FR681935A - Improvements to mercury switches - Google Patents

Improvements to mercury switches

Info

Publication number
FR681935A
FR681935A FR681935DA FR681935A FR 681935 A FR681935 A FR 681935A FR 681935D A FR681935D A FR 681935DA FR 681935 A FR681935 A FR 681935A
Authority
FR
France
Prior art keywords
mercury switches
mercury
switches
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
Priority claimed from US429861A external-priority patent/US1951161A/en
Application granted granted Critical
Publication of FR681935A publication Critical patent/FR681935A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H29/00—Switches having at least one liquid contact
    • H01H29/20—Switches having at least one liquid contact operated by tilting contact-liquid container
    • H01H29/22—Switches having at least one liquid contact operated by tilting contact-liquid container wherein contact is made and broken between liquid and solid
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H29/00—Switches having at least one liquid contact
    • H01H29/20—Switches having at least one liquid contact operated by tilting contact-liquid container
    • H01H29/24—Switches having at least one liquid contact operated by tilting contact-liquid container wherein contact is made and broken between liquid and liquid
FR681935D 1928-09-18 1929-09-18 Improvements to mercury switches Expired FR681935A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US306626A US1743067A (en) 1928-09-18 1928-09-18 Mercury switch
US429861A US1951161A (en) 1930-02-20 1930-02-20 Mercury switch

Publications (1)

Publication Number Publication Date
FR681935A true FR681935A (en) 1930-05-21

Family

ID=26975271

Family Applications (1)

Application Number Title Priority Date Filing Date
FR681935D Expired FR681935A (en) 1928-09-18 1929-09-18 Improvements to mercury switches

Country Status (2)

Country Link
US (1) US1743067A (en)
FR (1) FR681935A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2433687A (en) * 1943-09-27 1947-12-30 Metals & Controls Corp Electrical contact

Also Published As

Publication number Publication date
US1743067A (en) 1930-01-07

Similar Documents

Publication Publication Date Title
FR684620A (en) Improvements to projection devices
FR680473A (en) Switch refinements
FR681935A (en) Improvements to mercury switches
FR727880A (en) Mercury switch
FR39793E (en) Improvements to mercury switches
FR617979A (en) Improvements to mercury switches
FR718399A (en) Mercury switch
FR693293A (en) Improvements to electrical switches
FR680685A (en) Improvements to electrical switches
FR662267A (en) Mercury breaker
FR636136A (en) Improvements to mercury switches
FR676687A (en) Improvements to mercury vapor rectifiers
FR652593A (en) Improvements to switches and push-buttons
FR679301A (en) Improvements to mercury lamps
FR663082A (en) Mercury rocker switch
FR649149A (en) Improvements to switches
FR679818A (en) Switch enhancements
FR664448A (en) Mercury breaker
FR36144E (en) Mercury breaker
FR678257A (en) Improvements to space discharge devices
FR710990A (en) Improvements to mercury switches
FR700637A (en) Improvements in the construction of mercury switches
FR676808A (en) Arc switch
FR689312A (en) Improvements to vulcanizing devices
FR36142E (en) Improvements to paraohutes