Patent ID: 6598856
Filing Date: 2003-07-29
Classification: E04H

Abstract:
A hydraulic stake pulling apparatus, comprising:an engine mounted on a mobile frame; a hydraulic pump operably driven by said engine; a hydraulic fluid valve selectable between an open position and a neutral position; said open position communicating hydraulic fluid to a hydraulic cylinder mounted in said frame; at least a lifting tube operably attached to said hydraulic cylinder; said hydraulic cylinder operably supported by a base member; said lifting tube operable away from said base member during a use of said hydraulic stake puller apparatus; at least a first attachment member attached to said lifting tube; said attachment member being at least one of a jaw member and a hook member; said attachment member effective to operably receive and retain a stake to be removed during a use of said hydraulic stake puller apparatus; at least a first spring member operably and elastically joining said base member to said lifting tube; and a control lever for selecting one of said open position and said neutral position of said hydraulic fluid valve during said use, whereby in said open position; said hydraulic cylinder is actuated, extending said hydraulic cylinder upwardly away from said base member and driving said lifting tube to lift said at least first attachment member relative to said base member and in said neutral position said at least first spring member elastically urging said lifting tube toward said base member.