Global Patent Index - EP 0992052 A1

EP 0992052 A1 2000-04-12 - CURRENT LIMITING CIRCUIT BREAKER OPERATING MECHANISM INCLUDING LATCHING SYSTEM

Title (en)

CURRENT LIMITING CIRCUIT BREAKER OPERATING MECHANISM INCLUDING LATCHING SYSTEM

Title (de)

BETÄTIGUNGSMECHANISMUS EINES STROMBEGRENZENDEN SELBSTSCHALTERS, EINSCHLIESSLICH VERRIEGELUNGSSYSTEM

Title (fr)

SYST ME DE FONCTIONNEMENT D'UN INTERRUPTEUR LIMITANT UN COURANT COMPRENANT UN SYST ME DE VERROUILLAGE

Publication

EP 0992052 A1 (EN)

Application

EP 99920049 A

Priority

  • US 9909054 W
  • US 6927598 A

Abstract (en)

[origin: WO9956296A1] A circuit breaker includes a stationary contact, a moveable contact, and a blade having the moveable contact attached thereto, the blade being rotatable about a pivot between an OPEN position and an CLOSED position. The moveable contact engages the stationary contact when the blade in the CLOSED position and the circuit breaker is in the ON position. An operating mechanism moves the blade between the OPEN position and the CLOSED position. The operating mechanism includes a frame and a latching system. The latching system includes a cradle having a projection and pivotally coupled to the frame, wherein the cradle is linked to the blade to move the blade to the OPEN position. The latching system also includes a latch pivotally coupled to the frame. The latch has a main latch surface and a latch engagement protuberance. The main latch surface provides for overlapping engagement of the cradle projection when the circuit breaker is in the ON and NON-TRIPPED position. The latch engagement protuberance is biased into an engaged position with the cradle projection when the circuit breaker is in the ON and NON-TRIPPED position and the latch engagement protuberance controls degree of engagement between the main latch surface and the cradle projection. A spring biases the main latch surface in overlapping engagement of the cradle projection.

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

H01H 71/50

IPC 8 full level (invention and additional information)

H01H 71/12 (2006.01); H01H 71/50 (2006.01); H01H 71/52 (2006.01)

CPC (invention and additional information)

H01H 71/505 (2013.01); H01H 71/525 (2013.01)

Citation (search report)

See references of WO 9956296A1

Designated contracting state (EPC)

DE FR GB IE IT

EPO simple patent family

WO 9956296 A1 19991104; CA 2295181 A1 19991104; EP 0992052 A1 20000412; JP 2002506565 A 20020226

INPADOC legal status


2003-12-10 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20030603

2003-03-05 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20030121

2000-04-12 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000131

2000-04-12 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): DE FR GB IE IT