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
Voltage level shift circuits and methods
Method and apparatus for complementing an instrument panel by utilizing augmented reality
Dispensing of restricted goods
Method and system for generating and displaying an interactive dynamic graph view of multiply connected objects
Electrophotographic photoreceptor, image-forming apparatus, and electrophotographic cartridge
Methods, systems, and computer program product for virtually modifying surface region curvature to detect protrusions
  Randomly Featured Patents
Pit-1 gene polymorphism and trait selection in animals
Methods to remotely control a wireless unit
Nonvolatile semiconductor memory capable of selectively erasing a plurality of elemental memory units
Electromagnetic valve
Fluid operated wrench
Outsole for a shoe
Portable pump for inflating tires, in particular for a bicycle
Apparatus and methods for communicating text messages using multiple communication modes
Anti-tip stool