Resources Contact Us Home
Circuit breaker trip latch assembly

Image Number 8 for United States Patent #4301346.

A circuit breaker trip latch assembly includes a primary latch having a latching member releasably latching a cradle in its reset position against the bias of charged operating mechanism springs. The primary latch and either one of the first and second secondary latches commonly engage a latch pin carried by the free end of a pivotally mounted, elongated intermediate latch. The geometry of this common engagement is such as to greatly reduce the force of the charged mechanism springs ultimately absorbed by the first secondary latch as the cradle is relatched and the second, trip initiating, secondary latch while the breaker is closed.

  Recently Added Patents
Printable and printed articles
Disposable and tamper-resistant RFID lock
Press nut
Energy storage device package
Refuelable battery-powered electric vehicle
Pre-primed roofing membrane
Imaging lens
  Randomly Featured Patents
High capacity and high resolution scale
Drywall finishing system
Quick restart HCCI internal combustion engine
Technique for data synchronization in a multiple system vehicle architecture
Electromagnetic beam or table for screen or like printing
Non-contacting sensor multichip module with integral heat-sinks
Device and method for damping mechanical vibrations of a printing press
DRX functionality in multi-carrier wireless networks
Two stage shock absorber mount
Rotary pump with hydrodynamically suspended impeller