GB2084801B - Keypad buttons - Google Patents

Keypad buttons

Info

Publication number
GB2084801B
GB2084801B GB8031451A GB8031451A GB2084801B GB 2084801 B GB2084801 B GB 2084801B GB 8031451 A GB8031451 A GB 8031451A GB 8031451 A GB8031451 A GB 8031451A GB 2084801 B GB2084801 B GB 2084801B
Authority
GB
United Kingdom
Prior art keywords
keypad buttons
keypad
buttons
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
GB8031451A
Other versions
GB2084801A (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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB8031451A priority Critical patent/GB2084801B/en
Priority to IE961/81A priority patent/IE51113B1/en
Priority to ZA00812888A priority patent/ZA812888B/en
Publication of GB2084801A publication Critical patent/GB2084801A/en
Application granted granted Critical
Publication of GB2084801B publication Critical patent/GB2084801B/en
Priority to HK206/87A priority patent/HK20687A/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
    • H01H13/70—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
    • H01H2209/00—Layers
    • H01H2209/068—Properties of the membrane
    • H01H2209/078—Conductive rubber
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2215/00—Tactile feedback
    • H01H2215/004—Collapsible dome or bubble
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2221/00—Actuators
    • H01H2221/008—Actuators other then push button
    • H01H2221/016—Lever; Rocker
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2221/00—Actuators
    • H01H2221/036—Return force
    • H01H2221/044—Elastic part on actuator or casing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2221/00—Actuators
    • H01H2221/054—Actuators connected by flexible webs
GB8031451A 1980-09-30 1980-09-30 Keypad buttons Expired GB2084801B (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB8031451A GB2084801B (en) 1980-09-30 1980-09-30 Keypad buttons
IE961/81A IE51113B1 (en) 1980-09-30 1981-04-29 A push-button electrical switch arrangement
ZA00812888A ZA812888B (en) 1980-09-30 1981-04-30 Keypad button detail
HK206/87A HK20687A (en) 1980-09-30 1987-03-05 A push-button electrical switch arrangement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8031451A GB2084801B (en) 1980-09-30 1980-09-30 Keypad buttons

Publications (2)

Publication Number Publication Date
GB2084801A GB2084801A (en) 1982-04-15
GB2084801B true GB2084801B (en) 1984-05-16

Family

ID=10516369

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8031451A Expired GB2084801B (en) 1980-09-30 1980-09-30 Keypad buttons

Country Status (4)

Country Link
GB (1) GB2084801B (en)
HK (1) HK20687A (en)
IE (1) IE51113B1 (en)
ZA (1) ZA812888B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS644036U (en) * 1987-06-29 1989-01-11
US5481074A (en) * 1992-08-18 1996-01-02 Key Tronic Corporation Computer keyboard with cantilever switch and actuator design
US5360955A (en) * 1992-08-18 1994-11-01 Key Tronic Corporation Computer keyboard with cantilever switch design and improved PCB/switch membrane interface
DE4405754A1 (en) * 1994-02-23 1995-08-24 Sel Alcatel Ag Pushbutton arrangement
GB2306784A (en) * 1995-10-20 1997-05-07 Delco Electronic Overseas Corp Rocker switch assembly
US20070199805A1 (en) * 2004-03-29 2007-08-30 Pioneer Corporation Hinge Structure and Hinge Structure Member

Also Published As

Publication number Publication date
GB2084801A (en) 1982-04-15
IE51113B1 (en) 1986-10-01
IE810961L (en) 1982-03-30
HK20687A (en) 1987-03-13
ZA812888B (en) 1982-05-26

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Legal Events

Date Code Title Description
746 Register noted 'licences of right' (sect. 46/1977)
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PE20 Patent expired after termination of 20 years

Effective date: 20000929