CA1126834A - Electrical keyswitch - Google Patents

Electrical keyswitch

Info

Publication number
CA1126834A
CA1126834A CA347,033A CA347033A CA1126834A CA 1126834 A CA1126834 A CA 1126834A CA 347033 A CA347033 A CA 347033A CA 1126834 A CA1126834 A CA 1126834A
Authority
CA
Canada
Prior art keywords
core
plunger
keyswitch
base
legs
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
CA347,033A
Other languages
English (en)
French (fr)
Inventor
Raymond Barnoski
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
Application granted granted Critical
Publication of CA1126834A publication Critical patent/CA1126834A/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

Landscapes

  • Push-Button Switches (AREA)
  • Electronic Switches (AREA)
CA347,033A 1979-03-05 1980-03-05 Electrical keyswitch Expired CA1126834A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/017,875 US4227163A (en) 1979-03-05 1979-03-05 Electrical keyswitch
US017,875 1979-03-05

Publications (1)

Publication Number Publication Date
CA1126834A true CA1126834A (en) 1982-06-29

Family

ID=21785023

Family Applications (1)

Application Number Title Priority Date Filing Date
CA347,033A Expired CA1126834A (en) 1979-03-05 1980-03-05 Electrical keyswitch

Country Status (11)

Country Link
US (1) US4227163A (enExample)
JP (1) JPS55130019A (enExample)
AR (1) AR220820A1 (enExample)
AU (1) AU537913B2 (enExample)
BR (1) BR8001279A (enExample)
CA (1) CA1126834A (enExample)
DE (1) DE3008088A1 (enExample)
FR (1) FR2451132A1 (enExample)
GB (1) GB2047035B (enExample)
IT (1) IT1130267B (enExample)
MX (1) MX147397A (enExample)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7906931A (nl) * 1979-09-18 1981-03-20 Philips Nv Druktoetsschakelaar.
JPS6136020Y2 (enExample) * 1980-06-09 1986-10-20
DE3373990D1 (en) * 1982-04-15 1987-11-12 Standard Telephon & Radio Ag Key element
US4450332A (en) * 1982-08-25 1984-05-22 General Instrument Corporation Keyswitch design
DE8906891U1 (de) * 1989-06-05 1990-07-19 Cherry-Mikroschalter Gmbh, 8572 Auerbach Tastenelement mit Dämpfungsfedern
US4988965A (en) * 1990-03-26 1991-01-29 The Chamberlain Group, Inc. Reed switch holder assembly
US5406277A (en) * 1993-04-12 1995-04-11 Lee; Tony Structure of the keypad for keyboard
US7011341B2 (en) * 2003-06-27 2006-03-14 Trw Vehicle Safety Systems Inc. Four-point vehicle occupant restraint system with linked lap belt retractors
US8828350B2 (en) 2004-06-02 2014-09-09 Abb Technology Ltd. Gas recovery of sulphur hexafluoride
US20110142522A1 (en) * 2009-12-11 2011-06-16 Bert Yeh Typing to generate electricity
CA2959057A1 (en) * 2014-08-29 2016-03-03 Automatic Bar Controls, Inc. Beverage dispensing apparatus with sensor assembly for sensing dispensing of beverage
CN110098078B (zh) * 2018-11-20 2024-05-03 东莞璟阳电子科技有限公司 一种可变力按键

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3638221A (en) * 1969-11-24 1972-01-25 Illinois Tool Works Solid-state keyboard
SE394913B (sv) * 1973-08-15 1977-07-18 Illinois Tool Works Tangentbordsstromstellare
US4099176A (en) * 1974-05-30 1978-07-04 Illinois Tool Works Inc. Magnetic key switch having a removable support assembly
US3902032A (en) * 1974-06-07 1975-08-26 Illinois Tool Works Electrical switch with improved contact structure
US3978474A (en) * 1975-07-15 1976-08-31 Illinois Tool Works Inc. Keyboard with n-key lockout and two-key rollover protection
US4028696A (en) * 1976-01-26 1977-06-07 Illinois Tool Works Inc. Double depression magnetic keyswitch
US4017850A (en) * 1976-02-02 1977-04-12 Illinois Tool Works Inc. Magnetic keyswitch with two-piece support assembly

Also Published As

Publication number Publication date
US4227163A (en) 1980-10-07
AU537913B2 (en) 1984-07-19
BR8001279A (pt) 1981-09-15
DE3008088C2 (enExample) 1989-06-08
GB2047035A (en) 1980-11-19
GB2047035B (en) 1983-02-02
FR2451132B1 (enExample) 1984-06-29
DE3008088A1 (de) 1980-09-18
IT8020332A0 (it) 1980-03-04
AR220820A1 (es) 1980-11-28
JPS55130019A (en) 1980-10-08
FR2451132A1 (fr) 1980-10-03
IT1130267B (it) 1986-06-11
AU5608880A (en) 1980-09-11
MX147397A (es) 1982-11-29

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Legal Events

Date Code Title Description
MKEX Expiry