GB8900388D0 - Push-button keypads - Google Patents

Push-button keypads

Info

Publication number
GB8900388D0
GB8900388D0 GB898900388A GB8900388A GB8900388D0 GB 8900388 D0 GB8900388 D0 GB 8900388D0 GB 898900388 A GB898900388 A GB 898900388A GB 8900388 A GB8900388 A GB 8900388A GB 8900388 D0 GB8900388 D0 GB 8900388D0
Authority
GB
United Kingdom
Prior art keywords
push
button keypads
keypads
button
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Withdrawn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
GB898900388A
Other versions
GB2213648A (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.)
Marconi Electronic Devices Ltd
Original Assignee
Marconi Electronic Devices 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 Marconi Electronic Devices Ltd filed Critical Marconi Electronic Devices Ltd
Publication of GB8900388D0 publication Critical patent/GB8900388D0/en
Publication of GB2213648A publication Critical patent/GB2213648A/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Withdrawn legal-status Critical Current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
    • H01H13/78—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 characterised by the contacts or the contact sites
    • H01H13/785—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 characterised by the contacts or the contact sites characterised by the material of the contacts, e.g. conductive polymers
    • 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
    • H01H2201/00—Contacts
    • H01H2201/022—Material
    • H01H2201/032—Conductive polymer; Rubber
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2203/00—Form of contacts
    • H01H2203/036—Form of contacts to solve particular problems
    • H01H2203/052—Form of contacts to solve particular problems for backlighted keyboards
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2209/00—Layers
    • H01H2209/024—Properties of the substrate
    • H01H2209/038—Properties of the substrate transparent
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2219/00—Legends
    • H01H2219/002—Legends replaceable; adaptable
    • H01H2219/006—Snap mounting
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2219/00—Legends
    • H01H2219/002—Legends replaceable; adaptable
    • H01H2219/018—Electroluminescent panel
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2221/00—Actuators
    • H01H2221/002—Actuators integral with membrane
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2223/00—Casings
    • H01H2223/002—Casings sealed
GB8900388A 1988-01-08 1989-01-09 Push-button keypads Withdrawn GB2213648A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB888800369A GB8800369D0 (en) 1988-01-08 1988-01-08 Push-button keypads

Publications (2)

Publication Number Publication Date
GB8900388D0 true GB8900388D0 (en) 1989-03-08
GB2213648A GB2213648A (en) 1989-08-16

Family

ID=10629658

Family Applications (2)

Application Number Title Priority Date Filing Date
GB888800369A Pending GB8800369D0 (en) 1988-01-08 1988-01-08 Push-button keypads
GB8900388A Withdrawn GB2213648A (en) 1988-01-08 1989-01-09 Push-button keypads

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB888800369A Pending GB8800369D0 (en) 1988-01-08 1988-01-08 Push-button keypads

Country Status (4)

Country Link
EP (1) EP0323916A3 (en)
DK (1) DK729588A (en)
GB (2) GB8800369D0 (en)
NO (1) NO890063L (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5555550A (en) * 1990-10-01 1996-09-10 Motorola, Inc. Keypad apparatus with integral display indicators
US6040534A (en) * 1998-10-13 2000-03-21 Prince Corporation Integrally molded switch lighting and electronics
EP1526558A1 (en) * 2003-10-20 2005-04-27 Wincor Nixdorf International GmbH Key board

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1019248A (en) * 1974-04-01 1977-10-18 Mohabatullah Sobhani Elastomeric diaphragm switch assembly
FR2453487A1 (en) * 1979-04-03 1980-10-31 Orega Electro Mecanique KEYPAD WITH LIGHTS AND LIGHTS, ESPECIALLY FOR A CONTROL UNIT
US4310839A (en) * 1979-11-23 1982-01-12 Raytheon Company Interactive display system with touch data entry
GB2153078B (en) * 1983-10-27 1986-10-15 Ti Switch/display units
DE3511496A1 (en) * 1985-03-29 1986-10-09 Telefunken electronic GmbH, 7100 Heilbronn Key-switching device having a transparent covering film
JPH0439613Y2 (en) * 1986-05-23 1992-09-17

Also Published As

Publication number Publication date
NO890063L (en) 1989-07-10
NO890063D0 (en) 1989-01-06
EP0323916A2 (en) 1989-07-12
DK729588D0 (en) 1988-12-29
GB2213648A (en) 1989-08-16
DK729588A (en) 1989-07-09
GB8800369D0 (en) 1988-02-10
EP0323916A3 (en) 1990-12-27

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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)