Patent ID: 6354790
Filing Date: 2002-03-12
Classification: E02F

Abstract:
An attachment connectable to a handle pivotally connected to a boom of a machine for performing work functions comprising:an arm member pivotally connectable to said handle; and an extendible strut assembly including of a hydraulic cylinder assembly having a cylinder member and a rod member, one of which is pivotally connected to said arm member and the other of which is pivotally connectable to said handle, and having means intercommunicating the base and rod ends of said cylinder member, at least one electrically operable valve disposed in said intercommunicating means and operatively connectable to control means disposed on said machine, selectively operable to open said valve and permit the free flow of fluid between the base and rod ends of said cylinder member, and the correspondingly angular displacement of said arm member relative to said handle upon maneuver of said handle by an operator of said machine, and to close said valve and preclude the free flow of fluid between the base and rod ends of said cylinder member, and correspondingly the angular displacement of said arm member relative to said handle, and an accumulator selectively communicable with the variable volume chambers of said cylinder member for compensating for the fluid volume requirements of said chambers.