GB1445971A - Magnetic key switch - Google Patents

Magnetic key switch

Info

Publication number
GB1445971A
GB1445971A GB3117274A GB3117274A GB1445971A GB 1445971 A GB1445971 A GB 1445971A GB 3117274 A GB3117274 A GB 3117274A GB 3117274 A GB3117274 A GB 3117274A GB 1445971 A GB1445971 A GB 1445971A
Authority
GB
United Kingdom
Prior art keywords
support assembly
wedges
housing
key
switch housing
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
GB3117274A
Other languages
English (en)
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.)
Illinois Tool Works Inc
Original Assignee
Illinois Tool Works Inc
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 Illinois Tool Works Inc filed Critical Illinois Tool Works Inc
Publication of GB1445971A publication Critical patent/GB1445971A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
    • H03K17/965—Switches controlled by moving an element forming part of the switch
    • H03K17/97—Switches controlled by moving an element forming part of the switch using a magnetic movable element
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
    • H03K17/965—Switches controlled by moving an element forming part of the switch
    • H03K17/97—Switches controlled by moving an element forming part of the switch using a magnetic movable element
    • H03K2017/9706—Inductive element

Landscapes

  • Push-Button Switches (AREA)
  • Input From Keyboards Or The Like (AREA)
  • Manufacture Of Switches (AREA)
GB3117274A 1973-08-15 1974-07-15 Magnetic key switch Expired GB1445971A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US38851073A 1973-08-15 1973-08-15

Publications (1)

Publication Number Publication Date
GB1445971A true GB1445971A (en) 1976-08-11

Family

ID=23534407

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3117274A Expired GB1445971A (en) 1973-08-15 1974-07-15 Magnetic key switch

Country Status (11)

Country Link
JP (1) JPS5816284B2 (https=)
AU (1) AU474631B2 (https=)
BR (1) BR7404154D0 (https=)
CA (1) CA999374A (https=)
CH (1) CH586460A5 (https=)
DE (1) DE2419410C3 (https=)
FR (1) FR2241169B1 (https=)
GB (1) GB1445971A (https=)
IT (1) IT1019951B (https=)
NL (1) NL163082C (https=)
SE (1) SE394913B (https=)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107978479A (zh) * 2017-12-30 2018-05-01 苏州富强科技有限公司 键盘选择性保压组件

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5856595Y2 (ja) * 1978-06-30 1983-12-27 康之 川名 蒲焼機
US4227163A (en) * 1979-03-05 1980-10-07 Illinois Tool Works Inc. Electrical keyswitch
DE3127053C2 (de) * 1981-07-09 1983-07-21 Vacuumschmelze Gmbh, 6450 Hanau Sensortaste zur kontaktlosen Erzeugung eines elektrischen Signals bei Tastendruck
DE3360872D1 (en) * 1982-04-15 1985-10-31 Standard Telephon & Radio Ag Keyboard
JPS61112082U (https=) * 1984-12-25 1986-07-15

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107978479A (zh) * 2017-12-30 2018-05-01 苏州富强科技有限公司 键盘选择性保压组件
CN107978479B (zh) * 2017-12-30 2024-04-12 苏州富强科技有限公司 键盘选择性保压组件

Also Published As

Publication number Publication date
NL163082B (nl) 1980-02-15
FR2241169B1 (https=) 1982-10-22
JPS5040234A (https=) 1975-04-12
NL7405669A (nl) 1975-02-18
SE394913B (sv) 1977-07-18
DE2419410A1 (de) 1975-02-27
FR2241169A1 (https=) 1975-03-14
BR7404154D0 (pt) 1975-05-20
NL163082C (nl) 1980-07-15
CH586460A5 (https=) 1977-03-31
JPS5816284B2 (ja) 1983-03-30
AU474631B2 (en) 1976-07-29
SE7404028L (https=) 1975-02-17
IT1019951B (it) 1977-11-30
DE2419410C3 (de) 1978-08-24
DE2419410B2 (de) 1977-12-29
AU6934174A (en) 1975-11-27
CA999374A (en) 1976-11-02

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Legal Events

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