FR621269A - Automatic switch for periodic opening and closing of one or more circuits - Google Patents

Automatic switch for periodic opening and closing of one or more circuits

Info

Publication number
FR621269A
FR621269A FR621269DA FR621269A FR 621269 A FR621269 A FR 621269A FR 621269D A FR621269D A FR 621269DA FR 621269 A FR621269 A FR 621269A
Authority
FR
France
Prior art keywords
circuits
closing
automatic switch
periodic opening
periodic
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.)
METRUM
Original Assignee
METRUM
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 METRUM filed Critical METRUM
Application granted granted Critical
Publication of FR621269A publication Critical patent/FR621269A/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
    • H01H29/28—Switches having at least one liquid contact with level of surface of contact liquid displaced by fluid pressure

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
FR621269D 1925-10-23 1926-09-11 Automatic switch for periodic opening and closing of one or more circuits Expired FR621269A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE621269X 1925-10-23

Publications (1)

Publication Number Publication Date
FR621269A true FR621269A (en) 1927-05-09

Family

ID=6577572

Family Applications (1)

Application Number Title Priority Date Filing Date
FR621269D Expired FR621269A (en) 1925-10-23 1926-09-11 Automatic switch for periodic opening and closing of one or more circuits

Country Status (1)

Country Link
FR (1) FR621269A (en)

Similar Documents

Publication Publication Date Title
FR725951A (en) Hydraulic opening and closing device
FR621269A (en) Automatic switch for periodic opening and closing of one or more circuits
FR592531A (en) Automatic opening and closing device for boxes
FR648180A (en) Pneumatic device for opening and closing an electrical circuit
FR617753A (en) Rotary switch for progressive closing and opening of electrical circuits
FR721498A (en) Switch for closing and opening electric circuits
FR658261A (en) Automatic opening and closing devices for doors and barriers
FR562070A (en) Automatic opening and closing valve device
FR573493A (en) System for opening and closing electrical circuits
FR652033A (en) Closing and opening device for cases
FR559108A (en) Box and device for easy opening and closing
FR538609A (en) Lid with automatic opening and closing for containers
FR689448A (en) Opening and closing device for refrigeration presses
FR591343A (en) Closing and adjusting device for water lances
FR610500A (en) Closing and tripping mechanism for circuit breakers
FR699120A (en) Automatic opening and closing faucet
FR607870A (en) Device for opening and closing drums
FR588087A (en) Door lock
FR680519A (en) Automatic opening and closing device for sewers
FR38153E (en) Device for the sudden and forced opening and closing of electrical circuits, applicable to switches, switches, etc.
FR613181A (en) Device for automatic opening and closing of level crossing gates
FR590046A (en) Door lock and lock
FR877580A (en) Device for periodic opening and closing of contacts or switches
FR550408A (en) Automatic opening and closing limiter, circuit breaker
FR560000A (en) Inkwell opening and closing automatically