Global Patent Index - EP 0991840 A1

EP 0991840 A1 2000-04-12 - DOOR ACTUATING SYSTEM

Title (en)

DOOR ACTUATING SYSTEM

Title (de)

TÜRANTRIEB

Title (fr)

COMMANDE DE PORTE

Publication

EP 0991840 A1 (DE)

Application

EP 98942460 A

Priority

  • DE 9801727 W
  • DE 19726741 A

Abstract (en)

[origin: DE19726741A1] The invention relates to a door actuating system (3) for the leaf (1) of a fire door. Door actuating systems known per se, e. g. hydraulic door actuators, use easily inflammable hydraulic oil to regulate damping properties. In the case of a fire, hydraulic oil flowing out of a non-tight area of the actuating system housing can catch fire even on the side of a fire door not facing the blaze but which has a hot surface. This can cause the fire to spread. According to the invention, the door actuating system (3) is provided with a safety fuse (8, 9, 33) which detaches the fixture between the housing of the door actuating system (31) and the arm (5, 6, 7) on the door (1) or the door frame (2), which then fall on the floor and are no longer in contact with the hot surface of the door. Plastic screws (33) and plastic bushings (8) accommodating metal screws or assembly plates (9) made of plastic or similar materials can be used as safety fuses.

IPC 1-7 (main, further and additional classification)

E05F 3/22

IPC 8 full level (invention and additional information)

E05F 3/22 (2006.01)

CPC (invention and additional information)

E05B 65/104 (2013.01); E05F 3/227 (2013.01); E05F 2003/228 (2013.01); E05Y 2900/134 (2013.01); Y10T 16/22 (2013.01)

Citation (search report)

See references of WO 9859141A1

Designated contracting state (EPC)

AT CH DE FI FR GB IT LI SE

EPO simple patent family

DE 29880074 U1 20000420; AT 292228 T 20050415; AU 9060898 A 19990104; CN 1265171 A 20000830; DE 19726741 A1 19990107; DE 19880777 D2 20000615; EP 0991840 A1 20000412; EP 0991840 B1 20050330; EP 0991840 B2 20121107; US 6363575 B1 20020402; WO 9859141 A1 19981230

INPADOC legal status


2017-03-01 [GBPC] GB: EUROPEAN PATENT CEASED THROUGH NON-PAYMENT OF RENEWAL FEE

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2006-03-10 [ET] FR: TRANSLATION FILED

2006-02-22 [26] OPPOSITION FILED

- Opponent name: DORMA GMBH + CO. KG

- Effective date: 20051222

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