IT1091947B - Materiale elastomerico conduttore sotto pressione - Google Patents
Materiale elastomerico conduttore sotto pressioneInfo
- Publication number
- IT1091947B IT1091947B IT6948677A IT6948677A IT1091947B IT 1091947 B IT1091947 B IT 1091947B IT 6948677 A IT6948677 A IT 6948677A IT 6948677 A IT6948677 A IT 6948677A IT 1091947 B IT1091947 B IT 1091947B
- Authority
- IT
- Italy
- Prior art keywords
- under pressure
- elastomeric material
- conductor under
- material conductor
- elastomeric
- Prior art date
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
- H01C—RESISTORS
- H01C10/00—Adjustable resistors
- H01C10/10—Adjustable resistors adjustable by mechanical pressure or force
- H01C10/106—Adjustable resistors adjustable by mechanical pressure or force on resistive material dispersed in an elastic material
-
- 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
- H01H2201/036—Variable resistance
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2207/00—Connections
- H01H2207/008—Adhesive means; Conductive adhesive
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2227/00—Dimensions; Characteristics
- H01H2227/002—Layer thickness
- H01H2227/012—Conductive rubber
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2227/00—Dimensions; Characteristics
- H01H2227/002—Layer thickness
- H01H2227/012—Conductive rubber
- H01H2227/014—Conductive particles
Landscapes
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Push-Button Switches (AREA)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT6948677A IT1091947B (it) | 1977-11-07 | 1977-11-07 | Materiale elastomerico conduttore sotto pressione |
EP19780300393 EP0001882B1 (en) | 1977-11-07 | 1978-09-18 | Depressible contactless key for generating electric signals in an electronic keyboard |
DE7878300393T DE2861435D1 (en) | 1977-11-07 | 1978-09-18 | Depressible contactless key for generating electric signals in an electronic keyboard |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT6948677A IT1091947B (it) | 1977-11-07 | 1977-11-07 | Materiale elastomerico conduttore sotto pressione |
Publications (1)
Publication Number | Publication Date |
---|---|
IT1091947B true IT1091947B (it) | 1985-07-06 |
Family
ID=11312229
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT6948677A IT1091947B (it) | 1977-11-07 | 1977-11-07 | Materiale elastomerico conduttore sotto pressione |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0001882B1 (it) |
DE (1) | DE2861435D1 (it) |
IT (1) | IT1091947B (it) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5641618A (en) * | 1979-09-14 | 1981-04-18 | Nissan Motor | Picture display switch |
JPS5846532A (ja) * | 1981-09-16 | 1983-03-18 | 東レ株式会社 | 透明面状スイツチ構造体およびスイツチ装置 |
DE3543890C2 (de) * | 1985-12-12 | 1994-11-17 | Thomson Brandt Gmbh | Eingabetastatur |
US5216316A (en) * | 1989-12-18 | 1993-06-01 | Ralph Ipcinski | Piezo electric transducer |
US5455556A (en) * | 1991-08-20 | 1995-10-03 | Key Tronic Corporation | Single station cursor device suitable for keyboards |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1298089A (en) * | 1969-02-24 | 1972-11-29 | William Barber Sudduth | Electric switch made of conducting elastomer |
DE1939642B2 (de) * | 1969-08-04 | 1975-01-09 | Standard Elektrik Lorenz Ag, 7000 Stuttgart | Auf linearem Druck basierender Schalter für prellfreies Schalten |
CH547007A (de) * | 1972-04-06 | 1974-03-15 | Wifo Forschungsinst Ag | Druckempfindlicher elektrischer schalter, insbesondere fuer schwach- oder signalstrom. |
CH553066A (fr) * | 1972-04-26 | 1974-08-30 | Battelle Memorial Institute | Procede de fabrication d'un ruban a conductivite electrique anisotrope. |
US4292261A (en) * | 1976-06-30 | 1981-09-29 | Japan Synthetic Rubber Company Limited | Pressure sensitive conductor and method of manufacturing the same |
-
1977
- 1977-11-07 IT IT6948677A patent/IT1091947B/it active
-
1978
- 1978-09-18 EP EP19780300393 patent/EP0001882B1/en not_active Expired
- 1978-09-18 DE DE7878300393T patent/DE2861435D1/de not_active Expired
Also Published As
Publication number | Publication date |
---|---|
EP0001882B1 (en) | 1981-12-09 |
EP0001882A1 (en) | 1979-05-16 |
DE2861435D1 (en) | 1982-02-04 |
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