Patent ID: 6637315
Filing Date: 2003-10-28
Classification: F15B

Abstract:
A hydraulic cylinder for use in a work vehicle, comprising:(a) a cylinder portion, including: a circular cylindrical tube having a first end, a threaded second end, an inner cylindrical surface with an inner diameter and a tube longitudinal axis, a plug having a pilot portion disposed inside the tube and an eye portion extending outside the tube and a plug longitudinal axis, a circular weldment extending around the circumference of the plug between the plug portion and the eye portion and coupling the first end of the tube to the plug between the pilot portion and the eye portion, the pilot portion and the inner cylindrical surface of the tube defining a cylindrical gap therebetween concentric with the tube longitudinal axis; and a seal disposed between and sealing against the pilot portion and the inner cylindrical surface of the tube, the seal comprising an anaerobic adhesive bonded to both the inner cylindrical surface and the pilot portion; (b) a threaded end plug configured to be engaged with threads on the threaded second end of the tube to enclose and seal the second end of the tube and defining a central longitudinal rod opening; and (c) a piston assembly including: a piston configured to be slidingly supported within the cylindrical tube, and a piston rod fixed thereto and extending out of the cylindrical tube through the rod opening.