BE807837A - Schakelaar voor druktoetsklavieren en dergelijke en hiermede uitgeruste klavieren - Google Patents
Schakelaar voor druktoetsklavieren en dergelijke en hiermede uitgeruste klavierenInfo
- Publication number
- BE807837A BE807837A BE2053240A BE2053240A BE807837A BE 807837 A BE807837 A BE 807837A BE 2053240 A BE2053240 A BE 2053240A BE 2053240 A BE2053240 A BE 2053240A BE 807837 A BE807837 A BE 807837A
- Authority
- BE
- Belgium
- Prior art keywords
- keypads
- push
- switch
- similar
- button
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/23—Construction or mounting of dials or of equivalent devices; Means for facilitating the use thereof
-
- 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
- H01H13/02—Details
- H01H13/26—Snap-action arrangements depending upon deformation of elastic members
- H01H13/36—Snap-action arrangements depending upon deformation of elastic members using flexing of blade springs
-
- 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
-
- 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
- H01H13/7006—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 comprising a separate movable contact element for each switch site, all other elements being integrated in layers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2205/00—Movable contacts
- H01H2205/016—Separate bridge contact
- H01H2205/024—Means to facilitate positioning
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2215/00—Tactile feedback
- H01H2215/034—Separate snap action
- H01H2215/036—Metallic disc
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2217/00—Facilitation of operation; Human engineering
- H01H2217/01—Off centre actuation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2217/00—Facilitation of operation; Human engineering
- H01H2217/012—Two keys simultaneous considerations
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2217/00—Facilitation of operation; Human engineering
- H01H2217/024—Profile on actuator
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2227/00—Dimensions; Characteristics
- H01H2227/028—Key stroke
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2227/00—Dimensions; Characteristics
- H01H2227/032—Operating force
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2231/00—Applications
- H01H2231/022—Telephone handset
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2239/00—Miscellaneous
- H01H2239/026—Internal encoding, e.g. validity bit
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2239/00—Miscellaneous
- H01H2239/03—Avoiding erroneous switching
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Push-Button Switches (AREA)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE2053240A BE807837A (nl) | 1973-11-27 | 1973-11-27 | Schakelaar voor druktoetsklavieren en dergelijke en hiermede uitgeruste klavieren |
DE19742455522 DE2455522B2 (de) | 1973-11-27 | 1974-11-23 | Drucktastenaggregat fuer fernsprechgeraete |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE2053240A BE807837A (nl) | 1973-11-27 | 1973-11-27 | Schakelaar voor druktoetsklavieren en dergelijke en hiermede uitgeruste klavieren |
Publications (1)
Publication Number | Publication Date |
---|---|
BE807837A true BE807837A (nl) | 1974-03-15 |
Family
ID=3865164
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE2053240A BE807837A (nl) | 1973-11-27 | 1973-11-27 | Schakelaar voor druktoetsklavieren en dergelijke en hiermede uitgeruste klavieren |
Country Status (2)
Country | Link |
---|---|
BE (1) | BE807837A (nl) |
DE (1) | DE2455522B2 (nl) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2557703C3 (de) * | 1975-12-20 | 1979-03-15 | Telefonbau Und Normalzeit Gmbh, 6000 Frankfurt | Druckschalter |
DE2740988A1 (de) * | 1977-09-12 | 1979-03-22 | Petri Ag | Einbauschaltelement |
DE4218545A1 (de) * | 1992-06-05 | 1993-12-09 | Abb Patent Gmbh | Elektrisches Schaltgerät |
DE4226937A1 (de) * | 1992-08-14 | 1994-02-17 | Abb Patent Gmbh | Elektrisches Schaltgerät |
-
1973
- 1973-11-27 BE BE2053240A patent/BE807837A/nl not_active IP Right Cessation
-
1974
- 1974-11-23 DE DE19742455522 patent/DE2455522B2/de active Granted
Also Published As
Publication number | Publication date |
---|---|
DE2455522A1 (de) | 1975-06-05 |
DE2455522B2 (de) | 1977-02-17 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
RE | Patent lapsed |
Owner name: GTE ATEA N.V. Effective date: 19881130 |