Resources Contact Us Home
Circuit breaker trip latch assembly

Image Number 4 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
Optical coherence tomography with multiple sample arms
MOS device for eliminating floating body effects and self-heating effects
Transmitter having a programmable amplifier operating class
Use of emerging non-volatile memory elements with flash memory
Wideband multi-channel receiver with fixed-frequency notch filter for interference rejection
System and method for optimizing utilization of inventory space for dispensable articles
Combined high and low frequency stimulation therapy
  Randomly Featured Patents
Loose-leaf binding tool
Methods for detecting and monitoring sleep disordered breathing using an implantable medical device
Hydrodynamically balanced controlled release compositions containing L-dopa and a decarboxylase inhibitor
Apparatus and method for forming features on a substrate
Device and method for stacking sheets
Transparent and nonexpansive glass-ceramic
Automatic drill string section changer
Condensed thiophene compound and pharmaceutical use thereof
Method of inhibiting the transmission of influenza virus
Lead frame for anodes of electrolytic capacitors and process of manufacture of electrolytic capacitors using such a lead frame