A (en)
FR (2) FR25330E (en)
GB (1) GB179882A (en)
NL (1) NL12593C (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2460462A (en) * 1945-02-16 1949-02-01 Westinghouse Electric Corp Circuit controller
CN105551843A (en) * 2016-02-13 2016-05-04 河南莱源电气有限公司 Compound switch

Also Published As

Publication number Publication date
GB179882A (en) 1922-05-02
FR539984A (en) 1922-07-04
US1509758A (en) 1924-09-23
NL12593C (en)

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