Resources Contact Us Home
Mechanical interlock for circuit breaker to prevent relatching of the breaker

Image Number 3 for United States Patent #8120452.

An apparatus and method for restricting auxiliary latch movement within a tripped circuit breaker. An auxiliary latch is held in a closed state and is biased into an open state. When the trip bar is activated in response to an overload condition, it releases the auxiliary latch which pivots to the open state. The cradle is released and pivots to disengage the breaker contact. Tabs on the cradle and auxiliary latch cooperatively interlock to limit auxiliary latch movement until the latch is properly reset.

  Recently Added Patents
Geo-coding images
Regenerative power storage system mounted on DC electric railway car
Wall flow type exhaust gas purification filter
Magnetoresistive shield with coupled lateral magnet bias
Interactivity model for shared feedback on mobile devices
Thin film switch and press key/keyboard using the same
Flexible pouch
  Randomly Featured Patents
Adjustable steering column for motor vehicle
Article for de-energizing a branch electrical circuit, and related processes
Data carrier and a production method for the same
Signal warning and displaying lamp
Differential pressure sensor
Compact galois field multiplier
Lock arrangement for containers
Anti-static housing and related display device assembly
Information security policy evaluation system and method of controlling the same