EP 1102910 A1 20010530 - SPRING MONITORING DEVICE
Title (en)
SPRING MONITORING DEVICE
Title (de)
FEDERÜBERWACHUNGSGERÄT
Title (fr)
APPAREIL DE SURVEILLANCE DE RESSORT
Publication
Application
Priority
- DE 9902272 W 19990723
- DE 19833724 A 19980727
- DE 19855697 A 19981202
Abstract (en)
[origin: US6655088B1] An arrangement for monitoring a condition of a counterbalance torsion spring in an overhead door or gate and preventing the door or gate from accidentally slamming shut or dropping too rapidly when the spring fails. The arrangement includes a drum mounted on a shaft which transmits the torque of the spring to the drum. During normal operation a sensor and release assembly maintains a catcher in a inactive position and when the spring fails, the sensor and release assembly allows the catcher to move to an active position and engage a grabber disposed on an inside surface of the drum to block rotation of the drum and therefore movement of the door or gate.
IPC 1-7
IPC 8 full level
E05D 13/00 (2006.01); E06B 9/84 (2006.01)
CPC (source: EP US)
E05D 13/1269 (2013.01 - EP US); E06B 9/84 (2013.01 - EP US); E05D 13/003 (2013.01 - EP US); E05D 13/1261 (2013.01 - EP US); E05Y 2900/00 (2013.01 - EP US); E05Y 2900/106 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
US 6655088 B1 20031202; AT E216023 T1 20020415; DK 1102910 T3 20020708; EP 1102910 A1 20010530; EP 1102910 B1 20020410; ES 2172352 T3 20020916; PT 1102910 E 20020930; WO 0006861 A1 20000210
DOCDB simple family (application)
US 74475501 A 20010223; AT 99948675 T 19990723; DE 9902272 W 19990723; DK 99948675 T 19990723; EP 99948675 A 19990723; ES 99948675 T 19990723; PT 99948675 T 19990723