EP0287531A3 - Interrupteur électrique étanche de pression pour circuits pneumatiques ou hydrauliques - Google Patents

Interrupteur électrique étanche de pression pour circuits pneumatiques ou hydrauliques Download PDF

Info

Publication number
EP0287531A3
EP0287531A3 EP88830158A EP88830158A EP0287531A3 EP 0287531 A3 EP0287531 A3 EP 0287531A3 EP 88830158 A EP88830158 A EP 88830158A EP 88830158 A EP88830158 A EP 88830158A EP 0287531 A3 EP0287531 A3 EP 0287531A3
Authority
EP
European Patent Office
Prior art keywords
hydraulic
fluid
pressure switch
pneumatic circuits
biasing spring
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.)
Ceased
Application number
EP88830158A
Other languages
German (de)
English (en)
Other versions
EP0287531A2 (fr
Inventor
Virginio Maggioni
Alessandro Giupponi
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.)
Industrie Magneti Marelli SRL
Original Assignee
Industrie Magneti Marelli SRL
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 Industrie Magneti Marelli SRL filed Critical Industrie Magneti Marelli SRL
Publication of EP0287531A2 publication Critical patent/EP0287531A2/fr
Publication of EP0287531A3 publication Critical patent/EP0287531A3/fr
Ceased 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
    • H01H35/34—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
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/02—Bases, casings, or covers
    • H01H9/04—Dustproof, splashproof, drip-proof, waterproof, or flameproof casings

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Switches Operated By Changes In Physical Conditions (AREA)
EP88830158A 1987-04-14 1988-04-12 Interrupteur électrique étanche de pression pour circuits pneumatiques ou hydrauliques Ceased EP0287531A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT5323587U IT210649Z2 (it) 1987-04-14 1987-04-14 Interruttore elettrico a pressione a tenuta stagna per circuiti idraulici o pneumatici
IT5323587U 1987-04-14

Publications (2)

Publication Number Publication Date
EP0287531A2 EP0287531A2 (fr) 1988-10-19
EP0287531A3 true EP0287531A3 (fr) 1990-07-04

Family

ID=11281100

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88830158A Ceased EP0287531A3 (fr) 1987-04-14 1988-04-12 Interrupteur électrique étanche de pression pour circuits pneumatiques ou hydrauliques

Country Status (2)

Country Link
EP (1) EP0287531A3 (fr)
IT (1) IT210649Z2 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2336212A (en) * 1998-04-06 1999-10-13 Ranco Controls Ltd Pressure sensor with adjustment means
US8173918B2 (en) 2007-05-29 2012-05-08 Norgren Gmbh Pressure switch with an integrated diaphragm and switch
CN110454531B (zh) * 2019-07-11 2021-03-02 江苏长龄液压股份有限公司 一种中心设有检测介质的弹簧

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2844679A (en) * 1954-03-01 1958-07-22 Selby W Brewer Pressure responsive switch
DE3326680A1 (de) * 1983-07-23 1985-01-31 Robert Scheuffele GmbH & Co KG, 7120 Bietigheim-Bissingen Druckschalter
GB2186118A (en) * 1986-02-01 1987-08-05 Scheuffele Robert Gmbh Co Kg Pressure switch

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2844679A (en) * 1954-03-01 1958-07-22 Selby W Brewer Pressure responsive switch
DE3326680A1 (de) * 1983-07-23 1985-01-31 Robert Scheuffele GmbH & Co KG, 7120 Bietigheim-Bissingen Druckschalter
GB2186118A (en) * 1986-02-01 1987-08-05 Scheuffele Robert Gmbh Co Kg Pressure switch

Also Published As

Publication number Publication date
IT8753235V0 (it) 1987-04-14
IT210649Z2 (it) 1989-01-11
EP0287531A2 (fr) 1988-10-19

Similar Documents

Publication Publication Date Title
CA2054487A1 (fr) Element a coefficient de temperature positif
MY103403A (en) Chip-tyre micro-fuse
CA2119945A1 (fr) Etancon avec manchon et methode d'utilisation de celui-ci
KR830009618A (ko) 진공 차단기
EP0314088A3 (en) Conductivity measuring device
EP0287531A3 (fr) Interrupteur électrique étanche de pression pour circuits pneumatiques ou hydrauliques
CA2186074A1 (fr) Porte-fusible
DE3475739D1 (en) Contact device
FR2291601A1 (fr) Dispositif de coupure a autocompression
ES2106118T3 (es) Contacto electrico hembra.
DE59008109D1 (de) Kontaktmembrane für Tastschalter.
ATE140821T1 (de) Dichter elektrischer druckschalter für pneumatische oder hydraulische kreisläufe
DE3468167D1 (en) Intrauterine contraceptive device
BG102901A (en) Vial to be used as part of a syringe
FR2408146A1 (fr) Pointe de touche
ES2012568A6 (es) Dispositivo de enganche de dos semibables de mando.
GB1530109A (en) Plug-in fluid pressure actuated electric switch
GB1493219A (en) Multipin plug and socket electrical connectors
KR900007013A (ko) 저전압 접촉 구조를 갖는 회로차단기
AU1533701A (en) Hollow-needle devices
JPS5790350A (en) Tension arm device
JPS5566129A (en) Analog signal transmission circuit
GB2018927A (en) Improvements in or relating to connector
ES274025U (es) Conector electrico para resortes neumaticos.
RU2016435C1 (ru) Пневматический коммутационный аппарат

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH DE ES FR GB GR IT LI LU NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH DE ES FR GB GR IT LI LU NL SE

17P Request for examination filed

Effective date: 19900925

17Q First examination report despatched

Effective date: 19930217

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED

18R Application refused

Effective date: 19930812