FR2340488B1 - - Google Patents

Info

Publication number
FR2340488B1
FR2340488B1 FR7702937A FR7702937A FR2340488B1 FR 2340488 B1 FR2340488 B1 FR 2340488B1 FR 7702937 A FR7702937 A FR 7702937A FR 7702937 A FR7702937 A FR 7702937A FR 2340488 B1 FR2340488 B1 FR 2340488B1
Authority
FR
France
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
FR7702937A
Other languages
French (fr)
Other versions
FR2340488A1 (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.)
Smiths Group PLC
Original Assignee
Smiths Group PLC
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 GB4160/76A external-priority patent/GB1543271A/en
Application filed by Smiths Group PLC filed Critical Smiths Group PLC
Publication of FR2340488A1 publication Critical patent/FR2340488A1/en
Application granted granted Critical
Publication of FR2340488B1 publication Critical patent/FR2340488B1/fr
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J3/00—Diaphragms; Bellows; Bellows pistons
    • F16J3/02—Diaphragms
    • 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
    • H01H35/34—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow actuated by diaphragm
    • H01H35/343—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow actuated by diaphragm by snap acting diaphragm

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Switches Operated By Changes In Physical Conditions (AREA)
  • Measuring Fluid Pressure (AREA)
  • Diaphragms And Bellows (AREA)
FR7702937A 1976-02-03 1977-02-02 Pressure:sensitive diaphragm with snap:over dome - has cylindrical or conical section at periphery of dome to improve resistance to cracking Granted FR2340488A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB4160/76A GB1543271A (en) 1976-02-03 1976-02-03 Fluid-pressure actuated switches
GB446476 1976-02-04

Publications (2)

Publication Number Publication Date
FR2340488A1 FR2340488A1 (en) 1977-09-02
FR2340488B1 true FR2340488B1 (en) 1981-12-18

Family

ID=26238925

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7702937A Granted FR2340488A1 (en) 1976-02-03 1977-02-02 Pressure:sensitive diaphragm with snap:over dome - has cylindrical or conical section at periphery of dome to improve resistance to cracking

Country Status (4)

Country Link
JP (1) JPS5294963A (en)
DE (1) DE2703283C2 (en)
FR (1) FR2340488A1 (en)
SE (1) SE7701023L (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4793717A (en) * 1982-05-06 1988-12-27 Minnesota Mining And Manufacturing Company Device for visually indicating a pressure or temperature condition
GB2176595A (en) * 1985-06-05 1986-12-31 Warner Lambert Co Pressure sensing device
US4694127A (en) * 1986-06-23 1987-09-15 Borg-Warner Automotive, Inc. Pressure responsive switch assembly
US4758695A (en) * 1986-09-03 1988-07-19 Texas Instruments Incorporated Automotive transmission control system and improved longevity therefor
JPH0830536B2 (en) * 1987-12-09 1996-03-27 潤一 西澤 Flat diaphragm
GB9320347D0 (en) * 1993-10-02 1993-11-24 Delta Eng Holdings Ltd Control valve
GB2287303A (en) * 1993-10-02 1995-09-13 Delta Eng Holdings Ltd Control valve

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2381582A (en) * 1944-05-08 1945-08-07 Air Communications Inc Pressure switch
US3252481A (en) * 1963-08-29 1966-05-24 Ibm Fluid-controlled memory with nondestructive read out
US3544744A (en) * 1968-06-14 1970-12-01 Robertshaw Controls Co Double diaphragm pressure responsive switch construction
US3720090A (en) * 1968-12-30 1973-03-13 Texas Instruments Inc Switch with improved means and method for calibration
US3676622A (en) * 1971-05-28 1972-07-11 Joseph S Brumbelow Non-sparking electrical switch
US3898421A (en) * 1972-08-18 1975-08-05 Matsushita Electric Ind Co Ltd Push button switch with elastic conductive sheet
US3816685A (en) * 1972-12-26 1974-06-11 Texas Instruments Inc Pressure responsive device having improved means for calibration
GB1509772A (en) * 1975-03-27 1978-05-04 Standard Telephones Cables Ltd Temperature sensitive electrical switch

Also Published As

Publication number Publication date
JPS5294963A (en) 1977-08-10
SE7701023L (en) 1977-08-04
DE2703283C2 (en) 1984-09-06
FR2340488A1 (en) 1977-09-02
DE2703283A1 (en) 1977-08-18

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