FR1384028A - Dispositif de verrouillage de sécurité pour commutateurs à touches - Google Patents
Dispositif de verrouillage de sécurité pour commutateurs à touchesInfo
- Publication number
- FR1384028A FR1384028A FR954317A FR954317A FR1384028A FR 1384028 A FR1384028 A FR 1384028A FR 954317 A FR954317 A FR 954317A FR 954317 A FR954317 A FR 954317A FR 1384028 A FR1384028 A FR 1384028A
- Authority
- FR
- France
- Prior art keywords
- locking device
- key switches
- safety locking
- safety
- switches
- 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
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J5/00—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner
- H03J5/24—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection
- H03J5/26—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection operated by hand
- H03J5/32—Stationary tuning circuits or elements selected by push-button
-
- 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
- H01H13/72—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 wherein the switch has means for limiting the number of operating members that can concurrently be in the actuated position
- H01H13/74—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 wherein the switch has means for limiting the number of operating members that can concurrently be in the actuated position each contact set returning to its original state only upon actuation of another of the operating members
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR954317A FR1384028A (fr) | 1963-11-19 | 1963-11-19 | Dispositif de verrouillage de sécurité pour commutateurs à touches |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR954317A FR1384028A (fr) | 1963-11-19 | 1963-11-19 | Dispositif de verrouillage de sécurité pour commutateurs à touches |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1384028A true FR1384028A (fr) | 1965-01-04 |
Family
ID=8816933
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR954317A Expired FR1384028A (fr) | 1963-11-19 | 1963-11-19 | Dispositif de verrouillage de sécurité pour commutateurs à touches |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR1384028A (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2462010A1 (fr) * | 1979-07-14 | 1981-02-06 | Itt | Dispositif de commutation commande par boutons-poussoirs |
FR2487112A1 (fr) * | 1980-07-18 | 1982-01-22 | Seima | Dispositif de commande selective pour commutateur |
-
1963
- 1963-11-19 FR FR954317A patent/FR1384028A/fr not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2462010A1 (fr) * | 1979-07-14 | 1981-02-06 | Itt | Dispositif de commutation commande par boutons-poussoirs |
FR2487112A1 (fr) * | 1980-07-18 | 1982-01-22 | Seima | Dispositif de commande selective pour commutateur |
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