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
Apparatus and method of managing radio bearer in wireless communication system
Conversion of 5-(chloromethyl)-2-furaldehyde into 5-methyl-2-furoic acid and derivatives thereof
Semiconductor device and manufacturing method thereof
Provision of downlink packet access services to user equipment in spread spectrum communication network
XDSL system and signal transmission method, sending device, and receiving device of xDSL system
Performance venue with dynamic mechanical load management system and method
  Randomly Featured Patents
Use of fibrous mat-faced gypsum board in exterior finishing systems for buildings and shaft wall assemblies
Information device
Light emitting panel assemblies
Spectral optic temperature sensor
Phaco thermal control apparatus and method
Tip end bracket
Register arrangement for a microcomputer with a register and further storage media
Phase control digital frequency divider
Elevator system
Method of locally forming a silicon/geranium channel layer