Patent ID: 6460571
Filing Date: 2002-10-08
Classification: F16L

Abstract:
An accumulator including an elongated cylindrical canister and a piston located within the canister and slideable axially within the canister to divide the canister into separate chambers, the piston having a cylindrical peripheral surface, and sealing means disposed between the peripheral surface of the cylinder and the canister for providing a fluid-tight seal between the chambers; an end cap enclosing an end of the canister, the end cap having an outer cylindrical surface closely received in the canister, with an annular groove formed in the outer surface of the end cap at a location spaced from the axial ends of the end cap, the groove including a flat bottom and at least one sidewall with a rounded portion, the side wall interconnecting the flat bottom with the outer cylindrical surface of the end cap, the canister being mechanically formed into the groove to fix the end cap in a permanent and fluid tight manner to the canister.