US Patent 7215228 Circuit interrupting device with a turnbuckle and weld break assembly

A circuit interrupting device has a circuit interrupter with a stationary contact and a moveable contact. The movable contact is movable relative to the stationary contact between a closed position that allows current to pass through the circuit interrupter and an open position separating the contacts and preventing current from passing through the circuit interrupter. The movable contact is controlled by a solenoid assembly. The movable contact is connected to a plunger of the solenoid assembly by a turnbuckle and weld break assembly. The turnbuckle and weld break assembly permits adjusting the contact wipe distance and generates a hammer force to break any welds between the contacts of the vacuum interrupter.