GB2191040B - Keypad assemblies - Google Patents

Keypad assemblies

Info

Publication number
GB2191040B
GB2191040B GB8612913A GB8612913A GB2191040B GB 2191040 B GB2191040 B GB 2191040B GB 8612913 A GB8612913 A GB 8612913A GB 8612913 A GB8612913 A GB 8612913A GB 2191040 B GB2191040 B GB 2191040B
Authority
GB
United Kingdom
Prior art keywords
keypad assemblies
keypad
assemblies
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 - Fee Related
Application number
GB8612913A
Other versions
GB2191040A (en
GB8612913D0 (en
Inventor
Steven Hawker
Paul David Blore
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.)
Telent Technologies Services Ltd
Plessey Co Ltd
Plessey Telecommunications Ltd
Original Assignee
Telent Technologies Services Ltd
Plessey Co Ltd
Plessey Telecommunications 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 Telent Technologies Services Ltd, Plessey Co Ltd, Plessey Telecommunications Ltd filed Critical Telent Technologies Services Ltd
Priority to GB8612913A priority Critical patent/GB2191040B/en
Publication of GB8612913D0 publication Critical patent/GB8612913D0/en
Publication of GB2191040A publication Critical patent/GB2191040A/en
Application granted granted Critical
Publication of GB2191040B publication Critical patent/GB2191040B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H01H2223/00—Casings
    • H01H2223/002—Casings sealed
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2233/00—Key modules
    • H01H2233/03—Key modules mounted on support plate or frame
    • H01H2233/034—Snap coupling
    • H01H2233/036—Snap coupling with limited freedom
GB8612913A 1986-05-28 1986-05-28 Keypad assemblies Expired - Fee Related GB2191040B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8612913A GB2191040B (en) 1986-05-28 1986-05-28 Keypad assemblies

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8612913A GB2191040B (en) 1986-05-28 1986-05-28 Keypad assemblies

Publications (3)

Publication Number Publication Date
GB8612913D0 GB8612913D0 (en) 1986-07-02
GB2191040A GB2191040A (en) 1987-12-02
GB2191040B true GB2191040B (en) 1990-04-18

Family

ID=10598537

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8612913A Expired - Fee Related GB2191040B (en) 1986-05-28 1986-05-28 Keypad assemblies

Country Status (1)

Country Link
GB (1) GB2191040B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017128692A1 (en) 2017-12-04 2019-06-06 Valeo Schalter Und Sensoren Gmbh Operating device with noise damping

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3836013A1 (en) * 1988-10-22 1990-04-26 Schlegel Georg Gmbh & Co Sealable push-button device, especially for electrical switches

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3721778A (en) * 1971-06-21 1973-03-20 Chomerics Inc Keyboard switch assembly with improved operator and contact structure
EP0101208A2 (en) * 1982-07-22 1984-02-22 Spiralux Limited Keyboards
EP0163874A2 (en) * 1984-04-19 1985-12-11 Alcatel SEL Aktiengesellschaft Key switch
EP0087369B1 (en) * 1982-02-24 1986-04-30 Digital Equipment Corporation Improved electronic keyboard
GB2178237A (en) * 1985-06-24 1987-02-04 Alps Electric Co Ltd Push button switch

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3721778A (en) * 1971-06-21 1973-03-20 Chomerics Inc Keyboard switch assembly with improved operator and contact structure
EP0087369B1 (en) * 1982-02-24 1986-04-30 Digital Equipment Corporation Improved electronic keyboard
EP0101208A2 (en) * 1982-07-22 1984-02-22 Spiralux Limited Keyboards
EP0163874A2 (en) * 1984-04-19 1985-12-11 Alcatel SEL Aktiengesellschaft Key switch
GB2178237A (en) * 1985-06-24 1987-02-04 Alps Electric Co Ltd Push button switch

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017128692A1 (en) 2017-12-04 2019-06-06 Valeo Schalter Und Sensoren Gmbh Operating device with noise damping

Also Published As

Publication number Publication date
GB2191040A (en) 1987-12-02
GB8612913D0 (en) 1986-07-02

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Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee