GB1312117A - Snap action control devices - Google Patents

Snap action control devices

Info

Publication number
GB1312117A
GB1312117A GB1691670A GB1312117DA GB1312117A GB 1312117 A GB1312117 A GB 1312117A GB 1691670 A GB1691670 A GB 1691670A GB 1312117D A GB1312117D A GB 1312117DA GB 1312117 A GB1312117 A GB 1312117A
Authority
GB
United Kingdom
Prior art keywords
blade
contact
bolts
acting
snap action
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
GB1691670A
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.)
Carlstedt S B F
Original Assignee
Carlstedt S B F
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 Carlstedt S B F filed Critical Carlstedt S B F
Priority claimed from DE19702016898 external-priority patent/DE2016898C/en
Publication of GB1312117A publication Critical patent/GB1312117A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B5/00—Transducers converting variations of physical quantities, e.g. expressed by variations in positions of members, into fluid-pressure variations or vice versa; Varying fluid pressure as a function of variations of a plurality of fluid pressures or variations of other quantities
    • 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
    • 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
    • H01H5/18—Energy stored by deformation of elastic members by flexing of blade 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
    • H01H5/18—Energy stored by deformation of elastic members by flexing of blade springs
    • H01H5/22—Energy stored by deformation of elastic members by flexing of blade springs blade spring with at least one snap-acting leg and at least one separate contact-carrying or contact-actuating leg

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Switches Operated By Changes In Physical Conditions (AREA)

Abstract

1312117 Pressure responsive switches SIXTEN ENGLESSON TEKNISK KONSULT AB and S B F CARLSTEDT 9 April 1970 16916/70 Heading H1N [Also in Division F1] A fluid pressure switch has a blade spring of 8-shape with both ends clamped and forced apart so that the blade is snap-acting; a contact carrying arm 62 projects from a part of the S-shape which moves much further than the operating point during snap action. The blade 36 is clamped to a support 42 by bolts 50, 70. The lower bolt 50 has an eecentric portion 52 for adjusting the deformation of the blade. A diaphragm 16 responsive to fluid pressure is in contact with a piston 24 acting through a push rod 32 on the blade at a point substantially on the centre line through bolts 50, 70 (Fig. 2, not shown). The blade has two loops 54, 58 extending on opposite sides of the centre line, the loop 58 being bigger and supporting the arm 62. The contact 68 carried by the blade moves between an adjustable fixed contact 80 and an adjustable back stop 90 which may also be a contact and which is coupled to a setting knob 92.
GB1691670A 1970-04-09 1970-04-09 Snap action control devices Expired GB1312117A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19702016898 DE2016898C (en) 1970-04-09 Pressure dependent electrical switch
GB1691670 1970-04-09
US00027693A US3830995A (en) 1970-04-09 1970-04-13 Control device with snap switch

Publications (1)

Publication Number Publication Date
GB1312117A true GB1312117A (en) 1973-04-04

Family

ID=27182520

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1691670A Expired GB1312117A (en) 1970-04-09 1970-04-09 Snap action control devices

Country Status (2)

Country Link
US (1) US3830995A (en)
GB (1) GB1312117A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2647968A (en) * 1950-10-02 1953-08-04 Fasco Industries Electric switch assembly
US2766350A (en) * 1953-11-17 1956-10-09 Marcel E Gres Diaphragm actuated snap action switch
US2899512A (en) * 1956-12-13 1959-08-11 burch
US3133169A (en) * 1960-10-20 1964-05-12 Texas Instruments Inc Calibrating means for a snap-acting switching mechanism
GB1157289A (en) * 1966-09-09 1969-07-02 Stenberg Flygt Ab Electric Pressure Relay

Also Published As

Publication number Publication date
US3830995A (en) 1974-08-20
DE2016898A1 (en) 1971-10-28
DE2016898B2 (en) 1973-02-08

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee