Patent ID: 8269130

Claim:
A vacuum interrupter comprising: a number of insulative tubes including a first open end and a second open end; a first end member secured to the first open end of said number of insulative tubes; a second end member secured to the second open end of said number of insulative tubes; a fixed contact mounted on a fixed electrode extending through said second end member; a retainer comprising: a rigid retainer including a plurality of legs and an opening, and an insulative bushing including an opening, wherein the opening of the insulative bushing is smaller than the opening of the rigid retainer, wherein a portion of the rigid retainer is imbedded in the insulative bushing, wherein the insulative bushing is molded over the portion of the rigid retainer, wherein the opening of the insulative bushing is within the opening of the rigid retainer, and wherein the opening of the insulative bushing is structured to receive a movable electrode; and a movable contact mounted on the movable electrode extending through said first end member and extending through the opening of the insulative bushing, said movable contact being capable of axially reciprocating into and out of contact with said fixed contact, wherein said number of insulative tubes, said first end member, said second end member, the fixed electrode, the insulative bushing and the movable electrode form a vacuum envelope.