Global Patent Index - EP 1102910 A1

EP 1102910 A1 2001-05-30 - SPRING MONITORING DEVICE

Title (en)

SPRING MONITORING DEVICE

Title (de)

FEDERÜBERWACHUNGSGERÄT

Title (fr)

APPAREIL DE SURVEILLANCE DE RESSORT

Publication

EP 1102910 A1 (DE)

Application

EP 99948675 A

Priority

  • DE 9902272 W
  • DE 19833724 A
  • DE 19855697 A

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 (main, further and additional classification)

E05D 13/00; E06B 9/84

IPC 8 full level (invention and additional information)

E05D 13/00 (2006.01); E06B 9/84 (2006.01)

CPC (invention and additional information)

E05D 13/1269 (2013.01); E06B 9/84 (2013.01); E05D 13/003 (2013.01); E05D 13/1261 (2013.01); E05Y 2900/00 (2013.01); E05Y 2900/106 (2013.01)

Citation (search report)

See references of WO 0006861A1

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

US 6655088 B1 20031202; AT 216023 T 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