CA1032996A - Dome-shaped conductive switch element for a keyboard - Google Patents

Dome-shaped conductive switch element for a keyboard

Info

Publication number
CA1032996A
CA1032996A CA227,865A CA227865A CA1032996A CA 1032996 A CA1032996 A CA 1032996A CA 227865 A CA227865 A CA 227865A CA 1032996 A CA1032996 A CA 1032996A
Authority
CA
Canada
Prior art keywords
dome
keyboard
switch element
shaped conductive
conductive switch
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
CA227,865A
Other languages
French (fr)
Inventor
Thomas J. Studebaker
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.)
Mohawk Data Sciences Corp
Original Assignee
Mohawk Data Sciences Corp
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 Mohawk Data Sciences Corp filed Critical Mohawk Data Sciences Corp
Application granted granted Critical
Publication of CA1032996A publication Critical patent/CA1032996A/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
    • H01H13/48—Snap-action arrangements depending upon deformation of elastic members using buckling of disc springs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2227/00—Dimensions; Characteristics
    • H01H2227/026—Separate dome contact
CA227,865A 1974-06-14 1975-05-27 Dome-shaped conductive switch element for a keyboard Expired CA1032996A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US479429A US3908109A (en) 1974-06-14 1974-06-14 Dome shaped switch member

Publications (1)

Publication Number Publication Date
CA1032996A true CA1032996A (en) 1978-06-13

Family

ID=23903970

Family Applications (1)

Application Number Title Priority Date Filing Date
CA227,865A Expired CA1032996A (en) 1974-06-14 1975-05-27 Dome-shaped conductive switch element for a keyboard

Country Status (3)

Country Link
US (1) US3908109A (en)
JP (1) JPS519277A (en)
CA (1) CA1032996A (en)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3967084A (en) * 1975-05-12 1976-06-29 Kb-Denver, Inc. Keyboard switch assemblies having two foot support legs on dome-shaped contact member
FR2343323A1 (en) * 1976-03-05 1977-09-30 Schoeller & Co Elektrotech DECLICK SWITCH ESPECIALLY FOR TELEVISION AND RADIO RECEIVERS
US4085306A (en) * 1977-06-09 1978-04-18 Kb-Denver, Inc. Keyboard switch assemblies
JPS5479482U (en) * 1977-11-17 1979-06-06
JPS5482362U (en) * 1977-11-22 1979-06-11
FR2432205A1 (en) * 1978-07-28 1980-02-22 Rode Stucky Pushbutton switch esp. for calculators and tv controls - has sprung snap action with electrode of shallow pyramidal shape
FR2442502A1 (en) * 1978-11-24 1980-06-20 Orega Cifte TOUCH TAP TOUCH KEYBOARD
US4314117A (en) * 1980-07-24 1982-02-02 Re-Al, Inc. Membrane contact switch
US4398074A (en) * 1981-06-12 1983-08-09 Oak Industries Inc. Low profile switch having a sealed interior
US4532376A (en) * 1983-05-26 1985-07-30 Sanders Associates, Inc. Electronic pen with switching mechanism for selectively providing tactile or non-tactile feel
US4703139A (en) * 1983-09-06 1987-10-27 Kb Denver, Inc. Method in a snap dome switch keyboard assembly for reducing contact bounce time
JPS62136026U (en) * 1986-02-22 1987-08-27
US4933522A (en) * 1989-03-07 1990-06-12 Itt Corporation Flanged snap dome
US6222525B1 (en) 1992-03-05 2001-04-24 Brad A. Armstrong Image controllers with sheet connected sensors
US8674932B2 (en) 1996-07-05 2014-03-18 Anascape, Ltd. Image controller
US7278878B2 (en) 2004-03-29 2007-10-09 Mechanical Answers Llc Method and apparatus for A.C. outlet having grounds-out receptacles
US20080277251A1 (en) * 2007-05-09 2008-11-13 Snaptron, Inc. Electrical switch apparatus and methods
EP2240946A1 (en) * 2008-01-16 2010-10-20 Snaptron, Inc. Tactile apparatus and methods

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3684842A (en) * 1970-07-01 1972-08-15 Texas Instruments Inc Pushbutton keyboard switch assembly with improved over center diaphragm contact
US3808384A (en) * 1971-06-01 1974-04-30 Texas Instruments Inc Pushbutton keyboard system
US3749859A (en) * 1972-04-19 1973-07-31 Colorado Instr Inc Keyboard switch assembly with improved hermetically sealed diaphragm contact structure
BE795425A (en) * 1972-11-20 1973-05-29 Texas Instruments Inc ADVANCED PUSH-BUTTON KEYPAD SYSTEM
US3796843A (en) * 1973-01-02 1974-03-12 Bomar Instr Corp Calculator keyboard switch with disc spring contact and printed circuit board

Also Published As

Publication number Publication date
US3908109A (en) 1975-09-23
JPS519277A (en) 1976-01-24

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