Patent ID: 6853525
Filing Date: 2005-02-08
Classification: H01H

Abstract:
1. A vacuum arc interrupter comprising: a vacuum chamber assembly having a vacuum chamber; a first, fixed contact disposed within said vacuum chamber; a second, movable contact disposed within said vacuum chamber; a rod coupled to, and in electrical communication with, said second contact, said rod structured to move between a first position wherein said second contact is spaced from said first contact and a second position where said contacts are in electrical communication with each other; a pressure chamber assembly having a gas generation device and a cylindrical barrel defining a pressure chamber with a first end and a second end; said barrel second end having an opening; a piston assembly having a first side and a second side and disposed in said pressure chamber; said piston assembly second side coupled to said rod, said rod passing through said barrel second end; said gas generation device coupled to said pressure chamber assembly and in fluid communication with said barrel and said piston assembly; and wherein, upon generation of a gas by said gas generation device, said piston assembly moves within said barrel causing said rod to move from said first position to said second position.