GB8914889D0 - Keypad assembly - Google Patents

Keypad assembly

Info

Publication number
GB8914889D0
GB8914889D0 GB898914889A GB8914889A GB8914889D0 GB 8914889 D0 GB8914889 D0 GB 8914889D0 GB 898914889 A GB898914889 A GB 898914889A GB 8914889 A GB8914889 A GB 8914889A GB 8914889 D0 GB8914889 D0 GB 8914889D0
Authority
GB
United Kingdom
Prior art keywords
keypad assembly
keypad
assembly
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.)
Granted
Application number
GB898914889A
Other versions
GB2233283B (en
GB2233283A (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.)
Nokia Mobile Phones UK Ltd
Original Assignee
Technophone 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 Technophone Ltd filed Critical Technophone Ltd
Priority to GB8914889A priority Critical patent/GB2233283B/en
Publication of GB8914889D0 publication Critical patent/GB8914889D0/en
Priority to EP19900305291 priority patent/EP0405735B1/en
Priority to DE1990617956 priority patent/DE69017956T2/en
Publication of GB2233283A publication Critical patent/GB2233283A/en
Application granted granted Critical
Publication of GB2233283B publication Critical patent/GB2233283B/en
Anticipated expiration legal-status Critical
Revoked 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
    • H01H13/705—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 characterised by construction, mounting or arrangement of operating parts, e.g. push-buttons or keys
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2217/00—Facilitation of operation; Human engineering
    • H01H2217/01—Off centre actuation
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2221/00—Actuators
    • H01H2221/06—Actuators to avoid sticking in on position
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2223/00—Casings
    • H01H2223/034—Bezel
    • H01H2223/036—Bezel forming chamfered apertures for keys
GB8914889A 1989-06-29 1989-06-29 Keypad assembly Revoked GB2233283B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB8914889A GB2233283B (en) 1989-06-29 1989-06-29 Keypad assembly
EP19900305291 EP0405735B1 (en) 1989-06-29 1990-05-16 Keypad assembly
DE1990617956 DE69017956T2 (en) 1989-06-29 1990-05-16 Keyboard layout.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8914889A GB2233283B (en) 1989-06-29 1989-06-29 Keypad assembly

Publications (3)

Publication Number Publication Date
GB8914889D0 true GB8914889D0 (en) 1989-08-23
GB2233283A GB2233283A (en) 1991-01-09
GB2233283B GB2233283B (en) 1993-10-20

Family

ID=10659232

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8914889A Revoked GB2233283B (en) 1989-06-29 1989-06-29 Keypad assembly

Country Status (3)

Country Link
EP (1) EP0405735B1 (en)
DE (1) DE69017956T2 (en)
GB (1) GB2233283B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5704467A (en) * 1993-04-20 1998-01-06 Keymat Technology Limited Keypads
ATE418788T1 (en) * 2005-02-23 2009-01-15 Research In Motion Ltd ELECTRONIC HANDHELD DEVICE AND KEYBOARD WITH IMPROVED OPERABILITY AND REDUCED DIMENSIONS AND THEREOF METHOD

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1298089A (en) * 1969-02-24 1972-11-29 William Barber Sudduth Electric switch made of conducting elastomer
FR2554630B1 (en) * 1983-11-04 1986-09-19 Thomson Brandt PUSH BUTTON TYPE CONTACTOR AND USE THEREOF ON KEYBOARDS
FR2576450A1 (en) * 1985-01-22 1986-07-25 Hutchinson Keyboard with integral control elements which are selfcentred with respect to the front face
US4636593A (en) * 1985-03-13 1987-01-13 Motorola Inc. Light conducting, elastomeric membrane keypad
JPH0350585Y2 (en) * 1985-11-07 1991-10-29

Also Published As

Publication number Publication date
EP0405735A2 (en) 1991-01-02
GB2233283B (en) 1993-10-20
DE69017956T2 (en) 1995-11-23
GB2233283A (en) 1991-01-09
DE69017956D1 (en) 1995-04-27
EP0405735A3 (en) 1991-10-23
EP0405735B1 (en) 1995-03-22

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Legal Events

Date Code Title Description
773K Patent revoked under sect. 73(2)/1977