EP 0797341 A1 19970924 - Pushbutton unit with a viewing window for cards identifying the users of internal extensions
Title (en)
Pushbutton unit with a viewing window for cards identifying the users of internal extensions
Title (de)
Druckknopfeinheit mit Sichtfenster für Schilder zur Identifizierung der Benutzer von internen Anschlüssen
Title (fr)
Unité à bouton poussoir avec fenêtre pour cartes identifiant les utilisateurs de postes intérieurs
Publication
Application
Priority
IT MI960547 A 19960320
Abstract (en)
A pushbutton unit (30), of flush-mounted or wall-resting type, in particular for external stations of intercom and/or video-intercom systems, comprising a front plate (10) in which a window (20) is provided through which cards (22) identifying the internal extension (P) are visible, and follow each other one by one. For this purpose a rotary drum (25) carrying the cards (22) in positions adjacent to each other is rigidly connected via a pin (26) to an electrical change-over switch (27) and to a knurled or toothed disc (28) having its knurling (29) or teeth projecting outwards from the plate (10), so that the caller by acting on them causes the names or numbers to pass one at a time in front of the viewing window (20) until the required name or number arrives. Only one call button (31) is provided, plus a single light source (33) inside the drum (25), for identifying the name or number. <IMAGE>
IPC 1-7
IPC 8 full level
H01H 9/18 (2006.01)
CPC (source: EP)
H01H 9/18 (2013.01)
Citation (search report)
- [X] US 3978468 A 19760831 - BOND LELAND R, et al
- [Y] FR 2590100 A1 19870515 - RHONE ENTREPRISE ANTENNE [FR]
- [Y] AU 5333664 D
- [A] EP 0245709 A1 19871119 - SIEMENS AG [DE]
- [A] EP 0198411 A2 19861022 - DIERAUF ELEKTRONIK GMBH [DE]
Designated contracting state (EPC)
AT BE DE ES FR GB NL PT
DOCDB simple family (publication)
EP 0797341 A1 19970924; IT 1283546 B1 19980422; IT MI960547 A0 19960320; IT MI960547 A1 19970920
DOCDB simple family (application)
EP 96201656 A 19960613; IT MI960547 A 19960320