GB2054268B - Double-domed conductive disc - Google Patents

Double-domed conductive disc

Info

Publication number
GB2054268B
GB2054268B GB7925139A GB7925139A GB2054268B GB 2054268 B GB2054268 B GB 2054268B GB 7925139 A GB7925139 A GB 7925139A GB 7925139 A GB7925139 A GB 7925139A GB 2054268 B GB2054268 B GB 2054268B
Authority
GB
United Kingdom
Prior art keywords
double
conductive disc
domed
domed conductive
disc
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
GB7925139A
Other versions
GB2054268A (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 GB7925139A priority Critical patent/GB2054268B/en
Publication of GB2054268A publication Critical patent/GB2054268A/en
Application granted granted Critical
Publication of GB2054268B publication Critical patent/GB2054268B/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
    • 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
    • H01H2203/054—Form of contacts to solve particular problems for redundancy, e.g. several contact pairs in parallel
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2213/00—Venting
    • H01H2213/002—Venting with external pressure
    • 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
    • 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
    • H01H2217/00—Facilitation of operation; Human engineering
    • H01H2217/008—Pretravel to avoid inadvertent switching
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2217/00—Facilitation of operation; Human engineering
    • H01H2217/02—After travel
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2227/00—Dimensions; Characteristics
    • H01H2227/026—Separate dome contact
GB7925139A 1979-07-19 1979-07-19 Double-domed conductive disc Expired GB2054268B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7925139A GB2054268B (en) 1979-07-19 1979-07-19 Double-domed conductive disc

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7925139A GB2054268B (en) 1979-07-19 1979-07-19 Double-domed conductive disc

Publications (2)

Publication Number Publication Date
GB2054268A GB2054268A (en) 1981-02-11
GB2054268B true GB2054268B (en) 1984-01-18

Family

ID=10506599

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7925139A Expired GB2054268B (en) 1979-07-19 1979-07-19 Double-domed conductive disc

Country Status (1)

Country Link
GB (1) GB2054268B (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5987720A (en) * 1982-11-11 1984-05-21 シャープ株式会社 Pushbutton switch
US4490587A (en) * 1983-04-07 1984-12-25 Microdot Inc. Switch assembly
JPS60127620A (en) * 1983-12-12 1985-07-08 興国ゴム工業株式会社 Spring unit for keyboard
US4775574A (en) * 1986-04-14 1988-10-04 Shin Etsu Polymer Co., Ltd. Covering member of keyboard and a base plate therefor
DE4103150C1 (en) * 1991-02-02 1992-04-16 Blaupunkt-Werke Gmbh, 3200 Hildesheim, De
DE4128778A1 (en) * 1991-08-29 1993-03-04 Siemens Ag HOUSING PART FOR AN ELECTRICAL CIRCUIT ARRANGEMENT TO BE PROTECTED FROM POLLUTANTS e.g. A VEHICLE LOCKING SYSTEM
US5358344A (en) * 1992-09-01 1994-10-25 Key Tronic Corporation Keyboard with full-travel, self-leveling keyswitches
JP2000322974A (en) * 1999-05-10 2000-11-24 Alps Electric Co Ltd Press button switch
EP1083583A1 (en) * 1999-09-09 2001-03-14 Molex Incorporated Electrical switch
DE10026352A1 (en) * 2000-05-27 2001-11-29 Mannesmann Vdo Ag Electrical switching device
JP2002216580A (en) * 2001-01-18 2002-08-02 Alps Electric Co Ltd Contact plate, contact-plate-attached sheet, and switch device using them
US7126498B2 (en) 2002-02-27 2006-10-24 Digit Wireless, Llc Keypad construction
EP1681695B1 (en) * 2002-05-23 2009-07-08 Digit Wireless, Llc Electrical key switch
MXPA04010251A (en) * 2002-05-23 2005-06-08 Digit Wireless Llc Keypads and key switches.
GB2396253A (en) * 2002-12-13 2004-06-16 Itt Mfg Enterprises Inc Sealed switch
GB2409342A (en) * 2003-12-19 2005-06-22 Nokia Corp A dome switch and an input apparatus for a multimedia device.
CN109003855B (en) * 2018-07-25 2020-08-28 高铭电子（惠州）有限公司 Micro-switch

Also Published As

Publication number Publication date
GB2054268A (en) 1981-02-11

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee