EP0133817A3 - Membrane switches - Google Patents

Membrane switches Download PDF

Info

Publication number: EP0133817A3
Authority: EP; European Patent Office
Prior art keywords: membrane; contacts; board; base board; contact
Prior art date: 1983-08-11
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 Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Withdrawn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

EP84305404A

Other languages

German (de)

English (en)

French (fr)

Other versions

EP0133817A2 (en

Inventor

Geoffrey Thomas Hilton

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.)

British Telecommunications PLC

Original Assignee

British Telecommunications 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.)

1983-08-11

Filing date

1984-08-08

Publication date

1985-04-10

1984-08-08 Application filed by British Telecommunications PLC filed Critical British Telecommunications PLC

1985-03-06 Publication of EP0133817A2 publication Critical patent/EP0133817A2/en

1985-04-10 Publication of EP0133817A3 publication Critical patent/EP0133817A3/en

Status Withdrawn legal-status Critical Current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
- H01H2201/026—Material non precious
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2201/00—Contacts
- H01H2201/022—Material
- H01H2201/03—Composite
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2207/00—Connections
- H01H2207/02—Solder
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2209/00—Layers
- H01H2209/024—Properties of the substrate
- H01H2209/032—Properties of the substrate non elastomeric
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2209/00—Layers
- H01H2209/068—Properties of the membrane
- H01H2209/076—Properties of the membrane non elastomeric
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2229/00—Manufacturing
- H01H2229/002—Screen printing
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2229/00—Manufacturing
- H01H2229/008—Die stamping
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2229/00—Manufacturing
- H01H2229/016—Selective etching
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2229/00—Manufacturing
- H01H2229/024—Packing between substrate and membrane
- H01H2229/028—Adhesive
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2229/00—Manufacturing
- H01H2229/038—Folding of flexible printed circuit
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2239/00—Miscellaneous
- H01H2239/008—Static electricity considerations

EP84305404A 1983-08-11 1984-08-08 Membrane switches Withdrawn EP0133817A3 (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
GB8321689		1983-08-11
GB838321689A GB8321689D0 (en)	1983-08-11	1983-08-11	Membrane switches

Publications (2)

Publication Number	Publication Date
EP0133817A2 EP0133817A2 (en)	1985-03-06
EP0133817A3 true EP0133817A3 (en)	1985-04-10

Family

ID=10547180

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP84305404A Withdrawn EP0133817A3 (en)	1983-08-11	1984-08-08	Membrane switches

Country Status (3)

Country	Link
EP (1)	EP0133817A3 (un)
GB (2)	GB8321689D0 (un)
WO (1)	WO1985000923A1 (un)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4713534A (en) *	1986-02-18	1987-12-15	Carroll Touch Inc.	Phototransistor apparatus with current injection ambient compensation
IT1208461B (it) *	1987-01-30	1989-06-22	Granarolo Dell Emilia Bo Melic	Custodia protettiva antiurto per telecomandi in particolare di televisori
US6958183B2 (en) *	2001-02-20	2005-10-25	Teikoku Tsushin Kogyo Co., Ltd.	Key top plate and a method for manufacturing the same
GB2421635B (en) *	2004-12-24	2007-12-05	In2Connect Ltd	A switch
FR2881091B1 (fr) *	2005-01-24	2007-08-24	Cera	Composant de garnissage comprenant une couche mince de commande formant interrupteur
CN106994924A (zh) *	2017-05-18	2017-08-01	上海安闻汽车电子有限公司	一种人体压力传感器及汽车座椅
WO2019151940A1 (en)	2018-02-01	2019-08-08	Razer (Asia-Pacific) Pte. Ltd.	Key switch mechanisms, user input devices and methods of fabricating a key switch mechanism

Citations (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3862381A (en) *	1973-10-29	1975-01-21	Chomerics Inc	Keyboard switch assembly with multilayer, coextensive contactor means
US4314114A (en) *	1980-02-04	1982-02-02	Oak Industries	Laminated membrane switch
US4338502A (en) *	1978-04-27	1982-07-06	Sharp Kabushiki Kaisha	Metallic housing for an electronic apparatus with a flat keyboard
AT370912B (de) *	1980-09-17	1983-05-10	Electrovac	Vorrichtung zum schalten eines oder mehrerer elektrischer stromkreise

