FI942770A0 - Pressure Switch Device - Google Patents

Pressure Switch Device

Info

Publication number
FI942770A0
FI942770A0 FI942770A FI942770A FI942770A0 FI 942770 A0 FI942770 A0 FI 942770A0 FI 942770 A FI942770 A FI 942770A FI 942770 A FI942770 A FI 942770A FI 942770 A0 FI942770 A0 FI 942770A0
Authority
FI
Finland
Prior art keywords
diaphragm
movement
assembly
plungers
switch device
Prior art date
Application number
FI942770A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI942770A (en
Inventor
Anthony Kckenzie Owler
Original Assignee
Expo Safety Syst
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 Expo Safety Syst filed Critical Expo Safety Syst
Publication of FI942770A0 publication Critical patent/FI942770A0/en
Publication of FI942770A publication Critical patent/FI942770A/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H5/00—Snap-action arrangements, i.e. in which during a single opening operation or a single closing operation energy is first stored and then released to produce or assist the contact movement
    • H01H5/02—Energy stored by the attraction or repulsion of magnetic parts
    • 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
    • H01H35/2621—Means for adjustment of "ON" or "OFF" operating pressure by varying the bias on the pressure sensitive element the bias being magnetic

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Switches Operated By Changes In Physical Conditions (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Braking Systems And Boosters (AREA)

Abstract

A pressure operated switch device in which switch operation is effected by movement of the diaphragm in response to a fluid pressure difference across it, permanent magnets (40, 41) hold the diagphragm assembly (10) against switch operating movement until a reset device (45) is operated to release the diaphragm assembly from the magnets. A further permanent magnet (32) assists snap action and movement of the diaphragm assembly against the plungers of microswitches (20, 21), mounted on a bracket (25) which limits diaphragm movement against the plungers. A return spring (36) biasses the diaphragm assembly against the permanent magnets (40, 41).
FI942770A 1992-10-13 1994-06-10 Pressure Switch Device FI942770A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB929221492A GB9221492D0 (en) 1992-10-13 1992-10-13 Pressure switch device
PCT/GB1993/002117 WO1994009503A1 (en) 1992-10-13 1993-10-13 Pressure switch device

Publications (2)

Publication Number Publication Date
FI942770A0 true FI942770A0 (en) 1994-06-10
FI942770A FI942770A (en) 1994-06-10

Family

ID=10723374

Family Applications (1)

Application Number Title Priority Date Filing Date
FI942770A FI942770A (en) 1992-10-13 1994-06-10 Pressure Switch Device

Country Status (8)

Country Link
EP (1) EP0616721B1 (en)
AT (1) ATE161654T1 (en)
AU (1) AU5283093A (en)
DE (1) DE69315978T2 (en)
FI (1) FI942770A (en)
GB (1) GB9221492D0 (en)
NO (1) NO307396B1 (en)
WO (1) WO1994009503A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7157653B1 (en) 2005-09-20 2007-01-02 Deltrol Controls Magnetic latching switch

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1275832B (en) * 1959-11-14 1968-08-22 Bosch Gmbh Robert Device for preventing the untimely switching on of electric starting motors for internal combustion engines
GB1203413A (en) * 1966-09-28 1970-08-26 Inertia Switch Ltd Fluid pressure operated electric switches with magnetic restoring means
DE2257691A1 (en) * 1972-11-24 1974-05-30 Walter Beck Kg Kontroll Und Fe HYDRAULIC OR COMPRESSED AIR ACTUATED DIAPHRAGM HUB JACK
EP0003188A1 (en) * 1978-01-11 1979-07-25 SAUNIER DUVAL - Société Anonyme Adjustable air pressure sensitive switch in a safety device for the control of the air flow necessary for the combustion in a gas burner

Also Published As

Publication number Publication date
AU5283093A (en) 1994-05-09
NO942123D0 (en) 1994-06-08
GB9221492D0 (en) 1992-11-25
EP0616721A1 (en) 1994-09-28
NO307396B1 (en) 2000-03-27
ATE161654T1 (en) 1998-01-15
DE69315978T2 (en) 1998-07-30
FI942770A (en) 1994-06-10
WO1994009503A1 (en) 1994-04-28
EP0616721B1 (en) 1997-12-29
DE69315978D1 (en) 1998-02-05
NO942123L (en) 1994-06-13

Similar Documents

Publication Publication Date Title
GB917375A (en) Electric switches
US3611220A (en) Condition-responsive monitor
GB1603913A (en) Pushbutton control device for switching an elelctronic or electric circuit
GB1412510A (en) Pushbutton mechanism
CA2164590A1 (en) Fluid-operated spring brake actuator with improved pressure plate
TW339445B (en) Electromagnetic relay assembly
KR900011641A (en) Brake servo booster
US3595200A (en) Differential pressure indicator
ES8107412A1 (en) Vacuum switch
FI942770A (en) Pressure Switch Device
GB1217812A (en) A differential pressure responsive switch
DE3775903D1 (en) FLOW GUARD.
GB1162550A (en) Improvements in or relating to Push-Button Electric Switches.
GB1253759A (en) A fluid pressure actuated switch
IT1164367B (en) DEVICE TO CHECK THE STATUS OF A SWITCH OR DISTRIBUTOR, ESPECIALLY FOR HYDRAULIC CIRCUITS
GB1490266A (en) Float switch
GB2284672A (en) Magnetically actuated switch assembly
GB1279751A (en) A switching device
EP0254503A3 (en) Pig signaller
JPH0541037U (en) Pushbutton restorer for pushbutton switches
GB1449927A (en) Seat having a seat occupancy sensor
ES2071379T3 (en) PRESSURE REGULATOR.
GB1301630A (en)
KR0129842Y1 (en) Water flow sensing device
KR910008522A (en) Manipulator casing

Legal Events

Date Code Title Description
FD Application lapsed