HK1065887A1 - Differential pressure switch - Google Patents

Differential pressure switch

Info

Publication number
HK1065887A1
HK1065887A1 HK04108549A HK04108549A HK1065887A1 HK 1065887 A1 HK1065887 A1 HK 1065887A1 HK 04108549 A HK04108549 A HK 04108549A HK 04108549 A HK04108549 A HK 04108549A HK 1065887 A1 HK1065887 A1 HK 1065887A1
Authority
HK
Hong Kong
Prior art keywords
membrane
differential pressure
pressure switch
sensor
movements
Prior art date
Application number
HK04108549A
Inventor
Marco Gerolamo Omati
Ennio Omati
Original Assignee
Ma Ter 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 Ma Ter Srl filed Critical Ma Ter Srl
Publication of HK1065887A1 publication Critical patent/HK1065887A1/en

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

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Switches Operated By Changes In Physical Conditions (AREA)
  • Vehicle Body Suspensions (AREA)
  • Measuring Fluid Pressure (AREA)

Abstract

A differential pressure switch is described comprising a first (1) and a second (2) inlet for first and second fluids operating respectively on opposite faces of a deformable membrane (3) in such a way so as to determine opposite movements of the membrane (3) for the activation or the disactivation of a sensor (8, 13) as a function of the difference in pressure between the first and the second fluid. Lever means (9) are interposed between the membrane (3) and the sensor (8, 13) so as to amplify the movements being commanded to the membrane (3) in the direction of the sensor (8, 13). <IMAGE>
HK04108549A 2002-12-24 2004-11-01 Differential pressure switch HK1065887A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT002761A ITMI20022761A1 (en) 2002-12-24 2002-12-24 DIFFERENTIAL PRESSURE SWITCH

Publications (1)

Publication Number Publication Date
HK1065887A1 true HK1065887A1 (en) 2005-03-04

Family

ID=32448932

Family Applications (1)

Application Number Title Priority Date Filing Date
HK04108549A HK1065887A1 (en) 2002-12-24 2004-11-01 Differential pressure switch

Country Status (7)

Country Link
EP (1) EP1434245B1 (en)
CN (1) CN1327464C (en)
AT (1) ATE306717T1 (en)
DE (1) DE60301846T2 (en)
ES (1) ES2247483T3 (en)
HK (1) HK1065887A1 (en)
IT (1) ITMI20022761A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1392477B1 (en) * 2008-12-18 2012-03-09 Ma Ter Srl ELECTROMECHANICAL PRESSURE SWITCH WITH DISADVANTAGE LEVER AMPLIFICATION SYSTEM

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3241381A (en) * 1962-02-28 1966-03-22 Cutler Hammer Inc Motion transmitting mechanism
US3281554A (en) * 1964-09-29 1966-10-25 Westinghouse Air Brake Co Pressure operated switch with a friction clutch
US4914264A (en) * 1988-07-11 1990-04-03 Robertshaw Controls Company Control device having a self-supporting switch unit therein
CN1307349A (en) * 2000-01-27 2001-08-08 株式会社不二工机 Pressure switch

Also Published As

Publication number Publication date
EP1434245A1 (en) 2004-06-30
ATE306717T1 (en) 2005-10-15
EP1434245B1 (en) 2005-10-12
DE60301846D1 (en) 2005-11-17
ITMI20022761A1 (en) 2004-06-25
ES2247483T3 (en) 2006-03-01
CN1327464C (en) 2007-07-18
DE60301846T2 (en) 2006-11-16
CN1510707A (en) 2004-07-07

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Legal Events

Date Code Title Description
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20201222