EP 0174432 A3 19861015 - DEVICE FOR HOLDING A DOOR CLOSER IN POSITION
Title (en)
DEVICE FOR HOLDING A DOOR CLOSER IN POSITION
Publication
Application
Priority
DE 3433891 A 19840914
Abstract (en)
[origin: US4663800A] A door holding device for door closers is described in which a door is held only at a predetermined angle of opening and in which the selected holding position can remain unchanged over a long period of time but can nevertheless be released by electrical means. For this purpose the switching of the door is effected, starting from a known mechanical door holding device which can be switched in and switched out, via a control unit which is biased into a door holding position by the hydraulic pressure which is in any event present in the closer and which can be released again via a magnetic valve.
IPC 1-7
IPC 8 full level
CPC (source: EP US)
E05F 3/104 (2013.01 - EP US); E05F 3/221 (2013.01 - EP US); E05F 3/223 (2013.01 - EP US); E05F 3/222 (2013.01 - EP US); E05Y 2201/462 (2013.01 - EP US); E05Y 2900/132 (2013.01 - EP US); Y10S 16/09 (2013.01 - US)
Citation (search report)
- [Y] FR 2343112 A1 19770930 - DORMA BAUBESCHLAG [DE]
- [YD] DE 2313513 A1 19741003 - EATON GMBH [DE]
- [A] DE 3151498 A1 19830714 - GEZE GMBH [DE]
- [A] DE 2913426 A1 19801016 - VER BAUBESCHLAG GRETSCH CO
- [A] GB 1512016 A 19780524 - BARBER C
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
EP 0174432 A2 19860319; EP 0174432 A3 19861015; EP 0174432 B1 19890215; AT E40844 T1 19890315; DE 3433891 A1 19860327; DE 3568293 D1 19890323; JP S6178981 A 19860422; US 4663800 A 19870512
DOCDB simple family (application)
EP 85105289 A 19850430; AT 85105289 T 19850430; DE 3433891 A 19840914; DE 3568293 T 19850430; JP 20416685 A 19850914; US 76971085 A 19850827