Circuit interrupting device with a turnbuckle and weld break assembly
AssigneeHubbell Incorporated
InventorDavid A. Rhein
Life of this patent
Estimating the term…
Abstract
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.
Claims39
A circuit interrupting device for use with an electrical circuit, comprising:
- a circuit interrupter including a primary contact and a moveable contact movable relative to said primary contact between a closed position allowing current to pass through said circuit interrupter and an open position separating said contacts and preventing current from passing through said circuit interrupter;
- a solenoid assembly with a plunger;
- and a turnbuckle assembly connected to said plunger of said solenoid assembly by a first set of threads and connected to said movable contact by a second set of threads.
A circuit interrupting device for use with an electrical circuit, comprising:
- a circuit interrupter including a primary contact and a moveable contact movable relative to said primary contact between a closed position allowing current to pass through said circuit interrupter and an open position separating said contacts and preventing current from passing through said circuit interrupter;
- a solenoid assembly with a plunger;
- an outer slide attached to said movable contact and having at least one slot, said slot being axially elongated;
- an inner slide attached to said plunger of said solenoid and being slidably connected to said outer slide;
- a groove pin extending radially from said inner slide and located in said at least one slot in said outer slide;
- and a spring biasing said groove pin toward one end of said at least one slot.
A circuit interrupting device for use with an electrical circuit, comprising:
- a circuit interrupter including a primary contact and a movable contact movable relative to said primary contact between a closed position allowing current to pass through said circuit interrupter and an open position separating said contacts and preventing current from passing through said circuit interrupter;
- a solenoid assembly with a plunger;
- and
- a turnbuckle assembly with a first end attached to the movable contact of said circuit interrupter and a second end attached to the plunger of said solenoid, said turnbuckle assembly generating sufficient impact force to break a weld between said primary contact and said movable contact.
Dependencies are inferred from the claim text.