1983
- 1983-08-11 GB GB838321689A patent/GB8321689D0/en active Pending
1984
- 1984-08-08 WO PCT/GB1984/000274 patent/WO1985000923A1/en unknown
- 1984-08-08 GB GB08420140A patent/GB2144917A/en not_active Withdrawn
- 1984-08-08 EP EP84305404A patent/EP0133817A3/en not_active Withdrawn

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3862381A (en) *	1973-10-29	1975-01-21	Chomerics Inc	Keyboard switch assembly with multilayer, coextensive contactor means
US4338502A (en) *	1978-04-27	1982-07-06	Sharp Kabushiki Kaisha	Metallic housing for an electronic apparatus with a flat keyboard
US4314114A (en) *	1980-02-04	1982-02-02	Oak Industries	Laminated membrane switch
AT370912B (de) *	1980-09-17	1983-05-10	Electrovac	Vorrichtung zum schalten eines oder mehrerer elektrischer stromkreise

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
L.B. HUNT et al.: "Electrical contacts", 1946, pages 74,85,86, Johnson, Matthey & Co. Ltd., London, GB; *
RADIO FERNSEHEN ELEKTRONIK, vol. 32, no. 6, June 1983, page 341, Berlin, DD; "Folienmembranschalter" *

Also Published As

Publication number	Publication date
GB8321689D0 (en)	1983-09-14
GB2144917A (en)	1985-03-13
WO1985000923A1 (en)	1985-02-28
EP0133817A2 (en)	1985-03-06
GB8420140D0 (en)	1984-09-12

Legal Events

Date	Code	Title	Description
1985-01-05	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
1985-02-07	PUAL	Search report despatched	Free format text: ORIGINAL CODE: 0009013
1985-03-06	AK	Designated contracting states	Designated state(s): AT BE CH DE FR GB IT LI LU NL SE
1985-04-10	AK	Designated contracting states	Designated state(s): AT BE CH DE FR GB IT LI LU NL SE
1986-04-21	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN
1986-06-04	18D	Application deemed to be withdrawn	Effective date: 19851210
1986-06-11	R18D	Application deemed to be withdrawn (corrected)	Effective date: 19851211
2007-08-08	RIN1	Information on inventor provided before grant (corrected)	Inventor name: HILTON, GEOFFREY THOMAS

Publication	Publication Date	Title
AU572615B2 (en)	1988-05-12	Electrically conductive adhesive sheet circuit board and electrical connection structure
ES2001361A6 (es)	1988-05-16	Un disyuntor de circuito
GB2006550B (en)	1982-05-19	Stacked printed circuit board assembly and contacts therefor
GB1506371A (en)	1978-04-05	Switching means for printed circuit boards
AU585776B2 (en)	1989-06-22	Miniature electrical circuit breaker with multiple moving contacts and thermomagnetic trip release
CA2139330A1 (en)	1994-01-20	Electrical devices
GB9315160D0 (en)	1993-09-08	Electrical terminal for use with short circuit spring contacts
FI891744A0 (fi)	1989-04-12	Ytkontaktdon foer radiofrekventa signaler.
ZA849289B (en)	1985-07-31	Molded case circuit breaker with movable lower electrical contact
EP1536445A3 (de)	2006-05-03	Schalter mit einem temperaturabhängigen Schaltwerk
EP0145990A3 (en)	1986-02-19	Circuit breaker with improved cross-bar and contact assembly
GB2176069B (en)	1988-11-23	A switch for protection against fault currents
EP0133817A3 (en)	1985-04-10	Membrane switches
GB1298475A (en)	1972-12-06	Improvements in or relating to electrical components
DE3267339D1 (en)	1985-12-19	Multi-pole electric circuit breaker with current limiting device
GB2144916B (en)	1987-03-11	High current switch contacts
DE3872800D1 (de)	1992-08-20	Schalteranordnung fuer elektrische mehrpolige schutzschalter mit mehreren kontakten.
AU6459394A (en)	1994-12-08	Electrical circuit interrupting device with means to break welded contacts
DE3668394D1 (de)	1990-02-22	Kontaktanordnung fuer niederspannungs-leistungsschalter mit hauptkontakten und abbrennkontakten.
EP0236075A3 (en)	1989-09-06	Relay switch apparatus
NO951448L (no)	1995-10-20	Kontaktering mellom betjenings- og visningsorganer
EP0208295A3 (en)	1988-01-20	Current limiting circuit breaker with arc commutating structure
SE8601989L (sv)	1986-11-03	Flerkontaktstangent med fordrojning
US4558191A (en)	1985-12-10	Button switch device
EP0130462A3 (en)	1986-07-30	Printed circuits