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EP0017640A3 - Miniature mercury-wetted reed switch - Google Patents

Miniature mercury-wetted reed switch Download PDF

Info

Publication number
EP0017640A3
EP0017640A3 EP80870018A EP80870018A EP0017640A3 EP 0017640 A3 EP0017640 A3 EP 0017640A3 EP 80870018 A EP80870018 A EP 80870018A EP 80870018 A EP80870018 A EP 80870018A EP 0017640 A3 EP0017640 A3 EP 0017640A3
Authority
EP
European Patent Office
Prior art keywords
spring
capsule
armature
reed switch
mercury
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.)
Granted
Application number
EP80870018A
Other languages
French (fr)
Other versions
EP0017640B1 (en
EP0017640A2 (en
Inventor
Romain Bollen
Jean-Marie Ponsard
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.)
CP Clare International NV
Original Assignee
CP Clare International NV
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 CP Clare International NV filed Critical CP Clare International NV
Priority to AT80870018T priority Critical patent/ATE4399T1/en
Publication of EP0017640A2 publication Critical patent/EP0017640A2/en
Publication of EP0017640A3 publication Critical patent/EP0017640A3/en
Application granted granted Critical
Publication of EP0017640B1 publication Critical patent/EP0017640B1/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/06—Contacts characterised by the shape or structure of the contact-making surface, e.g. grooved
    • H01H1/08—Contacts characterised by the shape or structure of the contact-making surface, e.g. grooved wetted with mercury
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/64—Protective enclosures, baffle plates, or screens for contacts
    • H01H1/66—Contacts sealed in an evacuated or gas-filled envelope, e.g. magnetic dry-reed contacts

Landscapes

  • Contacts (AREA)
  • Switches That Are Operated By Magnetic Or Electric Fields (AREA)
  • Electromagnets (AREA)

Abstract

1. A mercury-wetted reed switch of the break-before-make type comprising a capsule (10) including a pair of contacts and a movable magnetic armature (1) consisting of a beam (11) extending axially inside the capsule (10) and having two pole ends (12, 13) capable of alternately contacting engagement with a respective contact (2, 3) when the armature (1) is pivoting, characterized by a helicoidal spring (5) extending axially inside the capsule (10) and being attached at its central portion to a cylindrical annular electrode (6) which extends around it and which is fixedly positioned inside the capsule, said spring (5) working in flexion mode, and by the beam (11) of the armature (1) extending inside the spring (5) and being suspended to the ends of said spring at two points (51, 52) symmetrically situated with respect to the transversal axis of said beam (11), the pole ends (12, 13) of the armature projecting beyond said ends of the spring (5), whereby said spring is capable of storing mechanical energy.
EP80870018A 1979-03-15 1980-03-14 Miniature mercury-wetted reed switch Expired EP0017640B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80870018T ATE4399T1 (en) 1979-03-15 1980-03-14 MERCURY-WETTED MINIATURE GAS SWITCH.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
LU81053 1979-03-15
LU81053A LU81053A1 (en) 1979-03-15 1979-03-15 MINIATURE MERCURY BLADE SWITCH

Publications (3)

Publication Number Publication Date
EP0017640A2 EP0017640A2 (en) 1980-10-15
EP0017640A3 true EP0017640A3 (en) 1980-11-26
EP0017640B1 EP0017640B1 (en) 1983-08-03

Family

ID=19729123

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80870018A Expired EP0017640B1 (en) 1979-03-15 1980-03-14 Miniature mercury-wetted reed switch

Country Status (5)

Country Link
EP (1) EP0017640B1 (en)
JP (1) JPS55143717A (en)
AT (1) ATE4399T1 (en)
DE (1) DE3064469D1 (en)
LU (1) LU81053A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2131230A (en) * 1982-10-07 1984-06-13 Weston William A Electric switching devices
JP2685746B2 (en) * 1986-10-06 1997-12-03 日本ヒユーレツト・パツカード 株式会社 Low noise mercury switch
FR2620821B1 (en) * 1987-09-17 1990-09-14 Inst Francais Du Petrole VOLTAGE INDICATOR DEVICE BETWEEN A MEMBER AND A CONNECTING ELEMENT

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH462958A (en) * 1964-08-11 1968-09-30 Fifth Dimension Inc Electrical switching device with mercury relay intended to be actuated by pulses
US3643185A (en) * 1970-10-05 1972-02-15 Gen Electric Mercury-wetted relay and method of manufacture
FR2242765A1 (en) * 1973-08-31 1975-03-28 Gillard Michel
FR2286487A1 (en) * 1974-08-22 1976-04-23 Mo Energeticheskij Institut SEALED BULB SWITCH, AND ELECTROMAGNETIC DEVICE EQUIPPED WITH SUCH A SWITCH AND ITS CONTROL PROCEDURE, AND DEVICE FOR CARRYING OUT THIS PROCESS

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH462958A (en) * 1964-08-11 1968-09-30 Fifth Dimension Inc Electrical switching device with mercury relay intended to be actuated by pulses
US3643185A (en) * 1970-10-05 1972-02-15 Gen Electric Mercury-wetted relay and method of manufacture
FR2242765A1 (en) * 1973-08-31 1975-03-28 Gillard Michel
FR2286487A1 (en) * 1974-08-22 1976-04-23 Mo Energeticheskij Institut SEALED BULB SWITCH, AND ELECTROMAGNETIC DEVICE EQUIPPED WITH SUCH A SWITCH AND ITS CONTROL PROCEDURE, AND DEVICE FOR CARRYING OUT THIS PROCESS

Also Published As

Publication number Publication date
JPS55143717A (en) 1980-11-10
DE3064469D1 (en) 1983-09-08
EP0017640B1 (en) 1983-08-03
ATE4399T1 (en) 1983-08-15
LU81053A1 (en) 1980-09-24
EP0017640A2 (en) 1980-10-15

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