FR693293A - Improvements to electrical switches - Google Patents

Improvements to electrical switches

Info

Publication number
FR693293A
FR693293A FR693293DA FR693293A FR 693293 A FR693293 A FR 693293A FR 693293D A FR693293D A FR 693293DA FR 693293 A FR693293 A FR 693293A
Authority
FR
France
Prior art keywords
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)
Inventor
Stanislas Teszner
Paul-Joseph Branchu
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.)
Merlin Gerin SA
Original Assignee
Merlin Gerin 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 Merlin Gerin SA filed Critical Merlin Gerin SA
Application granted granted Critical
Publication of FR693293A publication Critical patent/FR693293A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/20—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of concrete, e.g. reinforced concrete, or other stonelike material
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/30—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts being composed of two or more materials; Composite steel and concrete constructions
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/44—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D1/00—Demodulation of amplitude-modulated oscillations
    • H03D1/14—Demodulation of amplitude-modulated oscillations by means of non-linear elements having more than two poles
    • H03D1/16—Demodulation of amplitude-modulated oscillations by means of non-linear elements having more than two poles of discharge tubes
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/20—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of concrete, e.g. reinforced concrete, or other stonelike material
    • E04B1/21—Connections specially adapted therefor
    • E04B1/215—Connections specially adapted therefor comprising metallic plates or parts
FR693293D 1928-12-29 1929-07-09 Improvements to electrical switches Expired FR693293A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT1948691X 1928-12-29
FR693293T 1929-07-09
BE371675T 1930-07-03

Publications (1)

Publication Number Publication Date
FR693293A true FR693293A (en) 1930-11-18

Family

ID=40547745

Family Applications (2)

Application Number Title Priority Date Filing Date
FR693293D Expired FR693293A (en) 1928-12-29 1929-07-09 Improvements to electrical switches
FR719593D Expired FR719593A (en) 1928-12-29 1931-07-03 Improvements to electric arc extinguishing devices

Family Applications After (1)

Application Number Title Priority Date Filing Date
FR719593D Expired FR719593A (en) 1928-12-29 1931-07-03 Improvements to electric arc extinguishing devices

Country Status (2)

Country Link
BE (1) BE371675A (en)
FR (2) FR693293A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2820122A (en) * 1954-07-16 1958-01-14 Jeumont Forges Const Elec Circuit breakers with magnetic blowout

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE6556T1 (en) * 1979-05-25 1984-03-15 South Wales Switchgear Limited ELECTRICAL SWITCHGEAR OF THE ROTATING ARC TYPE WITH DOUBLE BREAKDOWN.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2820122A (en) * 1954-07-16 1958-01-14 Jeumont Forges Const Elec Circuit breakers with magnetic blowout

Also Published As

Publication number Publication date
BE371675A (en) 1930-08-30
FR719593A (en) 1932-02-11

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