Patent ID: 6520067
Filing Date: 2003-02-18
Classification: E02F,F15B,Y10T

Abstract:
A locking device for use on hydraulic cylinder and piston assemblies comprising:a substantially rigid sleeve consisting of a pair of sleeve halves having diametrically opposite longitudinally extending meeting edges wherein said sleeve halves are hingedly connected along a first meeting edge via a hinge means so that said sleeve halves are openable and adaptable for mounting on an extended piston rod; a locking means between said sleeve halves at a second opposing longitudinal extending meeting edge for releasably securing said sleeve halves to one another wherein said sleeve is adapted to fit snugly around said piston rod in encircling relation thereto; a half circle portion of an annular flange is disposed on a first end of each of said sleeve halves wherein the diameter of said annular flange is greater than the diameter of a cylinder of said hydraulic cylinder and piston assembly; a half portion of a lock protecting housing is disposed adjacently and in mirrored relation on each of said pair of sleeve halves so that a locking means can be enclosed therein when said sleeve is mounted on said piston rod; an apertured lug extending from and secured to each of said sleeve halves within said lock protecting housing wherein each said lug is apertured for receiving a locking pin therethrough and said locking pin is releasably secured using said key; and an overlying reinforcing band is disposed proximate to a second end of each of said sleeve halves so that stress loads concentrated at said second end are dissipated.