FR2264381A1 - Temp. or pressure actuated electric switch - has capsule for sensing pressure in temperature bulb or in container - Google Patents

Temp. or pressure actuated electric switch - has capsule for sensing pressure in temperature bulb or in container

Info

Publication number
FR2264381A1
FR2264381A1 FR7507496A FR7507496A FR2264381A1 FR 2264381 A1 FR2264381 A1 FR 2264381A1 FR 7507496 A FR7507496 A FR 7507496A FR 7507496 A FR7507496 A FR 7507496A FR 2264381 A1 FR2264381 A1 FR 2264381A1
Authority
FR
France
Prior art keywords
capsule
pressure
temperature
temp
container
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
FR7507496A
Other languages
French (fr)
Other versions
FR2264381B3 (en
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.)
United Gas Industries Ltd
Original Assignee
United Gas Industries Ltd
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 GB1108474A external-priority patent/GB1492592A/en
Application filed by United Gas Industries Ltd filed Critical United Gas Industries Ltd
Publication of FR2264381A1 publication Critical patent/FR2264381A1/en
Application granted granted Critical
Publication of FR2264381B3 publication Critical patent/FR2264381B3/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H35/00—Switches operated by change of a physical condition
    • H01H35/24—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow
    • H01H35/26—Details
    • H01H35/2607—Means for adjustment of "ON" or "OFF" operating pressure
    • H01H35/2635—Means for adjustment of "ON" or "OFF" operating pressure by adjustment of a motion transmitting system

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Thermally Actuated Switches (AREA)
  • Measuring Fluid Pressure (AREA)
  • Switches Operated By Changes In Physical Conditions (AREA)
  • Control Of Temperature (AREA)

Abstract

An expanding capsule actuates the switch contact. The capsule has a pair of flexible discs joined at their perimeter. The switch has two separable cases, one made of plastic material and containing the contacts and the other contains the capsule and part of the actuating mechanism. The actuating mechanism has an actuating lever with one end fixed to an adjustable screw, an actuating rod and a spring strip. A bulb containing methyl alcohol is used to sense temperature. The vapour pressure of the methyl alcohol varies with temperature and any increase with temperature will expand the capsule.
FR7507496A 1974-03-13 1975-03-11 Temp. or pressure actuated electric switch - has capsule for sensing pressure in temperature bulb or in container Granted FR2264381A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1108474A GB1492592A (en) 1974-03-13 1974-03-13 Electrical switches
GB1225174 1974-03-20

Publications (2)

Publication Number Publication Date
FR2264381A1 true FR2264381A1 (en) 1975-10-10
FR2264381B3 FR2264381B3 (en) 1977-04-15

Family

ID=26248032

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7507496A Granted FR2264381A1 (en) 1974-03-13 1975-03-11 Temp. or pressure actuated electric switch - has capsule for sensing pressure in temperature bulb or in container

Country Status (3)

Country Link
DE (1) DE7507607U (en)
DK (1) DK99575A (en)
FR (1) FR2264381A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3800654A1 (en) * 2019-10-03 2021-04-07 Saginomiya Seisakusho, Inc. Pressure switch

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5061832A (en) * 1991-01-28 1991-10-29 Dwyer Instruments, Inc. Field settable differential pressure switch assembly for low fluid pressure applications

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3800654A1 (en) * 2019-10-03 2021-04-07 Saginomiya Seisakusho, Inc. Pressure switch

Also Published As

Publication number Publication date
DE7507607U (en) 1975-07-24
DK99575A (en) 1975-11-03
FR2264381B3 (en) 1977-04-15

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