GB8711693D0 - Membrane keyboard - Google Patents

Membrane keyboard

Info

Publication number
GB8711693D0
GB8711693D0 GB878711693A GB8711693A GB8711693D0 GB 8711693 D0 GB8711693 D0 GB 8711693D0 GB 878711693 A GB878711693 A GB 878711693A GB 8711693 A GB8711693 A GB 8711693A GB 8711693 D0 GB8711693 D0 GB 8711693D0
Authority
GB
United Kingdom
Prior art keywords
membrane keyboard
keyboard
membrane
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.)
Withdrawn
Application number
GB878711693A
Other versions
GB2191340A (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.)
Amalgamated Wireless Australasia Ltd
Original Assignee
Amalgamated Wireless Australasia Ltd
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 Amalgamated Wireless Australasia Ltd filed Critical Amalgamated Wireless Australasia Ltd
Publication of GB8711693D0 publication Critical patent/GB8711693D0/en
Publication of GB2191340A publication Critical patent/GB2191340A/en
Withdrawn legal-status Critical Current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
    • H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
    • H01H13/702—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2203/00—Form of contacts
    • H01H2203/02—Interspersed fingers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2203/00—Form of contacts
    • H01H2203/022—Helical networks
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2213/00—Venting
    • H01H2213/01—Venting with internal pressure of other switch sites
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2215/00—Tactile feedback
    • H01H2215/004—Collapsible dome or bubble
    • H01H2215/006—Only mechanical function
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2215/00—Tactile feedback
    • H01H2215/004—Collapsible dome or bubble
    • H01H2215/008—Part of substrate or membrane
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2215/00—Tactile feedback
    • H01H2215/03—Sound
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2219/00—Legends
    • H01H2219/002—Legends replaceable; adaptable
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2231/00—Applications
    • H01H2231/022—Telephone handset
GB08711693A 1986-05-20 1987-05-18 Interchangeable designation for membrane keyboard Withdrawn GB2191340A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPH599486 1986-05-20
AUPH933186 1986-12-04

Publications (2)

Publication Number Publication Date
GB8711693D0 true GB8711693D0 (en) 1987-06-24
GB2191340A GB2191340A (en) 1987-12-09

Family

ID=25643096

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08711693A Withdrawn GB2191340A (en) 1986-05-20 1987-05-18 Interchangeable designation for membrane keyboard

Country Status (3)

Country Link
DE (1) DE3716761A1 (en)
GB (1) GB2191340A (en)
NL (1) NL8701197A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0322515A3 (en) * 1987-12-30 1990-09-12 Hewlett-Packard Company Keyboard venting
FR2632745A1 (en) * 1988-06-13 1989-12-15 Alsthom Cgee Active keyboard implemented by programmable logic - has provision for altering function by re-programming and replacement of overlay
US4916262A (en) * 1988-11-03 1990-04-10 Motorola, Inc. Low-profile, rubber keypad
EP0489344A1 (en) * 1990-12-03 1992-06-10 I.E.E. International Electronics & Engineering S.à.r.l. Method for identifying an activated key of a keyboard
US5748114A (en) * 1993-10-26 1998-05-05 Koehn; Matthias-Reinhard Flat input keyboard for data processing machines or the like and process for producing the same
EP1039425A3 (en) * 1999-03-24 2003-06-11 Rubén Nicolas Paganini Electronic card for commercial operations and coding console for initially charging a user code in said card

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1331831A (en) * 1971-02-10 1973-09-26 Lamberson J L Electric teaching device
US3996427A (en) * 1975-01-10 1976-12-07 Texas Instruments Incorporated Pushbutton keyboard system and method of making same
US4251734A (en) * 1979-05-04 1981-02-17 Chomerics, Inc. Publications cover with display device
GB2077508A (en) * 1980-05-09 1981-12-16 Weatherley Richard Variable resistance pressure- sensitive laminate
US4314116A (en) * 1980-06-23 1982-02-02 Rogers Corporation Keyboard switch with graphic overlay
EP0163624A3 (en) * 1984-05-24 1986-06-11 "Prodata" Keyboard, particularly for data-treating machine, such as cash-register and similar
GB8423358D0 (en) * 1984-09-15 1984-11-07 Motorola Israel Ltd Flat membrane key and keyboard

Also Published As

Publication number Publication date
NL8701197A (en) 1987-12-16
GB2191340A (en) 1987-12-09
DE3716761A1 (en) 1987-11-26

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)