WO1991000607A3 - Appareil de commutation active par un fluide - Google Patents

Appareil de commutation active par un fluide Download PDF

Info

Publication number
WO1991000607A3
WO1991000607A3 PCT/US1990/003736 US9003736W WO9100607A3 WO 1991000607 A3 WO1991000607 A3 WO 1991000607A3 US 9003736 W US9003736 W US 9003736W WO 9100607 A3 WO9100607 A3 WO 9100607A3
Authority
WO
WIPO (PCT)
Prior art keywords
spring
actuator
switch
arm
housing
Prior art date
Application number
PCT/US1990/003736
Other languages
English (en)
Other versions
WO1991000607A2 (fr
Inventor
Louis D Atkinson
Terence T Smith
Original Assignee
Louis D Atkinson
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 Louis D Atkinson filed Critical Louis D Atkinson
Priority to CA002035442A priority Critical patent/CA2035442C/fr
Publication of WO1991000607A2 publication Critical patent/WO1991000607A2/fr
Publication of WO1991000607A3 publication Critical patent/WO1991000607A3/fr

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
    • H01H35/2657—Details with different switches operated at substantially different pressures
    • 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
    • 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
    • H01H35/2614—Means for adjustment of "ON" or "OFF" operating pressure by varying the bias on the pressure sensitive element

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Switches Operated By Changes In Physical Conditions (AREA)

Abstract

Une unité de commutation pneumatique comprend un logement du commutateur. Un ressort de contact conducteur est monté entre des supports diamétriques, l'un d'eux étant réglable. Le ressort possède un bras actuateur central et un bras de contact décalé interconnecté à une structure d'encerclement. Un actuateur de commutation en deux pièces possède des éléments de serrage tenus sur le bras actuateur. Des éléments séparés de fermeture sont fixés sur les extrémités du logement de commutateur. L'organe de fermeture peut serrer un diaphragme contre le logement, le diaphragme engageant l'actuateur. L'organe de fermeture peut avoir un élément d'actionnement mécanique ou une simple plaque de fermeture engageant l'actuateur. Les deux logements de commutateurs peuvent être montés sur les côtés opposés d'une chambre de pression unique avec des diaphragmes extrêmes fermant les extrémités opposées du logement de commutateur. La pression agit sur les deux unités de commutation pour établir une unité de commutation séquentielle. Le ressort possède une structure rectangulaire avec une ouverture centrale dans laquelle se trouve un bras d'actionnement. Les extrémités opposées du ressort sont montées dans des supports dont l'un est réglable. Un bras de contact est fixé sur une extrémité et fait saillie parallèlement au côté. Le coin opposé du ressort comprend une entaille pour commander l'action de déclic. Un ressort alterné possède un anneau avec un bras actuateur cordal et un bras de contact cordal. Le ressort est monté sur une ligne perpendiculaire aux deux bras.
PCT/US1990/003736 1989-06-30 1990-06-29 Appareil de commutation active par un fluide WO1991000607A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA002035442A CA2035442C (fr) 1989-06-30 1990-06-29 Interrupteur actionne par un fluide

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/374,241 US5001317A (en) 1989-06-30 1989-06-30 Fluid activated switch apparatus
US374,241 1989-06-30

Publications (2)

Publication Number Publication Date
WO1991000607A2 WO1991000607A2 (fr) 1991-01-10
WO1991000607A3 true WO1991000607A3 (fr) 1991-04-04

Family

ID=23475918

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1990/003736 WO1991000607A2 (fr) 1989-06-30 1990-06-29 Appareil de commutation active par un fluide

Country Status (4)

Country Link
US (1) US5001317A (fr)
EP (1) EP0436694A1 (fr)
CA (1) CA2035442C (fr)
WO (1) WO1991000607A2 (fr)

Families Citing this family (15)

* 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
US5132500A (en) * 1991-02-11 1992-07-21 Micro Pneumatic Logic, Inc. Differential pressure switch with sealed contacts
EP0512937A1 (fr) * 1991-05-07 1992-11-11 Fagor, S.Coop. Ltda. Perfectionnements aux pressostats
US5198631A (en) 1991-09-11 1993-03-30 General Electric Company Pressure responsive control device
FR2698963B1 (fr) * 1992-12-08 1995-03-03 Jaeger Capteur électrique bi-seuil.
US5565666A (en) * 1995-03-31 1996-10-15 Johnson Service Company Trip free manual reset switch using an m-blade
US5661278A (en) * 1995-10-13 1997-08-26 Airtrol Components Inc. Pressure responsive apparatus couples by a spring-loaded linearly moving carrier to operate a switch unit
GB2336212A (en) * 1998-04-06 1999-10-13 Ranco Controls Ltd Pressure sensor with adjustment means
US5941371A (en) * 1998-06-18 1999-08-24 Johnson Controls Technology, Inc. Electrical switch with latching manual/automatic reset
US5950811A (en) * 1998-06-18 1999-09-14 Johnson Controls Technology Co. Electrical switch with user selectable manual/automatic reset
US6343414B1 (en) * 1999-09-22 2002-02-05 General Electric Company Snap-disk formation process and machine
US7479609B1 (en) * 2003-07-03 2009-01-20 Barksdale, Inc. Adjustable snap action switch
CN101715598B (zh) * 2007-01-10 2013-05-01 克雷格·R.·怀尔德曼 压差开关
US8215059B2 (en) * 2009-06-12 2012-07-10 Williams R Marc Modular gardening system
CN111446121B (zh) * 2020-05-07 2022-04-22 台州德基水泵科技有限公司 一种可调压力开关

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3573410A (en) * 1969-09-17 1971-04-06 Weatherhead Co Snap action pressure sensitive switch with snap disc resiliently supported between legs of a terminal
FR2213572A1 (fr) * 1973-01-04 1974-08-02 Guma Steven
US3830995A (en) * 1970-04-09 1974-08-20 Sixten Englesson Control device with snap switch
US4458117A (en) * 1982-08-25 1984-07-03 General Electric Company Control device and methods of operating such

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1665312B2 (de) * 1966-02-08 1975-11-06 Patinvest Patent- U. Investment Ag, Chur (Schweiz) Druckabhängiger, mehrpoliger elektrischer Schnappschalter
US3535480A (en) * 1968-01-29 1970-10-20 Weatherhead Co Pressure sensitive switch
US3862387A (en) * 1973-12-17 1975-01-21 Dwyer Instr Miniaturized differential pressure switch with integral contact and spring mounted on diaphragm
US4081638A (en) * 1976-10-26 1978-03-28 Corning Glass Works Level control with float actuated switch
US4267413A (en) * 1978-09-11 1981-05-12 United Electric Controls Company Temperature compensated pressure control
US4330695A (en) * 1980-02-27 1982-05-18 General Electric Company Control device
US4456801A (en) * 1982-03-08 1984-06-26 The Singer Company Pressure switch

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3573410A (en) * 1969-09-17 1971-04-06 Weatherhead Co Snap action pressure sensitive switch with snap disc resiliently supported between legs of a terminal
US3830995A (en) * 1970-04-09 1974-08-20 Sixten Englesson Control device with snap switch
FR2213572A1 (fr) * 1973-01-04 1974-08-02 Guma Steven
US4458117A (en) * 1982-08-25 1984-07-03 General Electric Company Control device and methods of operating such

Also Published As

Publication number Publication date
WO1991000607A2 (fr) 1991-01-10
EP0436694A1 (fr) 1991-07-17
US5001317A (en) 1991-03-19
CA2035442A1 (fr) 1990-12-31
CA2035442C (fr) 2002-01-01

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