GB1527342A - Microswitches - Google Patents

Microswitches

Info

Publication number
GB1527342A
GB1527342A GB736277A GB736277A GB1527342A GB 1527342 A GB1527342 A GB 1527342A GB 736277 A GB736277 A GB 736277A GB 736277 A GB736277 A GB 736277A GB 1527342 A GB1527342 A GB 1527342A
Authority
GB
United Kingdom
Prior art keywords
micro
switch
spring
manuallyoperable
phototransistor
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
GB736277A
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB736277A priority Critical patent/GB1527342A/en
Publication of GB1527342A publication Critical patent/GB1527342A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H01H13/36—Snap-action arrangements depending upon deformation of elastic members using flexing of blade springs
    • H01H13/38—Single blade moved across dead-centre position
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/02—Bases, casings, or covers
    • H01H9/0271—Bases, casings, or covers structurally combining a switch and an electronic component
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/54—Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere
    • H01H9/547—Combinations of mechanical switches and static switches, the latter being controlled by the former

Landscapes

  • Push-Button Switches (AREA)

Abstract

1527342 Photo-electric switch STANDARD TELEPHONES & CABLES Ltd 22 Feb 1977 7362/77 Heading G1A [Also in Division H1] To avoid spurious switching due to contact bounce, a micro-switch, in which a manuallyoperable push-button 2 snaps a bowed strip-like spring member 4 to reversed curvature by acting on a point between its centre and one end, has an extension 13 on the other end of spring 4 which is moved by the snap action to act as a shutter between a light-emitting diode 10 and a phototransistor 11 whose response controls a Schmitt trigger circuit mounted on a thick film substrate 12 and which provides the micro-switch output via cable 8.
GB736277A 1977-02-22 1977-02-22 Microswitches Expired GB1527342A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB736277A GB1527342A (en) 1977-02-22 1977-02-22 Microswitches

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB736277A GB1527342A (en) 1977-02-22 1977-02-22 Microswitches

Publications (1)

Publication Number Publication Date
GB1527342A true GB1527342A (en) 1978-10-04

Family

ID=9831671

Family Applications (1)

Application Number Title Priority Date Filing Date
GB736277A Expired GB1527342A (en) 1977-02-22 1977-02-22 Microswitches

Country Status (1)

Country Link
GB (1) GB1527342A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4894530A (en) * 1987-03-31 1990-01-16 Honeywell, Inc. Fiber optic snap acting switch

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4894530A (en) * 1987-03-31 1990-01-16 Honeywell, Inc. Fiber optic snap acting switch

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee