GB1169431A - Electric Pressure-Controlled Snap Switch. - Google Patents

Electric Pressure-Controlled Snap Switch.

Info

Publication number
GB1169431A
GB1169431A GB4967/67A GB496767A GB1169431A GB 1169431 A GB1169431 A GB 1169431A GB 4967/67 A GB4967/67 A GB 4967/67A GB 496767 A GB496767 A GB 496767A GB 1169431 A GB1169431 A GB 1169431A
Authority
GB
United Kingdom
Prior art keywords
spring
lever
pressure
feb
arm
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
GB4967/67A
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.)
PATINVEST PATENT-UND INVESTMENT AG
Patinvest Patent und Investment AG
Original Assignee
PATINVEST PATENT-UND INVESTMENT AG
Patinvest Patent und Investment AG
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
Priority claimed from DE1966P0026719 external-priority patent/DE1939186U/en
Application filed by PATINVEST PATENT-UND INVESTMENT AG, Patinvest Patent und Investment AG filed Critical PATINVEST PATENT-UND INVESTMENT AG
Publication of GB1169431A publication Critical patent/GB1169431A/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
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/02—Details
    • H01H13/26—Snap-action arrangements depending upon deformation of elastic members
    • H01H13/28—Snap-action arrangements depending upon deformation of elastic members using compression or extension of coil springs
    • 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
    • H01H5/04—Energy stored by deformation of elastic members
    • H01H5/06—Energy stored by deformation of elastic members by compression or extension of coil springs

Landscapes

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

Abstract

1,169,431. Fluid-pressure actuated switches. PATINVEST PATENTUND INVESTMENT A.G. 1 Feb., 1967 [8 Feb., 1966; 15 Feb., 1966], No. 4967/67. Heading H1N. In a pressure controlled snap-action switch in which a contact spring 9, Fig. 2, is moved between fixed and adjustable contacts 11, 12 by a snap spring 13 attached to a pressureactuated lever 20 acting against a pressure adjusting spring 6, a variable compensating torque is applied to the lever 20 by an additional spring 16 acting in opposition to the spring 6. The arrangement is such that low spring resistance is offered to the lever 20 at the lower end of the pressure range to give an adequate range of movement between the lowest settable change point and the bottom rechange point. This enables a stronger spring 6 to be used whereby a high-pressure range of settings by nut 8 is obtained. In the example a leaf spring 16 acts under compression between the lever 20 and an adjustable pivot point 17 on the casing 32. As the pressure increases and the arm 20 moves upwards the compression on the spring 16 gradually reduces while a moment arm about the effective pivot of the arm 20 increases giving at first a progressively increasing torque followed by a progressively reducing torque assisting the movement of the lever 20. In the arrangement described, the diaphragm 1 actuates three independent switches through tappets 4 attached to a flexible diaphragm plate 3 and loosely engaging in separate levers 20 to permit tilting of the diaphragm when actuating switches set different pressures. The switch cover 7 is engaged by a press fit under a flexible projecting edge 31 of the main housing wall 30.
GB4967/67A 1966-02-08 1967-02-01 Electric Pressure-Controlled Snap Switch. Expired GB1169431A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP0038726 1966-02-08
DE1966P0026719 DE1939186U (en) 1966-02-15 1966-02-15 SNAP SWITCHES, IN PARTICULAR FOR WASHING MACHINES OD. DGL.

Publications (1)

Publication Number Publication Date
GB1169431A true GB1169431A (en) 1969-11-05

Family

ID=25990042

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4967/67A Expired GB1169431A (en) 1966-02-08 1967-02-01 Electric Pressure-Controlled Snap Switch.

Country Status (6)

Country Link
US (1) US3436502A (en)
AU (1) AU420643B2 (en)
CH (1) CH450522A (en)
DE (1) DE1665312B2 (en)
GB (1) GB1169431A (en)
SE (1) SE328930B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2438832A1 (en) * 1978-10-13 1980-05-09 Zangenstein Elektro MEMBRANE CAPSULE
DE3826749C1 (en) * 1988-08-05 1989-11-02 Eugen 8000 Muenchen De Ehs

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1217480A (en) * 1968-06-18 1970-12-31 Patinvest Electric pressure-controlled snap switch
DE2027330C3 (en) * 1970-06-03 1973-09-13 Standard Elektrik Lorenz Ag, 7000 Stuttgart Flat electromagnetic relay
US3856998A (en) * 1973-06-01 1974-12-24 Burroughs Corp Keyboard switch assembly with improved operating means
IT994158B (en) * 1973-08-21 1975-10-20 Texas Instruments Italia Spa LOCKING DEVICE WITH VOLTMETRIC OPERATED THERMAL DELAY SWITCH FOR DOORS
US5001317A (en) * 1989-06-30 1991-03-19 Louis D. Atkinson Fluid activated switch apparatus
EP0507002A3 (en) * 1991-04-02 1992-12-09 Huba Control Ag Pressure switch
US6346681B1 (en) * 1995-09-28 2002-02-12 Ronald S. Joyce Pressure switch
ES2155332A1 (en) * 1998-05-22 2001-05-01 Fagor S Coop Water level regulator in a dishwaser
US6740828B1 (en) 2003-08-08 2004-05-25 Claudio R. Dacal Arm and safety switch
ITTO20090624A1 (en) * 2009-08-07 2011-02-08 Illinois Tool Works PRESSURE SENSOR FOR APPLIANCES WITH ADDITIONAL SAFETY FUNCTION

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2636093A (en) * 1950-08-09 1953-04-21 Magnavox Co Pressure switch
US2813944A (en) * 1954-11-12 1957-11-19 Carter Parts Company Pressure switch
US2934618A (en) * 1955-07-11 1960-04-26 Controls Co Of America Fluid pressure responsive switch

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2438832A1 (en) * 1978-10-13 1980-05-09 Zangenstein Elektro MEMBRANE CAPSULE
DE3826749C1 (en) * 1988-08-05 1989-11-02 Eugen 8000 Muenchen De Ehs
EP0353465A2 (en) * 1988-08-05 1990-02-07 Eugen Ehs Pressure operated switchgear
EP0353465A3 (en) * 1988-08-05 1991-04-10 Eugen Ehs Pressure operated switchgear

Also Published As

Publication number Publication date
US3436502A (en) 1969-04-01
DE1665312B2 (en) 1975-11-06
DE1665312A1 (en) 1970-12-03
CH450522A (en) 1968-01-31
AU420643B2 (en) 1972-01-19
AU4421368A (en) 1970-04-09
SE328930B (en) 1970-09-28

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees