GB1413091A - Fluid pressure responsive electrical switching device - Google Patents

Fluid pressure responsive electrical switching device

Info

Publication number
GB1413091A
GB1413091A GB2356773A GB2356773A GB1413091A GB 1413091 A GB1413091 A GB 1413091A GB 2356773 A GB2356773 A GB 2356773A GB 2356773 A GB2356773 A GB 2356773A GB 1413091 A GB1413091 A GB 1413091A
Authority
GB
United Kingdom
Prior art keywords
blade
pressure piece
extension
fluid pressure
axis
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.)
Expired
Application number
GB2356773A
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.)
EUROPE Manufacturing TRUST REG
Original Assignee
EUROPE Manufacturing TRUST REG
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 EUROPE Manufacturing TRUST REG filed Critical EUROPE Manufacturing TRUST REG
Publication of GB1413091A publication Critical patent/GB1413091A/en
Expired 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
    • H01H35/26—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
    • 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
    • H01H35/2664—Details with different switches operated at substantially different pressures making use of a balance plate pivoting about different axes

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Push-Button Switches (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
  • Electrically Driven Valve-Operating Means (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Hydraulic Motors (AREA)
  • Switches Operated By Changes In Physical Conditions (AREA)

Abstract

1413091 Fluid pressure switch EUROPE MFG TRUST REG 17 May 1973 [18 May 1972] 23567/73 Heading H1N In a diaphragm type fluid-pressure switch in which the forces derived from a diaphragm 3 to which is attached a rigid plate 4 is transmitted via the extension 5 to a pressure piece 8 and thence by projections 13 on arms 9 (one shown) to a plurality of independently settable contact systems the pressure piece 8 is pivotally seated for free movement on the end 6 of the extension 5 by means of co-operating shapes engaging within the recess 7, and the projection 13 on each arm has a pointed nose portion which slidably abuts on the upper side of a contact system blade 12 for the application of the operating force required to close the contacts 15, 16 and a further pointed portion of rectangular section (22, 21 of Fig. 3, not shown) which engages within a slot 14 in the blade with minimal clearance in the direction of the major axis of the blade to ensure the application of constant leverage to each contact system and with substantial clearance transversely to the axis to permit the relative movement and rocking which arises during their independent operation. Fig. 2 (not shown) illustrates an arrangement for two contact systems but the invention can be applied to a greater number which are symmetrically arranged about the rotational axis of the pressure piece.
GB2356773A 1972-05-18 1973-05-17 Fluid pressure responsive electrical switching device Expired GB1413091A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7217847A FR2184479B2 (en) 1972-05-18 1972-05-18

Publications (1)

Publication Number Publication Date
GB1413091A true GB1413091A (en) 1975-11-05

Family

ID=9098745

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2356773A Expired GB1413091A (en) 1972-05-18 1973-05-17 Fluid pressure responsive electrical switching device

Country Status (6)

Country Link
DE (1) DE2325303C3 (en)
ES (1) ES414868A1 (en)
FR (1) FR2184479B2 (en)
GB (1) GB1413091A (en)
IT (1) IT987729B (en)
YU (1) YU36413B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7537116U (en) * 1975-11-22 1976-05-13 Europe Manufacturing Trust Reg., Vaduz Arrangement in an electrical switch
US4356365A (en) * 1980-10-24 1982-10-26 Edison International, Inc. Air operated DC switch
DE8103768U1 (en) * 1981-02-12 1981-09-24 Eaton S.A.M., Monaco "Pressure Operated Electrical Switching Device"

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2057445A5 (en) * 1969-08-20 1971-05-21 Europ Manufacturing Tru

Also Published As

Publication number Publication date
DE2325303A1 (en) 1973-11-29
IT987729B (en) 1975-03-20
YU36413B (en) 1983-06-30
FR2184479A2 (en) 1973-12-28
YU131673A (en) 1981-11-13
DE2325303B2 (en) 1981-01-08
ES414868A1 (en) 1976-02-01
DE2325303C3 (en) 1981-10-01
FR2184479B2 (en) 1978-05-12

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Legal Events

Date Code Title Description
PS Patent sealed
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee